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FT-18(}/a
INSTRUCTION
MANUAT
YAESUINUSEN
CO.,I"TD.
cPo
Box 1500
TOKYO,JAPAN
INDEX
INTRODUCTION
SPECTFICATIONS
SEMICONDUCTORS
AND SWTCHES.,,..,.,,,
FRONTPANIL CONTROLS
REARPANELCONNECTIONS
................
............................
INSTALLATIONS
..............
oPERATION
........,.,.......
CIRCUITDESCRIPTION
,...,..,
MAINTENANCE AJ{D ALIGNMENT , . , , . . . . .
,.........
MODIFICATIONS
...,,.........
PARTSLIST
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2
3
4
5
7
13
16
28
36
45
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YAESU
F T -18O A
H F S S B S OLI D ST AT ET RANSCEI VER
The FI-180A is a rugged,compact SSB transceiverfor baseor mobile
HF apptications.
Designedto providea typical pEp poweroutput of t O,50 or 100watts
overtho t.6 to 18
MHz range,the FT-180A employsmodem FET and bipolartechnologyfor
;ta;;-ot:the-art
performanceand rcliability.
A! many as 6 channelsmay be installedin the FT-r g0A. once installation
is completed,no
further tuning prccedureis r€quiredfor full opemtion on eachchannel.
The Fi_180A is
paokagedin a heavy gaugemetar casefor excellentmechanicar
stability, and the final
amplifierttansistorsare fully protectedagainstpossibledamagefrom high antenna
Swn.
Optional accesso.ios
include the FC.420 Remote Controlled Antenna Coupler,FH_lgO
Remote Controller with telephone-typehandset,crystal oven for optimum
lrcquency
stability,and XF-Io.7HL-A LSB filter.
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SPECIFICATIONS
GENERAL
FrequencycoveraSej
1.6 - 18 MHz (except for J1 MHz near the
10.7MHz lF)
Emission t]?e:
J3E (USB, LSB), H3E (AM)
(LSB filter optional)
Numberofchannels:
6 simplexor 3 semi-duplex
Operatingtemperaturerange:
- 10 "c to +50"C
Pover requircments:
13.4volrsDC t l07onegativegound
Powerconsumption:
20 ampstransmit,
I ampreceive(100Ww/o ovenrl0 PPMtype)
Transmitterfrequencyrc6ponse
:
300 2700Hz (-6 dB)
Maximumbandwidth:
3 kHz (SSB)
Srability:
Better than 110 ppm
Distortionptoducts:
20 dB or better
Microphoneimpedancei
600 ohms(dynamic)
Tone signal:
1500Hz
Antennaoutput impedrncei
50 ohmsnominal
RXCEIVER
Casesize:
100wtyper95(H)x 240(W)x 310(D)mm V
50Wtype: 95(H)x 240(W)x 290(D)mm
l0w type: 95(H) x 240(w) x 260(D) mn
Weight:
l00W type:6 kg. V
50Wtyper5.5 kg.
10w type: 5.0 kg.
TRANSMITTER
Sensitivity:
SSBbetterthan I llV for 20 dB S/N
AM better than l0 !V for 20 dB S/N
Selectivity:
SSB2.4 kHz at -6 dB, 4.0 kHz at -60 dB
AM 6,0 kHz at -6 dB, l2 kHz at .-50 dB
Receivertype:
Si'lglesuperhetercdyne
Intermediat€ frequency:
10.7MHz
Poweroutput:
As per power amplifiers
SSB- 100 watts;AM - 35 watts
SSB- 50 watts;AM - l7 watts
SSB- l0 watts;AM- 3.5 watts
lF rejection :
Better than 60 dB
Unwantedsidebandsupptession:
Better than 50 dB
Imagerejection:
Better than 60 dB
Carriersuppression:
Better than 50 dB
Audio output power:
2 watts (Q.lO% fHD
Spudousemissionsi
Betterthan 65 dB down
Audio output impedancei
4 ohms
Third orderdistortionproducts:
Betterthan 3l dB down
Specifications
subjectto changewithout notioe,
AKH9TUFT.I8OA
FCCRulePartNo.21.900(K)
.402(D),
81,83,87& 90
t'-
SEMICONDUCTORS
(IC):
2SC732GR
Integrated
Circuits
2SC'7328L
AN6551
|
2SCl583
rcL7660CpA
I
2SCls89
MCI496P
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2SCl8l5Y
MC140t6BCp
I
2Sc181sGR
MCI4572UB
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2 S C1815BL
. p PC l 5 l A
I
a p c 2 0 0 2 V l 2 S C I9 2 3 R 3 l o D l o (S i )4**
2SCI959Y
rrpC?808H
2SC2l66
pPC78L08
2 i*
25C2290
25C2395
FieldEffectTransistors:
2SC24O'7
2SKI92AGR
3
25C2509
2SKl25
4
2 S D288K
3 SK 7 3 G R
9
2SD71?O
Transistorsi
2SD844K
2
2SA564Q
I
2SA564R
Diodes:
2SC496Y
lN2?0
2
1
3
I i*
16
2
I
2
I 'trr*
2 I*
2 i'
2
2 **'*
l1*
2
I
(Si)
151555
1'7
(Varactor)
152208
I
lSS53(Si)
2'1
lSS97
22
(Schottky
barrier)
1N60(Ge)
9
10E1( Si)
14
BZI4O(Zener)
HZSC-I(Zener)
HZ9CI (Zenet)
HZ3CI (Zener)
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2
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2 i"
(2) +'*'l
FC63(Varactor) I
't l00Wmodel
't* 50Wnodel
*** lOWmodel
( ) with crystaloven
l7
ACCESSORTES
.
(YM-36)
Micrcphone
(M3090026)
DCPowerCord
(T9006806)
lOWmodel
(T9006815)
50wmodel
(T9006820)
100Wmodel
MiniatureExtemalSpeaker
Plug(P2240)
(P0090034)
(SH30l0)
Headphone
Plug
(P0090007)
(SC-l2CM)
Accessory
Plug
(P0090078)
CoaxialAntennaPlug (MP-5)
(P0090021)
SpareFuse
10Wmodel
6A (Q0000012)
50Wrnodel
15A(Q0000008)
l00Wmodel
20A(Q0000009)
RemoteControlPlug (P-I620BA{A)
(Poo90l28)
1
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3
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FRONT PANEL CONTROLSAND SWITCHES
( 1) Mr C
(6) METER
This eight-pin connectoracceptsthe microphone
input, as well as push-to-talkcontrol (PTT) line.
The microphoneinput impedanceis 600 ohms.
This switch selectsthe display function for the
fiont panelmeter.On rcceive,this meterfunctions
as a signalstrengthmeter (S-meter).On transmit,
the sourcevoltage,final amplifiercollectorcurrcnt,
rclative power output or reflectedpower can be
displayed.
(2) PHONES
This is a standardphonejack for accommodation
of the headphoneplug.Audio output impedanceis
8 ohms.lnsertion of the headphoneplug into this
jack automaticallydisconneots
the internalspeaker,
(3) POWERON/OFF/REMOTE
(7) MODE
This switchselects
the operating
mode:LSB,USB
(J3E)or AM (ll3E) (LSB filter optional).Do not
operatethis switchwhile transmitting.
Thisis themainON/OFFswilchfor the transceiver
when used.The FH-180 Remote
and accessories,
Contrcller is only switchedon when this switch is
set to the REMOTE(lower) position.The FC-420
Remote Controlled Antenna Coupler and/or optional crystalovenarc switchedon in eitherthe ON
(upper)or REMOTEposition.
This is a manual glin control for the RF and lF
stagesof the receiver.Counteiclockwiserotation
decreases
the RF and lF gain.
(4) NB
This switchactivatesthe noiseblanker.
This control sets the audio output (volume)l€vel
for the receiver.Clockwiserotation increascsthe
volumelevel.
(5) FUNCTION CALIB/CALL
(r0)sQL
This is a momentaryswitch usedfor sendingtone
calling signals,as well as for calibnting the transceiverfor incomingsignals.
The squelchcontrol quiets the receiverwhen no
signalsarc being rcceivecl.This control shouldbe
set to the point where the backgroundnoisejust
disappea$,in orderto retainmrximum sensitivity-
(8) RF GAIN
(e) AF CArN
( l1) CLAR
(13) METER
This control allows fine tuning of the signal
received,for precisetracking of unstableor off_
frequencysignals.
This is the front panel $meter, FWD/REF PO
meter,lC meterand soutcevoltagemetet.
(14) SPEAKER
This is the grill lor the intemol speaker.
(12) CHANNEL
Do not
This switchseleotsthe operatingchanneloperatethisswitchwhiletransmitting.
REAR PANELCONNECTIONS
(r) ExT sP
(5) REMOTE
This is the extemal speakeroutput jack. Insertion
of a plug into this jack automaticallydisconnects
the intemal speaket.
