Comtech EF Data SLM-5650B, Installation And Operation Manual

Page: 39 / 412

SLM-5650B Satellite Modem
Revision 2
Introduction 1–15 MN-SLM-5650B
Table 1-5. Summary of Modulator Specifications
Modulator Specifications
Parameter Specifications
Output Power +10 to -40 dBm, adjustable in 0.1 dB steps.
Output Return Loss -14 dB (70/140 MHz)
-9 dB (L-Band)
Output Impedance
50
Ω
Spurious
From Carrier
±
T
X
SR
TO
500 MH
Z
–51 dBc (measured in a 10 kHz bandwidth).
Harmonics From Carrier (CW) to the greater of the 12
th
harmonic or 4000 MHz –60 dBc
Tx Clock Source Tx Terrestrial or SCT Internal
SCT Clock References Internal Reference, Looptiming (Rx), or Data Source Synchronization
Output Connections TNC for 52 to 88, 104 to 176 MHz
Type N for 950 to 2000 MHz
Modulation Timing Jitter
< 3
%
of the modulation symbol period
Modulation Phase Error
< 2 °
Modulator Spectral Inversion Modem can invert the modulated spectrum.
Transmit Clock and Data
Inversion
Modem can invert the Tx clock and data independently of each other. (EIA-530,
EIA-613).