GFU27 User Guide
Version
3.0
10
DATA MODEM
Electrical Interface
RS-232
Interface Connector
Lemo
Data speed of
I/O-interface
300 – 38400 bps
Data speed of
Radio Interface
19200 bps ( 25 kHz channel) /
9600 bps (12.5 kHz / 20 kHz channel)
Data Formats
Asynchronous data
Modulation
4FSK, GMSK
GENERAL
Operating Voltage
+6.0 Vdc … +30 Vdc +/- 5% Vdc
Temperature Range
Type approval condition: -25 °C...+55 °C.
See note1.
-30 °C ... +70 °C
Functional
Temperature
Ranges Note 2
-25 °C ... +55 °C
Complies
with
standards
-40 °C … +85
°
C
Storage
Antenna Connector
50
ohm,
TNC female
Housing
Metal inside plastic housing
Size L x W x T
145 mm x 70 mm x 50 mm
Weight
325 g
OTHER MEASURES
ESD-failure
threshold
8 kV contact, 15 kV air discharge
Immunity test
10V/m
Note 1
Due to radio electronic design, the receiver is about 6-15dB less sensitive on the following
frequencies:
403.000, 416.000, 429.000, 442.000, 455.000, 468.000, 409.5875 and 469.200 MHz.
Note 2
Automatic Switch OFF when internal temperature during transmission e90 °C.
