Control Channel Confusion

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LFRfreak

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Jul 19, 2003
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Mount Juliet, TN
Today I found two control channels that aren't in the database. My radio was showing 868.24375 as T0101 and 868.98125 as T0105. Both the database and my radio are showing that T0105 is 868.97500 (Thorodin). Since when do control channels have two primary frequencies?

Thanks,

LFRfreak
 

jimmnn

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LFRfreak said:
Today I found two control channels that aren't in the database. My radio was showing 868.24375 as T0101 and 868.98125 as T0105. Both the database and my radio are showing that T0105 is 868.97500 (Thorodin). Since when do control channels have two primary frequencies?

Thanks,

LFRfreak

T0101 868.2375 Littleton (Admin) 101

T0105 868.9750 Thorodin Mtn (Wondervu) [WIDE COVERAGE] 105

Jim<
 

scanlist

Scanning since the 70's to today.
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Jan 20, 2002
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Greeley, CO
LFRfreak said:
Today I found two control channels that aren't in the database. My radio was showing 868.24375 as T0101 and 868.98125 as T0105.
Easy explanation. The scanner searches in .0625 steps. The channel spacing for all the DTRS transmitters is .125 KHz. Since the transmission bandwidth is wider the scanner is receiving them them .0625 above the actual transmitting frequency.

Now if the radio is not receiving the CC's on the proper frequencies then you are looking at a radio calibration issue.

Phil.
 
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