> > I have a TVRX (and a basic RX/TX pair) on my personal unit; the PARI unit is > outfitted with two basic RX and two basic TX. The TVRX can do 70MHz direct; > I might try that at some point. There's a significant electrical storm here > now, so I have everything disconnected.... :-)
Actually, you can do 70 MHz directly into the BasicRX. Just set everything like you are using a 6 MHz IF (70-64=6). No need to use the ICOM R8500 at all. > As to the DBSRX, I mentioned to Charles Matt's statement of the 'less than > 8dB > noise figure' and Charles wasn't real impressed; need pretty good > amplification ahead of it to get a useful noise temp. We have a few front > ends with less than 3 dB NF here, and we will soon have better. No cryo > here, yet. The DBSRX is not intended to be used for RA applications without an LNA in front of it. Besides, even if it had a 0 dB NF, you would still have to run the coax from your feed all the way to it, which could be 10+ dB of loss. The DBSRX is even has a connector for providing LNA bias over the coax. Matt _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
