Help Required Motorised system fine tuning

[ozumo]

What I am noticing, and it's prevelant on 28.2e is the dish needs more skew it seems.

If I skew the LNB when at 28.2 the quality 11264H goes up from 67% to 78%.

What is weird is 11126V is at 80% with the skew at zero.

Unfortunately skewing 28.2e has a negative impact on the other sats like 16e,13e and 1w.

This is due to the skew offset I mentioned in post #3.

 

[Channel Hopper]

Yes 92% Strength 70% Quality.

It might be worth trying your system on another satellite near the top of the arc, Astra 4A at 4.9E

Astra 4A at 4.8°E - LyngSat Maps

 

[cwsat]

It might be worth trying your system on another satellite near the top of the arc, Astra 4A at 4.9E

Astra 4A at 4.8°E - LyngSat Maps

Astra-4A @ 4.8°east 11747 H 30000 ==========Quality 75%

 

[Channel Hopper]

Astra-4A @ 4.8°east 11747 H 30000 ==========Quality 75%

That is on European beam

Try 11.938 V (Lithuania radio)

 

[cwsat]

This is due to the skew offset I mentioned in post #3.

Need to try and find the sweet spot where the skew positively impacts 28.2 but not to the detriment of the other sats.

 

[cwsat]

That is on European beam

Try 11.938 V (Lithuania radio)

Will report back in a couple of hours.

 

[cwsat]

That is on European beam

Try 11.938 V (Lithuania radio)

Nothing on that TP or 11785V.

 

[Channel Hopper]

Nothing on that TP or 11785V.

Then those are the ones you should be trying to improve on that satellite.
What size dish are you using ?

 

[cwsat]

Then those are the ones you should be trying to improve on that satellite.
What size dish are you using ?

Solid 85cm.

 

[a33]

Need to try and find the sweet spot where the skew positively impacts 28.2 but not to the detriment of the other sats.

Or use a sidecar LNB, with 7.5 degrees different skew, for the Astra satellites?
I've never seen that tested, though.

And I don't know which of these two LNBs to use for the Eutelsat satellites then, such as 13E. They have 3.535 degrees pre-skew....

Greetz,
A33

 

[Channel Hopper]

Solid 85cm.

You are going to be hard pushed to improve then.

What about satellites further West ?

 

[cwsat]

You are going to be hard pushed to improve then.

What about satellites further West ?

8W is my absolute limit.

 

[Channel Hopper]

Then East (astra 3B at 23,5E). Many frequencies will provide clues on how your system is performing.

Astra 3B at 23.5°E - LyngSat Maps

 

[sonnetpete]

Bearing in mind the skew you have to 'adjust' for 28.2, have you checked that the dish is mounted in total alignment with the motor stub? If it's slightly slanted, that may account for some of the skew issues...

 

[cwsat]

Then East (astra 3B at 23,5E). Many frequencies will provide clues on how your system is performing.

Astra 3B at 23.5°E - LyngSat Maps

23.5e is strong.

I am going to hook the meter up to the minidish later and compare the strength and quality between the two dishes as currently, both dishes are performing the same

The dish is dead zero on the motor mount.