Triax LNB feed arm problems

sonnetpete

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Laminas 1.2M fibre dish with an IBU, on a Clarke Tech USALS motor, covering 57E - 24.5W to an Octagon SX88. Displayed on a 20" Dyon LED TV.

Seperate 80 cm dish on 28E with a Humax Freesat for SWMBO.
Free Sat V8 meter. Sony Bravia 46" LCD, Sony BluRay and Home Cinema.
My Location
Normandy, France
Recently I was tinkering about with my TD88 which has a Triax multi sat bar which held eight LNB's. Now that we have stronger signals from 7°W I decided that I no longer needed 26°E on this dish and removed the LNB (reception of Badr was always tricky due to closeness of 28°E). Using the now spare LNB holder I realigned for 28°E as near to dish focus as I could. Surprisingly the results were quite poor (only in the region of 50 - 60% SNR)

Now most Triax users have grown to "love" the idiosyncratic LNB support arm. Through experimentation (ok, pushing it up and down) I found that I could gain 10 -15% SNR. However having no spare matchsticks at the moment I searched around for a more suitable and durable object to insert in the space between the arm and the dish. (the weight of the multi sat and LNB's made the problem much worse).

Luckily I came across a very handy piece of plastic which was both the right size and thickness. Being loathe to throw out anything, I had some spare fittings (spacers brackets etc.) from my IKEA kitchen units. One of the spacers fits perfectly and has proved a really excellent solution. I now have an extremely healthy 99% SNR on some 28°E transponders.
 

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excollier

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Chris76 showed me a neat solution, a penny coin or even a 5p coin, made quite an improvement

Sent from my HTC Tattoo using Tapatalk
 

PaulR

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Tchhhh, wastrel. Pete's solution is zero cost!
 

sonnetpete

Grumpy Old Moderator and quiz inquisitor..
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My Satellite Setup
Laminas 1.2M fibre dish with an IBU, on a Clarke Tech USALS motor, covering 57E - 24.5W to an Octagon SX88. Displayed on a 20" Dyon LED TV.

Seperate 80 cm dish on 28E with a Humax Freesat for SWMBO.
Free Sat V8 meter. Sony Bravia 46" LCD, Sony BluRay and Home Cinema.
My Location
Normandy, France
PaulR said:
Tchhhh, wastrel. Pete's solution is zero cost!

Well, splitting hairs the kitchen units were quite expensive LOL but as the pieces were left over (I can never understand why there are bits left over) I guess it is zero cost.
 

sonnetpete

Grumpy Old Moderator and quiz inquisitor..
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My Satellite Setup
Laminas 1.2M fibre dish with an IBU, on a Clarke Tech USALS motor, covering 57E - 24.5W to an Octagon SX88. Displayed on a 20" Dyon LED TV.

Seperate 80 cm dish on 28E with a Humax Freesat for SWMBO.
Free Sat V8 meter. Sony Bravia 46" LCD, Sony BluRay and Home Cinema.
My Location
Normandy, France
excollier said:
Chris76 showed me a neat solution, a penny coin or even a 5p coin, made quite an improvement

I've got 14 left if you want to make me an offer over 5p each LOL
 

satelliteman

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sonnetpete said:
I've got 14 left if you want to make me an offer over 5p each LOL

.... lol :D ;)
 
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