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I have a Connex 3300hp. When the radio is turned on I have no TX/Rx. If I wait about 1 minute all of a sudden the radio starts receiving and transmitting. Anyone have any thoughts?
I would say you have a cold solder joint some where. take a plastic tool and push on the board and see if you can find where it is at. or you can use some cold spray and see where it cuts out at when you hit a small spot at a time. I would start in the VCO and PLL areas 1st to see if it is around that area.
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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