Moseley Starlink SL9003Q, User Manual, Page: 31 / 141

Section 3: Installation 3-5
Moseley SL9003Q 602-12016-01 Revision J
Procedure
1)
Connect the equipment as shown in Figure 3-3 for a Discrete Audio link. Be sure to
physically separate the TX and RX units by greater than 15 feet, in order to provide isolation
for the BER threshold measurement. Calculate or measure the signal level present at the
SL9003Q RX antenna input (-60 dBm typical) .
NOTE : A nearby STL on the same channel may cause interference.
2) Apply AC power to the SL9003Q receiver. On the Receiver module rear panel, the RX
LOCK LED will light up red and change to green, indicating PLL lock of the down-converter.
On the QAM Demod module rear panel, the DEMOD LED will flash red, indicating that there
is no lock yet at the demod.
3) Apply AC power to the SL9003Q transmitter. On the Transmit Module rear panel, the TX
LOCK LED will light up red and change to green, indicating PLL lock of the up-converter. On
the QAM Mod module rear panel, the MOD LED will flash red, and then change to green,
indicating lock of the QAM modulator.
4) The output power on the wattmeter should measure between 0.9 and 1.1 Watts.
5) Within 90 seconds after the TX carrier is present (30 seconds typical) , the DEMOD LED
will stop blinking and turn to a solid color:
• GREEN indicates high signal strength (ACCEPTABLE)
• YELLOW indicates average signal strength (TYPICAL)
• DARK ORANGE indicates low signal strength (ACCEPTABLE)
• FLASHING RED indicates no signal (NON-OPERATIONAL)
6) After verifying the DEMOD LED is within the color range, go to the QAM RADIO RX
STATUS screen on the front panel LCD and page down to the RSL parameter (see below).