OM45T_
Rev N
Page 13
Figure 3-1: Pure Noise Signal on Spectrum Analyzer
Figure 3-2: Minimum Transponder Signal on Spectrum Analyzer
Use the following steps in order to acquire a satellite:
Step 1 of 9:
Manually move the antenna in the Azimuth direction (scanning back-and-forth) to achieve a
maximum transponder signal with the greatest amplitude
•
Scan in one direction until the amplitude continues to diminish, and then scan in opposite direction until the
same occurs
•
Return to the position yielding the greatest amplitude
•
The maximum Azimuth excursion from the original setting should not /- 1.5 degrees, or the
antenna may begin to access a different satellite than the one desired.
Step 2 of 9:
With the antenna positioned in Azimuth, with the transponder signal maximized, follow the same
procedure as in
Step 1
, only this time using the Elevation direction (scanning up-and-down). Once again, do
this until the transponder signal has been maximized.
Step 3 of 9:
Repeat this procedure, alternating between the Azimuth and Elevation excursions of the antenna,
until you have peaked the antenna transponder amplitude.
