Delcom Systems have put together a chart below outlining the different types of connector and radio compatibility. Just match the diagram to that of your connection socket and this will show you at a glance, which accessory you need.

Have you ever wondered what an IP rating actually means and how to work it out? We have designed a quick find table to help you understand what the IP rating actually means. IP (Ingress Protection) ratings are used to determine the level of seal of a particular electrical enclosure / appliance, set out by international standard EN 60529 (British BS EN 60529:1992, European IEC 60509:1989). Based on the IP rating, you can determine how efficient a particular product will be, when used in challenging environments.

“Intrinsically Safe” (IS) is a protection standard for safe operation of electronic equipment in explosive environments. The concept was originally developed for safe operation of process control instrumentation in hazardous areas, particularly around flammable and explosive products. ATEX is named after the French 'ATmosphère EXplosif'. All the 24 member countries of the European Union (plus Norway, Iceland and Liechtenstein) are subject to the directives. Manufacturers, who comply with its provisions and affix the CE and EX marking, are able to sell their equipment anywhere in the European Union. 

License free radios are two way radios which transmit and receive on 8 UHF frequencies. Often referred to as PMR446, these frequencies were allocated for general use by Ofcom. Licence free radios are low cost and are popular with leisure users (hence the term 'leisure radios').

Two way radios use one of 2 bands. These are known as Ultra High Frequency (UHF) radio and Very High Frequency (VHF) radio. Each band has it's own pro's and con's, which we'll try to explain in this article.

2 way radios (sometimes referred to as 'walkie talkies') communicate using radio waves. Radio waves can be sent on different frequencies and in order to get radios to talk to each other they must be using the same frequency.

Private mobile radios (licensed PMR) operate on one of 2 frequency bands. The UK licensed radio bands consist of VHF and UHF radio frequencies. Both UHF and VHF radio frequencies (except those which fall into the licence free UHF PMR446 band) are are issued and managed by the UK office of communications - Ofcom. In order to use licensed equipment, and/or transmit on licensed two way radio frequencies, you will need to hold a licence that has been issued by Ofcom.