This blue, 20-pinconnectoracceptsthe powerand
control signalsfrom the optional FH-180 Remote
Controller, which providesremote control of the
CHANNEL selector,AF GAIN and CLAR functions, as well as microphone input and audio
output from a telephonehandsetand/or speakerHowever,to use the FH-180,oertainmodilications
must be made withia the FT-180A, the detailsof
which aredescribedon page42.
(2) GND
For best performanceand safety, a good ground
shouldbe connectedat this point.
(3) ANT
This SO-239 j0ck accepts the antenna cable
(4) POWER
Conn€ctthe DC power cord at this point. Nevel
apply AC pover or improper DC input voltages
to this tnnsceiver.
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(5) ANTENNA COUPLER
This 12-pinconnectorprovidespowerand channel
switchingcontrol signalsfor the optional FC-420
Remote Contolled Antenna Coupler,which will
then match the antennaimpedancefor eachchannel as selected by the FT-180A or FH-180
CHANNELselector.
600rl
V I E WE D FR OM "A" SIOE
YM-36 MICROPHONECONNECTIONS
a-b
MICROPHONEPLUG
HEADPHONECONNECTIONS
EXTERNALSPEAKER
CONNECTIONS
IOOIYTtp.:2OA
50W Ttp., l5A
IOW Tt!.,6A
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DC POWERCORDCONNECTIONS
-6
OR
I S A TTE B Y
IOCS U P P LY
TE FMLN A L
INSTALLATION
ANTENNA CONSIDERATIONS
Cut the appmpdatelength of wirc (allowingsome
extra length for fastening)into two equalpieces.
Tie one end of each to a cenmic insulato., and
connect the other ends to the antennabalun (or
center insulator). Connect the coaxial feedline
(type RG8A/U or equivalent)to the antennabalun.
lf an antennabalun is not beingused,connectthe
center conductor of the coaxial feedlirreLo onc
sideof the centerinsulator'swire, and connectthe
shield of the coaxial line to the other side of the
center insulator (therc is no direct connectionof
one half of the dipole to the other). The far ends
of ihe wire elementsmay then be secured,using
nylon rope tied to the insulators.Usingsupporting
poles,hoist the dntennaas high an in the clearas
Possible.
Next to the trunsoeiver,the antennais the most
imporlanlcomponenrin d successlul
communicJtions station, as the communication range is
directly related to the efficiency ol the entennc.
Thereforc,great careshouldbe takenjn the installation of the antennasystem.
lf a proper antennais not otherwiseavailable,see
yolu Yaesudealerfor a speciallyfactory adjusted
YA-10 singleband dipole antenna,YA-ll dual
band dipole antenna,or RSL scriesantenna(for
mobileinstallations).Theseantennasarecapableof
meetingmost rcquircments.
The FT-180A requiresr load impedanceof 50
ohms at the operating iiequency. tf the load
impodanccdiffersgreatlyfrom this figure,the final
amplifier protective circuit will causethe power
output to decrease.If this impedancecannot be
sgcuredon all dcsiredchannelsan antennatuner
must beemployedin orderto providea 5o-ohmload
impedancefor the tftnsmitter.
Checkto seethat the SWRis lessthan l:1.5 ut
the operating frequency. If so, the installation
is complete.The dipole antennaworks best if it is
plaoedhigh and in the clear, so use the highest
support possible.Whcn building the supports,
rcmembcr that they should form a line perpendicularto the line representing
the shortestdistance
to the station with which communioation is
desired.
The followi g sectionwill describetwo common
types of antennaswhich satisiy the impedanoe
roqrirement
ol the FT-180A.
(1) DoubletAntenna
The Doublet,or Dipole antenndconsistsof a halfwavelengthof wire, cut into two equal sections
and fed at the center. At this feedingpoint, an
antennabalunmay be utilizedto prcventunwantcd
radiation from the coaxialcable.Maximumradiation exists at right anglesto the wire. Ceramic
insulatorsshould be installedon both endsof the
antenna,irnd a suitablecenterinsulatormust irlso
be Lrsed.llowever, some types of antennabaluns
inclLrdemountinghooks for thc antennaelements,
thus eliminating the need for a center insulator.
These parts may be obtained from your Yaesu
dealer.The correct length fof a doublet or dipole
antennacan be determjnedbl, usiig one of the
following fonnulasl
Length =
Length =
DoubletAntenna
,168
Frcq (MHz)
t12.5
(meters)
Frcq (MHz)
7
(2) QuarterWaveWirc Antenna
Usually constructedin a vertical configudtion,
the quarterwaveantennais sometimesusedin base
stationinstallations.However,it is more commonly
usedon shipsor yachts,especiallywhen the space
for a doublet antennais not available.The length
of the quarterwaveantennacan be determinedby
usingone of the followingformulas:
234
Lmglh = ;::-;;;E1t.25
Freq(MHz)
(leet)
-"- "'
The wire hils one end connected to a cemmic
insulator, which is, in tun, hoisted up a nonmetallic mast. The other end of the wre is
connectedto the center conductorof the coaxial
oable.For basestation installatjonsat the higher
frequency ohannels,the vertical elementmay be
madeof aluminumflrbing(self-supporting).
Back StayusedasAnteDnaElenrent
The shieldof the coax is connectedto a good RF
ground. The ground systemmay consistof six to
twelvewires3% longerthan tho radiator,extending
radially from the centorol the aDtennalnd bu cd
slightly beneaththe suifaceof the ground.A cold
water pipe may provide a usablegroundin many
instances.On yachts,the ground lbil in the hull
must be used. The vertical radiator must be
insulated from grcund, and it should not touoh
any trces,buildings,or rigging(on yachts).
For all antennatypes,be certainthat the FT-l80A
meter needle, when switched to the PO (REF)
position, staysin the GREEN z.oneof the meter
soalewhile transmitting.If the deflectionis outside
of the GREBNzone, the antennamust be checked
or readjustedfor the correctimpedance.
CROUND CONNECTION
The FT-l80A shouldbo oonnectedto a goodearth
gound for best performzmce and safety. Use a
heavy bmided wie, not morc than 3 meters in
length, for connectionto the station groundbus.
The groundconnectionat the transc€iver
shouldbe
madeat the rear panelGND stud. Whena vefiical
or single wire antenna is usecl,a good ground
connectionis essential.
AntennaElementinstalledseparately
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POWER SUPPLY CONNECTIONS
AC OPERATION
Irc OPERATION
The FP-700will allow opemtion from AC supply
voltases
of 100/110/117l20Ol22O1234
wlts, 50160
Hz. Beforecommencingoperationwith the FP 700,
be absolutelycertainthat the voltag€specification
marked on the rcar of theFP-7oois the samcas
your local AC supply voltage.Do not connectthe
FP-700ACcord to a DC supply. Also, be certain
that a fuse of the proper rating is in use.For 100/
I l0/l l7 volt operation,use a 6 amperefusein the
FP-700.For20012201234volt operation,use a 3
ampeleflrse.
The FT-l80A comesequippedfor operutionfrom a
DC supply. The DC supply should be capableof
20 amperes (100 watt model) for 13.4 volt
opemtion.
Before connecting the power connector to the
rcar apron,be surethe power supply voltagedoes
not exceed l5 volts. Adjust the power supply
voltage,ifnecessaly,to ensuFa safe supplylevel.
A fuse is located in the DC cord for the transceiver.For 13.4 volt operation,a 20 amperefuse
is used.When replacingfuses,be absolutelycertain
to use a fuseof the proper rating,Beforeconnecting the power connectorto the transceiver,verify
that a fuseof the properratinghasbeeninstalled.
CAUTION
Our wananty does not coverdamagecaused
by improper power supply connections,nor
damagecauseclby the use of an incorrect
fuse,
CAUTION
Our wa anty does not ooverdamagecaused
by lhe useof incorrecrfuses.Unlessotherwise
specified,properfusesareas follows:
100 watt model:
20 amperefuse
50 watt model:
15 amperefuse
6 amperefuse
10 watt model:
Whenarllvoltageinspectionshavebeencompleted,
connect the FP-700output voltage cable to the
FT-l80A rear panel POWERjack. PIugthe FP-700
power cord into the w.ill outlet. AC installationis
now colr1plete.
Connect the RED power supply lead to the
POSITIVE supply post, and connect the BLACK
power supply lead to the NEGATIVE supply post.
The DC cord is includedwith the transceiver.
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POWERTRANSFORMERPRIMARY CONNECTIONS
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MOBILE INSTALLATION
A DC cable for mobile installation is included
ri/ith the transceiver.If the DC cableneedsto be
extended,a heavy, low resistancecablemust be
voltagedrop in the cable.
usedto avoidexcessive
For under-dashmounting,a spccialmobilemounting bracket is availablefrom Yaesudealers.This
bracket,modelMMB-2(or MMB-16),allowseasy
mobileinstallationof the FT-180A.
