KB1UAM
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Northbridge Fire is now P25 Digital
Ch 1- 154.3625 NAC 362
Ch 2- 155.6625 NAC: 296
Ch 1- 154.3625 NAC 362
Ch 2- 155.6625 NAC: 296
Northbridge FIRE Dept
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ecps92
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You heard their FG from New Bedford ???
No. We know where he got that information from.You heard their FG from New Bedford ???
Anyways, a much more reliable person actually has confirmed it and submitted it here. I've added it to the DB.
ecps92
Member
I hate when people copy my homework
KB1UAM
Member
I have a friend out that way. He sent me the information, FYI
I've entered those into my APX 8500 radio and have not heard anything. Any idea which modulator theyre using? C4FM, CQPSK, Wide?? I also haven't been able to get Marlboro FD to work either, but I heard they sent the wrong info.
Make sure you are entering those NACs in the hex field in APX CPS
I did that What about the modulation options. How do I know if its C4FM or CPQSK??
CPQSK is standard for simulcast operation - i.e. multiple repeater sites broadcasting the same traffic on the same frequency. I've always had luck on my APX using CPQSK as the "default" setting, even for non-simulcast systems as I have found that it works pretty well regardless. C4FM on the other hand will not work well, if at all, with a simulcast system.
So by simulcast, this doesn’t necessarily mean broadcasting in digital and analog? It just means using multiple repeater sites?? I wish I could get more info from their end. I think they may still be using the analog channel for depts that are t using P25 radios, but not sure how they have that set up. I will try changing the mod to CPQSK and see what happens. Would using the wrong modulation type not allow for their dispatch to hear my radios?
Affirmative. Simulcast means broadcasting the same message on the same frequency at multiple physical locations.
It is possible that they are running a "mixed mode" configuration during the switchover period. This allows for the repeater to re-broadcast either analog or digital transmissions (but not at the same time). This is programmable in your conventional personality within APX CPS.
Not sure what you mean by this, but if you are an authorized user on their system and you have the modulation set incorrectly, there is a high chance that the repeater will not re-transmit calls from your radio.
Sounds to me your best bet is to reach out to them directly to confirm their current configuration settings. Browsing through their FCC license, it doesn't appear to me that they are simulcast, but I could certainly be wrong. I'm no longer in the area to confirm myself.
Thanks for all the info. I wish it was that easy to reach out to them but there’s only 1 guy I know that may have a clue how it’s set up. Even the Chief doesn’t understand what’s needed for the system to be programmed. I just don’t know enough about all the digital options as I’ve only programmed 1 successful channel that works: Southboro FD. I still can’t get Marlboro P25 to work and now Northbridge. I think Marlboro FD didn’t send out the right info and I can’t find anyone who knows anything
I cannot confirm the modulation however I would agree with your impression that setting a modulation of CPQSK will receive C4FM and CPQSK however the opposite is NOT the case.
I cannot personally confirm that the info that Marlborough sent out was correct but everything I've heard from other is it was. I suspect you have a programming issue on your end if you are having issues receiving both systems.
I cannot personally confirm that the info that Marlborough sent out was correct but everything I've heard from other is it was. I suspect you have a programming issue on your end if you are having issues receiving both systems.
I’m gonna try taking the radio home as I live in Northbridge. Maybe I’m unable to hit their repeater from Hopkinton, which could be the case.
mrsvensven
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No, this setting is only for the receive side of your radio. All portable and mobile radios always transmit C4FM regardless of this setting, and so it would not affect the system's ability to hear you.
Thanks for correcting me on this. I was always under the impression that setting affected both RX and TX. Good to know.
ecps92
Member
may I suggest, if you actually have written permission to be on their system, the Chief would have directed you to the Radio Shop POC to obtain the correct information
ecps92
Member
that way they also would have your RID in the Consolemay I suggest, if you actually have written permission to be on their system, the Chief would have directed you to the Radio Shop POC to obtain the correct information
Well he sent the channel info to all the mutualmay I suggest, if you actually have written permission to be on their system, the Chief would have directed you to the Radio Shop POC to obtain the correct information
Aid departments and it doesn’t say anything about needing permission like on the statewide troubled system. I don’t think they’re that specific about it.
ecps92
Member
As the Chief, it would be his/her responsibility to send out the "official" notification and likely thru the SWIC
if you don't hold the license, nor hold a piece of paper saying it's ok to be on xy and z - then ....you're not authorized
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