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Don't see that on the two on line plots or at this
qth, must be a image.
That's a problem with single conversion rx's when
they are working near the IF frequency or a bit of mains hum on the local
oscillator that can give the same problem , usually a heater cathode leak in the
tube or a dry electrolyitic on the screen feed, might be a mirophonic valve, try
turning the cooling fan off ?
G ..
Sent: Saturday, August 23, 2008 3:35 PM
Subject: LF: 500khz rtty
Rtty transmissin covering 503 - 505 khz ie 2 khz
wide and outside the top of he permitted band. Active at present 1430
utc/23/8/08
de G3KEV
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