Advanced Communications User Training (ACUT) New Hampshire Wing, CAP Version 1.3 May 26, 2010 1Lt Tony Immorlica Communications Training Officer New Hampshire Wing 1 Advanced Communications User Training (ACUT) CAP communication systems: standards and rationale Radio Basics: Familiarity with different radio modes (e.g. AM, FM, SSB) Radio Propagation and Frequency Bands (i.e. HF, VHF) Repeater Basics: Operation, use and restrictions Radio Operation – Model specific overview Calling Procedures Formal message preparation and handling Network operating procedures It is assumed the student has read and is familiar with CAPR 100-1 and 100-3 2 ACUT Completion and Credit Prerequisite for this course: BCUT Successful completion of the ACUT requires passing an open book test: Working knowledge of CAPR 100-1 and 100-3 is assumed A passing score is 80%, corrected to 100%. No documentation is issued Trainee records accomplishment in personnel record [CAPF 45 or CAPF 66] Instructor notifies Wing Licensing Officer of those successfully completing ACUT training 3 CAP Radio Operator Authorization Authorization is currently done in two phases: 1. Basic Communications User Training - BCUT 3-4 Hour Class on: Standard Operating Procedures Local Operating Procedures Entitles CAP member to operate a CAP Radio Issued a CAPF 76, Radio Operator Authorization by Wing or higher headquarters 2. Advanced Communications User Training - ACUT 4-5 Hour Class Pass the Advanced Communications User Test Entitles CAP member to be assigned a call sign Required as part of the Communications Specialty Track NOTE: BCUT and ACUT will soon be replaced by a new Introductory Communications Users Training [ICUT] course; release date is pending 4 Operation of CAP Radio Stations by Unauthorized Personnel The operation of all CAP Radio Stations must be under the direct supervision of a properly authorized Civil Air Patrol radio operator. Pilots/co-Pilots must have taken BCUT training as a minimum to operate CAP VHF radios 5 CAP Radio Station Licensing CAP is considered a federal agency, thus its Radio Stations are licensed by the National Telecommunications and Information Administration (NTIA) Public stations are licensed by the FCC Federal agencies are not allowed to use services allocated exclusively to the public sector for their business. This excludes the use of Amateur Radio and Citizens Band for CAP business. The regulation for all CAP Communications is CAPR 100-1 6 Assigned Call Signs Calls assigned to Individuals Call signs associated with Resources Aircraft Ground Vehicles Headquarters Tactical Call Signs 7 Aircraft Call Signs CAP corporate aircraft will use “CAP xxxx” (ex. CAP 2869 pronounced “CAP twenty-eight sixtynine”) at all times. Member-owned aircraft may also use the CAP call sign when on reimbursable missions. Flight Plans. The three-letter identifier “CAP” is used within the FAA computer system in place of the spoken word “CAP.” For this reason, “CAP_______” will be used in place of the aircraft tail number on flight plans. In the remarks section, the voice identifier “CAP________” must be included as well as the tail number of the aircraft. 8 CAP Radio Tactical Call Signs At Certain Special Activities functional call signs may be approved by the commander of the activity. These would include SAR/DRA missions Encampments Incident Command System (ICS) operations 9 ES Mission Communications Communicators are needed for nearly all ES missions in CAP, both SAR and DR. Scheduled radio check-in procedures Sending a position report Reporting a clue or a find Additional training is required to achieve a Radio Operator emergency services rating. 10 Out of Wing Operation Operation of mobile stations outside of the wing in which they are licensed is permitted. Operation on CAP frequencies in Canada and Mexico is prohibited. Special limitations apply within 75 miles of the Canadian border Check with the Director of Communications before operating radios in those areas 11 Communicating with Other Agencies Interagency operation on Non-CAP Frequencies CAP stations operating on non-CAP frequencies must have written authorization from the licensed agency. The radio must meet all requirements for use in that band under FCC or NTIA Some agencies are requiring that we use encryption A copy of the FCC license or the federal authorization must also be obtained. 