motor fallin out of tune

[titanicmusic14]

I read up about my motor which is the sg2100 and I understand it is sufficient but not hardcore. i would like to know why is it that my dish continues to fall out of alignment after I sat here and set up the dieseqc 1.2 which took me hours. USALS doesnt ever work but .. I am on the clarke belt because I get all the satellites. My question is my dish too heavy , I have a 36" inch oval looking dish that I bought from some guy its oval up and down not left to right. Its for the HOPE CHANNEL. I read up on it they used to sell it years ago. I motorized it and its slow .. Also I have an INVACOM quad and I understand its relatively heavy.. ANY ideas? oh and i also wanna say. My motor lags in the middle it becomes more sluggish on the middle sats and doesnt move as fast as the outter most satellites (79, 123)

 

[brentb636]

You might check out at the dish and make sure that the weight of the dish has not changed the latitude setting on your motor, as well as the dish elevation setting. I once had my motor setting slip, simply because I hadn't tightened the bolt enough, and that resulted in lower quality readings, but I could still get all the birds on the arc.

 

[titanicmusic14]

thanks for answering but I dont think its a matter of anything being tight. I double checked everything last time I was out on the roof.

 

[rv1pop]

I do not think the HOPE dish has the LNBF arm braces and woith out them a heavy lnbf or even a breeze can make it sag and warp the dish.

 

[titanicmusic14]

I dont understand

I do not think the HOPE dish has the LNBF arm braces and woith out them a heavy lnbf or even a breeze can make it sag and warp the dish.

ok so you're saying Because it doesnt have the braces to hold it up it could get knocked out of alignment. So you saying its not the motor thats slipping?

 

[Fizbi]

How bad is the slip?

My SG2100 slips ever so slightly over time.

I fine tune mine about every other month using the fine motor control in my CS5000. On average it's about 5 ticks to the west on the remote, which brings the dish back into alignment.

It always drifts towards the east over time. Strange anomaly that I cannot account for.

If the motor is not consistently counting control pulses, or say an intermittent drift of some reference voltage, it could throw off the alignment. It's never the same across the whole arc. Some of my bird positions drift worse than others.

I have read about other motors having this same issue.

 

[rv1pop]

I was only saying there may be another think to check out. Do a string test on the dish frequently and see if it stays flat. I get a lot of wind and even with just the small LNBs the dish would warp, UNTIL I got the braces, then no problems after that. Alos, it could fail the string test one day and the next time be OK again.

Kinda off the subject, but the wind whipped the arm so bad that the arm itself lost its shape and had to be replaced. BUT again, I have a lot of wind.

 

[titanicmusic14]

Fizbi

ok I have gotten in contact with the person who sold me my motor and I explained my problems. I am waiting for a response. My motor does slips . What will happen is I will program dieseqc 1.2 all the way through and scann channels as I go. then when I go back to the channels on the far left (82,79, 720 to the far right (123,116,121) they fall out of alignment. And my CNX trio doesnt make it any easier for me. It plays signal games with me and the LNB stops working. So I will be tryingto send both back cause I bought them as a combo. As for the ARM issue and the warped dish thing. I understand what you are saying and I considered it as a factor. I would like to purchase the GEOSATPRO 36" dish. I thought to do that because I thought that weight could be and issue to trim off . It has two arms from what I can tell and I have seen pictures of people using the same LNB with it. THe heavy a$$ invacom quad lnb. I will probably order that today. ITs a hundred bucks and it comes with an lnb. I may keep my old dish. and use it as a stir fry grill or something. I hope I am right to assume that a dish with arms that is not Oval shaped will solve my problems. OH and also I dont live in a rediculously windy place so wind cant bet to blame I dont think.

My SG2100 slips ever so slightly over time.

I fine tune mine about every other month using the fine motor control in my CS5000. On average it's about 5 ticks to the west on the remote, which brings the dish back into alignment.

It always drifts towards the east over time. Strange anomaly that I cannot account for.

If the motor is not consistently counting control pulses, or say an intermittent drift of some reference voltage, it could throw off the alignment. It's never the same across the whole arc. Some of my bird positions drift worse than others.

I have read about other motors having this same issue.

 

[slow-was-he]

on your dish mover the screwrod pusher section has a cheap plastic nut that is the workhorse of your mover,instead of metal or brass they use plastic for this nut! the threads jump past the nut and throw your whole system off. send it back to who ever you got it from! this is starting to be a big problem and with out your feedback , they will still be made like this.