85cm Clear Dish

satkitten

hi guys..need some help..

Have recently installed a DarkMotor on my el cheapo 80cm thin metal dish bought from lidls a couple of years ago.

It transpires that moving the motor with the dish on is quite a noisy whilst without the dish its pretty quiet

further investigation revealed that the dish actually maginfies the noise of the motor quite auidibly.

so..im thinking of getting a 85cm clear dish..

i see it has a gian of 38.4 at 11.9Ghz and efficienty of 72%.

wonder if you guys have any thoughts on this dish, or comments about your noise levels if you have one motorised!

was also contemplating a fibreglass dish..anything to keep the noise levels down....

so i would be grateful for comments on solid and clear dishes that do not acentuate the likkle noise of the motors.

thanks in advance...

Topper

Welcome to the forum satkitten

Firstly I have to say the size of dish (within reason) is not going to affect the noise level, neither is the choice of using a clear, fibreglass or mesh dish going to make much of a difference. An unloaded motor will not make much noise as the gears are unloaded whether worm, helical of straight cut, but the addition of some weight in the form of a dish will affect the noise created. I use a car wipermotor to drive my dish and that makes a noise but I would not expect anything else to be honest. It all depends upon your definition of a noise

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HB13DISH

Try another motor from Moteck or ask about the quitest motors available.
Can you attach an audio file so that we can also hear it?

rolfw

My Moteck and transparent dish runs quite quietly, as does the transparent dish in my motor installation guide, the plastic does not resonate in the same way as the thin steel. I'm not at home at the moment, otherwise I would make a recording of the dish moving.

Motecks are one of the quieter motors available.

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satkitten

thanks guys,,,ive just finished ma shift,,so when it brightens up more ill play...record the noise....move and play with the dish down the garden a bit..

thanks again

satkitten

ive had a play..moved the dish here n there...now its temp fixed down the bottom...just clears the hill...ok from 19E to 30W....but dang bush/tree in way to 12W but still get stuff....poss lose feeds...though they been weak lately

1.------Sound---Tapping the dish to show its Steel Drum band capabilities
---------http://www.fileden.com/files/2007/11/23/1602331/tapping%20the%20dish%20and%20motor.amr
2.------Sound---moving the motor with NO dish attached....note higher noise when moving back west
--------http://www.fileden.com/files/2007/11/23/1602331/Motor%20no%20dish%201.amr
3.------Sound---moving the motor WITH dish attached
---------http://www.fileden.com/files/2007/11/23/1602331/Motor%20no%20dish%201.amr
4.------Piccy----my steel drum mish, tad rusty now !!
---------http://www.fileden.com/files/2007/11/23/1602331/my%20Steel%20Drum%20Dish%21.jpg
5.-------Piccy---dish to motor connections
----------http://www.fileden.com/files/2007/11/23/1602331/Dish-Motor_connection.jpg
6.------Piccy----showing new lower location down bottom of garden (just gets to look over the hill behind this shot)
--------------------and to the right where it was on shed close to house, and where i would like it if i can get it quiter
---------------------cos have better view east-west
----------http://www.fileden.com/files/2007/11/23/1602331/dish%20on%20pole.jpg
7.------Video---showing movement and noise from 1W to 19E
------------------http://www.fileden.com/files/2007/11/23/1602331/moving%201W%20to%2019E.AVI
8.------Video---showing movement and noise from 19E to 1W...a lot noiser moving this way
------------------http://www.fileden.com/files/2007/11/23/1602331/moving%2019E%20to%201W.AVI
9.------Vido---showing my fat finger tapping the dish...--- note that this dish must be made from the same stuff as a
------------------Caribean Steel Band!!! the dish and the bracket to the motor arm are the noisyest...
--------------perhaps a combination of a crap tin dish and tin bracket are causing the resonations?
--------------http://www.fileden.com/files/2007/11/23/1602331/noisy%20blighter.AVI

kamaleon

got any links or info on that mate? I'd be really keen on getting myself educated on that

mhku

I can hear my Moteck motor/ transparent dish when I move it but it's not what I'd call loud.

If the dish is resonating have you tried sticking rubber pads (sound proofing) to the back of the dish?

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kamaleon

Me too I've got a moteck coupled with an 85cm clear dish. I reckon it resonates a tad less than it used to when it was mounted with a metal one. Thinking of it , it makes nothing but sense as the plastic will absorb the sound better.

satkitten

thanksguys...i think i narrowed it down to a combination of the cheapo tin dish composition, along with the tin azimuth thing connecting the dish to the motor arm....

i am sure we will get the 85cm clear dish soon,

1. because it wont be as resonant
2. because it will look nicer when we look out the window!
3. because the missus says it will be cool to have a plastic dish!!!!!

Topper

There you go, it is hardly precision engineering though

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kamaleon

yo, gotta say... respek!!

nice one mate, you da man!

satkitten

had some plays around the garden....ive deciced its the weight of the steel cheapo dish...and as for some feeds i need the clear one is a tad weak on db gain..so ive just opted today to get a penta 85cm....thanks all again for inputs..