What's going on in PG????

[chief34a]

The south system overlaps the north system by a fair amount but not that much. It is very unlikely that you will hear the C talkgroups that far north. I have the freq that 15 is written down somewhere, I will let you know ...................

 

[baybum]

Montgomery/PG Patch

Does anybody know, or can find out, if Montgomery Co. has any plans to simulact PGPD over their patch TG's? For example Z10.

 

[troymail]

The south system overlaps the north system by a fair amount but not that much. It is very unlikely that you will hear the C talkgroups that far north. I have the freq that 15 is written down somewhere, I will let you know ...................

Upper Marlboro (area around Rt 301 and Rt 4) is pretty good for an "overlap area" -- hung in the area for a while today -- no significant fire dispatches but several EMS dispatches on Ch 7/8C7 -- Ch 7 is heard but still nothing on any C talkgroup (but Ch 1/8A1 and Ch 2/8A2 are active and can be received on the South system just fine).

As I drove north, I lost the South system so I switched back to the North system -- there was a fire call active on Ch 4/ 8A4 in the Bowie area -- never heard a peep of this activity on the South system....

Curious why the police talkgroups seem to be heard from one end of the County to the other but the fire talkgroups are split up like this....

I have to believe that the South side really isn't fully activated yet for the fire talkgroups.....

 

[troymail]

Can anyone tell me the history of fire Channel 10?

Per the first post:

Old channel 10 is new zone A channel 11 (not a typo)


If I have things right,old Ch. 10 / new 8A11 is talkgroup ID 1069....

I can't hear (or haven't heard) anything on the south/"C" (8C7, etc.) talkgroups -- but there was a rescue operating on 8A11 earlier today around 1100 in the 12900 block of Brandywine Rd.. -- and on my maps that's pretty far south...

Can someone confirm this incident was on 8A11?

Why is a call in the south like this on 8Axx? Is this possibly one of those talkgroups that is the same on both 8Ax and 8Cx?

Just curious

Note: really good clear reception in the Annapolis Junction area (Howard/Anne Arundel County line -- I parked in my "sweet spot" parking space today!!)

 

[Dewey]

Can anyone tell me the history of fire Channel 10?

Per the first post:

Old channel 10 is new zone A channel 11 (not a typo)


If I have things right,old Ch. 10 / new 8A11 is talkgroup ID 1069....

I can't hear (or haven't heard) anything on the south/"C" (8C7, etc.) talkgroups -- but there was a rescue operating on 8A11 earlier today around 1100 in the 12900 block of Brandywine Rd.. -- and on my maps that's pretty far south...

Can someone confirm this incident was on 8A11?

Why is a call in the south like this on 8Axx? Is this possibly one of those talkgroups that is the same on both 8Ax and 8Cx?

Just curious

Note: really good clear reception in the Annapolis Junction area (Howard/Anne Arundel County line -- I parked in my "sweet spot" parking space today!!)

Troy,

Sorry I can't give you an actual "answer", but I can answer parts of your question. "Old Channel 10" wasn't always PG's. Both PD and FD only had eight channels in the old days! This was probably because their early portables, the GE PE (early 70's) maxed out at eight channels. (The GE PE was also DC's second portable behind the GE PR25). When Anne Arundel Co went trunked and to 800 MHz (I'm pretty sure it was AA), PG picked up some of their old frequencies, thus the expanded channels. From there, the only things I've shown for the then new FD channels 9 & 10 is Mutual Aid. Sorry I can't help more, but this is how I remember it. As always, I reserve the right to be wrong .

Concerning the Brandywine Rd assignment. Brandywine is about as low (south) as you can go in PG, especially on the western side of the county. That particular block of Brandywine Rd is not far before Brandywine Rd crosses over from west of Rte 5 to east of Rte 5, and continues to run deep down into the lowest part of the county. It also becomes Aquasco Rd as it stretches down into that corner.

Dewey

EDIT: Wanted to add a picture of the old GE PE that I knew I had around somewhere... one of my favorite radios.

