Noise on 27.395 Hz

[CT4013]

Whilst trying to listen on last nights net (26th Feb) I had noise bars on the scope at 700Hz spacing.
Just after 10pm the bars slowly moved & I could actually hear a couple of people, it was still noisy though.
About 11pm the noise bars drifted back up & I gave up.
I hope it's not the solar panels that were installed last week, so I will listen on the frequency over the coming nights!

[Razz229]

Take a look a these. . . . . all have interference, but none of them move up or down the band

[CT4013]

Thanks Ray, you have certainly done your homework.
I will go through them after the 10M Test Net.

ps. I tuned to 27.395MHz last night & there was no sign of the dreaded bars.

[CT4013]

I don't see the diagonal lines on the video waterfalls that I had so undecided.
I checked 27.395MHz again yesterday evening and no noise again!
My plan is to check each evening until/if it happens again. It has to be someone near me as I always have the same power bricks/supplies on whenever I'm on radio, Also 'Station Manager' always has the same for the LED lighting etc.

[CT4013]

This still has me puzzled, after my post I had no noise any evening until Wed 4th (5 days) when it returned from 18 to 30MHz!
Yesterday listening on the SSB net it was clear with only S1-S2 all evening.

My thinking is that if the solar panels were the cause it would be the same every evening, or am I wrong?

[Razz229]

This still has me puzzled, after my post I had no noise any evening until Wed 4th (5 days) when it returned from 18 to 30MHz!
Yesterday listening on the SSB net it was clear with only S1-S2 all evening.

My thinking is that if the solar panels were the cause it would be the same every evening, or am I wrong?

This is the worse kind of interference, as it comes and go's at irregular intervals.

Does it cover all of the HF band or just different portions of it?

[CT4013]

Does it cover all of the HF band or just different portions of it?

It's all across all of 5 bands Ray, 10/11/12/15 & 17M.

Let's hope it doesn't affect too many Thursdays, not too wooried about the rest of the week as I'm usually between 80M & 20M then.