The FT-180A should be mounted where there is
adequatespacearoundthe heat sink to allow frce
circulation of air. Allow a spaceof about 20 cm
behinda.d around the heat sink, and do not posi
tion the transceiverdirectly in the path of the
heaterducts.
When making battery oonnections,be absolutely
certainthat the proper polarity of the power cord
is observed.
Powerconnectionsshouldbe madedirectly to the
battery instead of to the ignition svitch. The
battery providesconsiderablefiltering againstigni
tion noise,while connectionto the ignition switch
circuit.
canplacethe FT-180Ain a noise-producing
The power leadsmust be kept asshort aspossible,
and should be kept away lrom iglition cablesas
much aspossible.
When making battery connections,be certain to
connect the RED power cable l€ad to the POSITIVE (+) battery terminal, and the BLACK lead
to the NEGATIVE (-) terninal.
Befoferonnectingthe DC cxble(o thelransceiver,
checkthe brltery voltagewilh the enginerunning
fast enough to show a charge on the vehicle's
ammeter,or immediatclyafter startingthe engine.
lf the voltage exceeds15 volts, the outomobile
voltageregulatorshouldbe adjusted,so asto limit
lhe mcximumvoltageto lessthan l5 volts.
This transceivershould not be operated from
a power solrrceof lessthan 12 volts. The transceivershouldalwaysbe tumed off when the car is
started, to prcvent transicntsin the automobile
electrical syste from damaging the transistor
circuitryof the FT-180A.
CAUTION
Permanent damage will result if reversed
polarity supply voltage is applied to this
ttallsceiver. Out warranty does not cover
damage caused by reversed power supply
connecttons.
CAUTION
Be ccrtain to obsefle propet polarity of the
power cord when making connectionsto the
vehiclebattery.
_II-
7-.
MMB-2
MOBILE MOUNT INSTALLATION
L.
Listed below are the parts included in the
MMB-2 kit. Only the parts shown with an
astedsk(*) aro requircdfor FT-l80A installation.
*1) Unive$albracketMMB-2
(55000038)
2) cJlch clrirr
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Righl
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anglehinge I R00L'lq2(
*4) Knob screws
5) Screwsfor the catchclip (M3x4)
6) Scrcwsfor right-anglehinge(M3x6)
+7) Screws
for the MMB-2(Msx10)
+8) Lock washerslbr the MMB-2
*9) Flat washersfor the MMB-2
* l0) Nut for the MMB"2
'&e--Krcbsrew
for MMS-2
2.
3.
4.
Use the univercalmountingbracket as a
tehplatefor positioningthe mountingholes.
Use a 3/16" diameterbit for drillingthese
holes,allowingenoughroom for the transceivei,its cables,microphoneand controls.
Securethe mountingbracketwith the screws,
washersand nuts supplied,as shownin the
dmwing.
o
d
cf
Using the slotted knob screws,attach the
FT-180Ato theMMB-2universal
bracket.
d
may be adjusted
The angleof the transceiver
and
to whateverpositionis mostconvenient
easilyaccessible,
cfd
%"o
Figure2
CAUTION
If the FT-180A is installedin a car which has
an Elechonic Fuel Injection carburctor,we
strongly recommend that the FT-180A be
installed as far away as possiblelrom any
equipment related to the carburetorlocated
within the passenger
compartment.
12-
OPERATION
(t ) Mekecertainthat all powersupplyanderound
SELECTIVE CALLING FEATURE
connectionshavebeencofectly made.
(:)
A 1500 Hz tone generatoris availablefor selective
calling.Calibrationand operationusingthis featurc
arc simple:
Connect a 50-ohm antenna for the desired
operatingfrcquency to the rear panel ANT
jack.
(1) Whena 1500H2toneis received
from another
station, set the CALIB/CALL switch to
CALIB and rotate the CLARIFIER control
so your tone matchesthat of the incoming
signal.Your set is now calibratedto the same
frequencyasthat of the other station.
(3 ) lnsert the micrcphone plug into the front
panelMIC jack. If a non-standard
microphone
is used, be sure that the microphonehas an
impedance of 600 ohms. Connect headphones,if desired,to the front panelPHONE
Jack.
(2) To transmit the 1500 Hz tone, push the
CALIB/CALL switch up to the CALL position. The transmitterwill be activatedand the
1500 Hz tone sentfor aslong asyou hold this
switch.
(4) Refer to lhe CAUTION notice on this page,
and preset the controls and switchesas fol
lows:
MODE
To desiredmode
AF GAIN
Adjust later to comfortable
level
RF GAl.'
Fully clockwise
METER
S/FWD
CLAR
12 o'clock position
CHANNEL
Desiredchannel
Fully counterclockwise
SQL
CAUTION
NEVERCHANGECHANNELSOR MODES
WHILETRANSMITTING,
AS DAMACETO
THE TRANSCEIVER
MAY RESULT.AL,
WAYSRELEASETHE PTT SWITCHAND/
OR CALL SWITCHTO DEACTIVATETHE
TRANSMITTER
WHENCHANGINGCHAN.
NELSOR MODES.
( 5 ) Tum the POWERswitchON. The panellamps
and indicatolsshouldbecomeilluminated.
(6) Adjust the AF CAIN oontrol to a comfortable
listeninglevel.
(?) Adjust the CLAR control foi naturalsounding
rcproductionof the incomingsignal.
(8) Adjust the SQL control to the point where
the background noise just disappearswhen
the channel is clear, in order to provide
maximum squelchsensitivity.
(9) lf pulse-typenoiseis prcsenton the incoming
signal, turn the NB switch ON. Most pulsetype noiseswill be eliminatedby the blanker,
although some atmospheric and man-made
white noisewill not be totally removed.
(10) To transmit, press the microphonepush-totalk switch, and speak with a nomal voice
into the microphone.Releasethe switch for
rccerverrecovery.
t3-
FH-IsO REMOTE CONTROLLER
INSTRUCTIONS
Installation
The FH-180 can be installedin any desiredmounf
ing position,and on any sudace,
The FH-180 Remote Contrcller is specifically
dc<igned
ior usewilh lhe FT-| 80A HF Transceir
er,
after the Transceiverhas been apprcpdately
modified. A ten meter cable is suppliedwith the
FH-180to a1lowcomplete
controlofthe FT-180A
from any convenientlocation, and the FC-420
Remote Antenna Coupler, when used with the
FT-180A,is alsocontrolledby the FT-180.The
part number of the ModificationKit requiredfor
the FT-180Ais D3000266,and the procedureis
givenon page42.
1.
The suppliedmounting bracketscan be positioned so that the mounting screwsareeither
underthe Controller,or on eitherside,according to individualrequirements.lf the mounting scrcwsarc to be located underneaththe
Controller, tempomrily bolt the bracketsto
the Controller and hold it in the mounting
position while marking the positionsof the
brackets on either side. Then retnove the
bnckets from the Controller and use the
bracketsas templatesfor loctting and drilling
the mountingholes.
Powerrequirements:
13.4VDC at 1 A, and 8 VDC at 50 mA
(supplied
by the FT-l80A)
2.
Functions:
Power ON/OFF, Channelselection,AF gain
control, Cladfier adjustment,Tone CALL,
Microphone input, Receiver oLltput (from
Handsetand Speaker),PTT (Push'To-Talk)
If the channel liequenciesa.e not already
shownon the channelplate beneaththe handset, write the frequencieson the label paper
and installit underthe channelplate.
3.
After the FT-180A has been modlfi€d, connect the lemale conneotoron the Controller
Cableto the FH-180,and the maleconnector
to the REMOTE jack on the modified FT180A,
Specifications
AF Output:
Spe aker;2W (4ohms)
Handsetearpiece;0,2 W (4 ohms)
HandsetMicrophone:
-68 dBm output (600 ohms)
Dimensions(WHD):
80 x 120x 240 mm
Weight:
l 4 ks.
t4
Operation
Set the POWERswitch on the FT-180A to the
REMOTE position, and set the FH-180 POWER
switchto ON. The geen lamp will light.
Selectthe desiredchannel using the CHANNEL
solectoron the FH-180. &t the SPEAKERswirch
to ON, and adjust the AF GAIN control for the
desied volume level. This control and the AF
GAIN control on the FT-180A function independently,so that only the cofltrol on the trang
ceiverwill affect the speakerin the transceiver,
and
only the control on the FH-180 will affect the
volumefrom the FH-l80 speakeror earpiece.
When privacy is desired,communicationsmay be
conductedonly through the handset.To disable
the FH-180 speaker,set the SPEAKERswitch to
the MUTE position. This will silenoethe FH-180
speakerwhen the handsetis removed from the
cradle, though the speakerwill be reactivatedwhen
the hands€tis replaced.