12 Interagency Operations • CAP has Memorandums of Understanding (MOU) with a number of agencies On file at National Headquarters – – – – AF MARS, American Red Cross, Salvation Army, US Coast Guard Auxiliary On file at NH Wing Headquarters – NH Office of Emergency Management – NH National Guard – NH Fish and Game Frequencies for Interagency Operation are programmed into CAP Radios as appropriate – see Channel Plans 13 Concept of Operations CAP communications relies heavily on VHF-FM (very high frequency-frequency modulation) because VHF provides excellent, dependable, short-range communications. VHF is readily adaptable to ground and air mobile operations. We are developing digital voice and encryption options that may be used in this mode. CAP is also licensed to operate on specific HF (high frequency) bands, and utilizes Single sideband modulation (SSB). This affords long distance, even world-wide contacts – but is highly dependent on frequency and atmospheric conditions Aircraft radios operate on 118 to 137 MHz using Amplitude Modulation (AM). Radio certificates are issued through the FAA Standardized National Channelization and Programming Plan VHF-FM operations by CAP is governed by the Standardized National Channelization and Programming Plan that has been mandated in the CAPR 100-1. Compliance with this plan is mandatory for all corporate radios. All CAP assigned radio frequencies are designated “For Official Use Only” CAP Assigned Frequencies: FOUO For Official Use Only What FOUO isn’t What is FOUO A designation that there is sensitive information Used when frequency documentation is needed in the document Classification For use on every single document UNCLASSIFIED//FOR OFFICIAL USE ONLY Frequency information contained in this document is designated by the Department of Defense (DoD) as For Official Use Only (FOUO) and may not be released to anyone without the prior permission of NHQ and CAP-USAF. 16 Encryption Encrypted P25 transmissions of any kind are permitted ONLY if advance authorization is granted in writing by the NTC. Only approved keys provided by the NTC will be used when we encrypt. When working with other agencies, CAP must conform to that agency’s rules and procedures for using encryption. Radio Basics 18 Basics of Radio: Modulation To send a signal via radio, the radio modulates or superimposes voice on a radio frequency. AM, FM and SSB are just ways of sending voice information. CAP uses AM – amplitude modulation FM - frequency modulation, and SSB – single sideband along with some “P25” digital modes. Normally, we use: AM on Aircraft Bands SSB on HF FM on VHF and UHF 19 Frequency Modulation FM FM is used by CAP for VHF radios in vehicles, aircraft, walkie-talkies and base stations, for short range comms. The advantage is less static from ignition systems in vehicles, and excellent audio quality. FM also has a “capture effect” where the strongest station comes in over a weaker station. That is good and bad. CAP also uses FM in the ISR UHF radios. 20 Single Sideband SSB CAP uses SSB on HF SSB uses a very small bandwidth, compared to AM and FM modes Used for L O N G Distance Comms HF Operation is specialized, but very useful because it is very efficient Seek Special Training in HF, not included in this course. Ask your Comm. Officer 21 Amplitude Modulation AM • Used in aircraft radios to communicate with ATC, tower, other aircraft, airport operations, etc. • Worldwide standard for aircraft communication • Very old type of modulation first used in early development of radio • Tends to be noisy, easily interfered with. Allows lots of static and ignition noise. Bad feature. • Allows two stations to be heard over one another – i.e. no capture effect as with FM. Good feature. 22 Basics of Radio -Propagation Radio propagation is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the earth to another There are many ways that waves propagate in the atmosphere, including Ground Waves Sky Waves Tropospheric Scattering Line of Sight Propagation changes with frequency, time of day, atmospheric conditions and sun spot activity 23 Ground Wave Propagation Surface or Ground waves follow the curvature of the earth. Since the ground is not a perfect electrical conductor, ground waves are attenuated as they follow the earth’s surface. As frequency decreases, ground losses become lower VLF (very low frequency) and LF (low frequency) are mostly used for military communications, especially with ships and submarines. 24 Skywave Propagation Skywave propagation, or “skip”, results from refraction of radio waves in the ionosphere . These layers are directly affected by the sun, and its varying activity (sunspot cycle) determines the utility of these modes Forecasting of skywave modes is of considerable interest to amateur radio operators, commercial marine and aircraft communications, and shortwave broadcasters. A sudden ionospheric disturbance is often the result of solar flares. Flares can disrupt HF radio propagation. 