I'm wondering if diversity receive might help with RTTY decoding, to reduce deep fades.

I shorted together the left and right channels from the Line Out jack on the back of the K3, and fed them to right input of computer sound card. (The left input of sound card is connected to a TS-850, for SO2R.)

I was concerned that bridging the two audio channels in this way would cause the diversity separation in the headphones to be lost (e.g., when operating CW, and having the bridged audio line for RTTY decoding still connected). But the headphones seem to still work as before, with separate channels audible, L-R. I'm guessing there's a buffer amplifier that feeds the rear panel line out jack, so that shorting those channels doesn't effectively short the other audio L/R outputs (e.g., headphones).

Does anyone know for sure?  'Anyone see a downside to this approach?

(I recognize I might be trading one problem for another: instead of QSB in one channel, I now might sometimes have the L- and R-channels equal in amplitude and out of phase, leading to a nil combined signal for the decoder at odd intervals. But that seems a low probability.)

Tnx,

/Bill, K2PO

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Reply via email to