Pennsylvania Turnpike frequency changes

EMT1301 · May 11, 2017

A group of dispatchers from Somerset 911 toured Highspire network operations center recently, which included me. During our tour, the Turnpike Incident Management Coordinator, Todd Leiss, mentioned to me that the turnpike will be making a significant change to their radio system in the very near future. The current radio system allegedly is causing disruptive interference to Cecil County, Maryland. To mitigate thus, the turnpike will be switching the input and output frequencies for several (or all) of their repeaters. I don't have details, such as which channels/districts will be affected, nor their timeline, but I will be monitoring ULS for any applicable license applications and update this thread as soon as I learn anything.

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W3DMV · May 11, 2017

Keep us posted if more info becomes
Available.
Don't think that makes sense. I can,t
find any frequencies that Cecil Co and
the turnpike share ?
Word from comments here on RR
indicate Cecil Co will depart from their
VHF system and construct a new 700/800
system in the future..

EMT1301 · May 11, 2017

I'm fairly certain he said Cecil County, but maybe I misheard. But he definitely said it was a Maryland county which was receiving the interference

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n3obl · May 12, 2017

Biggest thing I've seen with license applications is they are flipping the input And output freqs. Basically I assume new setup will be 156.195/159.045 and 156.225/159.075. Not sure though on timeline as this will be a massive project coordinating reprogramming of equipment and base equipment.

n3obl · May 12, 2017

Also I believe it's st Mary's county. The 159.075 output interferes with an repeater input on their end.

EMT1301 · May 12, 2017

n3obl said:
Biggest thing I've seen with license applications is they are flipping the input And output freqs. Basically I assume new setup will be 156.195/159.045 and 156.225/159.075. Not sure though on timeline as this will be a massive project coordinating reprogramming of equipment and base equipment.

Where did you see the application? I just checked ULS last night and haven't seen any new applications since 2015.

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n3obl · May 12, 2017

ULS Application - Public Safety Pool, Conventional - 0006433294 - PENNA. TURNPIKE COMM.

Here one from late 2014 where they flip flop the fb2 and mo. I believe they been working on this for few years.

n3obl · May 12, 2017

https://wireless2.fcc.gov/UlsEntry/...tachmentKey=19741093&attachmentInd=applAttach

EMT1301 · May 12, 2017

n3obl said:
ULS Application - Public Safety Pool, Conventional - 0006433294 - PENNA. TURNPIKE COMM.

Here one from late 2014 where they flip flop the fb2 and mo. I believe they been working on this for few years.

Oh, I see, I just didn't go back far enough through their applications. It sounded like either this year or next they will begin this very large undertaking.

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n3obl · May 12, 2017

If you look at the second post. They have a nov 30 deadline as part of 5 year buildout extension.

talviar · May 12, 2017

If u look at this documents it explain why 159.045 and 159.075 are being discontinued as a repeater output. . . . .

https://apps.fcc.gov/edocs_public/attachmatch/DA-14-1280A1.pdf

EMT1301 · May 12, 2017

talviar said:
If u look at this documents it explain why 159.045 and 159.075 are being discontinued as a repeater output. . . . .

https://apps.fcc.gov/edocs_public/attachmatch/DA-14-1280A1.pdf

Interesting to read.

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n3obl · May 15, 2017

Thanks tony. I remember reading that one a while ago.

druhe · Jun 3, 2017

Time frame ?

With the frequency and PL changes now posted in the database, has anyone heard of a time frame for the change over ?

wa3bxw · Jun 3, 2017

PA. Turnpike

The Eastern end of the turnpike (mile 300 to 359) is slated to switch today June 3rd., It will be a new repeater output frequency, not just an input/output switch. The new frequency will be 155.130 with a 77 0 PL tone on the output.

HM1529 · Jun 3, 2017

druhe said:
With the frequency and PL changes now posted in the database, has anyone heard of a time frame for the change over ?

Districts will transition throughout June. D4 was first. Should be at least one each weekend,

4, 5, 3, 2, 1.

n3obl · Jun 5, 2017

I assume ch 6 pl going to stay the same. I can pick up some the plow trucks chatting on that during [winter time. Also get sporadic chit-chat.

wa3bxw · Jun 5, 2017

PA. Turnpike

There is no change for channel 6.

scanner92us · Jun 17, 2017

District 2 flipped this morning starting at 11 AM. About 1-2 hours later they were fully switch and in full operation.

Steveradio · Jun 18, 2017

With the link systems and other agencies using the system this will be a major undertaking but FCC tells you to do it, need get it done.

This will be interesting to monitoring.

Pennsylvania Turnpike frequency changes

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