GME TX670TP - Manual (Page 3)

TX670TP INSTRUCTION MANUAL PAGE 3
The TX670 is a radio transmitting device.
• When transmitting, keep the antenna more than 25 mm from
any part of the head or body.
• Do not transmit near electrical blasting equipment or in
explosive atmospheres.
• Do not allow children to operate a radio transmitter unsupervised.
WARNING - sAFeTY INFORMATION
IMPORTANT INFORMATION
cONceRNING UHF cB RADIO
The use of the Citizen Band radio service is licensed in Australia by
the ACMA Radiocommunications (Citizens Band Radio Stations) Class
Licence and in New Zealand by the Ministry of Economic Development
New Zealand (MED). A General User Radio Licence for Citizens Band
radio and operation
is subject to conditions contained in those
licences.
The class licence for users and equipment operating in the CB/PRS
477 MHz band has been amended. This radio meets the new 80
channel standard.
In simple terms the same amount of spectrum is available; however,
radio transceivers can now operate in a narrower bandwidth and
hence use less spectrum. These radios are generally referred to as
narrowband or 12.5 kHz radios. By using 12.5 kHz channel spacing
instead of 25 kHz, the 40 channels originally allocated can now
expanded to 80 channels thereby doubling the channel capacity
and relieving congestion in the UHF CB/PRS band.
Original 40 channel wideband Radios will continue to operate on the
original 40 channels, however they will not be able to converse on
the newer channels 41 – 80. The newer narrowband radios will be
able to converse with all older 40 channel wideband radios on all
channels 1 to 40 as well as the newer channels allocated from 41
to 80.
The mixing of narrowband and wideband radios in the same spectrum
can cause some possible operating issues of interference and varying
levels of received volume.
PossiBle issUes
When a new narrowband radio receives a transmission from an
older wideband radio the speech may sound loud and distorted –
simply adjust your radio volume for best performance.
When an older wideband radio receives a signal from a new
narrowband radio, the speech may sound quiet - simply adjust your
radio volume for best performance.
Depending on how close your receiving radio is to another
transmitting radio, there can be interference from the transmitting
radio if it is using a channel adjacent to the channel you are
listening to. Simply try going up or down a few channels from the
currently selected channel.
The above situations are not a fault of the radio but a symptom of
operating wideband and narrowband radios in the same bandwidth.
This possible interference will decrease over time as the population
of wideband radios ages and decreases.
Further information and updates are available from the
Australian Communications and Media Authority (ACMA) at:
www.acma.gov.au and the Ministry of Economic Development
(MED), Radio Spectrum Management at: www.rsm.govt.nz
The ACMA has allocated channels 5/35 for emergency use only.
Channel 5 is the primary Simplex Emergency Channel. Where a
Channel 5 repeater is available, you should select Duplex on CH 5.
NOTE: Channel 35 is the input channel for the Channel 5 repeater
therefore Channel 35 should also not be used for anything other than
emergency transmissions.
TeleMeTRY cHANNels
ACMA regulations have allocated channels 22 and 23 for telemetry
only applications and have prohibited the transmission of speech
on these channels. Consequently the TX670 has a transmit-inhibit
applied to channels 22 and 23.