Hello all,
In recent times have received several submissions for talk groups on the National Sciences and Technology LTRs in the LA Basin.
Over time is become increasingly clear that the listed data in the Db, particularly system frequencies and LCNs did not match current configurations.
In order to get a better feel for what’s going on, I received a compilation list of all licensed frequencies for National Science from a member. (posted at bottom).
With the help of UniTrunker I started mapping the systems. This pretty much confirmed that much of the Db info has indeed changed, and looks like there are additional systems out there which we do not have in the Db.
Additionally I’ve noted a large number of TGs listed in the Db (eg Ambulance providers) are either no longer valid, or have transitioned away from the system they are listed under. I suppose once we have all the various system frequencies/LCN order clarified, we can better confirm TG usage as well.
Anyhow, below is what I have been able to map in the last few days for systems we have in the Db. I’ve listed LCN configuration shell per UniTrunker and the confirmed frequencies I've been able to match so far.
Any help confirming and filling in the LCN/frequency order would be appreciated!
Catalina (might actually be located in Rancho Palos Verdes per FCC license info)
LCN 4 – 471.925
LCN 5 -
LCN 6 -
LCN 9 -
LCN 12 -
LCN 13 -
Los Angeles
10 – 472.7875
13 - 472.150
14 – 471.425
16 – 472.750
18 – 472.800
20 – 472.850
Lukens #1
14 - 471.7875
15 – 471.9875
16 - 472.0375
18 -
19 –
Lukens #2
1 – 472.325
2 –
3 –
4 –
5 –
7 –
Luke/Oat/Sierra
2 – 471.350
3 – 471.450
4 – 471.600
6 – 472.575
7 – 472.600
Sunset
8 –
14 – 471.325
15 –
Santiago
2 –
4 – 452.300
5 – 452.325
7 –
10 –
Oat
No Activity noted
Sierra #1
1 –
2 –
3 – 472.100
4 –
6 –
7 –
14 – 471.4125
16 –
18 – 472.975
Sierra #2
2 – 471.225
4 – 471.4375
5 – 471.525
7 – 471.775
New System #1
5 –
9 – 471.5375
11 – 472.1125
19 –
20 –
New System #2
6 – 471.4625
15 –
16 –
18 –
19 -
Below list of all Licensed Freq to National Science and Technology. Not all are exclusive to them and there might be other users in the LA Basin. Additionally some are licensed as conventional business (IG), yet being utilized as in the trunked LTR system.
452.3
452.325
452.375
452.425
452.625
452.65
452.7
452.75
452.825
452.85
452.875
470.725
470.95
471.1625
471.2125
471.225
471.2375
471.25
471.325
471.35
471.4125
471.425
471.4375
471.45
471.4625
471.5
471.5125
471.525
471.5375
471.6
471.6125
471.625
471.65
471.7625
471.775
471.7875
471.8
471.8125
471.825
471.9
471.925
471.95
471.9625
471.975
471.9875
472
472.025
472.0375
472.05
472.0625
472.075
472.0875
472.1
472.1125
472.125
472.1375
472.15
472.175
472.275
472.3
472.3125
472.325
472.3375
472.35
472.375
472.4
472.4125
472.475
472.5
472.5125
472.525
472.575
472.600
472.6125
472.625
472.675
472.700
472.75
472.7625
472.775
472.7875
472.8
472.8375
472.85
472.8625
472.875
472.8875
472.9
472.950
472.9625
472.975
452.3 IG
452.325 IG
452.375 IG
452.425 IG
452.625 IG
452.65 IG
452.7 IG
452.75 IG
452.825 IG
452.85 IG
452.875 IG
471.2125 IG
471.2375 IG
471.2625 IG
471.6125 IG
471.6125 IG
471.7875 IG
471.8125 IG
471.9875 IG
472.0375 IG
472.0625 IG
472.0875 IG
472.1125 IG
472.1375 IG
472.1375 IG
472.1625 IG
472.3125 IG
472.3375 IG
472.3875 IG
472.4125 IG
472.5125 IG
472.6125 IG
472.7625 IG
472.7875 IG
472.8125 IG
472.8625 IG
472.8625 IG
472.8875 IG
472.9125 IG
=
In recent times have received several submissions for talk groups on the National Sciences and Technology LTRs in the LA Basin.
