Space Heritage – Space Master Clocks

A Master Clock (based on precision Quartz Crystal Oscillators or Rubidium Vapor Atomic Oscillators) is intended to be used where timing is critical, but the host device may need to perform autonomously. For example, a satellite requires an internal clock, which is synchronized with clocks on earth. Since the satellite can be out of touch with ground stations from time-to-time and when contact is re-established, both the internal and earth clocks must be in perfect synchronization to maintain communication.

ACTS Frequency Generator FE-5150A
5 MHz to 6.8 MHz, Fully redundant,
includes DC/DC Converter
Syracuse 1, 2
Triple Redundant Master Quartz Clock and Distribution Assembly
with 60 Isolated Outputs
Cesium Beam Atomic Frequency Standard
Eutelsat II Local Oscillator

Advanced EHF Space System

• Triple Redundant Rubidium Atomic Standards
• Triple Redundant Precision Quartz Oscillators
• Double Redundant Multiple Frequency RF Synthsizers
• Triple Redundant DC/DC Converters
• Triple Redundant Mil-Std-1553B Serial Interface

Space Heritage - Master Oscillators and DROs
  Output Frequency Number of Outputs Attributes
Master
Oscillators,
1 x 3
redundant

10.9 MHz
10.9 MHz
10.0 MHz
10.0 MHz
10.0 MHz
10.0 MHz
3
2
1
2
5
3
Step frequency
Step frequency
1.4 x 10-12/sec stability
Step frequency
Step frequency, 5MHz x 2
Step frequency
CRO/DRO 14.16 GHz
13.17 GHz
2.55 to
3.30 GHz
1.0 to
1.80 GHz
5.0 GHz
14.0 GHz
1.8 GHz

5
5

12

12
50
2
2

PLDRO, 80 MHz reference
Free-running

PLDRO, 25 MHz reference

PLDRO, 25 MHz reference
PLDRO
PLDRO, 10 MHz reference
PLDRO, 10 MHz reference

Space Heritage - Oscillators, Quartz and Rubidium
Partial listing of Oscillator Programs for Space:
ACTS
AEHF 1, 2
ARGOS
COBE
DMSP
DSCS
DSCS III
DSP
ERBS
ERS-2
EUTELSAT II
FLEET SAT COM
GCCS/WAAS
GGS
GLOBALSTAR
GPS
INMARSAT
ITALSAT/EMS
KoreaSat 5
LANDSAT 6
Mars Observer
MILSTAR
N-STAR
Radarsat
Shuttle
SICRAL 1, 1B
Space Station
Space Telescope
SPOT 2, 3, 4
Syracuse I, II
TDRSS
TELECOM II
TIROS
TEMPO
TRMM
UHF Follow-On
VOYAGER 1, 2
WGS 1, 2, 3, 4
WORLDSTAR
XM RADIO
XTE
Space Oscillators — Specifications
Program
777
Pioner
Venus Probe
Galileo Probe
GPS
MILSTAR Rb
FEI Model
Number
FE-8031A
FE-2123A
FE-2161A
FE-2089C
D58390-10784
Applicable
Drawing
Number
C09338-2353
C18500-5298
C25500-7232
D28160-7345
D58390-10784
Output
Frequency
5.0 MHz
19.1 MHz
23.0 MHz
10.23 MHz
5.0 & 10.0 MHz
Stability

±5 pp 10-10
/100 msec

±5 pp 10--9
/24h

±1 pp 10-9
/(82 min mission)
including
temperature
from
-20°C to +50°C
±1 pp 10-11
/sec
±1 pp 10-10
/30 min

±4 pp 10-11
/10 msec
±6 pp 10-12
/100 msec
±2 pp 10-12
/1 to 100 sec
±1 pp 10-11
/24 h
±3 pp 10-10
/30 day

±1 pp 10-11
/100 msec
±3 pp 10-12
/1 sec
±5 pp 10-12
/10 to 100 sec
±5 pp 10-11
/24 h
Frequency Adjustment
Range
NA
NA
NA
NA
3 pp 10
Temperature Coefficient
4.3 pp 10-7
/16.7°C
Stability shown
above includes temperature
1 pp 10-10
/10°C
<1 pp 10-9
1 pp 10-10
(-6.7°C to
+43.3°C)
DC Power
200 mW
6 W Peak
1.5 W Operating
7 W Peak
1.2 W Operating
10 W Peak
2.5 W Operating
10 W Peak
2.3 W Operating
Size
3" x 1.75" x 0.87"
5" x 1.5" x 2"
1.75"D x 5.5"
5.75" x 2" x 2.5"
4" x 1.5" x 1.75"
Weight
3 oz.
8.5 oz.
20 oz.
18.5 oz.
8 oz.
Type
TCXO
OCXO
OCXO
OCXO
OCXO
Output Frequency Capability
4 - 10 MHz
15 - 30 MHz
20 - 30 MHz
9 - 11 MHz
5 & 10 MHz
Space Oscillators — Specifications
Program
MILSTAR MO
Space
Shuttle
SPOT
Weather
Satellite
INTEL VI
FEI Model
Number
FE-2225A
FE-5051A
FE-2138J
FE-2100B
FE-2194A
Applicable
Drawing
Number
D45090-10304
D21010-5151
D80890-11262
D49841-9681
D36680-9086
Output
Frequency
5.0 & 10.0 MHz
4.608 & 9.216 MHz
5.0 MHz
5.120 MHz
95.0 MHz
Stability

±5 pp 10-12
/100 msec
±2 pp 10-12
/1 sec
±3 pp 10-12
/10 to 100 sec
±3 pp 10--11
/24h

±1 pp 10-9
/24 h
±7.9 pp 10-10
/5 msec
±6 pp 10-12
/100 sec
±2 pp 10-12
/1 sec
±3 pp 10-12
/10 to 100 sec
±3 pp 10--11
/24h

