Slave a DVB receiver to your existing 4DTV system:

With the addition of a digital MPEG-2/DVB receiver as a slave, you could still utilize your existing movable C / Ku band dish and analog receiver system or 4Dtv IRD.  As the master receiver, the analog receiver is used for the reception of analog C and Ku band programming, and also to position the antenna and select the correct polarization of the feed horn. The digital DVB channels will be viewed using the DVB receiver.

Most MPEG-2/DVB receivers have one LNB input, so you will need the kit to switch C or Ku feed from your dish. All digital receivers sold here offer DiSEqC, 0-12V, and 22Khz Tone switching control output. 

The basic slave kit accessories you will need are:

  • 1 x Auto 0/22kHz, A/B,  0/12V switch, or 2 way DiSEqC switch
  • 2 x high frequency splitters (one leg DC-pass)
  • 5 x 3' coax patch RG-6 cables

Procedures:

  1. Connect the C band coax from dish to one splitter input
  2. Connect the Ku band coax from dish to the second splitter input.
  3. Connect both DC pass outputs from the splitters to the C and Ku LNB inputs on your old analog/4DTV receiver. 
  4. Connect the other two remaining outputs from splitters to the 0/22kHz switch's two inputs.  C side to "0Hz" input, and Ku side to "22kHz" 
  5. The single output from 0/22kHz switch goes directly to the DVB receiver LNB (IF) input.
     

LNB switch setup:

If you are using a 2 Way DiSEqC switch:

Satellite Type

C Band Ku Band

LNB Type

Standard Standard
LO Freq. 5150 10750
LO. Freq. low    
22KHz OFF OFF
DiSEqC DiSEqC1 DiSEqC2

If you are using a Auto 0/22kHz switch:

 

Satellite Type

C Band Ku Band

LNB Type

Standard Standard
LO Freq. 5150 10750
LO. Freq. low    
22KHz OFF ON
DiSEqC Disable Disable
DiSEqC 1.2 Disable Disable
0/12V Switch    

 

If you are using a Auto 0/12V switch:

 

Satellite Type

C Band Ku Band

LNB Type

Standard Standard
LO Freq. 5150 10750
LO. Freq. low    
22KHz OFF OFF
DiSEqC Disable Disable
DiSEqC 1.2 Disable Disable
0/12V Switch 0V 12V