C-Band Orthomode setup, seperate KU dish and DisEqc motor and the microHD receiver.

[primestar31]

Well, I'm going to go to an orthomode setup on my Sadoun 6 foot dish with microHD receiver.

I have a Chaparral 11-1329-1 Dual C-Band Feed Horn, a pair of Norsat 8115 C-Band LNB's, and a MS4x8WB-WNC switch on the way.

It sounds like after you mod the switch for 18v, you can use an extra coax cable to run power to the switch from the house. Then since at the moment I'm only using the single microHD receiver, I only need a single coax run for that.

One question is how the microHD receiver would then be set to select either horizontal or vertical transponders on the seperate lnb's? If the switch is modded to always pass 18 volts, how can it switch back and forth between them? Maybe I'm over-thinking this? Is it just that the receiver still uses 13v and 18v, and is "fooled" because the switch now does the "thinking" and still selects the former 13volt input OR old 18volt input depending on the receiver as needed?

Also, since I have a seperate KU dish with a DisEqc motor on it, how would that all wire in with this new ortho setup? Can I use one of the other 2 lnb inputs on the MS4x8WB-WNC switch to select the KU lnb, thus eliminating the DisEqc switch that's there now?

Right now, I have the coax going to the DisEqc motor input. On the output of the motor, I have a DisEqc switch. Port 1 goes to the C-band (Geosatpro C2 lnbf for now) and Port 2 goes to the KU lnb. It all works fine, and motor moves, etc. I'll also have a Powermax V-Box X installed to run the c-band dish actuator before this is all through, so that also (I'd prefer if it did anyway) has to go inline with the coax going out to the dishes.



Thanks for any input into this!

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[Magic Static]

The switch still responds to the voltage switching from the receiver and selects the correct LNB. It's just now providing full power to all LNBs now.

[Magic Static]

I use an 1X8 to connect both the VBox and SG2100 to the receiver

[Pixl]

You are to inject 18-24v. into the modified switch from an external supply. I used a 19v. lap top power pack. The Micro set up is the same as your LNBF, 13v for vert, 18v for horz. The WNC switch will read the voltage and switch in the appropriate lnb. The coax voltage never gets to the LNBs as they are now powered by the external supply.

[primestar31]

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I use an 1X8 to connect both the VBox and SG2100 to the receiver

So you are running a 1x8 DisEqc switch off the back of your receiver, and it's still capable of controlling TWO KU motorized dishes, and still selecting from any lnb on the c-band dish to both ku band dishes without issues? Does a 1x8 switch work different then a 1x4 DisEqc switch? I didn't think they could pass enough current for motors.

[brentb636]

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If you only modify 1 side of the WNC 4x8 switch, then you can use the other ( 22khz ON, for example) to handle a dual output Ku lnbf, thus putting both the C-band and Ku band on the same switch with 8 receiver outputs.