I am on my second KX3, having sold the first one and then find myself missing it. However, I now find the KX3 routinely overheats in digital modes. Specifically, at just 5 watts on WSPR with transmission time of 2 minutes (as regulated by WSPR software) the KX3 overheats "HI TEMP" at a minute and a half, resulting in a safety shutdown of the rig. This radio has a wonderful built-in digital capability, but digital appears beyond the rig's ability, save CW which is my main digital interest anyway. I would like to use the KX3 occasionally on PSK, JT65 and WSPR without the absurdity of having to buy an after-market heat sink to replace a factory installed heat sink. There is no guarantee the after-market one is superior, and it shouldn't be necessary since a radio with a digital capability should not need some after-market accessory to enable the advertised digital mode. I wonder if anyone has found a firmware or software answer to the over heating problem. The overheating problem happens regularly in digital modes and I believe comments about the KX3 working correctly in digital are simply incorrect. This is not an antenna issue and not an SWR issue. Thanks Ron KM4VX
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