±3 pp 10-8
/week

±4 pp 10-9
/10 day
Frequency Adjustment
Range
Remote
Manual Local
and Remote
Manual
Manual
Manual
Range
3 pp 10-7
▒1.2 Hz
2.5 pp 10-7
▒2 Hz
 
Temperature Coefficient
3 pp 10-7
/25°C
5 pp 10-9
/70íC
3 pp 10-11
/15°C
1 pp 10-9
/°C
1 pp 10-7
/5°C
DC Power
200 mW
6 W Peak
1.5 W Operating
7 W Peak
1.2 W Operating
10 W Peak
2.5 W Operating
2.0 W Turn On
1.3 W
Size
2.57" x 1.96"
x 5.53"
9.45" x 5.25"
x 2.25"
2.5" x 3.125"
x 7.625"
6" x 4.8" x 2.13"
3.8" x 2.0" x 1.65"
Weight
19.2 oz.
55 oz.
28 oz.
20 oz.
8.8 oz.
Type
OCXO
OCXO
OCXO
OCXO
OCXO
Output Frequency Capability
4 - 10 MHz
4 - 10 MHz
4 - 10 MHz
4 - 10 MHz
90 & 100 MHz
Space Oscillators — Specifications
Program
137
137
DSCS III
DORIS
INTEL VI
FEI Model
Number
FE-2044A
FE-2244A
FE-2138A
FE-2138F
FE-2138C
Applicable
Drawing
Number
C13467-1404
C46960-10519
D23100-6298
D82100-10637
D41100-9098
Output
Frequency
83.73 MHz
90.0 MHz
5.0 MHz
5.0 MHz
6.144 MHz
Stability

±1 pp 10-9
/1 sec
±20 pp 10-7
/7 years

±1 pp 10-9
/1 sec
±5 pp 10-6
/1 year
±20 pp 10--6
/7 years
▒3 pp 10-11
/100 msec
▒3 pp 10-12
/1 sec
▒5 pp 10-12
/10 to 100 sec
▒ 2 pp 10-11
/24 h

▒6 pp 10-12
/100 msec
▒2 pp 10-12
/1 sec
▒5 pp 10-13
/10 to 100 sec
▒3 pp 10-11
/24 h

▒5 pp 10-12
/100 msec
▒2 pp 10-12
/1 sec
▒3 pp 10-12
/10 to 100 sec
▒2 pp 10-11
/24 h
Frequency Adjustment
Range
N/A
Electrical
Remote
Manual
Remote
Range
▒43 pp 10-6
3 pp 10-7
2.5 pp 10-7
3.2 pp 10-7
Temperature Coefficient
±3 pp 10-6
(all conditions)
(-6°C to 50°C)
±6 pp 10-6
(all conditions)
(-6°C to 50°C)
4 pp 10-11
/25°C
3 pp 10-11
/15°C
3 pp 10-11
/15°C
DC Power
1 W (Heater)
200 mW
(Oscillator)
1.3 W (Heater)
200 mW
(Oscillator)
2.3 W
2.2 W
2.5 W
Size
1" x 3.0" x 1.73"
3.25" x 1.75"
x 2.81"
2.0" x 2.5"
x 6.75"
2.0" x 2.5" x 6.75"
2.0" x 2.5" x 6.75"
Weight
4.8 oz.
5 oz.
28 oz.
28 oz.
29 oz.
Type
OCXO
OCVCXO
OCXO
OCXO
OCXO
Output Frequency Capability
80 - 90 MHz
85 - 95 MHz
4 - 10 MHz
4 - 10 MHz
4 - 10 MHz
Space Oscillators — Specifications
Program
FLTSATCOM
LEASAT
DSP-1
MISSION 34
FEI Model
Number
FE-2098A
FE-2098A
FE-2138D
FE-2138B
Applicable
Drawing
Number
D14100-4391
D34100-7391
D42100-9198
D33100-7298
Output
Frequency
5.0 MHz
5.0 MHz
5.0 MHz
5.0 MHz
Stability

▒2 pp 10-9
/1 msec
▒3 pp 10-11
/100 msec
▒3 pp 10-12
/1sec
▒5 pp 10-12
/10 to 100 sec
▒1 pp 10-11
/24 h

▒1 pp 10-11
/100 msec
▒3 pp 10-12
/1sec
▒5 pp 10-12
/10 to 100 sec
▒4 pp 10-11
/24 h
▒7.9 pp 10-10
/5 msec
▒6 pp 10-12
/100 msec
▒2 pp 10-12
/1sec
▒3 pp 10-12
/10 to 100 sec
▒3 pp 10-11
/24 h

▒5 pp 10-12
/100 msec
▒2 pp 10-12
/1sec
▒3 pp 10-12
/10 to 100 sec
▒2 pp 10-11
/24 h

Frequency Adjustment
Range
Manual
Manual
Remote
Remote
Range
3 pp 10-7
▒3 pp 10-7
2.5 pp 10-7
2.5 pp 10-7
Temperature Coefficient
4 pp 10-11
| / 25°C
1 pp 10-10
/ 50°C
1 pp 10-10
/ 15°C
3 pp 10-11
/15°C
DC Power
2.3 W
2.3 W
2.2 W
2.2 W
Size
5.25" D x 8.5"
5.25" D x 8.5"
2.0" x 2.5"
x 6.75"
2.0" x 2.5" x 6.75"
Weight
41 oz.
39 oz.
29 oz.
29 oz.
Type
OCXO
OCVCXO
OCXO
OCXO
Output Frequency Capability
4 - 10 MHz
4 - 10 MHz
4 - 10 MHz
4 - 10 MHz