UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Aerials, Feeders, Transmission lines, AMU's and ATUs. Matching.

Dave757 · 25th Jul 2019, 12:15 pm

Hi,

Whilst agreeing with all that has been said regarding the Halo, I use
one as I am not able to erect an external antenna, and my loft space
in the bungalow is so shallow that no type of beam antenna is possible.
It may have 3db loss over a dipole (facing in the correct direction),- half an
S point, but a vertical would have a 20db loss for horizontally polarised signals.
A strange feature of the 2M halo is that it always receives the PI7CIS beacon
much stronger on the 70cm band than on 2M.
Works ok on 70cm transmit too.

Best 73
Dave G0ELJ

25th Jul 2019, 12:15 pm	#17
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 649	Re: Aerials, Feeders, Transmission lines, AMU's and ATUs. Matching. Hi, Whilst agreeing with all that has been said regarding the Halo, I use one as I am not able to erect an external antenna, and my loft space in the bungalow is so shallow that no type of beam antenna is possible. It may have 3db loss over a dipole (facing in the correct direction),- half an S point, but a vertical would have a 20db loss for horizontally polarised signals. A strange feature of the 2M halo is that it always receives the PI7CIS beacon much stronger on the 70cm band than on 2M. Works ok on 70cm transmit too. Best 73 Dave G0ELJ