Logic Trunked Radio (LTR)
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 150 MHz,470 MHz |
| Frequency Range | 150 MHz - 470 MHz |
| Mode | NFM |
| Modulation | FSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 12.5 kHz,25 kHz |
| Location | |
| Short Description | Logic Trunked Radio, is an analog trunked radio format developed by EF Johnson Company. |
| I/Q Raw Recording | — |
| Audio Sample | |
Unlike most Trunked radio formats, including analog variants such as Passport, MPT1327, etc. LTR does not have a control channel. However, each repeater has its own controller and is required to report to a master controller.
== Audio Samples ==
decoded is:
- OSW: 0 05 05 004 03 3D Area=0 COMM ID=5-4 on Ch05 FREE=3 LCN=5 - OSW: 0 05 05 004 01 3A COMM ID=5-4 on Ch05 FREE=1 LCN=5 - OSW: 0 05 05 004 02 7E COMM ID=5-4 on Ch05 FREE=2 LCN=5 - OSW: 0 05 05 004 03 3D COMM ID=5-4 on Ch05 FREE=3 LCN=5 - OSW: 0 05 05 004 01 3A COMM ID=5-4 on Ch05 FREE=1 LCN=5 - OSW: 0 05 05 004 02 7E COMM ID=5-4 on Ch05 FREE=2 LCN=5 - OSW: 0 05 05 004 03 3D COMM ID=5-4 on Ch05 FREE=3 LCN=5 - OSW: 0 31 05 004 05 06 END ID=5-4 LCN=5 - OSW: 0 31 05 004 05 06 END ID=5-4 LCN=5 - OSW: 0 31 05 004 05 06 END ID=5-4 LCN=5
Every 10 seconds or so, a blip is transmitted to let the subscriber units know that the system is there (recorded in NFMNarrowband Frequency Modulation).
Decoding Software[edit]
- Hobby Level Software
