Sea Tel ST88-21 C/Ku-Band TVRO, Installation And Operation Manual

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Setup ST88-21 C/Ku-Band TVRO
11-2
11.5. TX Polarity Setup
With the feed in the center of its polarization adjustment range, observe the transmit port polarity (vector across the
short dimension of the transmit wave-guide).
If the transmit polarity in the center of the travel range is vertical, use the following entries:
2 Vertical Transmit Polarity
4 Horizontal Transmit Polarity
If the Transmit polarity in the center of the travel range is horizontal, use the following entries:
2 Horizontal Transmit Polarity
4 Vertical Transmit Polarity
11.6. TRACK DISP
This parameter set the selections that the user will see in the Tracking - Band Selection menu. Band Selection must be
set to the appropriate selection for Tracking to operate properly.
Band selection controls the
local
logic output state of SW1 output terminal on the Terminal Mounting Strip PCB and
remote
C/Ku relays (or other switches) on the antenna pedestal.
The factory default selections and SW1 status for your 9797B is listed in the following table:
Setting Displayed band
selection
ADE Band Select Parameters
(Tone, Voltage & Aux Status) TMS SW1
Status
0000 C
X
KuLo
KuHi Tone OFF, Volt 13, Aux 0
Tone OFF, Volt 18, Aux 0
Tone OFF, Volt 13, Aux 1
Tone OFF, Volt 18, Aux 1 Open
Short
Open
Short
When the SW1 output is shorted to ground a current sink of 0.5 amps
max is provided to control below
decks band selection tone generators or coax switches. When SW1 output is open it is a floating output.