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Magnum Delta Force distorted SSB modulation when cold.
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November 22nd 06, 11:44 AM posted to rec.radio.cb
Frank Gilliland
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First recorded activity by RadioBanter: Jul 2006
Posts: 432
Magnum Delta Force distorted SSB modulation when cold.
On Tue, 21 Nov 2006 04:23:35 -0500,
wrote in
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On 20 Nov 2006 22:03:17 -0800, "Julian" wrote:
The distorsion is superimposed on voice, rather than additive. Its
like the voice becames modulated and distorted. Reducing the
microphone gain does not help. As under the same conditions, the AM or
FM modulation is not affected, I wonder whether the SSB modulator has a
sensitive component.
Explain the word Brumming. Is it synonymous with vibrating?
Superimposed or additive?
Most likely the voltage regulation to the vco is being compromised.
If it was affecting the VCO then FM wouldn't lock. Up North here we
get this problem every so often. It's a cap on the power supply,
usually somewhere around the driver or pre-driver. Just get a can of
freon from Radio Shaft (if they still sell it) and squirt the caps one
by one until you find the bad one and replace it.
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