On 12/09/03 12:28, Obiwan-Kanewbi said...
|If mounted inside an attic with a asphalt
shingle roof you will lose about 45% of the signal
strength.
For perspective, while you are freaking out about what a great amount of loss that is, don't forget that -3 dB is a signal power loss of 50% !
Also, one of the reasons attic antennas are a crap shoot is that you do not know what material is in the roof. I once had ZERO success with an antenna looking through a tall gable. Turned out there was stucco on the outside, with a wall full of chickenwire. Putting the antenna in a cramped inconvenient place worked well.
