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Old September 20th 04, 10:25 PM
WTP07
 
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Default Scanner Antenna - TV ant. seems to be OK...???

Hey all,

Just kinda tossing this out there. I am currently using my old TV antenna
for my SC150B and it works pretty well as far as I can tell...I can get most
of the local cops pretty clear as far away as 50 miles or so....I have the
amp/pre-amp hooked up with the FM trap set to "out"....

I guess my question is this: is there any advantage to purchasing and
mounting a new discone style or beam style antenna? I will be upgrading to
a PRO-95 shortly so that I can get the locally trunked cops too.

Any comments or suggestions appreciated.

Cheers!

R.



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Old September 20th 04, 11:54 PM
Skweezieweezie
 
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If you can, remove the mounting hardware and
re-install it so the antenna is oriented vertically.
Most public safety transmissions are vertically
polarized. Turn the FM trap ON to eliminate any
intermod that strong local FM stations might generate.


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Old September 23rd 04, 03:37 AM
cobradude
 
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I would add , without knowing the feedline setup,
that TV antennas are generally 300ohm and need a balun to go to 75 ohm
coax...for VHF and UHF work, I would say buy the best low insertion loss
balun you can(not radio shack, search google for hi quality ones!), locate
the lowest NF, highest IP3 pre amp right next to the balun and then just
about any length/type of coax down to the scanner and you will hear a lot!

HOWEVER, your mileage may vary,
tom f

"Skweezieweezie" wrote in message
news
If you can, remove the mounting hardware and
re-install it so the antenna is oriented vertically.
Most public safety transmissions are vertically
polarized. Turn the FM trap ON to eliminate any
intermod that strong local FM stations might generate.




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