User's Manual

Screen Service SDT ARK 1 ECHO Purpose and planning
Jan, 2012 v 1.ATSC_FCC Page 2 - 12
2.5.3.3 GPS
Input connector TNC female
Antenna power supply from transmitter, 5V DC
Sensitivity -185dBW
2.5.3.4 10 MHz
Input connector BNC female
Input Impedance 50 Ohm
Level 2 Vpp
2.5.3.5 1 PPS
Input connector BNC female
Input Impedance 50 Ohm
Level TTL
Pulse width 100us
2.5.3.6 OPTOCOUPLERS (4)
Input connector SUB-D 25p Female
Max current -5 mA
2.5.4 OUTPUT PARAMETERS
2.5.4.1 RF GENERAL
RF OUTPUT Connector N Female
Impedance 50 Ω
RF monitor connector BNC
Impedance 50 Ω
2.5.4.2 RF ATSC MODE
Nominal output power SDT 500 UB - ARK 1 20 W RMS
Nominal output power SDT 200 UB - ARK 1 8 W RMS
In-Band Flatness ± 0.5 dB
Shoulders at F
0
± 4.3 MHz ≤ -36 dB
With digital pre-correction inserted
Spurious emission (with output filter) < -60 dBc
Harmonic emission (with output filter) < -60 dBc
2.5.4.3 ASI OUT HP
Output Signal MPEG-2 Transport Stream, ASI format
Output Level 800 mV (±10%)
Data rate 270 MB/s
Data rate error ±3 ppm
Input connector BNC
Input impedance 75 Ω
2.5.4.4 ASI OUT LP
Output Signal MPEG-2 Transport Stream, ASI format
Output Level 800 mV (±10%)
Data rate 270 MB/s
Data rate error ±3 ppm
Input connector BNC
Input impedance 75 Ω