Mike K3LOE$291 for four lightning arrestors and some copper paste! I figure I’m not going to make a better decision about these than KE0OG, so I went with Morgan.
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Comrade Weez@K3LOE Gas tube arresters work pretty well. In commercial 2-way and commercial/amateur VHF/UHF repeaters, we use the name branded Polyphaser. They are less susceptible to PIM (passive intermodulation) which can produce spurious signals on either side of the xmit freq. The Morgan type might be better for HF work.