Who makes a good RF signal pre-amp for 800MHz scanners?

Who makes a good RF signal pre-amp for 800MHz scanners?

Post by LEADENW » Fri, 17 Aug 2001 10:31:49

Considering the demonstrated poor sensitivity of most scanners to the 800MHz
trunking signals, it would seem logical that someone has made and other have
used an RF signal pre-amp to correct this problem.

Has anyone used such a thing ?

Thanks,

Geo.

 
 
 

Who makes a good RF signal pre-amp for 800MHz scanners?

Post by Ende » Fri, 17 Aug 2001 10:55:46



Quote:>Considering the demonstrated poor sensitivity of most scanners to the 800MHz
>trunking signals, it would seem logical that someone has made and other have
>used an RF signal pre-amp to correct this problem.

>Has anyone used such a thing ?

>Thanks,

>Geo.

Hi Geo,

There are some very fine (and expensive) upscale preamps that do a
great job.  Being cheap, I grabbed a $29.95 inline bullet 20db preamp
from Radio Shack and mounted it at the feedpoint of a small
groundplane.  The preamp is sold as a Satellite/Scanner preamp.  It is
fed with about 40 feet of RG-6 coax and the AC wall mount powersupply
feeds the preamp with DC through the coax center lead..  It works
great from around 400mhz and up into the 1200 range and above.  It
passes frequencies below 400mhz without any amplification.  I have
also used one of these preamps with a UHF corner reflector TV antenna
flipped 90 degrees to make it vertically polarized.  That worked
extremely well.

Good luck,

Ender

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