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Suggestion for the RF cable

Simple, you use whatever size coax it takes to keep insertion loss to 2 dB or less at the highest operating frequency. You have a 25-meter-long coax operating at 433 MHz. Hit the coax spec tables and ...
Dereck's user avatar
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3 votes
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QRP operation SOTA, what coax cable feed-line for HF?

Plenty of SOTA activators use RG-174. Being on top of a mountain more than compensates for losses in transmit power. Being in a low RF noise location more than compensates for any receive losses. One ...
Walter Underwood K6WRU's user avatar
1 vote

QRP operation SOTA, what coax cable feed-line for HF?

You can't have your cake and eat it. Lightweight coax is smaller coax, and smaller coax has higher losses. Size (diameter), operating frequency, and loss are directly proportional. No one can answer ...
Dereck's user avatar
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QRP operation SOTA, what coax cable feed-line for HF?

Good RG58 is typically 40g/m or less. Is that mass too much compared to the mass of the radio and batteries?
clvrmnky's user avatar
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