Hi. I'm not sure if it's true but I heard long ago that Icom radios run cool when transmitting in middle of operating band as opposed to transmitting on edge. e.g., a 400-470 MHz radio transmitting on 435 will not get as warm as it would on 400.xx or 469.xx. Is that right?
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WB4CS
Member
I don't see how that would be possible, nor how it could be just Icom that does it. (Maybe I'm wrong)
What is possible is the SWR of the antenna could affect the operating temperature. If using an antenna that has a good SWR in the middle of the band but a high SWR at the band edges, that would cause the radio to be hotter on those frequencies. High SWR=lost energy reflected back in the form of heat.
What is possible is the SWR of the antenna could affect the operating temperature. If using an antenna that has a good SWR in the middle of the band but a high SWR at the band edges, that would cause the radio to be hotter on those frequencies. High SWR=lost energy reflected back in the form of heat.
I never heard of that, but WB4CS is probably right with his theory.
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