User's Manual
Table Of Contents
- Owner’s Manual
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- Accessories
- To enhance the use of your ATT650/655 series GMRS transceiver, depending on model and included accessories, several other approved accessories such as headset, wall battery trickle charger, along with replacement neck strap, battery compartment door, and
- Battery installation
- Automatic Power Saver Mode
- Battery charging
- Neckstrap and belt-clip
- Applying for An FCC License
- Display panel and icons
- Equipment controls
- Equipment functions
- Notes for good communication
- Care and maintenance
- Equipment specifications
- Radio channel frequency table
- CTCSS tone frequency table
- CAUTION
- Troubleshooting
- Warranty
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- One Year Limited Warranty
- Battery life Alkaline : 1.5 W (14hr, 1000mA - 5:5:90)
Ni-MH : 1.0 W (10hr, 600mA - 5:5:90)
- Dimensions(H/W/D) 160.0mm / 56.0mm / 30.6mm
- Weight 150g (with batteries)
Transmitter
- Carrier power 1.5 Watts (1.5 W-Alkaline, 1.0 W-Ni-MH )
- Emission type F3E
- Frequency deviation ±2.5 kHz (w/tone)
- Audio distortion <5% (1kHz 60% modulation)
- Hum & Noise w/CCITT >-40 dB Min. (1kHz 60% modulation)
- Frequency tolerance ±5 ppm (-20 +60)
Receiver
- Receive sensitivity -119dBm (12dB SINAD)
- Squelch sensitivity -122dBm (12dB SINAD)
- Maximum audio output power 200mW
- Selectivity <-50 dB (12.5 kHz)
- Audio distortion <5% Max. (1kHz 60% modulation)
- Hum & Noise w/CCITT >-40 dB Min. (1kHz 60% modulation)
Troubleshooting
Problem Possible Cause Corrective Action
Weak batteries Charge or replace batteries No transmission
while pressing the
PTT button
Incorrect battery polarity Install the batteries in the
directions indicated on battery tray
Weak batteries Charge or replace batteries
Channel and privacy code not
Set the same as target transceiver
Adjust the transceiver’s settings to
match those settings of the target
transceiver
Volume level too low Increase volume level
PTT button inadvertently
depressed
Release PTT button
Excessive radio interference
on a particular channel
Channel to a different channel
Weak or no signal
Received
Obstruction of radio signal
Avoid operating in or near large
buildings or vehicle
Transceiver
Beeps, but will
not turn on when
Power button is
pressed
Batteries extremely discharged Charge or replace batteries
Reception of
unwanted signals
CTCSS privacy mode not on Turn on the CTCSS privacy mode
and set code number to match the
setting of the target transceiver