hey, just 2 quick questions about repeater antennas
1- is it better to tune the antenna to the recieve frequency, transmit frequency, or right in the middle of the two?
2- any suggestions on a good NMO mount antenna for duplex use for UHF for mobile application. i tried an antenex phantom which didnt work well at all and an antennex 1/4 wave which worked a bit better. im thinking a 5/8 wave possibly?
thanks
-zach
mobile repeater antenna
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Tom in D.C.
- Posts: 3859
- Joined: Tue Sep 04, 2001 4:00 pm
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mobile antenna setup...
Tune for the transmitter so you don't stress the final amplifier with
a bad SWR match.
The simplest UHF gain antennas are usually made in a 5db gain
configuration due to their relatively short size. The old
Motorola UHF antennas with the NMO mounts can usually be
found at hamfests or on the back shelves at a Motorola Service
Shop.
a bad SWR match.
The simplest UHF gain antennas are usually made in a 5db gain
configuration due to their relatively short size. The old
Motorola UHF antennas with the NMO mounts can usually be
found at hamfests or on the back shelves at a Motorola Service
Shop.
Tom in D.C.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.