Washtenaw TRS Issues

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BuiltonAsus

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Radio traffic today is coming across very sketchy with dispatchers and individual radios having a very difficult time communicating. Anyone know the back story?
 

Thunderbolt

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This system is having some very serious issues lately. Something is causing interference with the radio system, but more importantly, there are three channels that are you of synch with the transmitter sites. They are:


  • 851.1875
  • 851.2625
  • 852.2625
When frequencies are out of sync, this causes a significant "phasing" problem between each tower. As a result, the radio transmissions sound garbled, which can result in the dispatcher and units in the field misunderstanding certain messages. Hopefully, the radio techs can fix this problem before it becomes worse.

73s

Ron
 
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FPOWLD

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Washtenaw County TRS

According to RR Database, 851.1875, 851.2625 and 852.2625 are Alternate frequencies.
854.0875, 854.1875, 855.0875 and 855.1875 are the primary frequencies.

I hear Ypsi City and Ypsi Twp F.D. on these primary 800 frequencies. HVA tones out YTFD and then voice message. I only hear the tone for Ypis F.D. but no voice message. Then I listen to their conversations on the 800 frequencies. Have not noticied any big problem.
Don't listen to P.D. to often.

Of course I am 20-30 miles away.
 

fireresq2825

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Milan MI
This system is having some very serious issues lately. Something is causing interference with the radio system, but more importantly, there are three channels that are you of synch with the transmitter sites. They are:


  • 851.1875
  • 851.2625
  • 852.2625
When frequencies are out of sync, this causes a significant "phasing" problem between each tower. As a result, the radio transmissions sound garbled, which can result in the dispatcher and units in the field misunderstanding certain messages. Hopefully, the radio techs can fix this problem before it becomes worse.

73s

Ron
That is very timely information Ron, I've just started trying to narrow it down & confirm to specific channels. The issue is currently being looked at and there is more than one problem in play right now. It's been discussed in the Simulcast project meeting yesterday.

Dan
 

Thunderbolt

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That is very timely information Ron, I've just started trying to narrow it down & confirm to specific channels. The issue is currently being looked at and there is more than one problem in play right now. It's been discussed in the Simulcast project meeting yesterday.

Dan
Last night, 854.0875 was out of phase, but not to the point the other aforementioned frequency pairs are. By far 851.2625 is the worst offender.

73s

Ron
 

Thunderbolt

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I see that 855.0875 MHz, is starting to develop some rather interesting static issues. Likewise, the frequency is staying keyed up for 15-20 seconds on a few occasions. Hopefully, the system will make it until the new MPSCS simulcast system comes online in a few months.

73s

Ron
 
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