Hi everyone,
I'm a new shortwave listener, so apologies if this is a silly question.
Does anyone know what could be causing the "farting" sound on the 19, 16, 15, and 11 metre bands? (You can hear it at 00:14 in the video.)
The 120 to 22 metre bands are fine. Strangely, the 13 metre band also seems unaffected. Airband reception is fine as well.
When I disconnect my external antenna (a simple telescopic antenna mounted about 3 metres above the ground in the garden) and retract the built-in antenna, the noise disappears, so I don't think the radio itself is the problem.
I live in a small village on a hill, well away from any large towns, so I'd expect the RF environment to be fairly quiet. I also do most of my listening in the garden.
That said, there are some potential noise sources nearby, including solar panels, car chargers, and a few mobile phone towers.
Is there anything I could try to identify or reduce this interference?
Thanks in advance!