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Brct203 said:

well, we can't compare quality ratings between receivers... the same signal might display 80% on one box and 40% on another. So it's hard to tell if the problem is weak signal or polarization. There are 2 factors at play here. We know from experience that on SES3 Ku, the H channels are usually weaker than the V channels, so if the dish is not well aligned, that might be enough to make a difference and limit the reception to the V channels. But the other factor, as pointed out by clucas above, is that it could simply be that your Ku setup is working only for Vertical and not for Horizontal. Looks like you're using a corotor feedhorn (or equivalent). But what do you use to control the servo on the corotor? Modern receivers no longer have the ability to drive that stuff... So could it be that you're only receiving what your feed is set to, which would be Vertical (based on what you described, like NHK and DW in C-Band)

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Rod V said:

We rebroadcast DW-TV (we have a license agreement) for our college cable channel, and they are switching from C to Ku soon and I can't find the channel. I'm using a $29 special from Amazon, KOQIT FTA HD DVB S2 Digital Satellite TV Receiver.
With the C-band connected I get all FTA channels including DW-TV. When I do a scan with Ku, it lists several scrambled channels, a few SRV channels that I can view, NHK, CGTN, and few others, but no DW or other FTA channels, and it doesn't show any channel names. And what is SRV? Please help this confused person, thanks.

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Rod V said:

I'm almost certain the problem is polarization. Our current setup is just the receiver-we set the channel and forget it. This is the first time in more than 8 years that I have had to change polarity. The channels have moved, but they were always vertical. In the past, I used an Antenna Concepts positioner with the polarity selector to change between H/V. The polarrotator is a type of steppr motor--you MIGHT be able to control it by applying 5volts DC to 2 of the 3 wires, but it may screw it up...and will not give any reference ...it will move it..but position is trial and error...better to build the circuit that used the IC and properly adjusted position...it should be somewere on the web..you can set it to respond to TP voltage , so it does a 90degree change with H/V Transponder selction...i will see if I can find my copy and post is here later.

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So Today, I connected the old Antenna Concepts positioner to the polarotor and pressed the button... and nothing. I checked the voltage from the controller and I have a constant 5 volts. Should there be constant voltage or only when the button is pressed? Can I check the polar rotor with an ohm meter?

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Can you or someone recommend an inexpensive controller for antenna position and H/V polarization?
Thanks.

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