Overload reception question

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W5TWX

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Dec 19, 2002
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Round Rock, Tx.
I have a 396 and i've been using a 1/4 wave unity gain antenna and getting pretty good results. It's tuned for a center freq of 861.5. The system i'm monitoring is a 800 MHz Apco 25 standard digital system.
Here's the link if you want to check it out. It's the Williamson County part of the Austin / Travis County / Williamson County / system. http://www.radioreference.com/apps/db/?sid=2

I bought a new 1/2 wave 2.5dB gain antenna that is tuned the same as the 1/4 wave. I'm getting full scale reception on the bar graphs, but i'm not getting all the transmissions. These antennas are both handheld antennas and are made by the same company. Antenex.

My question is this: Is it possible to overload the front end and not receive some of the transmissions? Is my reception too great?

I'm confused on this one! Any ideas?
 
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policefreak

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Jan 5, 2007
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1,841
Location
Berlin, NJ
Yes, it is possible to receive a digital transmission signal strength too great for the scanner to process. Simply set the attenuator for the system and see what happens.
 
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