UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Antenna recommendation for 40 and 80M bands

ORAWA01 · 10th Sep 2019, 3:46 pm

Thank you James. Yeah, it seems simplest and cheapest option. I was a bit weary about using balun, because it could be tricky tune for some part of the band, even if it could be resonant on some. Also I have seen where antenna has good SWR, but it wouldn't radiate efficiently, so it was not making any contacts.

And Fan dipoles could be configured as inverted V under some situations, I suppose.

I was reading up about the Doublet, and was a bit wondered if the twin line feeder coming into ATU might radiate and cause RF feedback problems? But then I recall some people using Doublets were putting strong signals on 40M without sign of RF feedback or distorted audio.

10th Sep 2019, 3:46 pm	#8
ORAWA01 Hexode Join Date: Apr 2011 Location: Stirlingshire, UK. Posts: 407	Re: Antenna recommendation for 40 and 80M bands Thank you James. Yeah, it seems simplest and cheapest option. I was a bit weary about using balun, because it could be tricky tune for some part of the band, even if it could be resonant on some. Also I have seen where antenna has good SWR, but it wouldn't radiate efficiently, so it was not making any contacts. And Fan dipoles could be configured as inverted V under some situations, I suppose. I was reading up about the Doublet, and was a bit wondered if the twin line feeder coming into ATU might radiate and cause RF feedback problems? But then I recall some people using Doublets were putting strong signals on 40M without sign of RF feedback or distorted audio.