Comtech EF Data SFC4200 - Manual (Page 21)

SFC4200/SFC1275G Synthesized Frequency Downconverter Operation
TM054 - Rev. 4.0 3-5
3.3.1 Synthesizer Module (SFC4200)
The 10 MHz reference to the synthesizer is provided by the AS/3072 Reference Assembly.
Performance of the synthesizer is listed in Table 3-5.
Table 3-5. Synthesizer Module (SFC4200)
Standard Extended
RF LO Output Frequency 4592.5 - 5242.5 MHz 4.48 – 5.355 GHz
Step Size 125 kHz 125 kHz
Power Out +13 dBm +13 dBm
Spurious -70 dBc -70 dBc
Harmonics -20 dBc -20 dBc
Phase Noise
Note: Typical readings are 3
to 8 dB better than shown.
-70 dBc @ 100 Hz
-80 dBc @ 1 kHz
-88 dBc @ 10 kHz
-95 dBc @ 100 kHz
-110 dBc @ 1 MHz
-70 dBc @ 100 Hz
-80 dBc @ 1 kHz
-88 dBc @ 10 kHz
-95 dBc @ 100 kHz
-110 dBc @ 1 MHz
IF LO Output Frequency 1112.5 MHz 1.225 GHz
Spurious -70 dBc -70 dBc
Harmonics -20 dBc -20 dBc
3.3.2 Synthesizer Module (SFC1275G)
The 10 MHz reference to the synthesizer is provided by the AS/3072 Reference Assembly.
Performance of the synthesizer is listed in Table 3-6.
Table 3-6. Synthesizer Module (SFC1275G)
RF LO Output Frequency 11.91 – 12.73 GHz
Step Size 125 kHz
Power Out 13 – 15 dBm
Spurious -70 dBc In-Band
-82 dBc Out-of Band
Harmonics -20 dBc
Phase Noise
Note: Typical readings are 3
to 5 dB better than shown.
-60 dBc @ 100 Hz
-80 dBc @ 1 kHz
-84 dBc @ 10 kHz
-94 dBc @ 100 kHz
-110 dBc @ 1 MHz
IF LO Output Frequency 2.0 GHz
Spurious -70 dBc
Harmonics -20 dBc