Skip to main content

Anyone know what this could be? It's always dominating 6m FT8. :(

#AmateurRadio #HamRadio


#hamradio #amateurradio

reshared this

in reply to Neil E. Hodges

Bernhard
Bernhard
• •
looks like ofdm with pilot and sounds like data, but don't know what exactly :)

Neil E. Hodges reshared this.

in reply to Neil E. Hodges

Comrade Weez
Comrade Weez
• •
freq?
in reply to Neil E. Hodges

Comrade Weez
Comrade Weez
• •
hmm. It could be a spur from the local oscillator of a TV set or RF noise from a misbehaving switchmode power supply.
in reply to Comrade Weez

Neil E. Hodges
Neil E. Hodges
•
But would they have a strong center frequency with sidebands like this?
in reply to Neil E. Hodges

Comrade Weez
Comrade Weez
• •
It might be because we're looking at a very narrow slice but I'm not sure you're seeing sidebands. Can you see this sig with a different rcvr eg an SDR?

Neil E. Hodges reshared this.

in reply to Comrade Weez

Neil E. Hodges
Neil E. Hodges
•

Wish I had an SDR like that to play with. :P

The center of the band looks like it's about 600 Hz wide (the full width of the plot is 3 kHz).

in reply to Neil E. Hodges

Christoph Berg
Christoph Berg
• •
Stupid question, it's not just your rig set to a narrow filter with 500 Hz bandwidth?
in reply to Christoph Berg

Neil E. Hodges
Neil E. Hodges
•
You are 100% right! I mistakenly had my radio's filter pass band set to 500 Hz. Setting it to the recommended 3 kHz for FT8 both fixed that and improved my FT8 experience. :P
⇧