Sw-21... Is it a 22Khz switch? (1 Viewer)

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TJStepper

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Mar 23, 2010
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Is the Dish Network SW-21 switch a 22kHz switch that can also be used with FTA?

I have an old one laying around and was wondering if I can use it as a 22kHz switch?
 
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AcWxRadar

SatelliteGuys Pro
Apr 26, 2006
4,575
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40 miles NW of Omaha. Omaha?
Is the Dish Network SW-21 switch a 22kHz switch that can also be used with FTA?

I have an old one laying around and was wondering if I can use it as a 22kHz switch?

Welcome to SatelliteGuys!
The SW21 will work if your FTA receiver supports this specific switch. It will not work as a standard 22 KHz switch.

The SW-21 switch is definitely not a 22KHz switch, nor is it a 0v/12v switch.

Therefore, it must be some type of DiSEqC switch, but it is not the same as a typical DiSEqC switch. There is something unique about it that makes it slightly different from what we are familiar with as a DiSEqC switch as it won't work (as far as I know) if you try to set it up in a STB's menus as a generic DiSEqC switch.

Some FTA receivers have an option to utilize this switch (which is good because this switch seems to be extremely durable and flexible for many applications). They are a great little switch and tough!

I wish that I could present you with more information than just this, but maybe someone else will respond with more explicit information.

Either way, make certain that you keep that switch. If it is still functional (and I expect that it is) it is a valued switch.

RADAR
 

McGuyver

SatelliteGuys Pro
Apr 4, 2007
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Nuclear Testing Grounds
If I recall correctly, the sw21 is very much like a 22KHz switch but it operates on a different frequency. I think DirecTV has one that operates on 21KHz or lower. I can't remember what DNet's switch is, it could be 20KHz... And just for your info, I understand the "SW" does not stand for switch, I wish I could remember these things... errr! So don't quote me on this.
 

Anole

SatelliteGuys Master
Sep 22, 2005
11,819
10
L.A., Calif.
- you can quote me:

Everything you ever wanted to know about the DishNetwork SW21 switch.
Which was designed for use on Legacy hardware (13/18v), not the later model bandstacked designs, called DishPro.

"The old lineup of Dish Network multi-dish switches - SW21, SW42, and SW64 - use a low bit rate (125 bps) serial protocol to control switching.
The LNB control voltage is used to encode the logic level. Communication is unidirectional, from IRD to switch.
"

A few FTA receivers can control SW21's, but since all cannot, it would be spitting into the wind to rely on a non-standard piece of hardware.
 
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