Technical information
Oscillator options
117
Accuracy of time and frequency outputs of Meinberg GPS- and DCF77 (PZF) receivers
with different oscillator options
TCXO OCXO LQ OCXO MQ OCXO HQ OCXO DHQ Rubidium
short term stability
( t = 1 sec)
2 * 10
-9
1 * 10
-9
2 * 10
-10
5 * 10
-12
2 * 10
-12
2 * 10
-11
accuracy of PPS
(pulse per seco nd)
< +/- 250 nsec
< +/- 500 nsec ( )GPS 163
< +/- 250 nsec < +/- 100 nsec < +/- 100 nsec < +/- 100 nsec < +/- 100 nsec
phase noise
1 Hz
10 H z
100 Hz
1 kH z
-60 dBc/Hz
-90 dBc/Hz
-120 dBc/Hz
-130 dBc/Hz
1 Hz
10 Hz
100 H z
1 kH z
-60 dBc/Hz
-90 dBc/Hz
-120 dBc/Hz
-130 dBc/Hz
1 Hz
10 Hz
100 Hz
1 kHz
-75 dBc/Hz
-110 dBc/Hz
-130 dBc/Hz
-140 dBc/Hz
1 Hz
10 Hz
100 Hz
1 kHz
< -85 dBc/Hz
< -115 dBc/Hz
< -130 dBc/Hz
< -140 dBc/Hz
1 Hz
10 Hz
100 Hz
1 k Hz
< -80 dBc/Hz
< -110 dBc/Hz
< -125 dBc/Hz
< -135 dBc/Hz
1 Hz
10 Hz
100 Hz
1 kHz
-75 dBc/Hz
-89 dBc/Hz
-128 dBc/Hz
-140 dBc/Hz
accuracy
free run, one day
+/- 1 * 10
-7
+/- 1 H z (Note 1)
+/- 2 * 10
-8
+/- 0,2 Hz (Note 1)
+/- 1 ,5 * 10
-9
+/- 15 mHz (Note 1)
+/- 5 * 10
-10
+/- 5 mHz (Note 1)
+/- 1 * 10
-10
+/- 1 mHz (Note 1)
+ /- 2 * 10
-11
+/- 0,2 mHz (Note 1)
accuracy
free run, one year
+/- 1 * 10
-6
+/- 10 Hz (N ote 1)
+/- 4 * 10
-7
+/- 4 Hz (Note 1)
+/- 1 * 10
-7
+/- 1 Hz (N ote 1)
+/- 5 * 10
-8
+/- 0,5 Hz (Note 1)
+/- 1 * 10
-8
+/- 0,1 Hz (Note 1)
+/- 5 * 10
-10
+/- 5 mHz (Note 1)
accuracy
G PS-synchronous
averaged 24 h
+/- 1 * 10
-11
+/- 1 * 10
-11
+/- 5 * 10
-12
+/- 1 * 10
-12
+/- 1 * 10
-12
+/- 1 * 10
-12
accuracy of time
free run, one day
+/- 8,6 msec +/- 1,8 m sec +/- 130µsec +/- 44 µsec +/- 10 µsec +/- 1,8 µsec
accuracy of time
free run, one year
+/- 32 sec +/- 13 sec +/- 3,5 sec +/- 1,6 sec +/- 300 msec +/- 16 msec
temperature
dependant
drift, fr ee run
+/- 1 * 10
-6
(-20...70°C)
+/- 2 * 10
-7
(0...60°C )
+/- 5 * 10
-8
(-20...70°C)
+/- 1 * 10
-8
(5...70°C)
+/- 2 * 10
-10
(5...70°C)
+/- 6 * 10
-10
(-2 5...70°C)
power supply@ 25°C
steady state
warm up
5V / 20mA
N/A
5V / 160mA
5V / 380mA
5V / 300mA
5V / 700mA
5V / 300mA
5V / 700mA
12V / 250mA
12V / 700mA
24V / 540mA
N/A
suitable for clock
type
GPS161
GPS163
GPS164
GPS167 (SV)
GPS170 (SV)
GPS1 6xPC I
GPS1 6xPC
GPS1 61
G PS167 (SV)
G PS170 (SV)
GPS1 6xPCI (5V only)
GPS16xPC (5V only)
GPS1 61
GPS167 (SV)
GPS170 (SV)
GPS161
GPS167 (SV)
GPS170 (SV)
GPS167 (SV)
GPS170 (SV)
G PS167 (SV)
G PS170 (SV)
Note 1:
he accura cy in Hertz is based on the standard frequency of 10 MHz. For example: Accuracy of TCXO (free run one day) is +/- 1 * 10 E-7 * 10 MHz = +/- 1 Hz
he given values for the accuracy of frequency and time (not short term accuracy) are only valid for a constant ambient temperature !
A minimum time of 24 ho urs of G PS-synch ro nicity is required befo re free run starts.