![]() ![]() I thought of doing this mod when i had the cover off my Yaesu FTM-100DR/DE when i was fitting the Yaesu FVS-2 Voice Guide Unit. I noticed that the Yaesu FTM-100DR/DE has a big vent hole behind the fan to allow a lot more heat to be drawn out from the unit but the Yaesu FTM-400DR/DE does not have this vent hole? no wonder quite a lot of people have been having heat issues with the Yaesu FTM-400DR/DE. The picture shows the mod that i've done to keep the temps down even better with the standard fan that's fixed to the rear of the radio. This is my modified Yaesu FTM-400DR/DE chassis. ![]()
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