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Maintenance
|
6-5
Engineered to Endure
3. Connect the LNB to the demodulator by attaching the coaxial cables from the Rx
L-band Out on the LNB to the demodulator Rx L
-
band input port. If the Rx level is
low, check the cable, the feedhorn, and the antenna for proper operation.
Common Problems
The following problems or occurrences have been noted during normal
troubleshooting.
Tx Output is Disabled
When the Tx Output is set to Disabled, the Tx Output level shown on the
-
99.00 dBm. This is not an actual reading.
However, when conditions cause the automatic shut-off of the Tx Output signal, the
Tx Output is muted and the Tx Output level on the
reads
-
96.00 dBm.
Incorrect Frequency Settings
If the Satellite Network Operations Center (NOC) does not recognize your signal, see
for additional information.
Damaged Cables
RF coaxial cable damaged due to improper handling (such as contact damage due to
improper mating; cable insulation that is damaged, crushed, cut, or charred; cables
were not discharged prior to connecting them; or conductors that are nicked, gouged,
damaged, or severed) may impair system performance and reliability. Do not attempt
to repair broken or damaged coaxial cables unless absolutely necessary. Replace the
entire cable whenever possible.
Damaged cabling and incorrectly tightened connectors can leak RF energy, which may
lead to excessive levels in their immediate vicinity.
!
CAUTION
Never disconnect RF cables or connectors associated with a transmitter
in operation since this may result in an RF burn through direct contact
with RF conductors.
Summary of Contents for IBUC 2
Page 6: ...iv Engineered to Endure Appendix F Glossary Glossary of Terms F 1 ...
Page 8: ...vi Engineered to Endure ...
Page 12: ...4 Engineered to Endure ...
Page 46: ...System Components 2 26 Engineered to Endure Figure 2 10 DC Power IBUC System Configuration ...
Page 57: ...General Requirements 3 9 Engineered to Endure Figure 3 2 IBUC 2 Field Installation ...
Page 196: ...I n d e x 4 ...