ToooAir TA-680, Руководство пользователя, Страница: 14 / 15

10
ACMA Standard
The use of the Citizen Band radio service is licensed in Australia by the ACMA Radio communications
(Citizens Band Radio Stations) Class Licence and in New Zealand by the Ministry of Economic Development
(MED) General User Radio Licence (GURL) for Citizens Band Radio, and operation is subject to conditions
contained in those licences.
In Australia there are numerous repeater sites that input/receive channels for long distance
communication between sites. The repeaters work by taking input on channels 31 to 38 and 71 to 78, and
re-broadcast the signal on channels 1 to 8 and 41 to 48, to extend the range of the communication. While
operating in Australia certain transmissions must meet the ACMA standard they are as follows:
•
CB transmitter shall not be operated on UHF emergency channels 5 and 35.
•
No voice transmission is permitted on data (telemetry/telecommand) channels 22 and 23.
•
Before transmitting on a channel always listen in on the channel selected to ensure it is not
already being used before transmitting.
•
Avoid operation on locally used repeater input channels 31 to 38 and channels 71 to 78 or
locally used repeater receiving channels 1 to 8 and channels 41 to 48, unless long-distance
communication via the repeater facility is specifically required.
•
Transmissions on channels 61 to 63 are inhibited and are reserved for future allocation.
The TA-680 meets the ACMA standard and will inhibit voice operation on channels 22 and 23 and inhibit all
operations on channels 61 to 63.
In the event that additional telemetry/telecommand channels are approved by the ACMA, these channels
shall be added to those currently listed where voice transmission is inhibited.
The TA-680 operates on narrowband (2.5 kHz deviation) 12.5 kHz channel spacing. This can lead to
potential operational issues with older equipment still operating on wideband (5.0 kHz deviation) 25 kHz
channel spacing. The original 40 channels were designed for wideband channel spacing and with the new
technology narrowband channel spacing has halved the channel spacing which is how we now have 80
channels. Older equipment still operating on wideband will only operate on original 40 channels and could
potentially interfere with narrowband 41 to 80 channels which sit inside the original 40 channel band. Due
to the deviation differences between the two channel spacings narrowband and wideband there will be
volume differences of the communication between the old equipment and the new equipment. A list of
currently authorized channels can be obtained from the ACMA website in Australia and the MED website in
New Zealand.
Important Notice