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  #21 (permalink)  
Old 09-01-2016, 1:54 PM
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Post Ccspd ispern 67.0 pl tone

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Originally Posted by RoninJoliet View Post
Heard Cook Co today on ISPERN 155.475 using old PL-67.0.....
Heard the same this afternoon. Using 67.0 instead of 107.2
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Old 09-01-2016, 4:19 PM
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IIRC 67.0 PL is what's used to access Starcom patch. Everything else should be 156DPL or CSQ.
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Old 09-02-2016, 4:49 PM
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Originally Posted by Rockford_IL View Post
IIRC 67.0 PL is what's used to access Starcom patch. Everything else should be 156DPL or CSQ.
As per the Illinois EMA field operations guide and Statewide Interop Plan ISPERN is supposed to use DPL 156 for transmit and nothing for receive.

VHF is patched to Starcom at the ISP district coms center. As far as I know it's either CSQ or DPL 156.

It's possible there's other tones being used either in error or for special purposes.
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Old 09-02-2016, 4:52 PM
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Quote:
Originally Posted by melvin1987 View Post
Most if not all ISPERN messages from Du Page county's UHF patch are clear with mobile relay with certain agencies. The VHF ISPERN 155.475 is usually one sided dispatch unless the action is nearby.
This is one reason to monitor through something with an ISPERN patch. District 5 has a big tower. I have a little telescopic whip on the back of the radio. They hear mobiles much easier than I do. However, sometimes the patch is worse. Will County's EDACS for example has the squelch set way too low and you frequently hear hash over their trunk.
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Old 09-02-2016, 5:38 PM
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Quote:
Originally Posted by AC9BX View Post
As per the Illinois EMA field operations guide and Statewide Interop Plan ISPERN is supposed to use DPL 156 for transmit and nothing for receive.

VHF is patched to Starcom at the ISP district coms center. As far as I know it's either CSQ or DPL 156.

It's possible there's other tones being used either in error or for special purposes.
That is correct, but 67.0 is actually used by ISP to control activation of the SC21 ISPERN patches, that is why it shows up on their transmissions.

I always suggest listeners program their scanners with either no PL/DPL or in Search Mode for these channels due to the multiple tones used, either by design or improper programming.
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Old 06-13-2017, 10:56 PM
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ISPERN 155.475 using 71.9 PL this evening...
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Old 06-14-2017, 2:57 PM
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That's the new PL in Chicago district and it seems to be 79.7 in the Rockford area.....
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Old 06-15-2017, 4:10 PM
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Quote:
Originally Posted by melvin1987 View Post
ISPERN 155.475 using 71.9 PL this evening...
I also heard it using 71.9 PL. It seems to be used by District Chicago and District 2.

Sent from my XT1585 using Tapatalk
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Old 06-15-2017, 5:47 PM
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I saw the 79.7 on a District 16 ISPERN Broadcast, But the signal strength seem stronger than a Dist. 16 transmitter should be. I will have to monitor more. But maybe each Dispatch Center will have a different tone.
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  #30 (permalink)  
Old 06-19-2017, 12:30 PM
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Dist. 17 (and I presume the rest dispatch by Sterling) is still using 79.7 as of this morning
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