QRPGuys DSB Transceiver Build Pt 5

Final video in the series, LET'S GET THIS BABY ON THE AIR!

Part 4 here: https://forums.qrz.com/index.php?threads/qrpguys-dsb-transceiver-build-pt-4.700261/

Thanks for watching!

 

I have a question, It seems to me that DSB would violate the narrow bandwidth of the CW-Data portions and would cause interference to other modes on the opposite side band. IE using on JS8 could cause TXing in the FT8 section of the 40 meter band.

Seems they would have to be used in the voice sections?
Or am I wrong here and DSB wont cause such interference?

 

interesting build presentation. audio vedio clarity and contents good... watched all 5 vedios.

 

You are absolutely right, some of this is "gentleman's agreement" and some of this is data portion of the band. For me, the purpose of this kit was a fun build. I won't be attempting "Worked all zones" with it. QRPGuys was trying to make a fun kit at a fun kit price, so the compromise was the DSB.

I think with transmitted "silence" in the other sideband and the natural intermod combined with the robustness of the FT8 protocol lessens the impact.

But I'm just a random dude on youtube who likes buildings kits! ;-)

Thanks for watching.

 

Thanks!