Viewer request to try out an antenna for ham radio in the attic.
Ham radio attic antenna.
Many hams including many of you reading this are limited by hoa or other outdoor antenna restrictions.
August 10 2020 in.
Using the cq antennas center insulators from ke5fen.
After evaluating several commercial options he selected the arrow osj 146 440 j pole antenna.
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Yes in the attic.
The same techniques apply.
How high should my dipole antenna be.
If it is mostly used by ham radio operators to solve problems while transmitting the mfj 931 shouldalso work for a receive only purpose.
There are places that we mentioned earlier that won t allow antennas towers or antenna poles to be constructed.
A dipole in the attic of your home is a good idea if you have enough space in your attic to place one.
The mfj 931 could potentially be used a tuned counterpoisefor your attic shortwave antenna.
A j pole offers about the same gain performance as a half wave dipole.
Hf active loop antenna the cross country wireless hf active loop antenna is a compact receiving loop with a frequency range of 200 khz to 70 mhz with.
The house will act as a natural shield and as long as your attic mounted antenna system is independent to the rest of your antennas lightning won t be an issue.
For best results you would first tune the receiver to the frequency you.
This is great for the amateur radio operator that is providing net control activities during a skywarn severe weather activation.
The attic option imposed a height restriction on the antenna of 66 inches maximum and if the rooftop exterior option was necessary randy wanted a low profile antenna.
Keep the antenna as high off the floor as possible.
Thanks david for the insulators first to comment below i ll send you an insulator in the mail.
The same dipoles and loops that you use in your attic can also be used in any other room in your home.
Lots of amateurs in these situations are doing so successfully especially on hf.
On hf wire beams can be run on the roof supports or the rafters these usually are good for one direction only but can be switched electrically for different coverage.
I recommend using not less than 18 gauge for most antennas.
A second advantage to mounting the antenna in the attic is that you will be protected from lightning strikes in the event of severe weather.
But even if you can t put up an outdoor antenna you can still operate with antennas installed in an accessible attic space.
Again stay away from metal and wires to maintain your pattern.
