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This and the equivalent Bird model need to have the indicated value on the meter multiplied by a factor below 100MHz. In this case, it's +30% at 27MHz. So if you're taking 100W on the meter, your actual value is 130W. A bit inconvenient. More suited for VHF and above use, where it's 1:1
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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