ptt over cellular mast

Radio Electromagnetic Spectrum

Radio electromagnetic spectrum refers to the range of frequencies of electromagnetic radiation that can be used for radio communication. The spectrum is divided into several bands, each with different characteristics and uses. Some examples of bands in the radio electromagnetic spectrum include: Very Low Frequency (VLF): 3-30 kHz, used for communication with submarines Low Frequency …

Walkie Talkie Antenna

VHF Walkie-talkies

You may have come across the term VHF in relation to walkie talkie hire, and wondered what it means. VHF stands for Very High Frequency, and is the the frequency range between 30 Mhz (Megahertz) and 300 Mhz. Choosing between VHF & UHF (Ultra High Frequency) is important when hiring two way radio walkie talkies …