On Mar 20, 2012, at 4:18 AM, Peter Monta wrote: > John, if you're reading this, would your receiver be capable of > recording with wider RF bandwidth? Your recordings made during the > test period have a bandwidth of about 30 Hz; can it go any wider? I > think your web page says you're using an active whip antenna, which is > good because the resonant loops would impose their own bandwidth > limit. If you could eliminate the narrowband receiver and record the > antenna signal directly with the 192 ksa/s ADC, that would be ideal.
So the goal here is to measure the bandwidth of their antenna system? (or what they limit the transmitted bandwidth to be to make sure no power is wasted by the bandwidth limitations of the antenna). The first IF of the 3586B is 50 MHz and is filtered to 10 kHz BW before mixing to 15.625 kHz. So recording the second IF is one possibility. The other as you say is to connect the active antenna directly to the sound card, crank up the input gain and hope for the best. No reason I couldn't playback the recording and run it through the SA and 3586 again to see what it looks like. Let me work on that. _______________________________________________ time-nuts mailing list -- firstname.lastname@example.org To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.