But..does it track with the tuning of the R-4C? Why would ya want to tune 2 RX's at the same time? 73, Lee
The preselector is the limiting factor as Garey pointed out. The problem is worse on the lower bands, especially 160m. You would need to tap ahead of the preselector -- essentially at the antenna terminal. So, the antenna feed must be split with a simple 50/50 power divider, one side to the R-4, the other to the SDR receiver. This is the same manner used by folks who use up-converting transceivers like the Ten Tec Omni 7, Icom 7700, 7800, etc. Only, the sync issue between the R-4 and SDR receiver would be very difficult to solve since there's no computer interface on the R-4 to allow for tracking to the SDR receiver.
I cannot see a way to effectively use an SDR receiver as a panadapter with a Drake 4 or 7-line receiver.
Paul, W9AC _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
