Sirius Satellite Radio SR-100C - Manual (Page 7)

77 SIRIUS/DBS Signal Combiner/Splitter Installation Guide
DIRECTV with Three LNBFs with External Multiswitch
If your configuration uses three LNBFs, and has a multiswitch, the multiswitch
must be externally powered to be compatible with the
SIRIUS/DBS Signal Combiner/Splitter. Externally powered
means that the multiswitch is connected to an AC outlet.
Examine your multiswitch to determine if it is connected
to an AC outlet. There should also be a label on the
multiswitch which specifies the external power
requirements, if it is externally powered. If the multiswitch is
not externally powered, your configuration will not work with
the SIRIUS/DBS Signal Combiner/Splitter.
DIRECTV with Three LNBFs with Co-Located Multiswitch
If your configuration uses three LNBFs which have a multiswitch co-located with
the LNBFs at the satellite dish, it is not compatible with the SIRIUS/DBS Signal
Combiner/Splitter.
Cable Length
When the SIRIUS and DBS signals are combined together in one RG-6 cable, the
maximum length of the cable should not exceed 200 feet.
Multiswitches, Signal Splitters, DishPro Adapters
If your satellite TV configuration is using multiswitches, signal splitters, DishPro
adapters (DISH Network), or other device, all these devices will prevent the
SIRIUS signal from passing through them, therefore the SIRIUS signal cannot be
combined with the satellite TV signal when passing through these devices.
Instead, the SIRIUS signal and satellite TV signal have to be both combined and
split either
before or after these devices.
Stated in the simplest terms, between the SIRIUS/DBS Combiner and the SIRIUS/
DBS Splitter, there can only be an uninterrupted length of RG-6 cable.
LNBFs
SIRIUS/DBS
COMBINER
SIRIUS/DBS
SPLITTER
MULTISWITCH
SIRIUS/DBS
COMBINER
SIRIUS/DBS
SPLITTER
SIRIUS/DBS
COMBINER
SIRIUS/DBS
SPLITTER
SPLITTER
DISHPRO
ADAPTER
INCORRECT
SIRIUS/DBS
COMBINER
SIRIUS/DBS
SPLITTER
CORRECT