Newbie Here Some advice please for a new member.

airbourne

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Many thanks for all the input on the quest for a good setup for a relative novice!
The point I was making in regard to the motors I've seen so far is that the dish sort of hangs like a heavy teardrop on the shaft that comes out of the motor body. So the whole weight of the dish is on the end bearing on the motor. This may be ok for a while, but doesn't look good long term in a bit of heavy wind. If I'm wrong on this, please tell me. If it is good long term, I'm worrying over nothing. I'm not a member on the forum that a33 posted so I can't see the pics but thanks anyway! I may register.
Thanks to moonbase for the advice on motors. I'll get back on here when I find a motor that will be up to the job. Also, its pretty evident that I need to swat up on dish tech. It looks like we have to put up with quite a bit of compromise as I can't see a lot of people adjusting the skew on the lnb every time one commits a full sweep of the dish. Or maybe you don't need to?
I've been looking at a lot of mounting brackets and I may fabricate one myself. It looks like most of them stand off at 45 to 50cm but with only four bolts 12cm apart. I can have it galvernised or even powder-coated. I coud do with a pic of a decent polar mount so I know exactly what I'm looking for. Steve
 

Lazarus

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^^^^^^

The locus described by a powered dish means that skew adjustment is, to all intents and purposes, automatic.
 

Channel Hopper

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^^^^^^

The locus described by a powered dish means that skew adjustment is, to all intents and purposes, automatic.

Some satellites remain an exception..
 

Lazarus

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True ..... but that's not the fault of the dish!
 

moonbase

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.... I could do with a pic of a decent polar mount so I know exactly what I'm looking for. Steve

Channel Master used to make an off the shelf polar mount for the 1.2m dish. If you create a "Wanted" advert on the forum someone might have one for sale? If you are willing to do a little bit of fabrication work there is a galvanised Irte polar mount and ground stand listed on eBay. It has been listed for quite some time and the seller has listed it with "Make an Offer"

IRTE 1.5m Satellite Dish Patio Mount - Galvanised | eBay

All that should be needed to get a CM 1.2m onto the Irte polar mount would be a mild steel interface plate that bolts to the polar mount and has 4 bolt holes to accept the CM 1.2m dish.
 

airbourne

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Thanks for that link moonbase. That looks like a pretty sturdy product. It looks like it would need to be screwed to the ground. I take it that the actuating rod plugs into the rec in the same way as an HH motor would?
Steve
 

moonbase

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Thanks for that link moonbase. That looks like a pretty sturdy product. It looks like it would need to be screwed to the ground. I take it that the actuating rod plugs into the rec in the same way as an HH motor would?
Steve


Steve,

Personally, I would anchor the Irte ground stand to three concrete kerb stones with approximate dimensions of 960mm x 150mm x 125mm. Local builders yards should sell them for around £10 each.

In principle the actuator works in a similar way to a 36 volt H-H motor such as a Jaeger 1224. Normally you would wire the actuator up to a v-box which acts as the dish positioner. The v-box can act as an independent positioner or receive instructions from a satellite receiver via DiSEqC commands sent along the LNB cable.
 

airbourne

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Its early days for the receiver at the moment as I've just bought the dish. Being retired I have to keep an eye on the funds a bit and I've not sited the dish on a suitable mount yet.
If I go for the Irte polar mount I'll need to know what a V-box is and where I would get one from. I'm a bit new to the serious end of setting up a quality dish system. I hope you can bear with me a bit until I've absorbed all the knowledge!
I have been looking into the Kodi box. I have a good web connection and it looks like a very good addition to the viewing system and there's quite a few on the market at the moment. I have to think about the polar mount as its in Luton and I'm in deepest Kent. Steve
 

Mickha

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A V-Box II controls a 36v motor, a motor that has 4 electrical wires, coming from it.
The V-Box II can move your motor either manually, with its remote control, or to set positions, and even be connected to your satellite receiver, allowing that to move the motor.
 

airbourne

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I collected my CM dish with the AZEL mount and a large wall bracket. Also, he gave me the paperwork and two four metre lengths of coax. It was on a wall about six feet from the ground so was quite easy to take down.
I've been looking at the motors. I still think that the HH motors will probably not be up to the job but the Super jack actuator looks like it may survive a bit longer, I just need to find a polar mount preferably with the actuator already on it.
I'll have a go at selling the AZEL mount. Its a 3 inch version and has a 50cm stand off, so quite strong and usable.
I've included some pics here. Hope they are not too large. If it hasn't worked I'll have to reduce the size to have another go.
 

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Channel Hopper

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Channel Master used to make an off the shelf polar mount for the 1.2m dish. If you create a "Wanted" advert on the forum someone might have one for sale? If you are willing to do a little bit of fabrication work there is a galvanised Irte polar mount and ground stand listed on eBay. It has been listed for quite some time and the seller has listed it with "Make an Offer"

IRTE 1.5m Satellite Dish Patio Mount - Galvanised | eBay

All that should be needed to get a CM 1.2m onto the Irte polar mount would be a mild steel interface plate that bolts to the polar mount and has 4 bolt holes to accept the CM 1.2m dish.

