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200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 2:09 pm
by M0SJW
I have a few radios with IF taps fitted - FT-857, FT-847 etc. I run external radio with various SDRs. I really like the setup.

One setting which I find a little frustrating is the bandwidth selection within external radio. I have it set to the apparent maximum - 200kHz, but would like access to higher bandwidths. I appreciate some users will be limited by filtering within the radio etc. but for those that have more bandwidth available, and high resolution (or multiple) displays, it would be great to be able to select higher bandwidths.

Might this be possible please?

73,

Sam M0SJW

Re: 200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 2:57 pm
by M0SJW
I have found a 'dirty' solution while playing around...

Modifying the registry keys in Computer\HKEY_CURRENT_USER\SOFTWARE\SDR-RADIO.com (V3)\ExternalRadio seems to work

Re: 200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 3:53 pm
by Simon G4ELI
Ah - good to know, I'll increase this to 500kHz, make a kit & invite you to the test team...

Re: 200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 4:08 pm
by M0SJW
Thank you Simon. Really appreciate the fast response and cleaner solution.

73, Sam

Re: 200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 4:09 pm
by Simon G4ELI
M0SJW wrote: Thu Jul 14, 2022 4:08 pm Thank you Simon. Really appreciate the fast response and cleaner solution.

73, Sam
This 200kHz is old - from the days of the SDR-IQ etc.

Re: 200kHz bandwidth limitation

Posted: Thu Jul 14, 2022 4:23 pm
by Simon G4ELI

Re: 200kHz bandwidth limitation

Posted: Fri Jul 15, 2022 5:26 pm
by M0SJW
Thanks, seems to work fine.

I'll add some screenshots later.

73, Sam M0SJW

Re: 200kHz bandwidth limitation

Posted: Fri Jul 15, 2022 6:47 pm
by Simon G4ELI
M0SJW wrote: Fri Jul 15, 2022 5:26 pm Thanks, seems to work fine.

I'll add some screenshots later.

73, Sam M0SJW
Ta!