|
tonyp063 is right.
FWIW: In an ideal installation, the preamp will be very close to the antenna. Any loss between the antenna and preamp is net noise margin lost forever. 20' of coax is not too bad and will rarely be a significant factor. By the time you get to about 50' of coax, at UHF frequencies, the loss is about 3 dB and the net NM hit is starting to become a consideration in some installations.
If both antennas are receiving one or more weak signals, and therefor require a preamp, a preamp at each antenna would be worth considering. The output of each antenna / preamp can be combined downstream of the power inserters in such cases.
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
(Please direct account activation inquiries to 'admin')
|