[PVRCNC] Antenna suggestions for attic

[Pete Soper]

I don't mean to be discouraging, but I had direct experience with this 
in the mid 90s. Your friend is almost certainly going to need a bunch of 
31 material ferrite snap-on and wrap-through toroids eventually, and 
possibly some custom filters. The most obnoxious behavior may be 
tripping the GFI circuits supplying the bathrooms and outdoor outlets, 
but the signal WILL come blasting out of the home entertainment and 
other speakers in the house. And unfortunately, Henry's point about 
interference from noise in the house wiring may be a real issue too and 
require some detective work and filtering over time. As for running high 
power with very inefficient antennas, this unfortunately may also be 
frustrating in that it will make a larger number of folks hear you but 
not do anything for your ability to hear them.

In summary, hurry up sun spots!!

-Pete AD4L


On 4/7/20 9:59 AM, Mike Barts wrote:
> Given that he is just getting started, so doesn't have a particular focus,
> a ladder-line fed dipole, as long as he can fit inside his attic, would be
> the most flexible antenna in terms of band coverage. This will require
> either an open wire tuner (preferred) or a 9:1 balun and coaxial tuner, but
> almost any attic antenna will be require a tuner. A homebrew ladder-line
> dipole would also be the least expensive to build. The only caveat for a
> beginner is the precautions of using ladder-line and keeping it away from
> other objects.
>
> Keep in mind that an attic antenna will couple strongly with the house
> wiring, so RFI might be an issue (i.e. phone/network/alarm systems/ TV),
> but consider it a learning experience :^)
>
> Let us know what he decides and how it goes.
>
> 73, Mike N4GU
>
>
> On Tue, Apr 7, 2020 at 9:26 AM NT4Q <nt4q at earthlink.net> wrote:
>
>> Greetings antenna gurus!  Not being in a restrictive hoa subdivision
>> myself, I am posting this question on behalf of my brother KF4HHD who is
>> just starting on his amateur radio journey.
>>
>> His subdivision is highly restrictive on outside antennas, so I am trying
>> to find an alternative that might work.  He has a fairly large attic above
>> a two story house oriented almost north/south.  Other than potential RF and
>> fire from possible arching if it is too close to conductive material, does
>> anyone have suggestion or experience with running antennas in an attic?
>> Maybe an Alpha Delta DX-EE or mount a small tribander in the attic.  It’s a
>> pretty large space.
>>
>> Right now, he is just getting started and just had 100 watts at his
>> disposal, but would like to run higher if/when that is possible.
>>
>> Hopefully, I’ll get my station rebuilt from the 2011 tornados and be able
>> to submit some logs soon.
>>
>> 73, Jerry NT4Q
>>
>> Sent from my iPhone
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