It seems like often Jim and I disagree on things, but this time I'm in total
agreement with him.
About a year after my speech processor paper was published in Ham Radio Magazine
(http://k6mhe.com/n7ws/S_PROC.pdf) I worked a guy in the PNW, on ten meters. He
was running a homebrew 2 watt radio and using a copy of my processor. He was
delighted with it and the fact that we were talking. Frankly, it was the first
time I'd heard one from the other end. So he wanted to experiment. He was
about S2 but perfectly Q5. When he turned the processor off he was gone. Not a
peep. It was amazing. Frankly, I was impressed. I knew the theory but to see
it in action was eyeopening.
Wes N7WS
On 8/28/2019 2:18 PM, Jim Brown wrote:
On 8/28/2019 1:46 PM, Michael Walker wrote:
I am not a big fan of compression and in today's world there really is no
requirement to have it on. Ask anyone who has been DXPedition end of a
DXPedition and they will tell you to turn it off as it is actually harder
to understand you.
This is NOT true if compression is well adjusted -- 10 dB of well adjusted
compression increases talk power by 10 dB, and setting TXEQ to remove speech
content below 400 Hz helps by another 3 dB. It is the abuse of compression
that reduces intelligibility. Compression has been universally used in all
broadcasting modes for at least 60 years, and for at least 40 years, for gain
reductions of 30 dB or more! The joke among FM broadcast engineers in the '70s
was "If the meter in the modulation monitor moves, the program director will
say we're not loud enough!"
73, Jim K9YC
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
