Advice Needed silly question time re polar mounts (non diseqc motors)

manikm909

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My Satellite Setup
Channel Master 1.2M \ Channel Master 90cm \ Laminas OFC 1200 Dish, Octagon SF8008 (main STB) - Icecrypt 6600 - TM5302
My Location
SE London, UK
hey guys

ive only ever used DISEQ motors, the downwards pointing ones...so bear with me on this.

my question is, if using a polar mount, does it "twist" \ arc the dish (offset) in the same way as a DISQC motor would - or is it a more left and right type movement ...

similar question, if setting up a dish WITHOUT A MOTOR, i.e a manual A/Z mount, for an extreme arc location i.e 45e (when my due south is 0 approx) - on the basis the dish cannot twist during setup, would it just be a case of swinging the dish far east and point downwards (roughly speaking)

i guess what im asking is, is there any possibility you could get a signal MANUALLY when manually aligning, but NOT a motor setup using a motor which is tracking the arc perfectly?
 

ozumo

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My Satellite Setup
Raven mk2 zone 2 x4, Channel Master: 90cm x3, 1.2m x2, 1.8m PF. CM polar mount x2, Az/El x3.
My Location
South Durham
Polar mount skews the dish in a similar way to a DiSEqC motor. Though with a 'downward pointing' motor you may get a small amount of swing - in your case away from the wall for eastern satellites, towards it for west. This can be simulated on a polar mount by hanging the dish down like a pendulum, like in this post by RimaNTSS:

I think in your case the motorised dish on the DiSEqC motor will see slightly more eastern arc than a fixed dish due to the 'swing'.

With a fixed dish you also need to adjust LNB skew. For satellites with a skew offset such as Eutelsat & Astra sats you could get better signal from a fixed dish as the skew can be optimised for a particular satellite.
 
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