Been here on the Yard all day, all NDW PD North is in the clear.
Also, PFPA is operating in the clear!
V/r,
spanner
Also, PFPA is operating in the clear!
V/r,
spanner
The JNCR System
- Thread starter Chris52
- Start date
Chris52
Member
It seems the Germantown site comes and goes when listening to NDW PD/FD.
Yes. 9A (TG 650) is active today on FtDtk Forest Glen. It seems to be active on this site a lot.
Chris52
Member
Very interesting …. Thank you
Can somebody know the right ASTRO 25 Channel ID for this system?
BM82557
Member
Same for me +10 --
Network: 580A0.005 ; JNCR Sysid 005
Bandplan #0: Base=380. Offset=+10 Spacing=12.5 BW=12.5
Bandplan #8: Base=380. Offset=+10 Spacing=12.5 BW=12.5 Slots=2
Site: 1.1 NAC=005 ; Raven Rock/Site R
Neighbor: 580A0.005-2.2
Neighbor: 580A0.005-4.4 ; Mt Quirauk
Neighbor: 580A0.006-1.1 ; Fort Detrick
Neighbor: 580A0.015-8.8 ; Camp David
Network: 580A0.015 ; JNCR Sysid 015
Bandplan #0: Base=380. Offset=+10 Spacing=12.5 BW=12.5
Bandplan #8: Base=380. Offset=+10 Spacing=12.5 BW=12.5 Slots=2
Site: 8.8 NAC=06B ; Camp David
Neighbor: 580A0.005-1.1 ; Raven Rock/Site R
Neighbor: 580A0.005-4.4 ; Mt Quirauk
Neighbor: 580A0.006-1.1 ; Fort Detrick
What's with the TDMA? Is this to do with future upgrades?
Indeed. What is the meaning of "TDMA" in the band plan? The system is listed as P25 Phase 1..
P25 Channel ID Table
P25 Channel ID Table
| CH ID | Type | Base (MHz) | Spacing (KHz) | Transmit Offset (MHz) |
|---|---|---|---|---|
| 1 | FDMA | 380.00000 | 12.5 | +10 |
| 9 | TDMA | 380.00000 | 12.5 | +10 |
The Raven Rock site (005-01-001) was reporting a neighbor site 005-02-002 using 385.025 as its cch. Didn't there used to be an entry for this site in the RRDB? It was theorized that this is a site used inside the mountain.
BM82557
Member
- Joined
- Dec 19, 2002
- Messages
- 2,410
that was back when I got into an argument with several that there was that Site 2 on the same frequencies. I heard both--using the same control channel with switching back-and-forth which site number I saw. It was disputed and apparently removed. I conjectured it covered inside the mountain.
Probably been asked before, but I'm seeing talkgroups like below with 2 numbers on them, guessing they are just patches?
385.175000 Joint National Capital Region / Joint Base Andrews Unknown TGID:25173 9645 P25 1 25173 NFM 3 P25 Trunk
385.175000 Joint National Capital Region / Joint Base Andrews Unknown TGID:25173 9645 P25 1 25173 NFM 3 P25 Trunk
Last edited:
ecps92
Member
What Software or Radio are you seeing this format in?
that will help in a more accurate reply
Since 25173 is shown twice, my assumption is that is the (TG) Talkgroup
and the 9645 might be the Radio ID (RID)
that will help in a more accurate reply
Since 25173 is shown twice, my assumption is that is the (TG) Talkgroup
and the 9645 might be the Radio ID (RID)
9645 is a tg - it is used by older infrastructure / subscribers that are still in service after the NDW dispatch function was consolidated.
ecps92
Member
hence asking what the OP was seeing it from. (Radio/Software) to get context
Guess it is a patch then between the old and the new ?
Guess it is a patch then between the old and the new ?
Proscan software
It is a patch.
