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Old 02-11-2019, 02:41 PM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by Crist Rigott View Post
Here is a section of the schematic from Sams. It is R9. Below it are the Alignment instructions that talk about setting the Bias Control. Frankly, how or why its there is above my pay grade.



Interesting, thanks for posting! I suspect that they are driving the first two stages of the if amp with a different level of agc (through the dc amplifier, v11) than the rf stage (direct from the local/distant switch) to optimize signal to noise ratio at a given total gain. This is just a WAG.

jr
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