Можно кабель RG-58, например, только следите, если начал нагреваться, выключайте, а то нарушится геометрия и уже будет где-то резонировать...
And finally don't forget that long reel of coax, these also make good dummy
load if the loss is high & the first few metres are unwound to dissipate the
heat. _______________________
(_______________________(-< QRO
(_______________) Load
(_______________)
QRP _(_______________) 50M drum
Load <-)_________________) of Coax
I have run >400W on 70cms on test this way without a QRO dummy load. The first
few metres of UR67 coax did get quite hot though & there was some radiation,
but the SWR was as good as you can expect from coax!