 

[troymail]

Thanks - I don't think PG got an old AA Fire frequency -- they were:

154.01 (still used for paging today)
154.34 (may still be used for medivac patches - not sure)
154.175 (old fire ground channel)
154.28 (mutual aide still in use)

However, I suppose they could have gotten and old AA police frequency (I think they were UHF but I don't listen much to PD so I can't remember).

And for the record, I recall using the old 154 mhz (3-4 channel) Motorola radios in the late 80s - wow - were things simple then!

 

[ResQguy]

PGFD channels 9 and 10 were from the old Montgomery County PD, Silver Spring district.

 

[Dewey]

PGFD channels 9 and 10 were from the old Montgomery County PD, Silver Spring district.

Thanks. I'm wondering why I'm still picturing AA Co. Is it possible that the PGPD 9 & 10 came from the AA Co PD?

Dewey

 

[ResQguy]

I can't seem to find my old list from FL Anderson but that could be the case.

 

[troymail]

More curiousity - just heard another incident dispatched -- Crane Hwy near Rt 5 -- first alarm included Charles County units -- assignment was placed on talkgroup 8A8 .... not an 8Cx talkgroup.... South?

 

[ka3jjz]

Much against my better judgement, someone has submitted all the talkgroup information and posted it on the database...

Prince George's County (Project 25) Trunking System, Various, Maryland - Scanner Frequencies

The wiki should probably be edited to list only those talkgroups not already listed. Any changes to existing talkgroups should be submitted to the database via the 'SUBMIT' link found in the left tab.

Sorry about that, but someone jumped the gun...Mike

 

[troymail]

Looks like mostly just the police TGs got added - and from what I recall they came from a fairly reliable (anonymous) source ... seems safe.

Keep in mind that many users are beginning to rely upon the RR to be updated so these updates can get folded into library updates for the "no programming" scanners.

I've seen some (unrealistic) complaints from some people thinking RR and the scanner libraries are supposed to be perfect and constantly up-to-date. They don't seem to realize that "we" are responsible for getting those updates submitted.

 

[ka3jjz]

I'm not questioning the source at all - I know it's good - but as the wiki shows, the system is anything but stable. There are still quite a number of talkgroups that are not yet identified. Some of them are encrypted and we may never know what they really are. It's quite possible more will show up over time.

In other words, we don't have a complete pic yet. It's pretty good, but clearly there are some holes yet that our source either didn't or couldn't report (which is not a knock to him, but he's working under some pressure too, I suspect, not to say too much).

best regards..Mike

 

[troymail]

Agreed -- we may never know what some of the talkgroups are.... like I said though, I think there is more of an effort these days trying to keep the database as complete as possible to make it easy for the folks who who have the "no programming required" software....

IF something is incorrect, I'm certain they'l tell us -- know what I mean?

 

[blantonl]

Has PG county fire completely moved over to the new system? Are the 490 MHz channels still in use for fire?

 

[ka3jjz]

Yeah, now that I'm living in PG county, it would be nice to know. I'm in a first floor condo, though, and no way to get a decent antenna - yet <sigh>.

I suspect all the county police freqs should be marked 'deprecated' but what do I know? best regards..Mike

 

[Dewey]

Has PG county fire completely moved over to the new system?

Not yet... at least from what I am hearing. For those in the area, it is easy to tell just like with PD. The old 490 MHz radios have the GE Star identifiers, and the new radios don't have any audible identifiers.

Are the 490 MHz channels still in use for fire?

Yes.

Dewey

 

[troymail]

Has PG county fire completely moved over to the new system? Are the 490 MHz channels still in use for fire?

495.0125 (Ch. 1) was still active as of last night -- I think others are still active also -- I don't think all fire units have new radios yet.

 

[fd2119]

495.0125 (Ch. 1) was still active as of last night -- I think others are still active also -- I don't think all fire units have new radios yet.

I just got back from my firehouse, and all the UHF-T band channels seem to be operating properly; calls were dispatched as they have been (8A2 or channel 2, for example).

 

[ResQguy]

Fire will not be moving over until the portables are delivered and deployed- like summertime earliest.