KL7UW

144-MHz 1200W Power Amp


March, 2018: I purchased a partially constructed 2m W6PQL 1200 watt LDMOS amplifier kit, which will replace the 2m W6PO 8877 amplifier and HVPS. It will eventually be installed in a weather-proof 19-inch fiberglass cabinet and located at the base of the 2m-eme tower. This will eliminate need of 120-foot of 1-5/8 inch low-loss feedline and 30-foot of LMR-600 jumper cables (0.6 dB loss). Amplifier will operate at 1100w vs 1500w which is 1.3 dB lower in power so the resulting effect will be an effective drop in EIRP of 0.5 dB (or like currently operating at 1300w with the 8877). I suspect little observable effect to my eme signal on 144-MHz. (more to follow)


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