4.3 GNM181 Multi Band Receiver
Receiver Type
184-channel
GPS, GLONASS, Galileo, Beidou
Frequency Band:
GPS:
L1C/A (1575.42 MHz)
L2C (1227.60 MHz)
GLONASS:
L1OF (1602 MHz + k*562.5 kHz
L2OF (1246 MHz + k*437.5 kHz
k = –7,..., 5, 6
Galileo:
E1-B/C (1575.42 MHz)
E5b (1207.140 MHz)
Beidou:
B1I (1561.098 MHz) B2I (1207.140 MHz)
Accuracy of Pulses:
Dependant on oscillator option:
< +-100ns (TCXO, OCXO LQ)
< +-50ns (OCXO-SQ, -MQ, -HQ, -DHQ)
Synchronization Time:
<1 minute in normal operation mode,approx.
1 minutes after a cold start (12 minutes in GPS only mode)
Signal Gain
40 dB
Antenna Gain:
≥
3.5 dBic /
≥
3 dBic
Power Supply
5 V DC (via antenna cable)
Nominal Impedance:
50 Ohm
Connection Type:
SMA female / Antenna
Cable:
shielded coaxial line (Belden H155)
Cable lenght: deductible up to max. 70m
Backup Battery Type:
CR2032 – button cell lithium battery.
The hardware clock and the RAM are battery buffered. When the main power supply fails,
the hardware clock runs free on quartz basis and the almanac data is stored in the RAM.
Life time of lithium battery: min. 10 years
Antenna
GNSS
L1 + L2 | 5 V
WARNING!
Working on the antenna system during thunderstorms
Danger to life due to electrical shock!
- Do not carry out any work on the antenna system or the antenna cable
if there is a risk of a lightning strike.
- Do not carry out any work on the antenna system if the safety distance
to free lines and sequential circuits is exceeded.
8
Date: 25th February 2020
IMS-GNM181 Setup Guide
Содержание IMS-GNM181
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