Meinberg GPS161 - Manual (Page 13)

13
Technical specifications GPS161
RECEIVER: 6 channel C/A code receiver with external
antenna/converter unit
ANTENNA: Antenna/converter unit with remote power supply
refer to chapter ‘Technical specifications of antenna’
ANTENNA
INPUT:
Antenna circuit dc-insulated; dielectric strength: 1000V
Length of cable: refer to chapter ‘Mounting the antenna’
TIME TO SYNCHRO-
NIZATION:
one minute with known receiver position and valid almanac
12 minutes if invalid battery buffered memory
BATTERY
BACKUP:
storage of important GPS-system data in the internal RAM,
backed-up by lithium battery
lifetime of battery 10 years min.
PULSE
OUTPUTS:
pulses per second (PPS)
high- and low-active pulses
TTL into 50
Ω
pulse duration 1 msec
turn-on slope phase aligned to UTC-second
mode of operation ‘if sync’
ACCURACY OF
PULSES:
after synchronization and 20 minutes of operation
TCXO HQ/OCXO LQ
: better than ±250 nsec
OCXO MQ/OCXO HQ : better than ±100 nsec
better than ±2 µsec during the first 20 minutes of operation
FREQUENCY
OUTPUTS:
one 10 MHz output at a time with:
TTL into 50
Ω
sinewave, 0.5 V
rms
into 50
Ω