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Any good ideas on adjusting swr on a diamond cp22e? Supposedly pre adjusted. 2.8 on 148, 146 was like 1.7. Not good. Change ground plane angle? Trim off the top? Trim the bottom?
Alright update. Only had to trim the top element to 46 inches. Thought it came out ok. Now, I still have a 1/4 wave hooked up and it's tip is the same height of the diamond. 1/4 wave ex signal is way less that of the diamond on the same local station. 4 1/4 wave vs 11 on the diamond. So far I'd recommend it
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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