CB or not CB?

Today's UHF transceivers are much more than glorified walkie talkies

Modern CB (citizen band) transceivers have become so affordable and user-friendly, it's easy to take their power and potential for granted. This class of two-way radios is the successor to HF CB, which still operates in Australia on 40 channels in the frequencies of 26.965-27.405MHz.

Learn the regulations
UHF transceivers operate on 80 preset channels around the vicinity of 477MHz. They are class-licenced by ACMA (Australian Communications and Media Authority), which means no licence fee needs to be paid, but users still need to abide by the regulations governing their operation. This includes specific roles for designated channels; for example, channels 5 and 35 are for emergency use only.

CB is still relevant
There is a diverse variety of UHF transceivers available, and even the economical 0.5W twin-packs have an open-field range of up to 6km. Despite the ubiquity of mobile phones, these radios are still incredibly useful in diverse scenarios, ranging from talking to family members while camping, to communicating with colleagues on a worksite.

UHF CBs have a maximum transmission power of 5W, which allows formidable range. This can also be extended further by using an in-dash unit with an external antenna. Some even offer Bluetooth® functionality.

VHF Marine
A closely related class of two-way radio communication is VHF Marine, a band of frequencies allocated for maritime activities. Even if you're just taking a dinghy out for a fishing trip, keeping a VHF Marine radio with you is an important safety precaution. It could not only get you out of trouble, but also enable you to render assistance to others nearby who might need your help.


- August 2019

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