To transmit when using the FH-180, squeezethe
PTT switch on the inside centet ol the handset
handle, and talk. Releasethis switch to rctum to
rcceive.
The CALL and CLAR controls on the FH-180
function identically to their counterpartson the
FT-180A.
NOTE
The handsetmust alwaysbe pressedsnugly
into the cradlewhen not in use.Otherwisethe
FH-180 speaker will be disabled il the
SPEAKER switch is set to the MUTE posi
tion. and incomingcallsmay not be heard.
m
l' \ d"l
FH-r80
FT.IEOA
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ll
CIRCUIT DESCRIPTION
The block diagnms and circuit descdption to
of the internal
follow will providean understanding
Please
refer to the
design of this transceiver,
schematicdiagrumsfor speoificcomponentdetajls.
RECEIVER
The RF input signal from the antenna is fed
throughrclay RL4or!,lampfuseRoor, and then
a highpassfilter before delivery to pin 2 of Jro0r
on the RF Unit.
The signalpassesthrough individualantennacoils
lbr eaohchannelalld r 10.7 IVIHZtrap, and is then
ampiifiedby Q'm, (3SK73CR),a duit gateMOS
FETwith excellentfreedomfrom crossmodulation
and intermodulation.The amplified signalis fcd
throughan individual
diode-switched
tuncdcircuit,
protects
which
the mixer fron out-of-bandsignals.
The RF sigralis buffercdby Qlo6a(2SK125)and
the output from the sourceof Qr0oais fed to a
singlebalancedmixer,consisting
of Q,oo,.Q,-"
(2SKl25), where the RF sjgnalis mixed with a
local signaldeliveredfrom Q,""' (2SC2407).This
resultsin a 10.7MHz IF signalwhichis delivercd
throughJrooato the IF unit.
The locol signalappliedto the local 4nplilier.
Qloo?,is produccdin the followingmanncflthc
locirl oscillator, consisting of Q60r/Q60ol
(2SCl923R) and fl locdl crystal, generatea
signalfor each individualchannel.The crystal lbr
each channelis selectedby a diode swifch, D6o,
D6o"/D"oo' D6oo6(lSS53) provided for cach
crystal. The control voltage from the channel
switchis appliedto thesediodeswitchesto activate
the appropriate orystal. The outptt from the
oollectorof Q-'/Q6oo, is t'ed to buffer Q6o,/
Q6oo,(2SC1923R),and then delivercdthrough
P 6os( P 6oo5
) / Jt.o . to Q,o o ? o n th e R F u n it.
NOTE:
ln oder to discriminateCARRIER/LOCAL
OSC Units with and without the optional
crystal oven, units with the oven have part
numbe$ of the lbrm 6XX, end units without
the oven have p4rt nurnbersof the form
6OXX.
- t6
Lr
..
The 10.7 MHz lF signalis fed to a commongate
J-FETamplifier,Q,oo?(2SKl25),and the output
passesthrough XF,ono, a 20 kHz bandwidth
monolithic crystal filter, which prcvides e4rly
prctection against IMD produots while allowing
enough bandwidth and delay time for the noise
blanker circuit. The signal then passesthrough
noise blankerdiodesD1o,6 Drors,which act as
switchesddvcn by noise blanker controller Q2o,s
(2SCl8l5GR).The IF signalis arrplifiedby Q,n65
(2SK192ACR), and then deliveredto a crystal
filter for USII, LSB or AM. whcrc Luwanted
adjacentsignalsare cut out. Finaily, the lti signdl
fron the crystalIilter is fed tluough diodeswitches
to a three-stage lF amplifier, a,*, Qroos
(3SK73GR),wherethe lF signalis amplifiedto a
sullicient levelto drive the SSBand AM detectors.
A pofiion of the outplrt from Qrooris fed to buffer
Q,oos(2SCl8l5Y) and detectedby D,o,,, Dro,o
(1N60),resulting
in a fluctuatingDC voltage.
Tlds
voltageis ampljficdby Q,oo,(2SC1815Y),
where
the recoverytilne of this DC voltageis tlso determined.This DC voltagcactsas the ACC control
voltaSe,whioh is fed to gatc I of the RF and lF
amplifiers.This voltxgeis alsodeliveredto S-meter
buffer Q,0,, (2SKl92ACR). Oulput from thc
buffer is delivcred to S-meter amplificr QroD
(25A5644R)and sqlrelchcontrolamplificrQ,or3
( A N6 s s l) .
The buflered outplrt frol11the emitter of Qroos
is alsodelivered
throughAM detecto!diodeD,o,r
(1N60) to AF bufferQlo,o(2SCl8l5Y),and it is
then delivered to AF analog switch Q,oot
(MC140l6BCP)
on the AF unit-Thisanalogswitch
selects
output liom eitherthe AM detectoror thc
SSB demodulator,dependingon the mode of
operatlon.
The SSB si$al from Q,uo, on the lF' unit is
deiiveredto Jsooaon the AF unit, whereit is fed to
product detectorD.,,". D,oo, (1N60), and con,
verted to an audio signal,using the carrier sigral
supplied by crystal oscillator Q6o3/Q6oo3
(2SC1923R) and buffer Q6oa
(2SKl92AGR).
/Q6ooa
The carrieroscillatorchanges
its liequenoydepending on the activatcdmode,and clarifiesth€ control
voltagewith diodeswitchesDuo./Duoo,.D"o,/Duo6g
(1SS53)and variablecapacitordiode D60e/D6oo,
(1 s 2 2 0 8 ).
The selectedAF signal from analoggate eroos is
deliver€d to an active lowpass filter at e3ooe
(2SC1815Y),which eliminatesany high-pitchnoise
on the audio signal.It is then deliveredto buffer
Qroro(2SCl8l5Y). Next, this signalpasses
through
a potentiometer,which controlsthe AF output, to
audio power amplifier Q3or, (ppC2002V), and
is then deliveredthroughJ3oo6
to the speaker.
A portion ol the RX IF signal from e,oo7 is
delivercd to three stages of noise amplifier,
a,or?,Q'0,6andQ,o,a(2SC1583).
Eachindividual
transistor contains two sections,whicl are configured as differential amplifiers.When a carner
or noise-freesignal is rcceived,the noise signal
is rectifiedby D.I)zz,D,a,1 (1N60), producing
a DC voltage. This DC voltage is amplified by
Q10,5(2SClEl5Y),which charges
C,,:o for noise
blanker AGC purposes. This AGC voltage is
usedto controlthe gainofQror?ande,o16,When
pulse-type noise is received, Dro* and Dror3
rectify the noise signal, which controls noise
blankerswitchQ?ors.
Noise pulsesare of very short duration, but high
amplitude.Becauseof the very short time constant
of the RroeT/C,r,sdischargepath, ACC voltageis
not induced by theseshort durationpulses.Therefore, the noise amplifiers operate at full gain,
prcviding maximum voltageto the baseof e,o,a.
When a desiredsignaland noisepulseare received
simultaneously,the blanking action is not impaired,becousethe relativediffercnceberweenrne
desiredsignaland the noisepulseis still high.
TRANSMITTER
ssB
The audio input signal from microphonejack Jor
is fed to J3oo,on the AF unit. The speechsignalis
amplified by Q3oo, (2SC732BL) lnal delivereal
through microphone gain control potentiometer
VR3@r to two stagesof AF amplifief
e3oo,
(2SC?32GR)
and etrooa(2SCl8l5y). The output
from the emitter of Q*oo is applieclto clouble
balancedmodulator Qrooe(MCl495p), wherethe
amplified speechsignaland appljed carder signal
produce a DSB signalat the IF ftequency(10.7
MHz). The balanced modulator provides high
carier suppression stability coresponding to
vadoustemperatureohanges.
The signalis then fed
to Jroo,for deliveryto the IF unit.
The IF signal appeadngat pin 2 of Jroor is fed
throughbuffer Qloo, (3SK73GR)to the appropriate crystai filter for the mode in use(LSB, USB,
A3h) accordingto the instructionsfrom the mode
selector.The rcsulting SSBsignalis amplified by
Qroo, (3SK73GR) and then delivered to single
balancedmixer Qroorand e,oo, (3SK73CR)on
the RF unit. Here the IF signalis mixed with the
local signalfrom the local signaloscillator/buffer.
Finally, the RF signat is amplified by
e,oo,
(3SK73CR)andQ,oo.(2SC2407)
jn the pA unir.
A3h
The USB signal at Q,oo, from the USB filter is
Joinedby a I0.7 MHz carriersignalfrom the carrier
oscillator, resultingin an A3h signal.The carrier
level is determined by VRloor on the IF unit,
sendingthe A3h signalor1the samepath followed
for SSB.