Probably a bit late but the IRTE polarmount does not lend easily to modification as the metal forward of the main bearings is a single spar of quality galvanised steel which is almost 1/2” thick but under 4” wide.

Getting brackets to fit and adjust an offset dish accurately is probably more trouble than buying a mount that fits from the word to.

( I probably have one in the shed but will have to check, am as far from the o/p is to Luton as well)
 

moonbase

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...I've been looking at the motors. I still think that the HH motors will probably not be up to the job but the Super jack actuator looks like it may survive a bit longe....


Think again, a Jaeger 1224 H-H motor will last for decades with a mini dish like a Channel Master 1.2m on it. I have a Jaeger 1224 here that has been used for at least 15 years and it is still operational. If you buy a modern SuperJack actuator the chances are you will be replacing it in three or four years if it lasts that long. The old SuperJack actuators were made to a higher standard than those made nowadays.

Jaeger shipped an adapter plate with the 1224 H-H motor that was custom cut and drilled for a Channel master to bolt directly onto it. In its day, the Jaeger 1224 and Channel Master 1.2m dish was one of the most popular dish motor combinations used for motorised satellite.
 

moonbase

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Probably a bit late but the IRTE polarmount does not lend easily to modification as the metal forward of the main bearings is a single spar of quality galvanised steel which is almost 1/2” thick but under 4” wide.

Getting brackets to fit and adjust an offset dish accurately is probably more trouble than buying a mount that fits from the word to.

( I probably have one in the shed but will have to check, am as far from the o/p is to Luton as well)



The seller did indicate that he had good fabrication experience, it was only for that reason that I suggested the Irte polar mount and ground stand as an option. I have an identical Irte polar mount and ground stand here, I think you saw the Irte stand when you were over here collecting the LNB's. I am hoping to do a bodge job with it to mount a prime focus dish on it.
 

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There should be little issue substituting one bowl for another, offset is a different kettle of fish entirely
 

airbourne

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So a Jaeger 12 24 HH motor would be the way to go? As I don't have any experience of these things I'll be guided by you on here. It makes a difference as I need to buy either a polar mount or a patio mount without the actuator assembly on the top of it. Whatever I buy I'll probably modify it as most of the mounts don't look as if they could keep a 1.2 dish steady. In fact, I may make it myself as a standard patio mount is a relative simple affair. I have very good fabricating skills along with all the tools like welding/cutting and grinding etc. The only thing is, I would need to get it powder-coated as galvanizing just one item would be quite expensive.
Still toying with the idea of siting it on the flat roof though. There's a large fat chimney stack up there that's just calling for a nice dish! That would certainly require a bespoke bracket, one that probably I won't be able to buy. By the way. The location of the pics are of the guy who I bought the dish from and not at my location. Steve moonbase. I have that polar mount in my watch list but I'm pondering!
 

moonbase

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@airbourne

As I see it you have two options.

1. A second hand Jaeger 1224 H-H motor with 1.2m Channel Master adapter plate and bolt the dish straight onto it.
2. A polar mount with an actuator.

Whichever option you choose you will need either a ground stand for a patio or flat roof install or some type of bracketry for a wall install. The Jaeger 1224 H-H motor and polar mount need a pole to sit on top of.

On the subject of a ground stand for a patio install or a flat roof install you could buy a non penetrating roof mount (NPRM). These are available off the shelf and are generally galvanised with anchorage trays that accept standard size paving slabs. They can be used equally as well on a patio or a flat roof despite the name of "non penetrating roof mount".

If you decide to go for a non penetrating roof mount I would personally recommend you get one with a 3" (76.2mm) diameter pole rather than a smaller diameter pole. There should be availability on eBay.


That's my tuppence worth, you might get options from other forum members that provide an equally as good or better solution.
 

RustySpoons

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I've bought quite a bit of stuff from hm-sat-shop.de/en Unless you want to spend serious money on an actuator their range is OK although they could do with extra magnets placed on the wheel to improve positioning resolution. Both my 36 and 12 are still working fine after four years and little if any maintenance. Don't even consider putting a 1.2CM on a diseqc motor, especially if you are thinking about putting on a flat roof.

I've been thinking about changing the magnet on my actuator to one with more poles to get a higher resolution, are these available anywhere or have you tried this? The "HS" versions of the SuperJack have a 4 pole rather than 2 pole magnet. I was pondering the idea of trying one out if I could get my hands on one.
 

airbourne

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Hi moonbase. The 3 inch non penetrating stand with the slabs will be the route I think with a bit of securing to some surrounding structures for some stability.
I think I've read it right.....I'll need an adapter from the dish to the motor, plus another adapter to fit the motor to the pole? Steve
 
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