Help Required Raven 1.8m with polar mount to recommend? Someone experience?

meikel

meikel

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Hello,

sorry for my bad english. After I optimized my 1.8m prodelin antenna ... I am still looking for one in the size.

I would like to buy a Raven 1.8m with polar mount. Does anyone have experience with it? What is the quality of the polar mount? Stability? In wind, for example. And how exactly are the positions approached? I could not read anything about the weight. Raven was Channelmaster / Andrew. I know that. But has the quality remained the same?

Unfortunately there is not a dealer for raven. So I can not look at them before.

It would be nice if a owner could say something about it.

Satellite dishes with inclined orbit polar mount motors. Raven 1.8m motorised inclined orbit satellite dishes. Dual axis, 2 motor polar mounts. UK.

Best regards
 
A

archive10

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After I optimized my 1.8m prodelin antenna ... I am still looking for one in the size.
Not sure what you mean "after I optimised".
But the CM180 is unlikely to give you better signal than your Prodelin.
They're about the same, performance wise.

You may get better action by changing the polar mount, though.
The SSS one looks very nice, and there are some members on the site who has one, and seem happy enough.
Be warned, that other members have had some challenges with these mount. You mileage may vary.
It won't fit the Prodelin straight out of the box, though.
But an adaptor should be easy to make. A couple of steel plates with the appropriate holes should do the trick.

The current Prodelin motorised offerings for the 1.8 is an El-over-Az mount, where you will need an RC-2000 controller and something to skew the LNB with.
The polar mount option seems better; but the only one currently made and sold for 1.8 meter offset dishes is the SSS one.
Third option is to build your own; plenty of both past and current threads on this site about that :)
 
meikel

meikel

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My Satellite Setup
180 Echostar/prodelin
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You did not understand me correctly. Because of the bad english.
I have optimized my prodelin ... by using the original feed now. This has nothing to do with the question of the raven. I do not need a comparison to the prodelin.

My question is directed to raven users with polarmount. The quality, stability and exactly how the positions are approached ... is the question.

And no, I do not want to build my own polar mount :D.
 
A

archive10

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My question is directed to raven users with polarmount. The quality, stability and exactly how the positions are approached ... is the question.
Ok - gotcha.
I would assume a comment from @mapperuo is in order.
His 1.8 CM on SSS polar mount thread is Here
 
meikel

meikel

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Yes, I have also seen. Maybe he's writing something about it.
 
B

blademedia

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If I was buying a mount I would go for this, installed a few for friends in past excellent mount
Code:
http://purplesat.com/index.php?p=1_54_Channel-Master-Dishes
 
A

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Interesting thing with this mount is that the only visible difference between the 1.2 and the 1.8 is the metal frame attaching to the dish.
Everything else looks the same.
One approach is to make a couple of extension bars yourself, and get the 1.2 mount.

The trick here, you see, is to make a differentiator.
The original Channel Master polar mount for th 120 is similar to the 180 polar mount, except the steel is different thickness and bushings and bearing are different.
In other words: A completely different mount.
But it is of course easier to make a single mechanism, and make it work for multiple reflectors ( which is what SSS seems to have been doing ).

The real core is whether the price for a PM holding a 180 is 1000 pounds more than a PM holding a 120...
It's the same with cars - the real, and I do mean real, difference between a 1.6 and a 2.4 litre engine is almost nothing if you look at the amount of steel going into the motor block, or the size of the pistons etc.etc. Difference is (cost-wise) negligible.
Same with PMs - the real difference in the amount of steel and bearing that go into a PM is approaching zero. Zilch. next-to-nothing!

All comes down to value you get - do you feel that the 1000 pounds spent more on a 180 PM makes the difference from a 120 PM?

Dunno. Go figure....
 
B

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Any pm is only as good as the pole its sits on sss 3 inch ps 4.5 for 1.8 dish, them its down to a quality actuator.
 
A

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Any pm is only as good as the pole its sits on sss 3 inch ps 4.5 for 1.8 dish, them its down to a quality actuator.
Yes, orig CM was 4.5 too.
But most of the old BUDs were on 3 inch (7,5cm), and they worked well.
I think it's more down to a) the foundation, as in concreted-in or flimsy NPRM, amd b) thickness of steel in the tube (4-5 mm recommended).
 
Captain Jack

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@scopus also has the SSS pm for his CM 1.8m dish. He seems halt with it
 
meikel

meikel

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Can you make your sentences shorter? Otherwise I do not understand them.
I thought there is no original channelmaster anymore? What is the difference? The stability of the polar mounts?

