|[AMRadio] Antenna Issues|
James R. La Frieda
lafrieda at earthlink.net
Tue Jul 8 16:17:31 EDT 2014
One excellent alternative to a stealth flagpole antenna, or heating up
one's rain gutters is to build a Hi Q Magnetic Loop Antenna
that is no more than 3 ft in diameter, and which works out great, being
only 3 ft off the ground.
To see these loop antennas and how they are built , look at the QRZ. com
site of Rich, K8NDS
And, if you become interested, join the Yahoo Group at:
Below is a recent e-mail from a ham who just built his first Hi Q loop:
Thank you, Rich. I hope to start experimenting sometime later this
week. I'll post more results afterwards.
By the way - during field day with my club, one of the hams came with
his mag loop antenna he made. It was a crude layout but did it ever
work.....!!!!!!!!! He made over 100 contacts on 15m. Even worked
Russia, France, and South America with 50w on PSK31. His loop was 3 ft
diameter. 2 ft off ground held up by 1 in PVC pipe stuck in a 5 gal
bucket of sand. He used a air capacitor and a Grama match. Got 1:1 on
Everyone at my club knew I was working on my loop but couldn't get it
working in time. His loop made believers out of our members. I gave
several members this Yahoo group to check out. As you know, lots of
hams don't know about how good a performance you can get from loops,
especially your helical design :-
73, Jim (N6MV)
On 7/8/2014 12:03 PM, Donald Chester wrote:
> -----Original Message-----
> From: Rob Atkinson <ranchorobbo at gmail.com>
>>>>> A "stealth" antenna, an outdoor screwdriver vertical, attic dipole, wire
> hidden under roof gutters, and so on are simply not acceptable antennas.
> The laws of physics make this a fact that can't be
> disputed, and I stand by that statement. While there are odd HOA
> exceptions or hams who claim to be satisfied with their hidden stealth
> antenna, that doesn't change the general fact that a fully exposed full
> sized antenna is necessary for a satisfactory HF (and AM) operating
> This is why it is very important that hams contact their congressional
> representatives and ask them to co-sponsor HR 4969.
> K5UJ >>>>>
> And as you once pointed out already, the mainstream ham rags like QST, CQ
> and the Handbook are not doing the ham community any favour by bombarding us
> non-stop with editorials and articles touting the wonders of "stealth"
> antennas, without conspicuously pointing out their limitations.
> If a tower or antenna case goes to court and the ham tries to invoke PRB-1
> or if a ham tries to reach a settlement with the HOA, all the anti-antenna
> people have to do is bring a stack of these articles to the hearing as
> proof that one can "communicate" satisfactorily with a compromise antenna,
> which would fall within the realm of "reasonable accommodation" and
> therefore the proposed structure is un-necessary.
> Don k4kyv
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