[Premium-Rx] FW: Cubic R-3040 ?

[spencer bahner]

I would suggest it is actually a DF receiver (common LO feeding the 
individual RF/IFs). This allows external circuitry to be used to determine 
the differential between direction- time difference or however the 'spooks' 
do it). Does it have five RF paths or just IF? Multiple IF paths alone 
usually imply some flavor of ISB-like operation...


>From: "A. and T. MacDonald" <calvinf15 at earthlink.net>
>To: <premium-rx at ml.skirrow.org>
>Subject: [Premium-Rx] FW: Cubic R-3040 ?
>Date: Sun, 2 Apr 2006 11:52:56 -0400
>
>Hi Folks,
>
>I just purchased a Cubic R-3040 on ebay.  Here's a link if you're
>curious: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem
><http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7603121526&rd=1&sspa
>gename=STRK%3AMEWN%3AIT&rd=1>
>&item=7603121526&rd=1&sspagename=STRK%3AMEWN%3AIT&rd=1 (item number
>7603121526)
>
>I suspect that it is a specialized HF receiver with multiple
>simultaneous IFs (for the FAA?), and I bought it as a front-end for some
>DSP radio experiments I am running.  I haven't received it yet, but am
>looking for anybody who's had experience with one of these.  I found a
>reference to the R-3050 in Fred's bible, but not the R-3040.  I suspect
>that I might be similar to a 3030 perhaps with some parallel IF strips
>on the back of the 40.455 first IF?  Not really sure what it's intended
>application was.  I plan to digitize the IFs for introduction into some
>DSP downcoversion software I am writing.  If there's any real-estate
>inside, I might just put a TI or Analog Devices DSP board in for an
>integrated demodulator option. Thanks for any leads .   Educated guesses
>welcome!
>
>adam, N1GX


>_______________________________________________
>
>Premium-Rx Mailing List
>To Post: premium-rx at ml.skirrow.org
>For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx
>Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/