Remote rf switch control box in the shack chooses which antenna is operational in the attic.
Ham antenna attic how to.
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.
But to boost the non repeater range of my baofeng a club member presented suggestions for stringing antenna wire throughout the attic crawl space such as at my 2 story condo.
Overall i d say it worked pretty well.
Attach a feed line and run to your tuner or if you are gonna use resonant antennas attach to your swr meter and check for high swr readings.
The coax shield would then be properly terminated at both ends and stop being a rogue antenna.
Also as previously mentioned my antenna is longer than my attic so i had do so some creative bending to get it all to fit in there correctly.
You will need a peak in your attic that is tall enough for the antenna to fit.
The kb9vbr 2 meter j pole antenna is 69 inches tall overall.
Much better than the last time for sure.
Falling through the roof is a much more likely scenario.
In some areas external antennas are not allowed so antennas located in the roof space are needed.
If the top of the antenna touches the walls or roof the performance may be affected slightly.
Attic antennas many types of antenna can be mounted in the attic if you don t have radiant barrier tech shield.
The initial deployment only took me 30 minutes plus a bit of time to feed the antenna line.
If you attic isn t tall enough you could angle the antenna mounting to make it fit.
As with most antennas the more height the better for indoor operating however most hams recommend using low output power.
Divide by 2 and place a ceramic dog bone or even pcv pipe insulator between them in the middle where you just cut and you got a dipole antenna.
When locating an antenna in the attic or roof space there are several precautions that can be implemented to ensure that the performance that is gained is the best for the circumstances.
I have no problem contacting my ham club s local repeater from inside my home.
Attic antenna installation precautions.
The same techniques apply.
Need lots of room keep them away from metal objects like heaters and ducts wire antennas can be run near the peak of the roof inside the attic bent in odd shapes to match the space available.
Keep the antenna as high off the floor as possible.
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.
The same dipoles and loops that you use in your attic can also be used in any other room in your home.