100/s0 w PowER AMPLIFIER
The input si$al is amplified by pre-ddver
esoo,/
,oo' (2SCI589),push-pulldriversQsoo,/eoo',
esoo!/
,oo3(2SC2395),and then fu her amplitiedby rhe
push-pull final amplifier esooa/rooa,
eaoo5/roos
(2SC2290),which suppliesapproximately100/50
watts of RF output. This RF signalis then fed
throughthe LPF unit to the antenna.
NOTEr
Parts with numbersof the fonn 8)O(X arc
used in the 50W model, while thos€with
numbeB of the form 9X)(X are usedin the
l00Wmodel,
10 W POWERAMPLIFIER
The input signal is amplified by driver Q?ool
(2SC2166)and d€liveredto the push-pullfinal
amplifier,consisting
of QrooandQmor(2SC2509).
This RF signalis then doliveredto the LPF unit.
ALC Circuit
A varietyof levelcontrolsystems
argincludedin
the FT-180A for protectionagainstoverdriveand
hish SwR.
At the dirctional coupler the output voltage is
sensed, and wher a high SWR condition existg
the voltageis detectedby D.on, D.o1r (tSS97),
and the overd.ive Al,C voltage is detectedby D.orr,
D.or. (lSS97). Thcae rcctified ALC control
voltages arg amplified together by Q40or
(2S4564Q) and Q.oo, (2SCl8l5Y) (A3h: Q.oorQaod), for thc control ofTX IF stage.
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D I AGRAI.,1
REI1OTE CONTROL UNIT
(NO.15 . )
Pe-24?3
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MAINTENANCEAND ALIGNMENT
This transceiverhas been carcfully aligned and
tested at thc factory. With normal use, it should
rot rcquirc othcr than the usu l attentiongiyento
electronic
equipmcnt.
EQUIPMENT REQUIRED
(1) RF SifnalGenerator:
Hewlett-paokard
Model
606A or equivalent.with one volt output at
50 ohms,and frcquencycoverageto 30 MHz.
Seflice or rcplacementof a n1ajorconponent may
rcqrirc substarrtial
ddjustment.
UnJer no cireumstances,
though.sholtldrealignmcnt
be tttempted
unless the operation of the transceiveris fully
understood,thc malfunction has becn carcfully
analyzcd,and the fault has definitely beenuacco
to misalignment.Suddcn difficulties are alntost
alwayscauscdby componcntiailure,rlrlherthan
misalignmenl.
Sc icc must be peffollnedonly by expericnced
pcfsonnel,
Lrsing
thc propertestequipment.
(f)
VacuumTube Voltmeter(VTVM): HewlettPackardModel 410B or cquivalent,
with an
RF probegoodto 40 MHz.
(3) Dunrmy lotd/wL{ttnreter:
Yaesul\4odelypI502 or equivalent,
with 50-ohmnon reaotive
load impedance,
rrted nt 150 watts average
(4) Two additional50-ohm durnmyloadswith
provlslonto connect all thrce in parallel,or
one I?-ohmdummyload.
PA UNIT
n*
LPE
LPF / ALC
UNIT
REG/CN'TL
UNIT
RF UNIT
CA R R IER /
LO C AL
UNI T
C ON N E C TO R
U N IT
OR OP TIONAL\
RETV|OTE
I
Co NT RO L
UNIT
TOP VTEW
28
I
./
(s) AF SignalGenerator:Hewlett-packardModel
200ABor cquivalcnt.
RECEIVER ALIGNMENT
1.
(6) A generalcoveregereceivercovering3 to 30
MHz,with a 100 kHzcrystalcalibrator.
( 7 ) FrcquencyCounter:YaesuMoclelyC-500or
equivalent,
with resolutjonto O.0l kHz and
frequencycoverageto 50 MHz.
( 8 ) Oscilloscope:
Llcwlett-Ptckard
Model l7:l0A
or cquivalent.
Antenna Coil/RI Coit Atignmerlt
a) Set the CIIANNEL selector to thc cnannet
to be aligned, and thc RF GAIN control firlty
clockwise.
b) Connect the signal gener:ltor to thc
anrenna
jlck, and tune its output
to the onanrlel
frequency.Now set the output lcvelto 90 clll.
c) Adjust the coils shown below for traxrmum
deflection on flre SJneter.
NOTE: Regardirrg
Measurcment
Irvels
Wherl decibel levcls arc quotecl in the following
scctjon(e.9. "Apply a 90 dB signLrl
. . ...), the
rcferer)ce
uscclis 0 dB = I !V. At 50 ohfts, this
ievclis cquivalent
tr) 107dBnr.
Clll:
T,oo:. T,ool
CH:: T,ooa. Troi,.
CH3: T,oft. Iroo,
CH4: Troos, I,oo,
CH5: T,o,n, T,0,,
CH6: T,o,,, T,o l
NOTEiAIi channeisale simplex_For ouplcx
channel alilnnrcnt, sec pagc 41,
stcp 2. lbr translbnncrlocntions.
]F UNIT
AF UNI
VR3(SQL PRESET)
UNIT
n
BOTTOM VIEW
29
RX Mixer Coil Alignment
IF Coil Adjustment
Set the CHANNEL selectorto any installed
channel, and the RF GAIN control fully
clockwise.
a) Set the CHANNEL selectorto any installed
channel, and rotate the RF CAIN control
fully clockwjse.
b ) Setthe signalgeneGtorexactlyto the channel
frequency,and apply a 90 dB signal.
b) Apply an 80 dB si$al
from the signal
generatorto the ANT jaok. Adjust thefollowing coils on the IF unit for a maximumrcading on the S-meter.
c) Now adjust T1016for maxirnum deflection
on the S-meter.
T'oor
-T:o*
3.
RX Trap Coil Alignment
Thesecoil. should be aligneLlin lhe gjvcn
order, or the co!rcot pcak may not be
obtained. This procedure should also be
repeateda few times to obtain correct alignment.
a) Set the CHANNEL selectotto any installed
channel,imd connect the audio voltmeter to
the speakerjack.
b) Connectthe siglal generatorto th€ antenna
jack, and applya 100 dB signalat 10.7MHz.
Adjust Troo, md T,o'4 a few times for
minimum indication on the audio voltmeter
and $meter.
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RF UNIT
30
5.
b ) Apply a 90 dB signalfiom the signalgenerator
to the ANT jack, and adjust VR,ooa for a
deflection
of 59+60dB.
NB Coil Adjushnent
Set the CHANNEL selectorto any installed
channel,and oonnectthe signalgeneratorto
theANTjack.
c) Reducethe amplitudeof the signalgenerator
to l0 dB, and adjust VR,oo, to the point
wherethe S-meterjuststartsto deflect.
b) Connectthe DC voltmeter to TPoTon the IF
unit, and adjust the signalgeneratoroulpur
to 40 dB on the channelfrequency.
RepeatStepsb and c until the properdeflection is obtained.
c) Now adjustT.o,r, Tro,, and Trorofor mtnl-
7.
mum deflectionon the DC voltmeter.
ProductDetectorAlignment
w. t h o u t a p f , ly in ea n ) 5 ig n a ro
l rh . r e c e i v e f ,
adjust VR3oojfor a minimum rcadingon the
S-meter.
SMeter Alignment
Without rpplying any signatto the ANT jack,
and with the RF GAIN control fully clockwise, adjust VRroo. to the point where rne
S'meterjust startsto deflect.
I
)
IF UNIT
3I
-
3,
TRANSMITTER ALIGNMENT
a) Set the CHANNEL selectorto any installed
While performingtransmitterilignments,the ANT
jack must be terminatedby a 50-ohmload,unless
otherwisespecifiedin the steps.Failure to follow
this precaution will void the waranty of this
equipment.
1.
channel, and disconnectPo3 from its jack
(J'oo3) on the RF unit. Connectthe RF probe
of the VTVM to Jroo3
.
b) Now adjust Trors on the RF unit for a
maximumreadingon the VTVM.
l\,[odulator
Coil Alignmenr
Balanced
plug Pr" from its jack (J,oor)on
a) Disconnect
the IF unit, and teminate Pr3 with a 50ohm rcsistor. Connectthe RF probe of the
VTVM to P,s.
4.
TX IF Tmp Coil AliSnment
Note: If a spectrumanalyzeris not available,
do not proceedwith this aliglment,
as the spuriouson 10,7MHz that nay
resultcannotbe properlyobserved.
b) Tum the CALIB/CALL switch to CALL, and
adjust T3uorfor a maximum readingon the
VTVM.
2.
TX Mixer Coil Alignment
a) Set the CHANNEL selector to the closest
frequency to 10.? MHz of the installed
frequencies,and the MODE switch to A3h.
Connectthe spectrumanalyzerto Jroo3on the
RF unit.
CarrierNull Alignment
a) Set the MoDE switch to USB, VR.oo, fully
counterclockwise,and set the CIIANNEL
selectorto an installedchannel.
