Re: Weird drift
By: Phigan to Jared on Sat Aug 13 2022 13:05:05

Looks similar to this https://swling

I'm on a C= at the moment so will have to take a look at the link later. The issue seems to also happen on 2meter band but in reverse.. the zigzag is going in the other direction.

What does look interesting to me is that it's channelised and not a general sweep.

de VK2WAY

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■ Synchronet ■ It's just a jump to the left (and a step the right)...

Re: Weird drift
By: Belly to Phigan on Sat Aug 13 2022 16:08:16

Definitely not near the frequencies you're talking about, though. My first thought was that perhaps you had some rogue device nearby which was
designed to use the ITU Region 1 ISM band, but that band is located from 433.05 to 434.79 MHz, instead of where you're seeing the signal.

That's a high likelyhood too actually looking where it is.

I had an ISM band weatherstation that was splatting a line of noise across everything from around 30Mhz to 500Mhz every 30 seconds; I soon killed that once I got licensed and noticed it.

It's been replaced with a similar one but much cleaner signal. Opening up the old one the internal coil had totally coroded and the PCB was a mess. Not surprising it was making so much noise.

de VK2WAY

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■ Synchronet ■ It's just a jump to the left (and a step the right)...