Investing in a low noise pre amplifier can also improve the signal levels.
How much signal block from anenna in the attic.
You will need a peak.
Is it of the magnitude of reaching only half the distance or is the loss less significant.
Improving an attic shortwave antenna a case study.
Most roofs have asphalt shingles on them which won t appreciably block rf radiation.
The kb9vbr 2 meter j pole antenna is 69 inches tall overall.
The ge 33692 attic mount hd antenna is a notable example of an antenna specially designed for placement in the attic.
Attic antenna attic mount loss is at least 3 db for a 3 4 inch plywood roof covered with roofing paper and one layer of 3 tab asphalt shingles.
Metal backed insulation in the attic or walls and metal exhaust vents and air ducts all block signals.
How much loss can be expected.
If your house has a tin or steel roof then the attic wouldn t be much of an option.
What is the typical signal propagation loss to be expected from a 2 meter 70cm j pole antenna mounted in an attic where the roofing material is the common 5 8 plywood and asphalt shingles compared to the same antenna mounted outside at the same height.
This antenna has all the reception power of an outdoor antenna but features a curved metal frame of reflectors that are designed for fitting easily into smaller attic spaces.