D)
b) With an externalreceivertunedto the channeL
fiequency,closethe PTT switchon the microphone. Now adjust VRroo, for rtlinrmum
on rheextemalreceiver.
sign3lindjcation
a:r I
AF' UNIT
32-
Now close the PTT switch, and adjustTrolr
for a minimum spuriouslevel at 10.7MHz
on the spectrumanalyzer.
8.
TX lF Coil Alignment
a) DiscoflnectPo6 from its jack (Jroo6)on the
Note: Do not switch channels or modcs
duringtransmission.
Preset
a)
the potentiometersand MODE switch,
as follows:
VRr-,
AF Unit
Full) counterrlockwise
VR,oo, IF Unit
Fully clockwise
VRo*, LPF Unit Fullyclockwise
VRroo: I PF Unit Fullycounterclockwise
vR,uo' LPF Unit Full) counlerclocku
ise
MODEswitch
A3h
RF unit, and terminatePo6 with a 50-ohm
resistor.Conneclthe RF probe of the VTVM
to Por.
b) Adjust Troor and Tzoo,for maximum dellection on the VTVM.
IC Meterand Idling CurrentAlignment
a) Disconnect
the +13.5volt lineto the PA unit,
and connect an ammeterir1 serieswith the
line. Tum the CALIB/CALL switchto CALL.
D./
b ) On any channel,close the PTT switch and
adjust VR,oor for a poweroutput of 50 watts
(50W PAI
on the dummy load/wattmeter.
25 watts;I0W PAr 4 watts)
Adjust VRsoorso that the readingon the lC
meter will show the somevalueasthat or tlre
c) Check the power output for eachfrequency
and set the CHANNEL selectorto the channel
at whichminimumpoweris obtained.
c) Now releasethe CALIB/CALL switch,And
set VR3oorfully counterclockwise.Pressthe
PTT switch,and adjustVReoo,(100WPA),
VRsoo,(50w PA), or VRnr, (lOW PA) for
a readingof 100 n1Aon the ammeter.
1.
ALC Alignment
Q)
Again adjust VRroor for a power output of
(50W
67 wattson the dummyload/wattnreter
PA: 33 watts;l0W PA: ? watts).
e) AdjustVRaoo,for 35 wattson the wattmeter
FWD MeterSetting
(50WPAr l8 watts;IoW PA: 4 wotts).
Now sct the MODE switch to USB, the
CALIB/CALL switch to CALL, and adjust
VRoo6. for a readingof 100 watts on the
dumm) lord/wrrrmer<r(50W PA: 50 warts;
low PA: I0 watts).
Tum the CALIB/CALL switch to CALL, md
adjust VRsoo, to 80% of lirll scaleon the
S/FWDmetcr.
iu
tE
LPF/ALC UNIT
33
to 50 ohms). Tum the CALIB/CALL switch
to CALL, and adjust VRaoor for 75 watts
power output, as indicatedon the wattmeter
(50WPA: 37.5watts;10WPA: ?.5 watts).
Releasethe CALIB/CALL swrtch, and apply
a 2 mV 1000Hz siglal from the AF generator
to the MIC connector'Set the MODE switch
to SSB(USBor LSB).
the point where the
specified power output is obtained on the
dummy load/wattmeter-
Note for 50WModel:
Never attempt to adjust VRroor or VRaoo3
without performingthe entireALC alignment
procedurc, as this may cause the final
transisto$ to exceed the specified power
b' overhealing.
oulpul.lecdinglo damage
h) Adjust VR3oo1 to
Connect three 50-ohm dummy loads m
parallel, so as to present a 17-ohm load
to the amplifier (l:3 SWR with rcference
d
50w/100wPA UNIT
34
COMMONCIRCUITS
l.
c) Removethe VTVM from P6o2aanalconnect
the frcquencycounterto the plug.
Set the CLARIFIER control to the center
position, and adjust the core of T6001ror a
readingof 10.700MHz.
Carrier/LocalOscillatorAlignment
Note: When the optional crystal oven is
installed,there is a differencein the
part numbers used in the FT-180A.
Part numbers of the form 60XX
should be read as 6XX (e.9., D6oo6
+
e) Now closethe PTT switch and adjustTC6oo?
for a rcadingof exactly 10.700MHz.
Next, rcmove the counter from p6oraand
connect the frequency counter to J1qq5on
the RF unit.
D6 06 ).
c)
a) Disconnect P6o,afrom its jack (J3oo3)on the
AF unit, and connect the RF probe of the
VTVM to P6o,a.
b) Adjust T600, for maximum deflection on the
VTVM. The nominal value is approximately
0.2 volts.
The local oscillator frequency must be
rJjustedb, the appropriare
lrimmercrpdiitor, corrcsponding
to the CHANNELselector.
Adjust the trimmer capaciton on the CARRIER/LOCALOSC Unit as shownbelow,ro
the exactcrystalfrcquencies.
CHI I
CH2:
CH3r
CH4:
CH5:
TC6oo,
TCoon,
TC6oo.
TCun*
Tce,os
CH6: TC",,u
Tone OscillatorAlignment
TC.
Connect the fuequencycounter to Tp.0o1
on the AF unit, tum the CALIB/CALL switch
to CALL, and adjust VR3oo6for a frequency
of 1500Hz 120 Hz.
i
Connect the AF voltmeter to the intemal
speakerteminals, and tum the CALIB/CALL
switch to CALIB. Adjust VR3oo5on the AF
unit for a reading of 0.45 volts on the AF
voltmeter,
c) Connectthe AF voltmeterto TP3or. tum
the CALIB/CALL switchto CALL, and aojusr
VR3ooafor a readingof 80 mV on the AF
voltmeter.
CARRIER/LOCALUNIT
RIGULATOR/CONTROL UNIT
35
7
MODIFICATIONS
LSB FILTER INSTALLATION
l
Removethe bottom coverof the transceiver'
analcarefullydisconnectall connectorson the
tF unit. Then, unscrew the four lF unit
mountingscrewson the cornen of the unit-
2)
"l
-;"1
"1
--.1
Install the LSB Filter on the IF unit usingthe
nuts provialed,in the spacebesidethe existing
IF filte$. Solderthe pins of the filter to the
circuit board.
I rr uur
I
lnstall the IF Unit in exactly the same
conflgumtion as beforc, and securcit with
the mounting scrcws Connect all plugs to
their jacks,a d closethe tmnscerver'
BOTTOMVIEW
XF.IO.7HL-A
X F -1 0 . HU-a
7
i
I
FILTER
- 1 0 . 7HA
LSB FILTER
36
OPTIONAL CRYSTAL OVEN INSTALLATION
1)
Removethe bottom and top coversfrom the
chassis.
2)
On the bottom side of the tftnsceiver,disconnectPre on the lF unit, and Pr4 on the
AF unit. On the top side,disoonnectPo5and
Po? on the RF unit. (Refer to FigurcsI and
2.) Note: if the Remote Control Unit is
installedoverthe RF Unit,it must be removed
to access
Po?on the RF Unit.
preuously remained loose, near the CARRIER/LOCAL OSC Unit. (Refer to Figures2
and3.)
7)
Crystalsused in the oven differ from those
used wjthout, and so new crystalsmusr oe
installed when the oven is added. See the
procedureon the following page.
J , r/P;.,(P" :,)
J?tn7 /P6e(P
Unscrcw the four CARRIER/LOCAL OSC
Unit mounting screwsmarkedA on Figure2.
Then rcmove the CARRIER/LOCAL OSC
Unit mountingplate from the unit.
+) Affrx the mountingplate to the crystaloven
with the screwsremovedstep3.
s)
Securethe crystal oven with the mounting
plate, in exactly the same configumtion as
Ihe CARRIER/LOCALOSCUnir with previousry.
6)
Connectall plugs to their approprilte jacks.
(P6o5to J,oo., P6o7to lioo?, P61,to Jroo?and
P614to J3oo3).
The heatercable(P6ao)should
be connected to Pje. This connector had
BOTTOMVIEW
FigureI
Jnu/Patt
TOP VTEW
Figure2
J LoaJF
TOP VIEW
Figure3
6111)
CHANNEL INSTALLATION PROCEDUR.E
SMPLEX
The channelinstallationrequiresa channelcrystal,
capacitors,coils,and somejumper wires.The exact
value of theseparts should be detemined in accordancewith the followinginstnrctions.
1.
Referringto Figure4, install the crystalsinto
the socketson the CARRIER/LOCAL Unit.
Be sure to install the corect crystal in each
socket,accordingto the channelnumber. If
theFT-l8oAis equippedwith a crystal ovFn,
the CARRIER/LOCAL Unit is locatedwithin
the oven.
2.
Unplug all connectorson the RF unit, unscrewthe four mounting screws,and rcmove
the RF Unit from the chassis.
3.
