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minimum gain is 13 dB. or 20X the input, 3w into
1XMRF455 = 60 out, 12w into 4XMRF455 = 240 out.
those input & output levels are pep with full modulation.
in am mode carrier should be set for 25% of full output
with the amplifier in the high power setting.
(no input padding)
if i am able to locate the schematic i'll post up either a
file or a link.
Please advise me to what is a good replacement mic for my SR-497HPC... Answer: 497 is "wired like Cobra", so many choices available. That radio does not need a power mic, so purchase a stock "coffin style" mic with a decent cord, like the ones that Astatic uses. The Superstar DM-507 is my go-to. https://www.ebay.com/itm/3050474478...adANq91JSiEEnz8EGqPJRBloTgEyaVsBoCtoMQAvD_BwE $12.99 + .99 cent shipping.
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