MB7INM is a simplex 2m gateway located in Oswaldtwistle, Lancashire. MB7INM is permanently connected to the North West Allstar Group, please click here for more information on the NWAG website.
You can listen to audio streamed from MB7INM using the audio control below. Click play to start.
|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 Height Above Ground||10m|
|Maximum Transmitter Power PEP||1 dBW, 1.25W|
To use a simplex gateway you need to listen and transmit on the same frequency, MB7INM transmits and receives on 145.2875MHz and requires a CTCSS tone of 82.5Hz.
MB7INM is permanently linked to North West Allstar Group. North West Allstar Group is a local group of repeaters and gateways in the UK. Please see the North West Allstar Group website for more information by clicking here.
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 repeater 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 repeater 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).