Referringto Figures5 and 6, notice that each
of the six channelshas two transformers,
together with their associated capacitoA,
which must be selectedto correspond
with the
desiredchannelfrcquency.Obtain the corect
values for these ttansfomers and capacitors
from the BAND TABLE on page44, and
installin the correctlocationson the RF Unit.
The fomula below is usedto determlnethe exact
crystalfrequencies:
Crystal = Channelfrcquency + 10.7MHz
NOTE:
The specificationsfor crystalsused with the
oven differ from thoseusedwithout the oven,
so when orderingcrystals,pleasestateclearly
thc 8-digitpart number1H...)givenin the
Tablebelow,alongwith the channelftequency.
CIIANNELS
or CH3RX only
CH3simplex
or CH2RX only
CH2simplex
CH1simplexor CHI RX only
or CH3TX only
CH6simplex
CHssimpl€xor CH2TX only
CH4simplexor CHl TX only
used
Theselo€ations
for RXcrystalsfor
channels.
semi-duplex
Thoselocationsus€d
{or TX crystalsfor
channols
s€mi-duPlex
CRYSTALTOCATIONS
Figure4
CRYSTAL DATA
X 6001 X 600/i
x6ofi
H0!0:387
F r c .ru c tru y
I HC4ljjU
IT
I 1 0 .7Ml l z
Ilotle
lf-.,.-*
r
Iloldcr
t
'r'J
Iror,-,::re l
inr
Lf. tl c l
fFuDJ
ut dinr
. nt
,."*
\ . , r 1J ! r r J r c c
I
]
: . r 1l
P r r a lte lcu F icita n cc
"*
3 4 DfI0 lp F
|
l.s. th ., 4 0 J]
. r v! i!.\h r . i
F r e q u e n cto
r l c rl n c e ] i 5 0 l l z
" tJ b i l i tr
n\ e n tc m N rJ ru re
|
!l n p p mr
H0t0:390
IIc-:l:lU
C l l + l 0i (!l II7)
(l l .l i uH zro
18.7N l H z)
C H+ 10.I (i Il l z)
( 1:.1 MIIZi .
:l l .7 vIk)
l0 7 NiHz
r -l.*^....-t
Fl D
r rdr o
dncnhl
'N n t J l
llo: 'Pt F
i :6 DtF
14 DF
5pFI05pf
. l 4 l 'F 1 0 l p F |
5 l 'F , O i I F
l s\ I[rn 40
lesr thxr 40o
llss lhnn ,10!2
l r..\
U, \. .r(1
f Rq u c ,R \
l-xuorxooi
x60l
p' n
I 'lo t
l 0" cn' 50' cr
] ,.u
fio"'
fr **
l-r4l
!0.l 5 ppmr' C( ?0' ( to 80" C )
75" C1 3' C
38
For example;toinstall 2182 kHz into channel
1, find the valuesfor 2.0 2.5 MHz in the
BAND TABLE. Therewe find that the tlansformeff shouldbe part no. L0020973,and the
capacitors,100 pF. From Figures5 and 6we
see that the transfomers shouldbe installed
in locationsT'oo, and T1ooj,and the capaoi(for CH 1).
torsin locations
Croz1andC1os3
4.
cH l cH 2 C H 3 C H 4 C H 5 C H 6
Pa A in Figures 7 and 8 illustrates the
jumper wiresthat must be connectedbetween
Jo7 and Jrr or Jn on the RF Unit (if all six
channelsare to be simplex).[f somechannels
are to be semi-duplex,install only those
jumpers coresponding to the simple channel(s).
J.i
J -r
J,,tJ
FX CH
J
T^ CH
SELECT SELECT
iJ:;
Figure5 RF Unit
-lF
I
T
l* Etrnl
-iF
RF Unit - componentside
Figure6
39
5.
Refering to Part B in Figures7 and 8, install
a jumper from rhe point adjacentto the pin
of lro corresponding
to lhe channelbeing
point
installedto the
connectedto the pin of
Joe correspondingto the LPF whose frequencyrangeincludesthe channelfrequency.
For example,if ChannelI is to be 2182 kHz,
connect the jumper from the point next to
pin 2 of J1oto the 1.6-2.6MHz point next
to Joe. If morc than one channelis in the
same LPF bimd, simply make multiple connectionsto the point adjacentto Joe.
NOTE:
Improper jumper colmectionsmay damage
the lowpassfilte$ and final transistors.
When all desiredchannelshavebeeninstalled,
rctum the RF Unit to its odginalpositionand
rcplaceth€ mountingscrcwsand connectoF.
Figur€7
^
Chan.ersl-3 and 4 6 jumoered
L P F F F E O U E N C YF A N G E
j",^?'.
.
Xv
4.".11,
Rl5 y R ? 3 t _ t>
L,- !1","t I t.t
'Ax
vw 61
I
I
I
I
1 . 6 r v l B z- 2 . 6
2 r-Jaa/
: rP03r6ootER
u 3 + ,2 m ;P
vl ll
-.
iFu'f'|/.,"v
o
l-:--"er+rl
Po ti l
ll
l- . ro 6 l T x
cH2 cH4 CH6
B
c
:f c!31lif
v; R53t t,\
cH l cH 3 cH 5
^/Hz
E
l1 1 MHz
1 8 . 0M N z
E! rpr selecr luupeatcHl 2rg2kHz)
B rer tu.p"o
RF UNIT
40
PB_ 22698
(tro. I
SEMI-DUPLEXCHANNELS
1.
2.
Referring to Figure 4, on the CARRIER/
LOCAL Unit, install the RX crystal for the
semiduplex channelinto location l, 2 or 3;
arrd the TX crystal into location 4, 5 or 6,
rcspectively.That is, if CH I is to be semiduplex, the TX crystalgoesin the CH 4 position; CH 2 semiduplex TX crystal in CH 5;
and CH 3 semi-duplex
TX crystalinto CH 6.
Referringto the BAND TABLE on page44,
detemine the valuesof the transformersand
capaciton neededfor the RX and TX frequencies.Install theseparts in the locations
listedbelow and shownin Figures5 and 6.
CHANNELI:
cH I ( R X)
cH 4 ( TX)
CHANNEL2:
cH 2 ( R X)
cH 5 ( TX)
CHANNEL3l
cH 3 r R X)
cH 6 ( TX)
T,oo,.T,"-, C,n,,, C,o.,
T,oos,T,o-. C,n-, C,o.u
T,oo4,T,0"5.C,m2,C,o54
Tro,o,T,0,,,C,n,,,C,0,,
3.
Install the ChannelSelectorJumper(s)fronl
point adjacentto Jo? to the point adjacentto
J'1 for the semi-duplexchannel(s)being
installed,asshownin Figure9.
4.
Referringto step 5 and Part B of Figures7
and 8 in the Simplex Channel procedure,
install the LPF jump€r(s)for the TRANSMIT
frequencyin the CHl, CH2 or CH3 positions
(points in common with pins 4, 5 and 6 of
Jro, respectively).
Do not install any LPF
jumper for semi-duplexchannelsin the CH4,
CH5 or CH6 positions.
5.
Referringto Figurc 10, out the wirc to connector Prr that coresponds with the CH
location that is being used as the transmit
liequency for the semiduplexchannel.That
is, if CHI is to be semi-duplex,cut the wrre
to pin 4 (designatedCH4 in Figure l0). For
CH2 semi-duplex,
cut the wire to pin 5 (CH5);
and for CH3 semi-duplex,the wirc to pin 6
(cH6),
T,ooo,T oo-.C,o:,,C.05,
T,0,,. T,o,,. C,o,". C,o,c
SEMI.DUPLEXJUMPER CONNECTIONS
FiSure9
RF Unit
(currorC B 3ssmndupr er )
CH
ON SEMI.OUPLEX
CH6
( c ! t r o r c H 2 i € m i l l p e xl
/,CH5
t.ut tot cHl in).drpte4
/ / .cH4
/',-CH3
lc,}l,z
/ra
--Z,/-Cj-l.l
Fieurel0
4 l-
-l
>ooNor cLrr
)
FT-180A
MODIFICATIONPROCEDURE
FOR USEWITH THE FH.18O
6.
Co lect one end of each of the supplied
connection cables to the RF Unit: Plo to
J'6,6,P1' to J161'
, andP" to J'o" .
Kit required:Part numberD3000266
'7.
Referring to Figure 12, install the Remote
Control Unit (suppliedwith the kit) usingthe
the suppliedmounting screws.Makesurethat
no wiresor connectorsarepinchedor trapped
beneaththe Unit.
8.
Connectthe other endsof the new connection
cablesto the Remote Control Unit: Pa, to
1.
2.
3.
Disconnect the FT-180A from the power
source,and removethe 4 screwsaffixing the
top cover-Loosen the side plate scrcws,and
removethe cover,
Refefiing to FigureI 1, locate the two scrcws
affixing the Connector Unit. Removethese
screws,but do not rcmove the connectom
from the Unit yet.