Purplesat:

- Standard polarmount (includes inclined actuator points) ............. £489

- Commercial/ broadcast quality polarmount (self lube bearings/
125mph/ big accurate arc/ multiple actuator points).............£838 exluding actuator choice

- Commercial/ broadcast quality polarmount twin axis (inclined orbit) ........£998

No sensible pictures at purplesat!

The polar mount of ravens is another like the one on purplesat? Correct? And supposedly not so good?

My polar mount the Prodelin 1.8m is also very stable ... but therefore not necessarily so accurate.
 
B

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Accuracy comes at a cost, it all down to how many $ you want to spend,

Stability is very important for accuracy,

If you have good quality polar mount on correct size stable pole 1.8 channel master 4.5 inch pole recommended and use a v box and cheap actuator you will have good setup but lots of room for improvement,

If you have good quality polar mount on correct size stable pole 1.8 channel master 4.5 inch pole recommended and use Thomson actuator and RC 2000 controller your system will be more accurate,

Then next step up for accuracy would be chain driven polar mount using RC 2000 controller

Next step is chain driven AZ/EL with lnb skew,

Each step up will cost you $$$$$$$ but accuracy will improve
 
meikel

meikel

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My Satellite Setup
180 Echostar/prodelin
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germany
I do not need a professional motor-driven AZ / EL drive. My question was yes how good is the raven polar mount? The original channelmaster polarmount purplesat (Standard polarmount (includes inclined actuator points) ............. £ 489) looks very similar to the Raven PM. Therefore the question whether there are differences. The professional PM we now do not notice.

The route is controlled by Monty 140. There must be a dispatch to germany or austria. All inclusive not more than 2.000 EUR.
 
Captain Jack

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To get the original Channel Master PM, go to Skyware Global site and mail their sales team. They are the official distributors of CM products.

SSS PM is fine for what you want and I am sure the Purple Sat one will be ok too. Mail them for pictures.

Forget the name of the dishes: Raven, Andrews etc are made from the same mould as original CMs so there is no difference.
 
scopus

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Original polar mounts made by Channel Master are no longer made, they stopped production many years ago. The SSS polar mount I have for the 1.8 is good, it's galvanised and fits a 3 inch pole. You can upgrade to inclined orbit tracking if you want to at a later date.
 
meikel

meikel

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Hey guys,

You put yourselves in power. Thanx. Although we often talk past each other. Is certainly due to my bad translation.

1. What do you always mean with SSS? Please write out.

2. The polar mount of the raven is yet another like that at purplesat. Therefore you have to take into account the manufacturers @Captain Jack. The reflectors are the same ... the polarmounts but not.

3. Nobody writes to Raven? I have to order where the conditions of delivery are right. And accessories etc. And therefore I wanted to order at satellitesuperstore.com. Is there something to order?

And there is now Raven / Skyware offered. Only the polarmount is from Raven 1.8m satellite dish. Motorised satellite dish. Andrews 1.8m satellite dish. Channel Master 1.8m satellite dish. Polar mount & actuator and not from Skyware? And there is the option of a second elevation actuator at satellitesuperstore.com

Is there really something about it? Was the question from the beginning. I have from here from few info about dealers from GB. Satellitesuperstore, purplesat ...

Satellite dishes with inclined orbit polar mount motors. Raven 1.8m motorised inclined orbit satellite dishes. Dual axis, 2 motor polar mounts. UK.
 
scopus

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SSS means SatelliteSuperstore and is based in the Newcastle on Tyne here in the UK. The polar mount he stocks are made by them and not Raven. Since Channel Master ceased manufacture, Dave at SSS was looking at other options but decided to manufacture his own for the 1.2, 1.8 and 2.4m dishes. Primesat is basically the same company as Satellite Superstore, they stock the same products.
 
meikel

meikel

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My Satellite Setup
180 Echostar/prodelin
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Thanx Scopus. Primesat identical to SSS (now I know what you always mean with SSS).

But why did purplesat still supposedly original channelmaster? And more stable and original polar mounts? And of course all considerably more expensive.

A final qualitative statement about the sss-polar mount dont you trust?

My prodelin mount looks a bit more powerful. Does not mean, however, that he is more accurate.
 
scopus

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Purplesat may have some original stock of the Channel Master mount, but I would doubt it to be honest.
I have had the SSS polar mount over 12 months without any problems, it is well made, and tracks the arc accurately.
 
meikel

meikel

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That sounds good to @scopus. Thanx.
So you have a 1.8m SSS raven? The profile is still channelmaster.
You certainly use the original feed. What a little displeasing to me is the Raven feed support boss. Is made of plastic. Is that what? On the sun and uv load. My other feed holders are all metal.

I also do not find any weight for the 1.8m raven mirror. The polarmount weighs says primesat 29 kg, but the mirror ...
 
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