MB7INM 2m Information
MB7INM is a simplex 2m gateway located in Oswaldtwistle, Lancashire.
Operating
MB7INM 2m is permanently connected to several North Western Repeater Group repeaters and gateways, GB3BY Chorley, GB3EG Wigan, GB3FC Blackpool, GB3PN Lytham and MB7INM in Oswaldtwistle.
Listen Live.
You can listen to audio streamed from MB7INM 2m using the audio control below. Click play to start.
Repeater Tones
Several tones are used by the repeater to indicate its operational states.
License details.
| Callsign | MB7INM |
| Transmitter Frequency | 145.2875 MHz |
| Receiver Frequency | 145.2875 MHz |
| CTCSS Access Tone | 82.5Hz on Receive and Transmit |
| Modes | FM-Narrow 2.5KHz deviation |
| Antenna | Vertical Dipole |
| Antenna Height Above Ground | 10m |
| Maximum Transmitter Power PEP | 5W, 7 dBW |
| NOV Holder | M0NFI |
Radio Settings.
To use a simplex gateway you need to listen and transmit on the same frequency, MB7INM 2m transmits and receives on 145.2875MHz and requires a CTCSS tone of 82.5Hz.
MB7INM 2m is permanently connected to a group of local repeaters, GB3BY Chorley, GB3EG Wigan, GB3FC Blackpool and GB3PN Lytham.
All simplex gateway nodes are licensed for narrow deviation only so please make sure your radios are set to narrow. If you operate your radio in wide deviation mode you could cause distortion and your signal may be dropped by the gateway radio. Leave a gap of four seconds between overs to allow all linked nodes to reset and for anyone else to join in. Before transmitting into a gateway please listen for a while to make sure it's not in use. Two people can use the same gateway to talk with other users but as it's only simplex you will be hearing the other local user directly from their radio to yours.
The tones from the gateway assist with determining who is operating from where.
When you transmit into the gateway and it's connected to another node, as you unkey, the gateway will reply with a morse K (dah-dit-dah) with a higher frequency of 1200Hz.
When you transmit into the gateway and it isn't connected to another node, as you unkey, the gateway will reply with a morse K (dah-dit-dah) with a lower frequency of 800Hz.
When a remote user on the network ends transmission you will hear a morse I ( dit-dit).
Coverage Prediction.
