[TVARC] FT8 QRN

[Frank M]

Glad you got it resolved. Will add that to my file of ‘things I did to mess up my station”.  The list is already long but I made room for more!!

Frank KA1AF 

Sent from my iPhone

> On Oct 31, 2021, at 4:05 PM, K2PS Pete Stafford <psk2ps at gmail.com> wrote:
> 
> 
> Brilliant!!!!  Not sure how it got turned on, but yes indeed, the notch filter got set.
>  
> Thanks so much, Al!
>  
> 73, Pete, K2PS
>  
> From: ALLAN MATTHEWS [mailto:almatthews at me.com] 
> Sent: Sunday, October 31, 2021 4:02 PM
> To: K2PS Pete Stafford
> Subject: Re: [TVARC] FT8 QRN
>  
> Notch filter?
> 
> 
> On Oct 31, 2021, at 4:01 PM, ALLAN MATTHEWS <almatthews at me.com> wrote:
> 
> 
> That’s interesting Pete. Does the waterfall on the rig show the same anomaly? 
> 
> 
> On Oct 31, 2021, at 11:12 AM, K2PS Pete Stafford <psk2ps at gmail.com> wrote:
> 
> 
> Thanks, guys.  A new important detail: seems that those bars don’t move when the frequency changes, so that would seem to rule out external causes.  Listening (with real ears!) on SSB, I don’t detect anything unusual.   I could live with the visual distortion I see for signals within the offending “bars,” but I see NO signals between about 1450 and 1650 FT8 offsets – on any band, as you can see below on a packed 15M band.  The bars themselves run from about 900-1300, and 1800-2200.  All WSJT modes show the same thing.  I’ve rebooted everything, BTW, and no change.
>  
> <image001.png>
>  
> 73, Pete, K2PS
>  
> From: Frank M [mailto:phrankxm at gmail.com] 
> Sent: Sunday, October 31, 2021 9:50 AM
> To: K2PS Pete Stafford
> Cc: villages reflector
> Subject: Re: [TVARC] FT8 QRN
>  
> Pete, I don’t see any of the QRN that you have there. 
> I recall having a similar problem (but not exactly). Traced it to a faulty street light near my house.
> Good luck getting to the issue.
>  
> Frank KA1AF 
> 
> 
> 
> On Oct 31, 2021, at 9:33 AM, K2PS Pete Stafford <psk2ps at gmail.com> wrote:
>  
> Just this morning for the first time, I noticed some strange QRN on the WSJT waterfall.  The same thing is seen on all bands, both antennas.  I show the 10M waterfall here, with little activity on the band:
>  
> <image001.png>
>  
> Here’s 20M and a bunch of signals:
>  
> <image002.png>
>  
> Note also, the nearly total lack of signals in between the noise bands.
>  
> Could this be an artifact of the reported solar flare?  Or am I seeing some new RFI issue?
>  
> 73, Pete, K2PS
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