Comtech-ef-data C5 User Manual Page 41

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C5/K1/K3 Integrated Satellite Terminal System Specifications
Rev. 0 2–7
2.1.5 C-Band Transmit (TX)
2.1.5.1 Transmit Frequency
The operator can select the center frequency of the output spectrum from 5.925 to
6.425 GHz, in 100 Hz steps.
2.1.5.2 Transmit Frequency Reference
The standard internal reference frequency has a stability-over-temperature of
% 0.001 PPM.
The internal high stability oxcillator can be adjusted from the front panel to calibrated and
counteract aging of the crystals.
2.1.5.3 Phase Noise
Note: Phase noise and RMS phase deviation ( Table 2-7)shall be met at all times, at all
frequencies, at all temperatures, and at all power levels.
Table 2-7. C-Band Phase Noise
Condition Specification
Phase noise of the transmit output
carrier
dBc/Hz
-65.0
-70.0
-70.0
-75.0
Offset from Carrier
100 Hz
1 kHz
10 kHz
100 kHz
RMS Phase Deviation
10 Hz to 1 MHz, " 2.8&
Output Signal to Noise Ratio
# 50 dB
2.1.5.4 Transmit Output Switch
When set to OFF, no signal present at the wave-guide flange is greater than -60 dBm,
measured in a 3 kHz
bandwidth.
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