Over time is become increasingly clear that the listed data in the Db, particularly system frequencies and LCNs did not match current configurations.
In order to get a better feel for what’s going on, I received a compilation list of all licensed frequencies for National Science from a member. (posted at bottom).
With the help of UniTrunker I started mapping the systems. This pretty much confirmed that much of the Db info has indeed changed, and looks like there are additional systems out there which we do not have in the Db.
Additionally I’ve noted a large number of TGs listed in the Db (eg Ambulance providers) are either no longer valid, or have transitioned away from the system they are listed under. I suppose once we have all the various system frequencies/LCN order clarified, we can better confirm TG usage as well.
Anyhow, below is what I have been able to map in the last few days for systems we have in the Db. I’ve listed LCN configuration shell per UniTrunker and the confirmed frequencies I've been able to match so far.
Any help confirming and filling in the LCN/frequency order would be appreciated!
Catalina (might actually be located in Rancho Palos Verdes per FCC license info)
LCN 4 – 471.925
LCN 5 -
LCN 6 -
LCN 9 -
LCN 12 -
LCN 13 -
Los Angeles
10 – 472.7875
13 - 472.150
14 – 471.425
16 – 472.750
18 – 472.800
20 – 472.850
Lukens #1
14 - 471.7875
15 – 471.9875
16 - 472.0375
18 -
19 –
Lukens #2
1 – 472.325
2 –
3 –
4 –
5 –
7 –
Luke/Oat/Sierra
2 – 471.350
3 – 471.450
4 – 471.600
6 – 472.575
7 – 472.600
Sunset
8 –
14 – 471.325
15 –
Santiago
2 –
4 – 452.300
5 – 452.325
7 –
10 –
Oat
No Activity noted
Sierra #1
1 –
2 –
3 – 472.100
4 –
6 –
7 –
14 – 471.4125
16 –
18 – 472.975
Sierra #2
2 – 471.225
4 – 471.4375
5 – 471.525
7 – 471.775
New System #1
5 –
9 – 471.5375
11 – 472.1125
19 –
20 –
New System #2
6 – 471.4625
15 –
16 –
18 –
19 -
Below list of all Licensed Freq to National Science and Technology. Not all are exclusive to them and there might be other users in the LA Basin. Additionally some are licensed as conventional business (IG), yet being utilized as in the trunked LTR system.
452.3
452.325
452.375
452.425
452.625
452.65
452.7
452.75
452.825
452.85
452.875
470.725
470.95
471.1625
471.2125
471.225
471.2375
471.25
471.325
471.35
471.4125
471.425
471.4375
471.45
471.4625
471.5
471.5125
471.525
471.5375
471.6
471.6125
471.625
471.65
471.7625
471.775
471.7875
471.8
471.8125
471.825
471.9
471.925
471.95
471.9625
471.975
471.9875
472
472.025
472.0375
472.05
472.0625
472.075
472.0875
472.1
472.1125
472.125
472.1375
472.15
472.175
472.275
472.3
472.3125
472.325
472.3375
472.35
472.375
472.4
472.4125
472.475
472.5
472.5125
472.525
472.575
472.600
472.6125
472.625
472.675
472.700
472.75
472.7625
472.775
472.7875
472.8
472.8375
472.85
472.8625
472.875
472.8875
472.9
472.950
472.9625
472.975
452.3 IG
452.325 IG
452.375 IG
452.425 IG
452.625 IG
452.65 IG
452.7 IG
452.75 IG
452.825 IG
452.85 IG
452.875 IG
471.2125 IG
471.2375 IG
471.2625 IG
471.6125 IG
471.6125 IG
471.7875 IG
471.8125 IG
471.9875 IG
472.0375 IG
472.0625 IG
472.0875 IG
472.1125 IG
472.1375 IG
472.1375 IG
472.1625 IG
472.3125 IG
472.3375 IG
472.3875 IG
472.4125 IG
472.5125 IG
472.6125 IG
472.7625 IG
472.7875 IG
472.8125 IG
472.8625 IG
472.8625 IG
472.8875 IG
472.9125 IG
=