WASHINGTON COUNTY ARES
April 2015
NOTES!
VISITORS

Please leave an email address on the sign up sheet
UPGRADES
CERTIFICATE
New
computers for EOCs still waiting…
New
RMS
Templates for Winlink –
Express classes Lisa Clark &
John Core
DSTAR NET
N7QQU B @ SYNOPSIS
Sundays at 6PM Voice 440.550
8PM Digital 440.550
http://www.dstargateway.org/
https://n7qqu.dstargateway.org/
QUAKE EX 1
TH
APRIL 25
0800-1700
State and Federal
CSZ Plans
Practice
Voice
Messaging – Repeat back to sender
A
Joint FEMA-OEM Exercise, June 2016
 FEMA
Region 10 has recently released the Cascadia Rising
Exercise Scenario Document which has just been posted at:
 http://www.oregonaresraces.org/?page_id=559
 This
is a large file about 7 Mb in size with many maps of
expected damage from a CSZ quake based on the most
recent research. Our Spring and Fall SETS this year will be
based on this document. You will find it very interesting
reading.

John Core, KX7YT

ASEC SET Coordinator
ROAD WARRIORS
ANTENNA CLASS MAY 2ND 9 TO 12+
 Dale

Hunt WB6BYU will be leading the training
How many would like to attend
 We
are planning to have a little lunch, bring a little donation to
help pay.

Meat, cheese, rolls, & chips, bring what you want to drink.
 After/during
lunch we will hook a radio and do a contact or two.
May
14th 9AM to 12PM+2hrs
Winlink
Messages
WINDSHIELD SURVEY

WINDSHIELD EXERCISE MAY 14TH 9 TO 12 PM
NEW NAME "SEISMIC
SNAPSHOT"
I NEED TO KNOW WHO IS PARTICIPATING
NCS - ?
COUNTY EOC - NEED 2 OR 3 MORE
STEVE N7BEF
LYNN KE7WKM
NOTE: EM WANTS MOBILE UNITS TO JUMP IN
BEAVERTON EOC - STAFFED
NORTH PLAINS
TIGARD
TVF&R NOC
TVF&R CBOC

Possible players
Hillsboro
Forest Grove
Banks
Non Ham players using various other communication modes
Beaverton CERT
TVFR
Beaverton Police
LUT
SEA PAC JUNE 5TH - 7TH


EC Academy on the 5th
register on OVARC.Org
FIELD DAY JUNE 27-28


A few people want to do this, but we need
leadership and a place, etc...
I will not be in town for this one
DEVIL'S HEAD JUNE 28TH 7AM - 7PM







Mt. Scott Motorcycle Club has asked if we could provide communications for
them
Part of their permit requires that they have comms
This event is in Tillamook forest, centered around Triangulation Point & Diamond
Mill
Only 2 sites needed, one on Triangulation Point, one below at a rally point
Diamond Mill.
This conflicts with Field Day, but maybe not.
After Washington county members tell me how and if they want to participate
I will move on to D1 members next for other volunteers
FIELD ANTENNAS
WB6BYU
FIELD ANTENNA CRITERIA
 Easy
to transport
Different requirements for
 Backpacking
 Compact sedan
 Pickup truck
 Motorhome
 Quick
and easy to set up
 Adequate performance
 Trade-offs
depend on how long you will use the antenna
and the level of performance required for your
application.
VHF ANTENNA CHOICES
 Simple
antenna equivalent to a dipole
 Ground
plane
 J-pole
 Commercial
vertical ~4’ to 5’ long
 Beam
 Yagi
or quad that collapses for transport
 Support
 ANTENNA
 Plan
HEIGHT IS MORE IMPORTANT THAN GAIN
for a height of 12’ to 20’ if possible
VHF RELATIVE SIGNAL GAIN VS. HEIGHT
Getting a VHF antenna up at least 10’ makes a significant difference in signal strength. Further
increases are useful, but above 20’ the difficulty may outweigh any signal strength improvement.
HF ANTENNA CHOICES

Dipole
Often room for a wire dipole, even on 160m.
 For local NVIS operation, may need multi-band capability





Shortened dipoles (especially made from mobile whips)




40m, 60m, 80m, 160m are NVIS options
Manual switching or automatic capability.
Watch radiation patterns on end- or off-center-fed antennas.
Efficiency, bandwidth suffer
Try to make at least half sized
Use a balun.
Vertical: NOT good for NVIS
Add a ¼ wave wire to base of HF mobile antenna and run it out to a tree.
 Great for DX when installed overlooking salt water.


Tuner is helpful when SWR isn’t too high.
Try
to get it up 15-20’, but low antennas can still work.
SUPPORTS
 Telescoping
masts (painters’ pole)
 Sectional masts
 Military
mast sections, tent poles, pipe, etc.
 4’ max is optimum.
 Pick up mast and add more sections to the bottom of the stack
instead of trying to tilt the assembled mast up into place
 How
to hold it up
 Tripod
 Guy
ropes and anchors
 Lean it against a building or through a tree
 Bungee cord to a sign post or fence
 Rope
over a tree branch – use a throwing bucket
ID1 DSTAR RADIO PROPOSED PATH
ID1
Digital
link
WEEKLY TUESDAY NITE NET
7PM 146.900Mhz T127.3hz
Except 3rd Tues
TRAINING NET TUESDAY @ 8PM
146.900MHZ
MORNING HAM RADIO
440.350mhz
Tone 127.3
+5Mhz Offset
CLEAR 0N
YOUR
FINAL
What
Miss
Did I