
Morning text from dad says (6:16 a.m. his time): I added 12″ to the long element, elevated and taped the pole to the outdoor patio post. I did a better job of laying out the coax and got 1.09 on the SWR meter.
ChatGPT said:
Thatās excellent news.
1.09 SWR is very good, especially for a temporary patio-post setup. Iād tell him:
Stop cutting. Stop changing. Mark everything.
The big improvement probably came from some combination of:
- getting the antenna vertical and outdoors
- getting it away from the window/house effects
- improving the coax layout
- lengthening the radiator
A 12-inch addition is surprisingly large, so before making it permanent, Iād have him check SWR on:
- GMRS channel 1 / 462.5625
- a mid GMRS channel
- repeater input / 467 MHz, if heāll use repeaters
If SWR stays under about 1.5:1 across what he uses, call it a success.
Given heās 92, Iād especially say: take the win.

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