Monday, October 4, 2021

Network Assisted Communications for HAMs

Network assisted communications for amateur radio operators. Making good use of avaiilable tech.

     Amateur radio repeaters and networks.

As licensed amateur radio operators we have access to stand-alone repeaters as well as repeaters and gateways linked by various forms of network infrastructure. Amateur repeaters and gateways are owned and operated by amateur radio operators using licensed amateur radio bands/frequencies. 

There are thousands of repeaters and gateways into networks exclusively for licensed amateur use around the World. There are amateur radio transponders / repeaters on satellites and even the International Space Station has a VHF/UHF cross band repeater for licensed amateur operators. 

Some repeaters and gateways have backup power so they can remain operational during times of power failure, but the vast majority do not. The range and coverage provided by amateur repeaters and gateways is limited and there are large areas where there are no amateur communication services available. 

    Extending coverage using existing 'non-amateur' infrastructure.

The largest network of radio gateways in the World with the greatest coverage available to the public has to be the global mobile telephone/data network. It is comprised of millions of 'cell tower' sites around the Globe with over 1.5 million in the UK alone. Each cell tower site is effectively a multi user radio gateway installation linked into Global network communications infrastructure. Some people seem to think using the cellular phone/data networks is 'not radio communications' but they are indeed mistaken. The cellular networks operate using radio frequency energy propagated through free space, which by definition is most certainly radio communication. It is correct to say this is not technically Amateur Radio as it does not use licensed amateur radio fequencies/bands but it can be put to good use by amateur radio operators to communicate to/from locations where there is no access to licensed amateur radio repeaters or gateways. The vast majority of cell sites are operated as primary communication systems with full backup power and multiple network connections providing reliable global communications most of the time. 

Of course in times of major disasters or when the network infrastructure fails for some reason an independant self powered amateur radio station will often become the primary means of emergency  communication, as long as the operator has prepared for such an event and has backup power available.

    Make good use of the technologies available.

It makes perfect sense for amateur radio operators to make use of this vast network of supported infrastructure to communicate when they are in areas that are beyond amateur repeater / gateway coverage or have restrictions that prevent them erecting antennas and using amateur radio equipment.

This is where mobile phones, network radios, tablets, laptops and other portable devices connected to the Global communications networks via cell tower sites and WiFi access points or hotspots can be used with a wide range of software / mobile device apps allowing the user to stay connected to the amateur radio networks gateways and repeaters around the World. 

Using software / applications such as Echolink, Peanut, IRN(teamspeak), DroidSTAR(Android & iOS), DudeSTAR(PC), DVswitch, and many others the licensed amateur operator can easily be connected to amateur networks and communicate with other licensed hams using a wide range of equipment almost anywhere on Earth. The coverage is expanding rapidly with the deployment of satellite internet  

    Communicating with multiple modes across multiple networks.

One of the most innovative networks that provides inter-linked communications between licensed amateurs using a wide range of modes, networks and equiuipment is the FreeSTAR network. This brings together a diverse range of technologies such as DMR, Dstar, YSF, WiresX, NXDN,  P25, IAX, M17 and network linked analogue repeaters and gateways. 

 Have a look at freestar.network for more informations and details of how to connect with whatever equipment You have handy.