[Milsurplus] [MRCA] Items for sale

[mstangelo at comcast.net]

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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