Thanks Peter, you made some interesting and new to me points about the old stalwart, doublet. Fashions come and go but there is a lot to be said for this simple and efficient antenna. Best 73.
Thank you, Peter! I always learn from your videos. I'm strictly portable/QRP operations. My QTH, both by design of the building (5-story condominium apartments, U-shaped building, my unit is 2nd floor on the inner courtyard) and its location in the city (blanketed by surrounding structures and power lines: I have to walk up the block to make a cell call some days) is pretty well impossible for radio. I normally operate from a few parks at the southern end of the San Francisco Bay--a few minutes drive from home and nice ground plane on the salt marshes--but only one has room to deploy my 10m - 40m EFHW. I've been looking for a smaller footprint, multiband antenna. I'd been thinking of adding a matching unit to my IC-705 kit: this convinced me to go ahead with the compact, manual ZM-2 tuner from Emtech. As an aside, I've finally begun learning CW. My key is a WT 8 AMP. 73 de KN6NPZ, Daryl, San Jose, California
thx Peter, interessting as always. there is a particular idea for an antenna that I would like you to cover in one of your videos. You heard about quax antennas ( or coil antenna)? it is basiclly a pvc tube and you wind up a full lambda wire on it. e.g. 60m of wire with a copper rod at the top for tuning ( you cut it down) on feed point you put some radials.. . It is not good for the ground wave.. but theoretically it works good for anything else . I know that sounds like a giant dummy load ..But I read some stuff about it.. and it seems to be legit .. anyway.. I really like to hear your opinion about this. '73
What balun would you recommend that would work from 20 metres to 6 metres with this antenna? As usual another great video, thanks. As a ‘B’ licensed amateur for nearly 50 years operating 2 metres and above with a recent switch to HF the choice of antennas for my small garden becomes critical. :)
A 4:1 is the usual choice with doublets, if your ATM is designed to take the wires from twin feed directly it likely has a 4:1 built in. I tried many ways to feed my doublet when I first put it up, and an ATU designed for receiving the twin lads directly is far and away the best solution.