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Author Topic: TX noise figures from today's HF transceivers?  (Read 873 times)

Offline ThaDood

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TX noise figures from today's HF transceivers?
« on: April 19, 2021, 1947 UTC »
Interesting, but I guess, not surprising.     https://www.dj0ip.de/transceivers/tx-noise/  Hmmmmm... Hopefully, using a tuner helps this problem.
I was asked if I liked the 80's pop band The Go-Go's, and I answered that I listened to them, like many other Top 40 pop bands of the time, so Eh. However, I did mention that I did kind of feel sorry for them, since I thought that the band members couldn't have sex. I was then asked, "What do you mean?" My reply was, "Duh... They sing about it themselves, their lips are sealed!".

Offline redhat

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Re: TX noise figures from today's HF transceivers?
« Reply #1 on: April 19, 2021, 2322 UTC »
The only splatter I hear when surfing the bands are those running dirty linear amplifiers.  It also seems to follow that there is little "intelligence" modulated on these dirty signals.

« Last Edit: April 19, 2021, 2346 UTC by redhat »
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Offline BoomboxDX

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Re: TX noise figures from today's HF transceivers?
« Reply #2 on: May 03, 2021, 1903 UTC »
When I was last monitoring the ham bands' SSB sections (I stopped about four years ago), I don't know if I was encountering 'dirty' transmitters but yeah, a lot of the guys push the power when they don't really need to -- especially during contests. CW not so much...

On some of the ham forums, there have been suspicions mentioned of guys using more power than legal during such contests. Whether that's true or not, I have no way of knowing, but ever since I've monitored the ham bands, I've encountered lots of ham stations that splatter 10 khz to either side of a target frequency. I just counted it up to my receivers.

And, ironically, if another ham gets on the channel and complains about a splatter master, the inevitable retort is "get a better radio, old man!"

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