The QRPer Board

Considering how easy it is to build https://vk6ysf.com/unun_9-1_v3.htm I think it won't be a problem building one of them as desired :) the "ground" goes to the counterpoise(s) or to ground stake, a small IP66 electrical junction box will host the toroid, the wire connectors and the coax o...

the double t-bar may be unsuitable for some spots, but imVVHo will serve you well in all other cases when you can't set up an endfed wire

for "no tree" or "no wires up trees" situations, consider the *double t bar" antenna

https://www.qsl.net/hb9mtn/hb9mtn_vertdip.html

a ground stake or a tripod will support it, and while the gain isn't high, the takeoff is low, even if the antenna is near ground

or just a "one fits all" random wire which can be installed in different ways, including inverted L

for fixed ops one side of the antenna may be suspended to a rope tied to a weight, so that the antenna wire is free to slide, for portable one may use an alligator clip, if someone/thing trips over the antenna wire the alligator releases it

check the POTA cables here

https://messi.it/en/catalogue/50-ohm-rf ... t-coax.htm

Also, carbon fiber masts are conductive, so they're a "no go" if one wants to use them for a vertical antenna, better looking for fiberglass poles, those will do double duty to both act as center support for a dipole/doublet or to put up a vertical antenna just by hanging the wire at the t...

Late on this one, I suggest looking at "Messi & Paoloni" products, and not just coax cables, but connectors too; I've used their products several times and never had to complain

my 2 cents

Just noticed that the same folk(s) behind the uBitx made a new model, this one is called sBitx https://www.hfsignals.com/index.php/sbitx-v3/ and seems to offer quite a buch of features, but then it's an SDR and I wonder if it may be plagued by the same issues of other SDR based rigs, including the f...

N8TGQ wrote: ↑Sun Jan 28, 2024 9:28 pm Since you're running from your car, maybe try an antenna mount right on the car. It will beat any ground plane you can lay out under the tripod by a lot!

A drive-on antenna base and a relatively short (5...9ft) fiberglass telescoping mast to keep the whip above the car may fit well