A B Switch

hpdrver wrote:
I have two coax inputs to use for my Dish Wally receiver. One input from roof top dish and the other input from outside portable dish. I am wanting to install an A-B switch to these two inputs to make it easier. However, I saw somewhere that since the Dish receiver sends power down the coax, an A-B switch is not recommended.

Does anyone use an A-B switch with a Dish receiver and does it work. What type switch is possible. Thanks

A/B switches come in two (times at least 2) flavors. for this post I will deal only with one of the two.
Mechanical switches: Work just fine with power to the dish in fact they have a slight advantage over no switch (Will describe)

Electronc (remote controlled) may or much more likely will not work with Power to the dish .

With the mechnical switch

3 Terminals A, B and C(Common)
C goes to the Receiver
A goes to the Roof up "A-Bove"
B to the portable connetion down B-elow.

(Makes it easier to remember)

To hook up outside dish.> First switch to A Thus removing power from the "B" connection Now hook up OPPS I accidently shorted it. NO problem because no power

once connected switch to "B" and aim the dish

Disconnect: First switch to "A" now again if you screw up and short. NO problem.