GB1
” User manual
PMR446 TRANSCEIVER |
Index
Content of the packaging 3
Coverage/range 3
Warnings 3
Main features 4
Programming software (optional) 4
Description of the controls 5
Display 5
Radio (Front side) 6
Rear side 7
Microphone 7
Functions 8
Turning on/off 8
Channel selection 8
Transmission and reception 8
‘FLIP’ function 8
Monitor 9
Reset 12
Technical specifications 13
RTTE 17
GB1 instruction guide | 1
MIDLAND GB1 is an extremely compact PMR446 mobile transceiver designed for mounting in modern vehicles with limited space. GB1 is free use
in almost all European countries.
2 | GB1 instruction guide
Content of the packaging
• MIDLAND GB1 transceiver
• Mounting bracket
• Antenna with cable
• Microphone
• Microphone holder
• Screws
• Cigarette lighter power cable
Coverage/range
The maximum range depends on terrain condition and is obtained during use in an open space.
The only limitation to maximum possible range are environmental factors such as blockage caused by trees, buildings, or other obstructions.
Inside a car or a metallic constructions, the range can be reduced. Normally the coverage in the city, with buildings or other obstructions is
about 1 or 2 Km. In open space but with obstructions like trees, leaves
or houses the maximum possible range is about 4-6 Km. In open space,
without obstructions and in sight, like for example in mountain, the coverage can be more than 12 Km.
Warnings
Do not open the radio for any reason! The radio’s precision mechanics
and electronics require experience and specialized equipment; for the
same reason, the radio should under no circumstances be realigned as
it has already been calibrated for maximum performance. Unauthorized
opening of the transceiver will void the warranty.
GB1 instruction guide | 3
Main features
• Power: 500mW
• Operating temperature: from -20° to +55°C
• Flip function
• 50 CTCSS tones and 104 DCS codes (normal) + 104 DCS codes (inverted) that can be enabled through the optional programming software
• Monitor function
• SCAN function
Programming software (optional)
Thanks to the programming software PRG-GB1, it is possible to increase
the performance of your radio or to reduce its functionality by disabling
some of the default features (CTCSS, TOT...).
For further information, please consult the Programming software manual.
Any attempt to change frequencies or output power of the radio invalidates the approval.
4 | GB1 instruction guide
Description of the controls
Display
A
G
B
C
F
D
E
A This icon appears when the radio receives a signal or when the
squelch is opened;
B Indicates a CTCSS tone or DCS code activated on the selected
channel;
C Indicates that the selected channel is included in the list of chan-
nels to be scanned (only the first 8 channels are enabled by default). To enable/disable some channels to the scan list, see paragraph “Scan”.
D Keypad lock; only / buttons are active.
E These digits show the selected channel;
F This icon appears when the radio receives a signal or when it’s
transmitting;
G Transmission mode.
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