From www.olbis.com.au
UHF Radio is a form of ground wave communication that is highly recommended for coastal, outback, warehouse and business communications in Australia. This form of communication is on the FM Band which supplies superior voice quality and less ambient background noise. Definitely a more professional type of communication than the 27Mhz CB. The other beneficial factor with
UHF Radio is the public repeater system throughout Australia. With these repeaters, range of
UHF Radio is improved drastically allowing far more flexible use of the radio. Features like scan, selcall and scrambler mode once again gives the user far greater flexibility for any given situation.
UHF radio is available in handheld or mobile units. Listed below are brief explanations of the main features found in a
UHF radio.
SCAN
Scan is a feature that is extensively used in highway and outback communications for gaining the maximum information on this band of radio. There are two types of scan on each scanning
UHF Radio.
Group scan allows the user to program any channels he or she desires into the scan function. This type of scan is commonly used for gaining the maximum information whilst on the road. A common scan is CH 1-8 and CH 40. Channels one up to eight cover all repeater stations throughout Australia and channel forty is classed as the highway channel.
Open scan allows the user to quickly scan all forty channels continuously. This is most commonly used in an emergency situation when communication is needed with anybody that can help your current situation. Open scan allows the user to quickly scan all forty channels continuously. This is most commonly used in an emergency situation when communication is needed with anybody that can help your current situation. Open scan allows the user to quickly scan all forty channels continuously. This is most commonly used in an emergency situation when communication is needed with anybody that can help your current situation.
SELCALL
Selcall is a feature that is designed more for the business user but can also be a handy feature if you are travelling with more than one vehicle. Selcall stands for Selective Calling System which allows the user to call each individual radio separately or as a group. This system uses coding that is transmitted to the other radios in the group to raise an alarm on the corresponding radio. Thus letting the other user know that he is being contacted. For a more in depth look at this feature please feel free to contact us at Olbis World - Communications Division.
DUPLEX (Repeater Function)
Duplex is the term used for UHF radios for repeater use. Duplex simply means that the radio is transmitting on a different channel than what it receives on. Eg. Channel 1 repeater .The radio will transmit on channel 31 and receive on channel 1. All repeaters in Australia for
UHF radio are located on channels 1- 8 duplex. Any current model
UHF radio has this facility standard.
UHF ANTENNA
The antenna is an extremely under rated piece of equipment to be used with the
UHF Radio. This particular part of your system plays one of the most important roles in your communications package. The right choice of antenna can improve performance considerably and must be chosen carefully. See our accessories page for detailed information about the various models that are available.
HIGHWAY CHANNEL
The highway channel for
UHF Radio is on CH. 40. This is most commonly used by the trucking industry and the general public for highway travelling. Channel 29 is also used by Interstate transport on the Pacific/Princess Highway in NSW.