J7o5,P so to J7o6, and & r
toJ7o7.
Disconnectthe following plugsone at a time
frcm the ConnectorUnit, and connectthem
to the jacks on the RemoteContrcl Unit: Pa5
to Jror. P4" ro J,or. P4 lo J-or and P.s ro
Carefully disconnectplugs Pro, Pr and Pu
from RF Unit (previouslybeneaththe Connector Unit). Also disconnectplugs Pa3and
P44iiom the ConnoctorUnit.
I,oc.
10. ConnectPs, from the newCHANNELselector
4,
5.
Removethe CHANNEL selectorknob,mounting nut and washer,and removethis switch
and its wires disconnectedin the previous
slep.
switchto Jios on the RemoteContrcl Unit.
Il.
Replacethe top cover and its 4 sorcws.This
completesthe modification.
Install the new BCD switch suppliedwith the
kit, with wircs and plug Ps,.
TOP VIEW
C H A N N E L S WI T C H
J1010/P 10
r 00|]
u
' fI, qJ1o11tP1t
J1606/P48
J16 05/ P47
J1 60 1/ P43
- CO NNECTO F U N I T
J1O12tPt2
n
ll
J1603/P45
l n r u rtr
\
nr ur ' t
CONNECTOR
UNIT
Fig. 11
42
C H A N N E LS WI T C H
REM OT EC N T L U N I T
Jt01lP45
'J702/P46
TOP VIEW
Fig.12
REMOTE CONTROL UNIT
43
tBAND TABLE
FREQ.
RANGE
MODIFICA,
TION
KIT NO,
FREQUENCY
RANGE
TR]ANSFORMERS
T'ooz-T,or,
Qtv
D3000116 1.6
2.OMHZ
r,m20973
2
D3000117 2.0-
2.5MHz
LO020973
2
D3000118
3.0 MHz
LDO20973
2
2.5-
CERAMICCAPACTTORS
(c'o'r
oru, c' o
os
'
'.-'
')
Qty
50wV 180pF
CH(K0217s181)2
2.o 2.2sMHz 50wV 120pFCH(K02175121) 2
2.25 2.sMHz sowv 100pFCH(K02175101) 2
2 . 5 2 . 7 5 \ 4 Hz5 0 wv S )p F CH(K 0 258
1 2 0 , 2.
2.?5- 3.0VHz 50wv s5prCH(K0)l75so0)2
3.0- J.25MH2 50WV l50pl cH(X021-5151) 2
D3000119 3.0-
3.5MHz
LD020974
2
D3000120
3.5-
4.5 MIIx.
1.00209'74
2
D3000121 4.5-
5.0MHz
L00209'74
2
D3000122 5.0-
6.0MHz
t 0020975
2
D3000123 6.0-
7.0MHz
L0020975
2
D3000124
8.0 MHt
L0020976
2
50Wv 5lpFCII(K02179015)2
D3000125 8.0- 9.0MHz
L0n20976
2
50wv 39pFCH(.K02175390)2
D3000126 9.0- 10.2[LHz
LO020917
2
sowv 39pFCH(K0217s390)2
D3000401 10.2
- 11,7MHz
L00209't1
2
50WV 27pFCH(K021?5270)2
D3000127 I1.7- 14.0MHz
LO02097',7 2
50WV l5pFCH(K02175150)2
D3000128 14,0- 17.0MHz
L0020971
2
sowv
6pFcH(K02173060)2
D3000129 17.0- 18.0MHz
LO020971
2
s0wv
3pFCH(K02172030) 2
7.0-
3.2s 3.sMHz 50wv l20prCHG02l7s12l) 2
3.5 4.0MHz 50wV 100pF
CH(K02175101)2
4.0- 4.5MHr 50wv 75pfCH(K021-9018)2
50WV 55pFCH(K02175s50)
s.0- 5.5MHz 50wV 62pFCH(K021790I-) 2
5.5- 5.0[4Hz 50WV a'pFCH(k0217s470)2
6.0- 5.5MIL
50wv 39pFCH(K02175390)2
6.s '.0 MH7 50wv 33pFCH0(021-5330) 2
* Channelfr€quencies
9.1 MHzIF version.
in tluslangecannoibe installedin the special
** Channel
in thisrangecanonly be installed
in the special9.1 MHzIF version.
frequencies
44
PARTS LIST
Pl
(wilh wtre)
P 2(
Q1
c3408440Y 2 SD 8 4 4 Y
"
)
)
)
"
)
P ro ( "
)
P]
t4
DI O DE
P8(
10F1 (Al\I)
ls 1555
Dl, 2
D3-8
D9
c2090306
c 20 1 5 5 5 0
G2Q90421
R1
J 10 2 7 6 1 0 0
R2
'
r 10 2 7 6 1 0 1
Carbonfilm
t0\215472
J 32 0 0 9 0 0 1
J 32 0 0 9 0 0 1
0 .0 2 5 r J
r32009004
0.025J)
si
"
1SS5- l
Pll
PIZ I
P 11t
Rl ,s
1 /2 WG J 1oft
100n
1,'4wTt 4.?ko
"
?15
Pt6(
P1?(
I
,
,
c6 -1 2 ,14
c1 ,2 ,1 3
(:5
MI
J 62 8 0 0 0 s 9 DMr0A6?9,\ l0Ifr,\.10kIrlJ
fj t\l l 0 A6 ? 9 -l
A o k j l B x2
J62 800J 58
v 1 0 K.8 .1 .25 K B
J 50 ?r0 5 0 2
)
P?.11
P26( ,
)
)
ELr(
)
)
P 32
Pl3
!11! r'
"
lll(
P 36(
0 01/]l: P 37(
(D D t0 6 ri 0 3 2 5 0 v_)
P l 8(
,
0.047!l l P r9(
rrlrmog(D DI1 0 F 4 7 3 2 5 0 V)
,
Ktrl49or5
2 5 WV Ol ]:f
(J t tl x t0 4 K .L 4 6 Al )
22A l hl
K 40 1 4 9 0 0 6 Ii l c rto l y ri c
(2 5 R L ? 2 0 0_).
!4!4c1roR
K l3r 7900rJ C{.1tui.dis. 50WV
Nt 0 2 9 0 0 2 5
)
)
P 7o(
lq !!?e(
vl{2
vRl
)
"
)
)
)
)
)
)
5251.02
T9204201 525109
T9204202A 52510.2
T9204:01
5? 02
5251-02
'19244241
2
r208
s251-06
T9204209! 5251.07
T92012OB
525r-06
5251.06
!2]942 I B
T92042
5251-02
f97442
5251-10
T920,121,1 525102
T92042r5
5?5105
T9204200
I92A4216A
T9204218A
525t-12
T9204219A
T97A4221
r91A4222
't9204211
't9201124
T920122s.{
52510?
s251-07
5251-06
5251-lI
[.ad
5251,11
'19204216
'19204121
' 192i ]4228
't92t4229A
T9204210
siii-r:
5219,03
llJ 1-!8
52.f!L
i?!1i11
l?sL.o3
rt2oa23r 525107
rlzorisu,r sMll{3v-u
LA MP .--.'_------.,'.'-'--_
(11000045
l 2V l 5ni A _ K 0,:1 03, ( j( r __
l 4v0.t2A
Mt04l 5 9
rr4eren
170
SP€AKER
v 40 9 0 0 5 5
!!L
r;4w-tttiii
l
R l. t
lllt 0 9 0 0 t8
s2
sl
s,1
s5
N20 9 0 0 2 1
N20 9 0 0 2 6
\ r 0r9 0 0 8 5
N01 9 0 0 s 9
N01 9 0 0 3 8
sRN2044
s R N t0 4 l
sRN3066
Nor9olt l
t:tras Luau
N20 9 0 0 2 1
N20 9 0 0 3 2
8 A-3 0 2 1
i P2ooo.o4
ruvlr
Q6000061
-56l Ran=bt;i
st a FT180t
sl (FT 180A )
34:?1111
P!-2269(
(r rrMH z)
Js(rT-180)
P 00 9 0 1 5 8
P 10 9 0 1 3 4
P 10 9 0 0 0 s
P 00 9 0 2 1 s
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(L C Q1 2 ? 50J5)
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K 40129008 Electrolytic
(16REl3)
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(r6RLr0)
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L4030,4035
t401t.4014
L4001 4006,
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P 0090218
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c 4015
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c022710A P.C-Boardwilh components
( ( J ATt 3Xl 0 4 K L 4 6 A E )
c4099
K 7 0 1 6 7 1 5 4 Tanrarum 35WV
(c s 1 5 rl v R l 5M)
K t0 1 6 7 6 8 4
c 4099, 4t 00
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G1090183
c1090017
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P 0090219
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l/4wSI 2?0o
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L1020035A
L1020015
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L0020289A
L00206318
L0020632
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