Calvert County Public Services TRS

dtscho

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I noticed somebody submitted Fire and Local tgs for the new Calvert system - not sure of the source. The new system was not carrying traffic as of late last week.

Yes, we got a nice submission for the system. Three items of note:

1. According to the submitter, 852.1875 and 852.2500 are going to be used by the P25 system, but I didn't add them to the P25 system yet since they are still in use by the P16 system.
2. The talkgroups were given in eight-digit Motorola format (800xxxxx). I simply used the last five digits for the purpose of adding to the database. Someone with more knowledge of Motorola talkgroups - please confirm that this is correct. (I have reason to believe it is correct because the Calvert talkgroups fit in nicely in the statewide talkgroup numbering scheme.)
3. I'll try to clean up the alpha tags and descriptions for the Fire/Rescue talkgroups in the next few days - I just wanted to get them in the database initially.

Thanks,
Dave
 

maus92

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Yes, we got a nice submission for the system. Three items of note:

1. According to the submitter, 852.1875 and 852.2500 are going to be used by the P25 system, but I didn't add them to the P25 system yet since they are still in use by the P16 system.
2. The talkgroups were given in eight-digit Motorola format (800xxxxx). I simply used the last five digits for the purpose of adding to the database. Someone with more knowledge of Motorola talkgroups - please confirm that this is correct. (I have reason to believe it is correct because the Calvert talkgroups fit in nicely in the statewide talkgroup numbering scheme.)
3. I'll try to clean up the alpha tags and descriptions for the Fire/Rescue talkgroups in the next few days - I just wanted to get them in the database initially.

Thanks,
Dave
The wiki entry I created for the system should be accurate as it was sourced from their VFD board, but they didn’t cross reference to tgs, only zones and channel names. I look through some logs to see if I captured any of those tgs being tested in the past, but my data is spotty.
 

maus92

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This is a certainty?
Any idea when they could go live with encryption?
I have to return a SDS100 I guess. I'm only interested in monitoring Calvert Sheriff.
The fire side is certain that it will not be encrypted because their fireboard published a channel plan late last year that indicated most tgs as clear. The only encryption I noted was for their special operations group (and possibly some EMS tgs.) As far as the sheriff goes, several people have posted in Calvert forums about the plan to use encryption - I cannot confirm this, but it seems like a distinct possibility since several smaller jurisdiction sheriff's offices have deployed 100% encryption over the past few years - with notable exceptions (Worcester and Wicomico.)
 

Chris52

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Well it seems 33.820 is no longer being used. I’ll miss that low band frequency.

I’m still receiving that other county as well. I wonder what they will do about that ?

It’s coming in loud and clear here in St.Mary’s

The tones have been changed as well. I wonder why they couldnt keep the ones they have or had
 

maus92

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Again on Friday tg 1808 was very busy, both with records type traffic, and some dispatch related functions. I'm not familiar enough with street names in Calvert relate the channel traffic to a geographic area, but I'm wondering if the Calvert Sheriff's Department is going to split into two dispatch districts. Perhaps their new consoles / dispatch positions are already functioning in this configuration, preparing for the switchover to the new system which seems imminent.
 

maus92

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Well it seems 33.820 is no longer being used. I’ll miss that low band frequency.

I’m still receiving that other county as well. I wonder what they will do about that ?

It’s coming in loud and clear here in St.Mary’s

The tones have been changed as well. I wonder why they couldnt keep the ones they have or had
Did the character of the tones change, like they are using a new vendor's equipment? If the tones are different, at the very least the county would need to reprogram pagers, and other tone activated devices. If they are using a new vendor's tone set, that likely means new pagers. Have you verified your tone squelch setting? Maybe that can help - idk. What other county do you think is the source of interference?
 

maus92

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I’m still receiving that other county as well. I wonder what they will do about that ?

It’s coming in loud and clear here in St.Mary’s
The best I can determine, it's probably Madison County, VA licensed as a TRS. They are about 100 miles west of Calvert County in the Shenandoah area. 200W max ERP, probably with some elevation. WREA935. Doesn't look to be functional yet.

There are other licensees in Petersburg VA KIK653 and Burkesville, VA WQEN891 with lower power outputs, both at least 100 miles west.
 

maus92

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For a brand new paging system, the audio quality on 154.3925 is not very good. As far as interference resolution goes, generally jurisdictions will work together to solve their issues.
 

Chris52

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For a brand new paging system, the audio quality on 154.3925 is not very good. As far as interference resolution goes, generally jurisdictions will work together to solve their issues.


I agree ! It sucks when you need to turn it up higher then normal and then forget its up so high and Anne Arundel comes in and basically ejects you out of the drivers seat lol
 

Chris52

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Did the character of the tones change, like they are using a new vendor's equipment? If the tones are different, at the very least the county would need to reprogram pagers, and other tone activated devices. If they are using a new vendor's tone set, that likely means new pagers. Have you verified your tone squelch setting? Maybe that can help - idk. What other county do you think is the source of interference?

Some tones sounded the same, some didn’t (odd)

My settings are fine that I’m aware of

Also 33.820 is back online (weird)
 

maus92

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I caught FTO and *maybe* patched analog audio on tg 10271 on the Calvert P25 system this afternoon. I wasn't in the area long enough to monitor more than a few moments.
 

riveter

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The talkgroups were given in eight-digit Motorola format (800xxxxx). I simply used the last five digits for the purpose of adding to the database. Someone with more knowledge of Motorola talkgroups - please confirm that this is correct. (I have reason to believe it is correct because the Calvert talkgroups fit in nicely in the statewide talkgroup numbering scheme.)

Yes. In system databases, talkgroups are stored as 8###etc and radio IDs are stored as 7###etc
 

maus92

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Again today I was in southern Anne Arundel County and was able to copy the new Calvert County P25 system FTO, but this time on tg 10181. I heard FTO, and digital dispatch (and field unit) voice that directed units to switch to "Tac 1." "Tac 1" is a reference to a channel / tg on the P16 system.
 

maus92

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Tg 10181 on the P25 system is being simulcast with dispatch tg on the Calvert P16 system. No other P25 tgs were observed in use for the short period of time I monitored.
 
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