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Thorsten has a Gibertini OP L and maybe others too. I need your help. I bought a Gibertini OP L, drove km to fetch it with my car they do not deliver it in Switzerland.
The OP L came in two packets dish and antenna mount kit. In the shop I checked that the dish is alu because Gibertini seems to produce the same dish in steel as well. I also checked that the mount kit was the right one and complete.
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Today I wanted to assemble the mount and found that it had transport damages I overlooked in the shop. The problem was that the packet had the Gibertini sticker on the bottom side and the “handle with care” glass and UP arrow was looking down. So the packet was presented to me upside down and it has been transported that way.
But the damage did certainly not occur on the back seat of my car. The main damage was a bent plate so that the two square tubes that hold the LNB would not meet in the right place. I was able to fix every thing with my mechanical skills.
But now I have a real problem:. When I want to introduce the pole clamp between the two plates where the clamp is fixed with 3 long screws this is only possible with brute force.
Actually the distance between the plates gibdrtini mm less than the width of the clamp. The result is that I can only change elevation with brute force even when all 3 screws are loose. The clamp is blocked and then jumps up to 5 degrees.
It seems excluded that I can ever use the fine tune elevation rod. Have Ggibertini got a friday afternoon specimen? Owners of OP L what is your experience?
Bauckhage – Gibertini cm / cm
The pole clamp specification says 55 mm – mm. I fixed this by introducing a second water pipe. The two parts of the pole clamp should not touch if the clamp is tightened. Maybe the inner part of the pole clamp is bend up by the outer part when a smaller pole then 55 mm is used? Is this causing your problem? Mounting the pole clamp between the two plates needs some force but not brute force. Adjusting the elevation is no problem. On Sat, Jul 7, at The pole of my home brew tripod is 60 mm but I noticed an optimum pole would be 75 to 80 mm.
The image I attached is taken from the internet just to show the layout. My mount is still on the table and the dish not attached. So nothing can be bent. By inner and massive part of the clamp you probably mean the problem half that is not seen on our pictures. It’s the part that will end between pole and dish. This part takes the 3 long horizontal bolts that end with the nuts visible at right.
Moving elevation turns around the center bolt. This part of the clamp is just too wide for the plates it fits between.
The plates are part of the big steel pressed form piece. From the construction the gap cannot easily be widened even by 1 mm. Thats why already intoducing the inner clamp was a real pain.
Greasing gibertinu a WD40 spray did not help. No chance to fine tune with the elevation rod on the bottom. The friction forces are just too high even with loose bolts.
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I can not remeber all the details. But yes, I had the same problem as you. Force was needed to locate the dish mout over the pole clamp. I think this is intended to gigertini the dish mount very stable. In the first step loose the two nuts on the fine tune rod. When the dish is completely assembled ggibertini can grab the dish with your two hands on the upper an lower end.
Then turn it up and down to roughly tune the elevation until you can receive Eutelsat 10A. Afterwards use the fine tune rod to optimise the elevation for best SNR. Cheers, Gibertinj toggle quoted message. Is it more difficult to align a dish the larger it is? I ask this because I install a 1.
The larger a dish the smaller his beam width. Cheers Thorsten toggle quoted message. On Sun, Jul 8, at For a given frequency the bigger the antenna size the smaller the beam width and the harder to point the beam to the sat. Your Gibertini Gibetini s has a half power beam width of 1. That’s why I always added my special elevation rod that has been simplified and improoved for home brewing by Arne van Belle. And the pole diameter for a Gibertini OP s should definitely be 80mm high wind loads.
I drove another km to get a second antenna mount for my Gibertini OP L. I have exactly the same mechanical problem with the giberttini setup. No use to deal with these people from the online shop that import the Gibsrtini L via Germany! Today I mounted the dish on my modified tripod. During the next days I’ll try to fine tune my dish.
If the elevation adjustment problem I expect from my experiments with the bare mount on a working table persists I’ll eventually contact Gibertini in Italy directly. But I am happy that you are up and running now. Fine tuning is a challenge. I was sure to have the optimum. But sun – sat – collinearty told me that I was 0. Thorsten toggle quoted message. On Mon, Jul 30, at I am hoping to upgrade my system this autumn and would have gone for a 1.
Bear in mind that the pole must be 55mm in diameter minimum but should rather be 75mm optimum for gibertnii clamp and high wind loads. The antenna must be attached on top of the pole. If you mount it in front of a longer pole you will be giebrtini limited in elevation. I have not yet fine tuned my OP L antenna. Far too hot for antenna pointing experiments these days My ggibertini is out of business for the moment but maybe I have a chance putting it into service and I would love to have a better elevation-option on my Triax TD Below my Triax TD elevation rod.
You can turn it with a screw driver from below. Inside the clamp is a hard PVC block with two slightly displaced perpendicular drillings. One takes the horizontal center bolt and the vertical drilling is threaded for the elevation rod.
Arne made a version that is easier to homebrew with things you get in any hardware store. Instead of my PVC block he simply took a scew nut and a window hinge. He had an article somewhere GEO? Here are his pictures:.
This cannot be undone. The Group moderators are responsible for maintaining their community and can address these issues. Your email is included with the abuse report. Search Only Within This Topic. But now I have a real problem: It almost seems I’ll have gibfrtini drive another km: Hi Ernst, is your pole wide greater then 55 mm? Thorsten The pole of my home brew tripod is 60 mm but I noticed an optimum pole would be 75 to 80 mm.
Ernst, it is more then one year ago when I mounted my dish. Peter, the answer is yes. Peter Yes this is really fundamental physics: