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21

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.

1. Connect the RF1 cable from the antenna to 

the “RHCP +13V” jack on the multiswitch 

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.

RF2

RF1

LHCP
+18V

RHCP
+13V

Antenna

Receiver #2

Receiver #1

Receiver #3

Receiver #4

Multiswitch

DC Power

Figure 30:  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.

(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 optional TV/SAT 

Switch (KVH part #01-0245).

Wiring 3+ Receivers

A

Appendix