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Actually a couple decades ago it was popular to convert CB radios over to 10m FM. The Hygain chassis radios were the rigs of choice and the radio was easier to convert to FM if it was SSB because of the varactor circuits in them. If it was AM then you had some other mods to do as well as install the varactor diodes.
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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