From: ronk@cascade.ens.tek.com (Ron Kirkpatrick;627-6707;50-454;LP=A;)
Newsgroups: rec.radio.amateur.misc
Subject: Re: CAP Offset
Date: 27 Aug 92 17:42:58 GMT
Reply-To: Ron.C.Kirkpatrick@tek.com
Organization: Tektronix, Inc.,  Beaverton, OR

In article <9208271510.AA03694@ucsd.edu>, LWRCLMR@strathost.stratcom.af.mil (LWRCLMR) writes:
|> 
|>        Civil  Air  Patrol  normally  uses  148.150  MHz  for  VHF  local 
|>        communications.   In  some areas, this is a repeater output.  The 
|>        standard input is 143.900.  Usually, the repeaters are *supposed* 
|>        to  have  a  real  short  squelch  tail  to allow operations with 
|>        simplex stations, especially aircraft, which are not supposed  to 
|>        use    the    repeater.    The   alternate   repeater   pair   is 
|>        143.750/149.925.  149.925 is also used quite a bit for packet.
                  ^^^^^^^
No, no, no! A radio message from National Headquarters last
November/December stated that 149.925 was for packet use ONLY and all
repeaters were to be moved off that frequecy no later than 31 December 1991.
The correct pair is 143.750/148.125. At the same time the maximum effective
radiated power for packet operations was lowered to 30 watts.

|>        As  portable/mobile  VHF-AM  equipment was expensive, many places 
|>        have found it  easier  and  cheaper  to  install  VHF-FM  in  the 
|>        aircraft.

Also, CAP is allowed on the two VHF-AM aircraft frequencies as a guest. In
otherwords, on a Secondary/Shared, Non-Interference Basis. They are not
'CAP' frequencies.

|>        CAP   usually   uses   amateur   equipment,   but   have  several 
|>        restrictions.  The equipment must be  crystal  controlled.  (Ever 
|>        try  to  find  a crystal controlled HF rig any more?)  Some areas 
|>        allow certain synthesized rigs on HF, depending on whether it  is 
|>        a  crystal  locked  PLl  or the display reads a certain number of 
|>        digits.  Some CAP units  even  require  annual  certification  of 
|>        equipment by an FCC licensed technician!

To  the best of my knowledge, most currently manufactured radios are crystal
controled. There may be only one crystal, but it is still crystal controled
as opposed to a VFO (Variable Frequency Oscolator (where's that spell checker
when you wantit?)) radio.

If your unit does not require annual certification, have your commander
reread the CAPM 100-1. Annual recertification is REQUIRED. The HF and VHF-FM
frequencies we are on are Military frequencies and They have told us what
they will tolorate.

|>        CAP is in need of good communicators.  Track down your local unit 
|>        and get involved.  It can be a lot of fun as well as  a  valuable 
|>        public service.
|> 
|>        If  you just want more info, contact CAP National Headquarters at 
|>        Maxwell AFB, Alabama.  If you can get in touch with the bookstore 
|>        there,  order CAP Manual 100-1.   That will tell you all you want 
|>        to know about CAP communications.

Also check with the local airports and Fixed Base Operators (FBO's). We're
not just a flying club!

-- 
Ron Kirkpatrick
Tektronix, Inc
News Administrator
503-627-6707

CAP: Oregon Wing, BeaverFox 151
MARS: AFA5HZ
Amateur: N7RFA