25 Line-of-Sight Propagation Above HF (30 MHz) most propagation is line of sight – “if you can see it, you can hear it” In some cases, VHF signals can be received from reflections off of structures, terrain, etc. increasing range Ground plane reflection effects are an important factor in VHF line of sight propagation. 26 Effect of Antenna on Propagation Two important factors for antennas: 1. Directivity – function of antenna design 2. Placement – height above ground and attitude [horizontal or vertical] Antennas can be “omni-directional” [whips, vertical antennas] or “directional” [beams, requiring a rotator to point in a desired direction] Height above ground and attitude determines the “take-off” angle and thus impacts skip distance 27 Propagation - Summary Generally, you need not be overly concerned about propagation but should be aware of the limitations and advantages Hints… if you have trouble making contact: When operating VHF Move to higher ground or move your location Your handheld antenna should be held vertically When operating HF Change frequency Wire antennas close to the ground favor more local [e.g. NER] reception 28 Basics of Radio: Spectrum Wideband and Narrowband Radio spectrum is a national, albeit limited resource. Spectrum is governed by national policy and international agreements Most countries institute tight radio regulations for application of radio spectrum. Wideband Signal [used prior to 1 OCT 09] Narrowband Signal The amount of spectrum a particular signal occupies is a function of how the RF carrier frequency is modulated to transfer meaningful information Wideband on a Narrowband System Attempting to utilize a narrowband system with a wideband only radio is a potentially dangerous act. Plus, the Narrowband system will have extremely degraded performance. Doing this cause harmful interference and presents a serious safety situation to aircrews and other ground teams. Attempting to access this system will cause dangerous interference to not only the system you are attempting to access but the adjacent channel users. This should not be an issue if you use only CAP assigned radios CAP Radio Equipment and Operation 31 Frequency Bands used by CAP VHF – Very High Frequency - is only capable of line-of-site communications Buildings, mountains, leaves may interfere Higher an aircraft, the wider coverage 2500’ AGL has an effective radius of 50 Miles HF - High Frequency - is capable of world wide communication Strongly dependent on frequency, antenna, time of day 32 Types of radios EF Johnson Base Radio Mobile Radio Portable Motorola HF ALE ICOM Aircraft Radios Aircraft use two types: AM – used mostly by pilots to communicate with Air Traffic Control FM – used primarily by Mission Observer to communicate with Mission Base ISR 33 Air-band vs. CAP Radios What’s different Authorization Air-band Radios are licensed by the FCC through the FAA Pilots operate under a radio certificate tied to tail number CAP mission base has a blanket authorization to operate CAP Radios are licensed by the NTIA through the Air Force CAP Radio Stations must be under the direct supervision of a properly authorized Civil Air Patrol radio operator [i.e. have had BCUT as a minimum] Modulation Air-band: AM CAP: FM CAP radio transmissions may also be digital [P25] and encrypted Frequencies Air-band: open and disclosed to public CAP: designated “For Official Use Only” – Cannot be publically disclosed, should not say “on the air” Not available through the Freedom of Information Act 34 Model Specific Information These next few overview slides go into basic radio functions and operations for the: E.F. Johnson - 5300 Series Mobiles E.F. Johnson - 5100 Handhelds Technisonic - TDFM-136 FM Aircraft Radio Tait - T-2020 Mobiles (Analog Only 100 Channels Maximum, Mission Support Radio) NAT - NPX-136 Aircraft Radio (Analog Only 100 Channels Maximum, to be replaced with Technisonic TDFM-136) Manuals for most of these radios can be downloaded at https://ntc.cap.af.mil/comm/downloads.cfm Before operating any of these radios, seek specific instruction and read the manual! EF Johnson 5300 Series Mobile 1 - Power Switch / Volume The On /Off and Volume control knob is located on the left under display screen; push the knob for on/off, rotate for volume control. 