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23
Antenna with Circular Dual LNB
(North American systems only)
To connect three or more receivers, follow these
steps to install an active (powered) multiswitch
between the antenna and the receivers.
NOTE: You can purchase an active multiswitch,
Channel Master model 6314IFD, from KVH (order
part #19-0123).
1. Connect the RF1 cable from the antenna to
the “RHCP +13V” jack on the multiswitch
(see Figure 43).
2. Connect the RF2 cable from the antenna to
the “LHCP +18V” jack on the multiswitch.
3. Connect the receivers to the individual
outputs of the multiswitch.
4. Terminate any unused multiswitch outputs
with 75 ohm DC blocks (Channel Master
#7184, Radio Shack #15-1259, or equivalent).
Only antennas equipped with a circular dual
LNB or a linear quad LNB can support more
than two receivers. Antennas equipped with
a linear dual LNB support only two receivers.
IMPORTANT!
Receiver #2
SATELLITE IN
OUT TO TV
TV ANT/CABLE IN
AUDIO VIDEO S-VIDEO PHONE JACK
RL
SATELLITE IN
Receiver #1
SATELLITE IN
OUT TO TV
TV ANT/CABLE IN
AUDIO VIDEO S-VIDEO PHONE JACK
RL
SATELLITE IN
RF1 RF2
LHCP
+18V
RHCP
+13V
Receiver #3
SATELLITE IN
OUT TO TV
TV ANT/CABLE IN
AUDIO VIDEO S-VIDEO PHONE JACK
RL
SATELLITE IN
Receiver #4
SATELLITE IN
OUT TO TV
TV ANT/CABLE IN
AUDIO VIDEO S-VIDEO PHONE JACK
RL
SATELLITE IN
MCU
Data/Power
DC In
Antenna
Gnd To MCU
DC Return (-)
Multiswitch
Figure 43: Multiswitch Wiring - Antenna with Circular Dual LNB
Be sure the multiswitch is properly grounded.
With the multiswitch grounded, you do not
need to ground the individual receivers.
IMPORTANT!
(DIRECTV only) Multiswitches block a
receiver’s 22 KHz tone that the antenna needs
to switch satellites automatically. Therefore,
the customer will need to manually switch
satellites using the buttons on the MCU.
IMPORTANT!
Connecting Multiple Receivers
B
Appendix