What is the difference between SW, MW and FM radio?

Shortwave radio has a huge range – it can be received thousands of miles from the transmitter, and transmissions can cross oceans and mountain ranges. This makes it ideal for reaching nations without a radio network or where Christian broadcasting isn’t possible. Put simply, shortwave radio overcomes boundaries, whether geographical or political. SW transmissions are easy to receive, too: even cheap, simple radios are able to pick up a signal.

In areas of Northeast Africa where religious broadcasting is banned inside the country, our local partners can create audio content, send it out of the country and have it beamed back in via a SW transmission without risk of prosecution. Yemen is a nation where Christians make up just 0.08% of the population and experience persecution because of their faith. Our partner uses SW radio to broadcast Reality Church – a weekly 30 minute feature that supports Yemeni believers in local dialect.

A powerful way to reach marginalised communities across borders, shortwave can reach a remote areas, support Christians who are facing persecution and allow people to hear about the love of Jesus.

Medium-wave radio is generally used for local broadcasts and is perfect for rural communities. With a medium transmission range (hence the name!), it can reach isolated areas with a strong, reliable signal. Medium-wave transmissions can be broadcast through established radio networks – where these networks exist.

In northern India, local cultural beliefs leave women marginalised and many are confined to their homes. To women in this position, transmissions from our partner, Women’s Initiative, using an established radio network are a crucial link with the outside world. The programmes cover topics like education, healthcare guidance and input on women’s rights, prompting conversations around spirituality with women who contact the station. In this context, radio is bringing God’s message of hope and empowerment to women listening at home.

For a community-based radio station, FM is king! FM provides a short-range signal – generally to anywhere within sight of the transmitter, with excellent sound quality. It can typically cover the area of a small city or large town – making it perfect for a radio station focusing on a limited geographical area speaking into local issues. While shortwave and medium-wave stations can be expensive to operate, a license for a community-based FM station is much cheaper.

Afno FM, Feba’s partner in Nepal, provides vital healthcare advice to the local communities in Okhaldhunga and Dadeldhura. Using FM allows them to put across important information, perfectly clearly, to targeted areas. In rural Nepal, there is widespread suspicion of hospitals and some common medical conditions are seen as taboo. There is a very real need for well-informed, non-judgmental health advice and Afno FM helps meet this need and opens up opportunities to share about Jesus.

Internet-based stations are quick and easy to set up, sometimes taking as little as a week to get up and running! It can cost a lot less than regular transmissions and because the internet has no borders, a web-based radio audience can have global reach. One drawback is that this form of radio is reliant on internet coverage and the listener’s access to a computer or smartphone.

In a global population of 7.2 billion, three-fifths, or 4.2 billion people, still do not have regular access to the internet. Internet based community radio projects are therefore not currently suitable for some of the poorest and most inaccessible areas of the world. However for our partner Voice of Egypt, who are reaching young people in major cities, it’s a powerful tool to share about God’s love.