3.1.4 Satellite Signal Blocked
Satellite signals can be blocked or degraded by buildings, other
vessels, or equipment on the vessel itself. Refer to
Section 2.1,
“Choosing the Best Location and Getting the Best Reception,”
to make
certain that the TracVision 4 unit is in the optimal location.
3.1.5 Outside Satellite Coverage Zone
TracVision 4 will provide outstanding reception within the
18" (45 cm) antenna coverage area for your satellite television
service of choice. However, signal quality can be degraded as you
approach the fringe coverage areas. Refer to your satellite
television service manual or an Internet resource, such as
www.satcodx.com,
to check the viable coverage area for a
18" (45 cm) antenna.
3.1.6 Radar Interference
The energy levels radiated by radar units can overload the
antenna front-end circuits. Refer to
Section 2.1, “Choosing the Best
Location and Getting the Best Reception,”
to make certain that the
TracVision 4 unit is in the optimal location with regard to your
radar unit.
3.1.7 Incorrect or Loose RF Connectors
As part of preventive maintenance (described in
Section 4,
“Maintenance”
) KVH recommends checking the Antenna Unit
cable connections. A loose RF connector can reduce the signal
quality. Refer to
Section 2.3.6, “Connecting an Antenna RF Signal
Cable to the IRD”
for directions on proper Antenna Unit to
RF cabling.
3.1.8 Multiswitch Interference
(DSS Plus
™
IRD
Users Only)
TracVision 4 has the capability to switch from one satellite to
another when you choose TV channels that are carried by your
two selected satellites. However, some multiswitches (either
active or passive), such as the Channel Master model 6214IFD,
may interfere with the 22 KHz tone sent by DSS Plus IRDs to the
3-3
Troubleshooting
54-0150 Rev. E
Baseline RF levels are included as
part of the startup sequence
provided in Appendix F.
Due to the signal polarization in
European satellites, the use of a
multiswitch (active or otherwise) will
result in a loss of signal and less
than optimal operation with
TracVision 4 systems used in
Europe.