2, 6 & 8 – non functional 4 - Zone / Channel Selector Knob Push in to alternate between Zones and channel selection. Rotate knob to scroll up 5 6 or down within the 3 channel / zone 2 bank. 5 – Squelch On/Off 7 – Scan 5+9 – hold and rotate 4 to change display angle 1 7 9 8 4 3 - The light above the Hi / Low power switch shows RED when you transmit, GREEN when the frequency is in use. EF Johnson 5100 Series Handheld 6 1 2 2 5 15 16 17 4 7 11 18 12 10 1 3 14 13 8 2 5 4 6 1 – Power On / Off and Volume 2 – Channel Selector 3 – Antenna Connection Port 4 – Keypad LOCK Button 5 – Not Programmed 6 – Transmit / Receive Light 7 – Speaker Mic. Connection 8 – PTT Button 9 - Speaker 10 – Microphone 11 – Not Programmed 12 – Not Programmed 13 – Not Programmed 14 – Not Programmed 15 – Not Programmed 16 – Not Programmed 17 – Light 18 – Up / Down Zones 9 Technisonic Model TDFM-136 Aircraft VHF FM Radio 1 – On / Off – Volume 2 – Channel Display 3 - Display Brighter 4 – Display Dimmer 5 – Channel Memory Scroll Down 6 – Channel Memory Scroll Up 7 – Enter 8 – Guard Select Switch 9 – Transmit Select for Main [upper display] or “Guard” [lower display] 2 1 3 5 9 8 7 6 4 Notes: • To select and view CAP channel designators, push tone pad Button “1/CHAN” NOT “ 7/FREQ.” • Audio for both upper and lower displayed channels will be heard simultaneously TAIT T-2020 Mobile 1 - POWER SWITCH and Volume Control 2 -Channel Selection, use keypad to the right of the display screen. Channels 1-16 are the common simplex channels and mobile repeaters ( to be assigned by CUL). For Channel 1 thru 16 selection (refer to channel chart) can be obtained by pushing a number button on the key pad AND the “enter” key. Example I want channel 10, press (1) and (zero) then (ENTER). For Ch 2, Press ( 2) and (enter) 3 - Channel Up 4 – Channel Down 5 – ENTER Button 1 2 5 3 4 National Airborne Technologies - NPX-138 1 5 2 4 1 - On / Off 2 – Channel Up / Down – (Toggle Left or Right) 3 – Squelch (Press In) 4 – Screen Brightness 5 - Always Leave on (ID) 3 Repeaters 41 Voice Operating Modes Simplex Simplex vs. Duplex Transmit and receive on the same frequency Buildings, terrain, altitude Duplex Transmit on one frequency and receive on another Single Frequency One Station at a Time R T Two Frequencies One Station at a Time Repeaters – Duplex mode Used to extend coverage and get over obstacles Repeater increases the range of mobile stations due to its high profile location 42 Inside the Repeater Repeater will turn on its transmitter only if the Tone Decoder hears a repeater specific tone Transmit Frequency Tone Repeater Receiver Tone Decoder The Tone Decoder “listens” for tones on the incoming signal Voice PTT Repeater Transmitter Receive Frequency “Mike Button” The Tone Decoder “presses” the Push To Talk (PTT) button to turn on the transmitter. 43 NER REPEATER LOCATIONS There are 64 NBFM Compliant Repeaters In the CAP North East Region Geographically Defined Restrictions on CAP VHF Frequencies* Because of the international agreements between Canada and the U.S., CAP must restrict its operations on certain CAP frequencies when within 75 nm miles of the international border. Operators entering those areas should make themselves aware of any restrictions in effect. Aircraft Operations are restricted to channels Air 1 or CAPGUARD ONLY and are limited to 3,000 ft AGL. We are permitted to operate up to 12.5KFT ONLY WITH USAF MISSION AUTHORIZATION * Note: Restrictions do not apply to other interagency communications such as Fish & Game, Forest Service Aircraft use of Repeaters Primary mode of operation should be simplex Only use the repeater if simplex is not possible. Within 75 miles of the Canadian border use of CAP VHF assigned frequencies prohibited above 3000 ft. AGL Note: Aircraft may use repeaters when on the ground 46 NH Wing Communications 47 NHWG VHF Communications NH Wing maintains 6 VHF repeaters at fixed locations plus two portable units Location of the fixed repeaters were chosen such that all squadrons have access to at least one Derry, Laconia, Ascutney, Lebanon, Littleton, Keene, In addition we have: “Portable” – repeater currently based in Portsmouth “Highbird” – utilized by aircraft assigned by the IC* VHF Frequencies [Channels] are programmed to show the repeater location [Tag], not the frequency * Requires an ACUT qualification 48 CAP VHF Radio Frequencies CAP Frequencies are FOUO Thus, CAP radios are programmed to display the specific designator for each programmed channel, for example Designator: CC-1 CC-2 AIR-1 AIR-2 CAPGUARD TAC-1 Function/Usage: Command/Control 1 Command/Control 2 Air/Ground 1 Air Ops 2 Calling Channel Tactical 1 49 CAPGUARD VHF A Guard channel