Eric Blossom wrote: > On Sun, Dec 31, 2006 at 01:42:31PM -0500, Eric A. Cottrell wrote: >> Hello, >> >> Thanks to both of you for the information. I got the RX PGA gain up all >> the way. I rewound the isolation transformer to be 1:1 with 14 turns. >> I still have to turn off AGC for good signal levels but I got 20 to 30 >> dB SNR on RCI at noon today. >> >> Doing some simple tests with the PSD display in DReam I can not see the >> noise floor increase when the receiver connected. The FFT from the >> USRP data also shows no increase so an amplifier is needed. What >> amplifier do you use on the AR8600? > > I used a Ramsey PR2 broadband preamp (it's probably overkill, but it's > what I had on hand) > http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=PR2 > > Eric > Hello,
Yeah, it looks like exactly what I need. Maybe I will also try hooking an antenna up to it and fry my LFRX board from the local AM radio station down the street. :) There is a local store that sells Ramsey Kits so I may look there Tuesday night. I seem to remember AMSAT-NA was giving out MMICs one year at the symposium. I should see if I have any. The problem is finding them as my "for a rainy day" cache is huge. Is the PR2 battery powered or does it have a DC In? I hope it is 12 volts. 73 Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio