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Ritron uhf repeater,has duplexer inside and runs on 110vt ac or 12 vt dc,its a Rotron rra452 rrx450 works good,and didnt want to mess with it any more,its now on 461.5875 and 466.5875 73 de n0zna@juno.com
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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