is a common VHF channel monitored by all units to allow short-term contact, regardless of what other operational channels the station may be using. The channel designated “CAPGUARD” [FORMER LABEL WAS GUARD 1] is restricted to use ONLY for calling and then immediately moving to another channel. All CAP stations should maintain a constant listening watch on CAPGUARD to the maximum extent possible. NHWG VHF Channels / Zones EF Johnson RS5300 Radios operates on 16 Zones, each having a 16 Channel capability NHWG uses Zones 2, 3, 4, 6, and 7 Remaining zones are used nationally Use of Zones: Zone 2 – primary analog channels Zone 6 – duplicate of Zone 2 in a digital mode [more secure] Zone 3 – Northeast Region repeaters Zone 4 – NH Forestry Zone 7 - Coast Guard and Weather Channels Zones/Channels to be used for a specific mission will be assigned by the Incident Commander 51 NHWG VHF Channel Plan VHF Channel Plans vary with different radio models Zone 2 The following example is for : EF Johnson series RS5300 radios. Each “Zone” has 16 channels and the radio has 16 zones for a total of 256 channels!: Channel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CC1 CC2 AIR 1 AIR 2 CAP GUARD TAC 1 DERRY LACONIA ASCUTNEY LEBANON LITTLETON KEENE HIGH BIRD PORTABLE Fish and Game SANFORD Command and Control Command and Control Aircraft Channel Aircraft Channel Universal Calling Channel Ground Channel NHWG Repeater NHWG Repeater NHWG Repeater NHWG Repeater NHWG Repeater NHWG Repeater Airborne Relay Station NHWG Repeater Used for Liaison only Used for Fire Patrol Aircraft Radios do not use Zones – channels are numbered sequentially from 1 to ~256 You must become familiar with the Channel Plan in the radio you 52 are operating! Identifying Your Transmit Frequency VHF On your initial VHF transmission, use the Alpha designator for the channel/frequency you are using – ex. This is Abenaki 45 on TAC-1 DO NOT use channel numbers these may be different for different model radios DO NOT say frequencies these are FOUO DO NOT say “on VHF,” “on FM, “ or “on Foxtrot Mike” stations may be scanning or monitoring several different channels simultaneously 53 CAP HF Channel Plan All operations are simplex Frequencies are designated by two alpha characters First letter denotes primary usage A = National N = Northeast Region NE Region frequencies NA, NB and NC Frequencies can be found on-line Password protected, FOUO 54 HF - ALE Automatic Link Establishment Suite of HF frequencies Constant scanning, and sounding at regular intervals Other stations here the sounding, and remember which frequency it was heard on When an operator calls a station, the unit goes to the frequency it last heard the best quality signal for that station If it can’t establish a link, it will start searching the other frequencies in the suite Search and Rescue Aircraft Communications Air-Ground Communications on aircraft frequencies Aeronautical Search And Rescue Stations (SAR) Operate on two Aircraft Frequencies 122.9 MHz - TRAINING Only 123.1 MHz - ACTUAL Missions Only 121.5 MHZ – ELT and Emergency 121.75 MHZ – Training 56 Operating Procedures 57 PROWORDS Prowords are a special set of words used for clarity and brevity in communications. Some of the most commonly used prowords are: THIS IS ROGER OVER OUT WAIT SAY AGAIN CORRECTION WILCO AFFIRMATIVE Preface to your call sign Last transmission received OK I’m done, go ahead I’m done, bye I will be back in a few seconds Say that again Oops! I really meant to say ROGER and I will comply Yes 58 Phonetic Alphabet & Numbers A B C D E F G H I J K L M Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India Juliet Kilo Lima Mike N O P Q R S T U V W X Y Z November Oscar Papa Quebec Romeo Sierra Tango Uniform Victor Whiskey X-Ray Yankee Zulu Pronunciation of Numbers 1 WUN 2 TOO 3 TREE 4 FO-WER 5 FIFE 6 SIX 7 SEVEN 8 ATE 9 NINER 0 ZERO 59 I SPELL / FIGURES / INITIALS Use “I SPELL” for pronounceable words Example: LODI “I SPELL LODI LIMA OSCAR DELTA INDIA LODI” Use “FIGURE(S)” AND “INITIAL(S)” for non-words Example: N516F “INITIAL NOVEMBER FIGURES FIVE ONE SIX INTIAL FOXTROT” CORRECTIONS Use proword “CORRECTION” Example: “… Turn right at next corner … CORRECTION Turn left at next corner…” 60 SENDING NUMBERS Use Prowords “FIGURES”, “DECIMAL”, “TIME”, “INITIALS” Digit-by-Digit Not “Seven Fifty” 750 “FIGURES SEVEN FIVE ZERO” Niner Not Nine 849 “FIGURES EIGHT FOUR NINER” Decimal Point 14.5 “FIGURES ONE FOUR DECIMAL FIVE” Z Time 1635Z “TIME ONE SIX THREE FIVE ZULU” Initial And Figures E21 “INITIAL ECHO FIGURES TWO ONE” One Figure and Initial 3-A “FIGURE THREE DASH INITIAL ALPHA” 61 Calling Another Station To Establish Contact “Abenaki 11 THIS IS Abenaki 85 on Derry* OVER” Response “Abenaki 85 THIS IS Abenaki 11 OVER” If the station does not answer after a second call: STATION NOT HEARD, THIS IS Abenaki 85 OUT. This lets other stations know the frequency is available. No need to use call signs until communications are complete On Closing the Contact Abenaki 85 OUT” Always end a transmission with OVER or OUT NOT BOTH! *Say the Alpha designator for the channel you are using on initial call 62 Nobody Hears Me! Choose a Good Communications Site. High ground (the higher the antenna, the better). VHF is line of site. Stay away from interference generators High power lines Power Transformers Underground Cables Computers (even in the field) Other radios on different frequencies 63 Nobody Hears Me, STILL! Common Problems & Solutions Operator Failure! (This is the most common cause!) Make sure you are following normal procedures and briefings. Check the radio Is the radio turned on, correct channel, and volume up? Is the battery good? (Replace with a charged battery) Switch to a repeater, if available Ask for a relay (from aircraft if available) Move to higher ground or another location 64 Message Handling Message Traffic Categories of Traffic Formal Traffic Administrative Traffic Informal Traffic 66 Sending A Formal Message Originator writes message of CAPF 4 (Message Form) Operator sends the message over the appropriate net (local, wing, region, etc. - Whichever assures fastest delivery) When transmitting the message the operator speaks slowly and clearly so that the receiving station has time to write the message completely. When finished, ask if fills are needed and provide them. 67 CAP Radio Message Form Elements of CAP Form 4 Precedence Routine Priority DTG "TIME" or "DATE-TIME GROUP" FROM TO INFO TEXT OF MESSAGE 68 Message Body & Record Time Body or text of message Originator states the message clearly and briefly Radio Station Operator Information Fill in time of: receipt or transmission 69 Header Information Originator of Message (From) Name of the headquarters of the originator, a slant Bar (/). And the originator Office symbol, name and / or duty. Example: From: HQ NHWG /CC From: Amitrano Squadron /Capt. Dolittle, Safety Officer Addressee (TO) The unit and name and/or office symbol of the addressee. Example: To: HQ Northeast Region / CC To: All Units NHWG Copies To (Information) All additional units and/or personnel who the originator desires to receive a copy of the message. 70 Date-Time Group 16 0218Z APR 98 Date Time Month Year Date and Time in ZULU ZULU - Designates that time is UTC (Universal Coordinated Time) Z = EST + 5 hours Z = EDT + 4 hours 71 Draft Message Draft this message on some scrap paper first, then when you have stated it in a short, clear and concise fashion, transcribe it onto a CAP message form. It is Thursday, 2 June 1998 at 10:00 AM, Eastern Standard Time. You operate the Condor Composite Squadron Radio Station, Abenaki 141, in the New Hampshire Wing. A few minutes ago your squadron commander, Captain Smith, asked you to send a routine message to the Wing Director of Operations requesting he schedule orientation flights for 10 cadets of your squadron for one day on the weekend of 12/13 July if possible. 72 Passing the Message Later that same day (2 JUN) you participate in your Wing's VHF/FM Net at 7:00 PM (EDT). You check into the net and “with traffic” with the net control station, Abenaki 15, your Routine message for Abenaki 4. Abenaki 4 has also joined the net. Soon the Net Control Station (NCS) directs you to send your routine message to Abenaki 4. You do, and he accepts it. The NCS closes the net at 2329 Z (Log the net closed time.) After receiving the message completely and getting any required fills, the receiving operator acknowledges with "I acknowledge receipt of your 010340Z APR 04 (or whatever the DTG is), OVER". 