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I don't know whether it will or not. I've never owned a GM. Let us know what you think.
You will need to get the top of the AP as high as the top of the GM to really make a comparison. The AP itself is only 4' longer above the feedpoint which is at the top of the mast. The GM is 24' long above the feedpoint.
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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