[TVARC] Need HF stealth antenna advice

w3us at casa-aloha.net w3us at casa-aloha.net
Thu Dec 15 21:23:33 EST 2022


Sorry I am unable to comment on new construction Rick.  We live in a 15 year old house in Sabal Chase and my noise level is quite low.  This in spite of using a Flagpole 6-BTV as my main antenna.  Verticals are inherently noisy.  I also have a 12M bazooka laying on my roof (inv V) with which I’ve worked over 100 DXCC countries and 40 states.  Most all of those FT8.  So obviously, there’s nothing wrong with a wire on the roof.

Agree that battery powering your radio and killiing house breakers is a good way to start locating noise sources.  Wall-warts and LED strip lights are notorious.

Good luck,
Rusty - W3US

> On Dec 14, 2022, at 10:21, rick at kd9my.com wrote:
> 
> Hello all,
> 
> I am fairly new here, moved to Citrus Grove full time in January.  
> 
> I’m looking for some advice on stealth HF antennas.  There’s lots of info on the TVARC website and internet, but I am looking for real world experiences on what you’ve had good results with.
> 
> For my first attempt I built a 20-meter dipole and put it in my attic.
> 
> The antenna loads fine, but the horrendous QRM level makes it unusable.  We are talking a constant S-7 on 20 and S-9 on 40 meters.  I’ve never had to deal with noise levels of this magnitude.  Are the new houses in The Villages really this noisy?  I haven’t started trying to identify the source(s) of the noise.
> 
> So, my dilemma is, do I abandon the attic antenna and look for another solution, possibly an outdoor stealth antenna to get away from the noise, OR do I hunt down the source of the noise and try to reduce it?  I was thinking about laying a wire directly on the roof at the back of the house, in either an end fed or inverted V configuration.
> 
> I’d love to hear about other members experiences, especially with regard to receive noise on HF.
> 
> Thank you,
> 
> Rick Neukam
> KD9MY
> rick at kd9my.com <mailto:rick at kd9my.com>
>  
> 
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