Advice Needed Channel Master 1m20 C-band mod

[ALPER ULUDAG]

True but I dont like touching elevation controls for obvious reasons, although its just 2 nuts on CM..

 

[Captain Jack]

Well, if you fit a jack on and add another V-Box on top then it will be easier than having to do it manually. Technically the C band LNB will be not be at the dish's focal point but C band is more forgiving than Ku.

Having motorised elevation also means you can fine tune the dish better.

 

[Channel Hopper]

Inverting the reflector prevents water from getting in the feedhorn.

You could go 'old style' and find a CoRotor and some flanged LNBs.

You will need a pulse generator to drive the internal motor

 

[RimaNTSS]

Speaking about size of clamp for C-band LNB, it should be 65mm (not less), as the majority of C-band LNBs has 65mm neck size. Some LNBs, like Chaparral have even bigger neck diameter.

 

[ALPER ULUDAG]

Many thanks for all the feedback.
With the advent of Ka-band transmissions covering our are more and more, it would be nice if someone offered a Ku+Ka band LNB.
Curently, Ka band LNB are very expensive.
I also got hold of a Chapparal borehole C+Sband feed for a 3m parabolic.Seema hard to use it though.

 

[ALPER ULUDAG]

Inverting the reflector prevents water from getting in the feedhorn.

You could go 'old style' and find a CoRotor and some flanged LNBs.

You will need a pulse generator to drive the internal motor

I am already motorised uasing an 18-in arm and Pace 995.

 

[Channel Hopper]

There is not much out there on S-band (Es'Hail 2 uplinking)

Es'hail 2 25.8°E channels

How are the beams for the broadcast channels on Es'hail 2 at 26E? Are they as tight as for its sibling at 25.5E? Any reception in Europe other than Southern Europe?

www.satellites.co.uk

I doubt the Pace has the components to run a mechanical polariser

 

[ALPER ULUDAG]

Combi LNB I will have is H/V switching by voltage, for both Ku and C. Not sure it will give optimum performance on C band.

 

[Channel Hopper]

The combi LNBs should be OK for C band, it's the Ku frequency that will be lossy.

 

[ALPER ULUDAG]

Unfortunately, you may be right .The Chinese manufacturer does not give any technical info on gains or cross-interference etc.