The kb9vbr 2 meter j pole antenna is 69 inches tall overall.
Ham attic antenna.
The mfj 931 could potentially be used a tuned counterpoise for your attic shortwave antenna.
Height length feedline balun and we will talk about a balun later insulators type wire used or type metal used what do you want to do with this antenna how many bands do you want it to perform its work if you can use the right materials space to hang one and the biggest.
I went to my friends house to check out his setup and get him up and running on some hf digital modes.
Once all the yagis were bolted in place on the mast i used my antenna analyzer to adjust their driven elements to provide the best match in the weak signal portions of each band.
Ladder line fed dipoles are ideal for attic use assuming that you can route the ladder line to your radio without too much metal contact.
Falling through the roof is a much more likely scenario.
In the case of the ladder line dipole just make it as long as possible and stuff it into your attic any way you can.
It is theoretically possible to create a fire in the attic from your ham radio antenna but the conditions required for that to work require purpose and luck making this not a realistic concern for the typical attic farmer.
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.
Remote rf switch control box in the shack chooses which antenna is operational in the attic.
If the top of the antenna touches the walls or roof the performance may be affected slightly.
Even if it is mostly used by ham radio operators to solve problems while transmitting the mfj 931 should also work for a receive only purpose.
Yaesu g 450adc medium duty rotator systems are the entry level rotator and controller that are perfect for small hf beams a tri bander or vhf and uhf antennas up to about 10 sq.
Let your antenna tuner worry about getting the best swr out of this system.
You will need a peak in your attic that is tall enough for the antenna to fit.
Can be handled when mounting the g 450adc on top of a mast with the optional lower mast bracket gc 038.
A lot of hams are struggling in an hoa with antennas o.
It s a long way from the rabbit ear designs you might think of when picturing indoor antennas and much cooler looking than the metal contraptions often found outdoors.
A lesser wind load of about 5 sq.
The ge 20431 futura outdoor indoor attic tv antenna is one of the best looking options on the market.
On vhf a beam antenna can work well in the attic even a rotator can be used.
Rotate amateur and professional antennas.
Of tower mounted wind load.
