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Feed Line for 2M & 70CM

Jun 22nd 2012, 15:16

N6GPG

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
What would be the best size coax for low wattage>25 watts?
Jun 25th 2012, 14:00

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0


RG-58 and RG-8X will handle 25 watts at UHF, but the losses of the thinner cables may be excessive if the cable run is long. I wouldn't worry too much if you are just trying to hit nearby repeaters, but as a rule of thumb, when you have a range of nearly 100 miles, it often doesn't take that much more to extend the range. On the other hand, if your range is more like 10 miles, it is a pretty tough to make much of an improvement with better coax.

Zack Lau W1VT
ARRL Senior Lab Engineer

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