[Milsurplus] [MRCA] Items for sale

[Peter Gottlieb]

Find an avionics shop that doesn't throw away ALL the radios they take 
out for upgrade.  It took me a while but eventually I found a place 
which had dozens and the owner let me take several.  Make sure you let 
them know you only want them for listening and will NEVER put them back 
in an aircraft.  Ask nicely and they will give you the pinout.  Most 
slide into trays which you usually can't get since the replacement 
radios use the existing tray.  You can easily modify BNC connectors to 
mate with the blind-mate RF connectors and the radios output line level 
audio.  If you can't get the pinouts note what I said about replacement 
radios using compatible pinouts and go to the sites of companies which 
make replacement radios and you will find several which have the pinouts 
on the web.

Peter


mstangelo at comcast.net wrote:
> Michael,
>
> I've seen surplus single channel VHF and UHF aeronautical receivers for sale but they take up lots of rack space and it sounds like space is at a premium at your new pad.
>
> You could go the solid state route an build receivers for each frequency and fed a common audio output.
>
> Too bad you don't care for scanners, The new ones are cheap these days and one can find used ones for pennies. We have electronics recycling in our town. Most of trash is television sets and computers but once in a while I find usable goodies such as old scanners. If you don't like the scanning function I'd get a scanner for each frequency. 
>
> Mike N2MS 
>
> ----- Original Message -----
> From: Michael <wh7hg.hi at gmail.com>
> To: milsurplus at mailman.qth.net, mrca at mailman.qth.net
> Sent: Sun, 22 Aug 2010 23:29:28 -0000 (UTC)
> Subject: Re: [Milsurplus] [MRCA] Items for sale
>
> -----Original Message-----
> From: mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net] On
> Behalf Of Ray Fantini
>   
>> ARC-73 Collins VHF AM 116.00 to 149.95 in 50 kHz steps transceiver.
>>     
> Receiver, 
>   
>> transmitter, control head, rack, shock mounts and all cables. Also have a
>>     
> junk transmitter for 
>   
>> parts. Transmitter is not keying, do not know if it's wiring problem or in
>>     
> transmitter. 
>   
>> Receives and all other functions like frequency changes are ok.
>>     
> $175.00
>
> Much as I would love to have this, I have to pass ... [very loud, long and
> detailed expletive deleted in accordance with list rules]!  
>
> However, I have an amusing problem sort of indirectly related to this.  My
> new digs are at the old Barber's Point NAS, now called Kalaeloa Airport
> (PHJR, for those into identifiers), and I live directly under the western
> approach to HNL (PHNL)/Hickam AFB which means lots of radio traffic is going
> on that I'm missing.  There are at least four VHF frequencies of interest,
> all having UHF counterparts, two of which I should be able to hear both
> sides of the conversations and the other two only the aircraft side.  Since
> I used to fly, I can pretty much surmise the ground side of the exchanges so
> it's not a real big deal.  
>
> The problem comes in two parts which need a common solution.  First, I want
> to be able to monitor all the frequencies but don’t have space for eight
> receivers.  (I could do the VHF side using A.R.C. equipment on hand but that
> goes back to space.)  With that, I detest scanners.  (I'm used to listening
> to multiple receivers simultaneously from an "earlier life" so that's not an
> issue.)  
>
> What I've been thinking about is multiple front ends feeding a couple of IF
> strips, one each for VHF & UHF, which would eventually go to a common audio
> amp then to a speaker or headphones.  Each front end would have its own gain
> control plus the audio amp would have one of its own.  
>
> Somewhere in all that is a fatal flaw but I don't see it.  Anyone?
>
> Best regards,
>
> Michael, WH7HG BL01xh
> http://www.nationalmssociety.org/chapters/NTH/index.aspx 
> http://wh7hg.blogspot.com/ 
> http://kludges-other-blog.blogspot.com 
> Hiki Nô! 
>
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