Cooling an FT2800M

I have described a solution an overheating problem with my IC2200H at Cooling an IC2200H. The Yaesu FT2800M suffers exactly the same problem. This article describes a thermostatically controlled auxiliary fan to keep the case at a safe temperature. Above is the test setup: Last update: 1st August, 2015, 3:55 PM

KG-UV920P repair / modification for driver FET failure

The KG-UV920P is infamous for failure of the driver FET, they run excessively hot and clearly outside of safe operating limits. I repaired one for a friend some years ago, and the dealings with Wouxun were enlightening. If I had little confidence in them before that experience, after it I would not give consideration to … Continue reading KG-UV920P repair / modification for driver FET failure