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High Performance Time and Frequency Distribution Systems > Frequency References
 
 
The FEL-10 is a low noise distributed 10 MHz frequency reference. The device can be used to provide a stable and spectrally pure 10 MHz reference. The FEL-10 can be phase locked via a +/- 5 VDC tuning signal or phase locked to an external 10 MHz 1VRMS signal. The unit incorporates a low noise OCXO and the high performance distribution amplifier module, HPDA. Five outputs are available with channel to channel and reverse isolation exceeding 100 dB. The FEL-10 is offered in a stand-alone rack-mount enclosure with SMA connectors. The optional PLL module allows locking to an external 10 MHz source. The PLL module has loss of reference and loss of lock indicators.

FEL-10 Users Manual
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Features
Applications
  • High isolation:  > 100 dB
  • Low harmonic distortion:  -45 dBc
  • Low phase noise 
  • Frequency distribution
  • Phase noise measurements
  • Reference frequency generation
  • Telecomunications
Specifications
Parameter
Conditions
Min

Typ

Max
Units
Output power  
+10
+13
-
dBm
Output isolation Channel to channel
Reverse
-
-
100
100
-
-
dB
Mech. tuning range  
-
+/-1 E-6
-
-
Electrical tuning range +/-5 VDC
-
+/-2 E-7
-
-
Aging After 30 days operation
-
1 E-9
-
Per day
Tuning port voltage  
-
+/-5
-
VDC
Temperature Stability @ 10 MHz, 0-50¡ÆC
-
+/-1.5E-8
-
-
Phase noise L(f) 10 Hz
100 Hz
1 kHz
10 kHz
-
-
-
-
-125
-155
-164
-165
-122
-152
-161
-162
dBc/Hz
Harmonics  
-
-45
-40
dBc