73 Repetitions Before an operator can give a receipt for a message. he must have correctly received the complete message. When any portion is missed, the operator must ask for a “fill”. When words are missed or doubtful, repetitions will be requested by the receiving station(s) before receipting for the message as follows: the prowords SAY AGAIN in conjunction with "ALL BEFORE ______", "ALL AFTER ______", "ALL AFTER ______ and ALL BEFORE", "WORD BEFORE ______" or "WORD AFTER_" In complying with requests for repetition the transmitting station will identify the portion being repeated as follows: "I SAY AGAIN ALL BEFORE ______", "I SAY AGAIN ALL AFTER ______", "I SAY AGAIN ALL AFTER and ALL BEFORE ______", etc. 74 Communication Nets Communication Nets • Purpose of Nets – Pass Traffic (information) from Wing or Higher Headquarters to subordinate units – Pass Traffic (information) from subordinate units to Wing or Higher Headquarters • Categories of Traffic – Formal – Informal – Administrative • A Formal Net is established to control the flow of traffic on a single radio channel. There are two primary net types in CAP – Directed Nets – Free Nets 76 Net Control Station (NCS) Controls and directs the flow of radio traffic within their Net Is primarily responsible for net discipline. 77 NCS script Each wing has its own Net script Roll call a list of call signs by Group, in some wings 78 Radio Net Operation • A Formal Net is established to control the flow of traffic on a single radio channel • The Net Control Station (NCS) maintains net discipline by controlling who is talking • The NCS must be contacted first for permission to contact another station • Sample Net Check-in (Abenaki 14 is the NCS): – “Abenaki 14, THIS IS Abenaki 404 with no traffic, over” 79 Formal Nets Directed Nets In this net, stations obtain permission from the net control station (NCS) prior to communicating with other stations. The net is often started with a roll call. The purpose of the roll call is to determine which members are monitoring the Net. Each station identifies itself, as called, with its CAP assigned tactical call sign Following roll call, transmission of traffic occurs. Free Net Net Control Station (NCS) authorizes member stations to transmit traffic to other stations in the net without obtaining prior permission from the net control station. Free net operation does not relieve the control station of the responsibility for maintaining circuit discipline 80 Radio Nets - Contacting Another Station Abenaki 14 NCS 1 Abenaki 401 2 3 Abenaki 404 • All transmissions must receive permission from the Net Control Station (NCS) 1 - “Abenaki 14, THIS IS Abenaki 401 with traffic for Abenaki 404 OVER” 2 - “Abenaki 401, Contact Abenaki 404 with your traffic, OUT” 3 - “Abenaki 404, THIS IS Abenaki 401, OVER” 81 Break-in Procedures Only emergency or urgent traffic justifies break-in procedures. A station wishing to break in will transmit at the pause with his/her station call sign. The word "Break" is not used as a breakin proword. This proword is used solely to separate message text from other portions of the message. 82 Distress and Emergency Signals MAYDAY PAN PAN SECURITE Distress Urgency Safety } Supersedes all Priority or Routine Traffic Operator Responsibility #1 #2 #3 LISTEN Be Prepared to Assist Do NOT Transmit Unless Your Services are Needed 83 PROHIBITED Operating Practices Violation of Radio Silence Personal Conversation Transmitting in a Net without permission of NCS Lack of identifying call sign Excessive tuning and testing Use of Amateur Radio or Citizens Band frequencies for CAP business 84 Safety Concerns Route wires and cables out of traffic areas Properly ground all equipment - Make sure it is the path of least resistance. If you see a 110VAC plug with the 3rd prong missing, get the cord replaced before using the equipment. Lightning precautions Have lightning arrestors on all antennas During electrical storm, disconnect antenna from equipment and connect to ground Locate antenna away from electrical wires and people. If you touch a HF antenna when someone is transmitting, you will get RF burns Make sure your antennas are secure On a roof, make sure the roof has limited access, and that no one can accidently trip or run into it On a tower – make sure only authorized people can access the tower (commercial sites are pretty good about that, but what about your home?) 85 Mission Skills Sending a Position Report Steps to regain communications Reporting a find Reporting a Clue Employing Appropriate Frequencies Conducting Scheduled Check-ins Choosing a good Communications Site Knowledge of Plans and Procedures Message Handling Procedures Communications Safety Procedures 86 Communications Awards, Activities and Programs •The Communicator Badge •The Senior Communicator Badge •The Master Communicator Badge See CAPR 100-1 for more details Cadet Eligibility for Communicator Badge Cadets are encouraged to pursue each level of the communicator badges. To do so, cadets must meet all of the training requirements listed in the appropriate section of CAPP 214 with the exception of the portions specifically intended for the senior member training program. 88 Questions 89