22K tone for C band TP

[MOLOYBORA]

For C band TP, 22K Tone OFF or ON Mode? My LNB is Universal Dual Pol LNB. I Try to catch Measat 91*, 5150-Horizantal, 22K= OFF, Is it Correct???

 

[srinivas33]

Keep it off, if you are not using any 22khz tone switch, as it is a dual pol lnb, switching happens automatically with the help of STB which sends it 13 V or 18V.

The Single output Lnb have one connector and give the receiver Vertical transponders when fed 13 volts, and Horizontal transponders when fed with 18 volts.

22khz tone is used to select the local oscillator frequency in the lnb. As universal C band lnb have one local oscillator frequency i.e. 5.150GHz, i think there is no need of 22khz tone.

here is a post in our forum relating to 22 khz tone.
Link Removed

Further references:

Satellite switches simplified

Low-noise block downconverter - Wikipedia, the free encyclopedia

 

[MOLOYBORA]

Thanks Srinivas,
I will try with 22k OFF Mode,,,, Ok

 

[srinivas33]

Update your experience after you try it, if there are any mistakes means, experts will correct it. Hope you will receive some C band channels in 90cm offset dish. Keep trying.