Montgomery County De-Sence

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KK4HG

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Jun 19, 2008
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188
Location
Rockville, Maryland
Not sure whether this should go here or under GRE so I will try here first since it is location specific.

I live very close to the intersection of 355 with Montrose Rd. I have a PSR600 with an indoor Diamond D220 mini discone sitting on my desk by a window. About 20 feet of RG58 cable between antenna and radio.

The problem I think, is front end overload from a very near-by MC trunk site. About 20% of the signals from the County are garbled. ATT helps but I don't like to leave it on for fear of missing something.

My TSYS settings are as follows:

Type: Mot 800/900
CC: 1. 868.6875
2. 868.8625
3. 868.8875
4. 868.9375
L/Out: Off
Expert
Atten: On
Narrow FM: No
Audio Boost: Off
Dwell: 0
Dig AGC: On
Super Track: On
Multi Site: Off
T Tables: Default
Fleet Map: Type II.

Is there some tweeking to be done or must I live with it?
 

ResQguy

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Dec 19, 2002
Messages
1,248
Every mobile antenna in the county is connected via 17 feet (or more!) of RG58. The loss at 800MHz is only about 13dB/100 feet. I'm pretty sure thats not his problem, especially since he stated he is likely receiving too much signal already since the ATT helps a little. If anything, I'd add MORE attenuation and see if there is improvement.

KK4HG how well do you receive the system on the back-of-set antenna?
 
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