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Interference on 20 meters NON-WIDE

Bob N7ZO
Bob N7ZO Member ✭✭
edited March 2017 in SmartSDR for Windows
I just received my 6700 yesterday and am having a lot of fun with it.  I am overall very impressed with its performance, but I encountered an oddity.  With just one panadapter open on 20 meters, ANT 1, 0dB gain, I am getting interference (obviously modulated) across the band when narrow.  But the interference goes away when I widen the panadapter up enough to get the WIDE indication (and hear a relay click).  I believe this interference may come from some strong local FM or TV broadcasts because if I add an external 30MHz lowpass filter to the antenna path, the interference goes away. (My antenna is an 80m horizontal loop.)  Is it possible the anti-aliasing filter is getting switched out when the bandpass filter is switched in or something like this?  I'll upload some pictures if this is an unknown problem.

73, Bob


  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    Bob - I have converted this topic to a support HelpDesk ticket (http://helpdesk.flexradio.com) for expedited issue resolution.  If anyone else is experiencing an issue similar to this one, please submit a HelpDesk support ticket for issue resolution.

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