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MB7ALF England flag England

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Welcome to the MB7ALF 70cms simplex internet gateway. My name is Craig Wilson, M0FLF and I am the NOV holder for MB7ALF

MB7ALF is available in and around Hornsea in East Yorkshire.

There are three ways to connect to MB7ALF, you can access the gateway via RF. Just tune to 430.0125MHz - NFM - CTCSS 88.5, you can use AllStar (either using the web tranciever or from another AllStar node) by dialing 42483. Alternatively, you can also use Echolink on a PC, MAC, Smartphone or Tablet and search for MB7ALF-L

MB7ALF is usually connected to the HUBNet operated by Steve, M0HOY. For more information please take a look at the HUBNet website here http://www.hubnetwork.uk/


A few things to remember when using a VOIP gateway

Keep your overs to under 3 minutes or you may time out

Leave a 2 to 3 second gap between overs to allow all the connected nodes to reset and give other users a chance to break in.

Never connect 2 or more large networks together.


MB7ALF has complete coverage over Hornsea and the surrounding villages but can be heard up to 25 miles away depending on the terrain


The hardware used to create MB7ALF is really quite surprising

A Raspberry Pi 2 (eBay £30). A modified Baofeng bf888s (eBay £10). A modified USB sound fob (eBay £3). An Xbox 360 power supply (second hand £5) and a power transformer (eBay £2)

The antenna is a homebrew 70cms vertical dipole mounted at around 20 feet and the output power is just half a Watt.

Here is a short video I made when I first discovered AllStar gateways. A few things have changed but the system is pretty much still the same


I was asked to do a talk at the local Amateur Radio club, this is the video. I try to explain in some detail what a VOIP gateway is and what you need to build one


If you don't feel confident enough to build a node radio yourself, preconfigured nodes can be bought for as little as £100 from either Peter (G7RPG) or Alan (M0AQC). both work extremely well and require just power and internet access. Any 70cms FM hand held can be used to access them allowing you to use the system to chat all over the world using something as cheap and simple as a Baofeng bf888s available for as little as £8.50

Contrary to popular belief, any UK license holder including Foundation can own and operate a private internet voice gateway, you will have to hold at least the Intermediate license to be able to add Echolink to it but anyone can have one for private use. If you want to allow other licensed operators to use it, you must apply for a Notice of Variation

Also contrary to popular belief, an Intermediate license holder can apply for and hold an NOV for an internet gateway

With just a simple setup, you have access to thousands of Amateur Radio operators from across the world. There are a few very large networks to connect to across all time zones so you can always find someone to chat to and often, they are like minded technical types who like to talk radio

Thank you for looking MB7ALF up. I hope to hear you connected soon


73 Craig de M0FLF


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7939544 Last modified: 2017-03-02 20:26:44, 7721 bytes

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