Hi all,
I have a 110 cm dish mounted on Stab HH 120 rotor. It has worked perfectly for half a year ( it is still quite new ), but recently there was a lot of wind, really extreme in my region and I lost almost all SNR from 100% (100% on 19.2E, about 95% in 13E, 90% on 28.2E, 95% in 30W....) to 65-70 % in 19.2E and almost no signal in the rest of positions.
I thought what happened was that some of the screws and nuts weren't tight enough (what I doubted because I tend to tight them very well) but after lot of test I discovered that all the satelite positions have got about 3 degrees offset to the east, but the Clarke orbital track of my rotor is perfect because if I apply about 30 clicks of steps to the west in the Diseqc 1.2 stored settings for every position (every manual step means 0,1 degree as stated in rotor user manual), I will recover all the lost signal from every East to West position, in my case everything from 28.2E to 30W, which is my full usual testing bench. Obviously USALS is not working anymore with this offset.
I have tried the GO TO 0 option from my enigma2 receiver but nothing seems to reset my rotor.
With this situation, it doesn't seem that anything from the dish arms, brackets or screws have been blended or moved, no problem with orientation nor elevation, clarke orbital is perfect and it seems like if the stab HH 120rotor, being powered off, has been "jumped" 3 degrees to the east but the rotor itself has not "detected" this jump so it will fix the offset doing a GO to 0 reset.
Does anyone know if this behavior of the rotor can be solved, it is really strange
I have a 110 cm dish mounted on Stab HH 120 rotor. It has worked perfectly for half a year ( it is still quite new ), but recently there was a lot of wind, really extreme in my region and I lost almost all SNR from 100% (100% on 19.2E, about 95% in 13E, 90% on 28.2E, 95% in 30W....) to 65-70 % in 19.2E and almost no signal in the rest of positions.
I thought what happened was that some of the screws and nuts weren't tight enough (what I doubted because I tend to tight them very well) but after lot of test I discovered that all the satelite positions have got about 3 degrees offset to the east, but the Clarke orbital track of my rotor is perfect because if I apply about 30 clicks of steps to the west in the Diseqc 1.2 stored settings for every position (every manual step means 0,1 degree as stated in rotor user manual), I will recover all the lost signal from every East to West position, in my case everything from 28.2E to 30W, which is my full usual testing bench. Obviously USALS is not working anymore with this offset.
I have tried the GO TO 0 option from my enigma2 receiver but nothing seems to reset my rotor.
With this situation, it doesn't seem that anything from the dish arms, brackets or screws have been blended or moved, no problem with orientation nor elevation, clarke orbital is perfect and it seems like if the stab HH 120rotor, being powered off, has been "jumped" 3 degrees to the east but the rotor itself has not "detected" this jump so it will fix the offset doing a GO to 0 reset.
Does anyone know if this behavior of the rotor can be solved, it is really strange
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