Wanted C120 lnb and freehorn

Chr0nik

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Does anybody have a spare C120 lnb and freehorn that is no longer needed?

I've tried to re-install my prime focus dish and I can't still get more than 91% when pointing at Sky News (Thor 0.8w) and I suspect that the LNB is not working properly.

If you have one that you may no longer need, please let me know.

Thank you.
 

Lazarus

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91% what? Strength? Quality?

How are you measuring it? If it's the Receiver itself, then the metering and AGC characteristics can often be misleading. One receiver I had treated all really big signals as a max of 74% Strength. Others are a little more generous.
 

Chr0nik

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91% what? Strength? Quality?

How are you measuring it? If it's the Receiver itself, then the metering and AGC characteristics can often be misleading. One receiver I had treated all really big signals as a max of 74% Strength. Others are a little more generous.


it's a 120cm PF dish and the strongest reading is 14.71db SNR and 76% AGC - I'm checking straight from an Edision OS mini box. It's odd as the dish is pretty much performing worse than my other 110cm offset dish.
 

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Channel Hopper

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What make of dish feed ?

and model if there is more than one
 

Channel Hopper

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Btw the dish looks badly bent (last image highlights the distortion )
 

Chr0nik

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Btw the dish looks badly bent (last image highlights the distortion )

The feed it's an IRTE feed and the LNB is an Inverto White Tech. I've done the string test and the strings met in the middle without a gap but will do it again tomorrow.
 

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Not worried bout the meeting , take some images of the Reflector where both edges align

Sides, at 45 degrees from the ground and directly underneath.
 

Chr0nik

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Also tried to get other sats and could only catch from 33e to 5w - with 28.2e being 20db and 5w being over 16db - even though I expect them to be this strong, I assume there is something wrong with the elevation / declination
 

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I've always found the skew setting to be critical on 1W. A tiny error can lose a dB or few due to interference from the opposite polarisation.
 

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Btw the dish looks badly bent (last image highlights the distortion )
Also looks like there a lot of dents on the dish surface itself, which won't help.
 

Chr0nik

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Also looks like there a lot of dents on the dish surface itself, which won't help.

It looks like it's dented but I've sprayed painted the back of the dish
 

Chr0nik

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It's really odd, I've taken the dish out and re-aligned it - now I can get most sats from 60e (cannot seem to get 39e and 21.1e) to 5w (cannot get anything past this) but I can't still get more than 14.7db on Sky News (0.8w). Could this be an elevation/declination issue?
 

ozumo

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Try comparing weaker transponders rather than the blazingly strong ones.
 

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It's really odd, I've taken the dish out and re-aligned it - now I can get most sats from 60e (cannot seem to get 39e and 21.1e) to 5w (cannot get anything past this) but I can't still get more than 14.7db on Sky News (0.8w). Could this be an elevation/declination issue?


That, and the depolariser in the feed, unless you have aligned it perfectly, or removed it.

If not sure, I can swop it for the 'ice cream' feed for the cost of postage.
 

a33

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It's really odd, I've taken the dish out and re-aligned it - now I can get most sats from 60e (cannot seem to get 39e and 21.1e) to 5w (cannot get anything past this) but I can't still get more than 14.7db on Sky News (0.8w). Could this be an elevation/declination issue?

But what is the outcome of the string test, with multiple strings?
That looks like an issue, that should be taken care of first?

Greetz,
A33
 

manikm909

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It's really odd, I've taken the dish out and re-aligned it - now I can get most sats from 60e (cannot seem to get 39e and 21.1e) to 5w (cannot get anything past this) but I can't still get more than 14.7db on Sky News (0.8w). Could this be an elevation/declination issue?
i dont know about anyone else, but isnt 14.7db about right for Sky news on 1w - my STB reports 94% / 97% which equates to 14.47db (1.2m dish)
 

Chr0nik

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i dont know about anyone else, but isnt 14.7db about right for Sky news on 1w - my STB reports 94% / 97% which equates to 14.47db (1.2m dish)

The dish was pretty damaged so it's in storage now but on the 120cm Channel Master, I get around 16.23db tops with an Inverto Black Ultra LNB.
 

manikm909

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The dish was pretty damaged so it's in storage now but on the 120cm Channel Master, I get around 16.23db tops with an Inverto Black Ultra LNB.
interesting, even more evidence that my laminas is not performing at optimal
 

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with a Laminas 1200 ,Motorized from 75 ° East to 40 ° West I receive Skynews with 14.3 dB
and I think my Antenna is correctly installed (for an antenna with a motor)
having a reception of more than 14dB is already good I think.
 

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