I was in Ground Radio from 1968 to 1972. The MPN-13A was the GCA van at Mactan, Philippines. Comm for USAF was UHF via the ARC-27 or more properly, the GRC-32 since it was ground based with the MPN-13A supplying the 28 volts. VHF was via the ARC-3 but that was for use for communicating with the Philippine Air Force F-86 fighters and perhaps their DC-3s. I believe that both are about 10 watts on transmit.
When I went to Germany, there was no VHF, it was all UHF. GRT-3 and GRC-27 were the tube powered 100 watt transmitters and very heavy, as I recall. Later, just as I was getting out of the AF, the long promised solid state equipment started to arrive. I think that Mactan and Zweibruken both closed in 1991 and are now civilian airports.
Jim
Logic: Method used to arrive at the wrong conclusion, with confidence. Murphy