1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Experimenting With LNB's

Discussion in 'DISH SETUP: Single sat, Multi-Sat & Motorised' started by Tony1A, Aug 12, 2017.

  1. Tony1A

    Tony1A Never going back to Sky TV. Ever!

    Joined:
    Jul 22, 2013
    Messages:
    699
    Likes Received:
    459
    Trophy Points:
    63
    Location:
    Somewhere In County Durham
    My Satellite Setup:
    Humax HDR1100S Freesat Recorder. Technomate 5402 HD box with Gibertini 1m motorised dish. Triax TD78 for Freesat. Triax TD64 for Freesat to 3 rooms. 2 Panasonic Freeview+ HD recorders.
    My Location:
    North-East England, UK
    HELLO ALL!!

    Has anyone on this forum tried experimenting with a 1m dish and motor using different LNBs? I was just thinking about this and it would be interesting to find out. If so, did the results fair better, the same or worse than Inverto Black Ultra?

    Just a thought! :D
     
  2. Analoguesat

    Analoguesat Administrator Staff Member

    Joined:
    Jul 26, 2003
    Messages:
    44,176
    Likes Received:
    7,155
    Trophy Points:
    113
    Location:
    Scottish Borders
    My Satellite Setup:
    TM 5402HD
    Skybox F3
    Sky+ UK.
    My Location:
    Scottish Borders
    There are a couple of threads where our members have built fabulous contraptions that rotates various lnb's onto the main focal point at the end of the arm. This is mainly to allow Ka- Ku- & C-band though rather than just to test various lnbs.

    The principle is the same though.
     
    RimaNTSS, Journey and Tony1A like this.
  3. Lazarus

    Lazarus Tout Rond Bon Oeuf Staff Member

    Joined:
    May 29, 2009
    Messages:
    22,940
    Likes Received:
    6,199
    Trophy Points:
    113
    My Satellite Setup:
    80cm Motorised.
    Several small Dishes.
    Much else.
    My Location:
    North York Moors
    Yes, Tony, most of us I guess.

    The thing is, headline specs for Noise Figure, Gain, Cross-Polarity Rejection etc don't amount to a hill of beans: The quoted figures normally only apply over a part of Ku band and the plot of each characteristic vs. frequency is by no means flat.

    As the peaks in performance will vary between LNBs, swopping out an LNB to achieve improved performance in a desired part of the band is a common practice.

    Everything is a compromise!
     
    RimaNTSS, Journey and Tony1A like this.
  4. Channel Hopper

    Channel Hopper Suffering fools just so you don't have to Staff Member

    Joined:
    Jan 1, 2000
    Messages:
    22,602
    Likes Received:
    4,449
    Trophy Points:
    113
    My Satellite Setup:
    A little less analogue, and a lot more crap.
    My Location:
    UK South East
    There are also other considerations to take into account. Three that spring to mind

    There will be LNBs with feeds that are better matched to a particular dish shape.
    Selecting one satellite , or the broadcast spectrum over another will affect the results,and
    Some LNBs provide better results with long runs of cable, some with shorter.

    With the third, there is also the matching of the receiver to the LNB , along with the user interface when selecting a transponder to scan.
     
    RimaNTSS and Tony1A like this.
  5. sonnetpete

    sonnetpete Grumpy Old Moderator Staff Member

    Joined:
    Dec 13, 2008
    Messages:
    6,759
    Likes Received:
    2,604
    Trophy Points:
    113
    My Satellite Setup:
    See signature
    My Location:
    Normandy, France
    Agree absolutely. When I had my 1m Gibertini motorised I tried differing LNB's, before settling on the IBU as the best overall solution. True, one or two differing LNB's would be marginally better on certain frequencies but I'd stand by the Black Ultra.
     
    drats, RimaNTSS and Tony1A like this.
  6. Lazarus

    Lazarus Tout Rond Bon Oeuf Staff Member

    Joined:
    May 29, 2009
    Messages:
    22,940
    Likes Received:
    6,199
    Trophy Points:
    113
    My Satellite Setup:
    80cm Motorised.
    Several small Dishes.
    Much else.
    My Location:
    North York Moors
    I had decent results with an IBU, but (as per many other reports) it failed after two years.

    I replaced it with a Vision Twin and get even better performance .... whether the LNB is "better" is a moot point, but it certainly integrates better with my system.
     
    Tony1A likes this.
  7. william-1

    william-1 Super Moderator Staff Member

    Joined:
    Jul 2, 2005
    Messages:
    5,631
    Likes Received:
    7,547
    Trophy Points:
    113
    Location:
    Epping Forest
    My Satellite Setup:
    100cm Gibertini + IBU 0.2 Lnb
    (52.5 east to 45 west)
    TM6902HD A/B switch TM5502HD >>V8 Golden-1

    88cm Mesh 0.1 Lnb
    (53 east to 45 west)
    TM5302HD A/B switch TM5402HD M1 >>V8 Golden-2

    45cm + Quad Lnb = Manhattan Freesat HD
    My Location:
    Epping Forest Essex
    I have tested approximately 10 Lnb's on my 100cm dish & the IBU came out top on all tests a close 2nd was the MTI High Line AP8-T2NRC

    Here is my top 5 Low Noise Lnb's:-

    1/ Inverto Black Ultra HGLN 0.2
    2/MTi High Line AP8-T2NRC 0.2
    3/Smart Titanium 0.1
    4/Technomate TM-1 0.1
    5/MTi Blue Line 0.3
     
    Tony1A and Lazarus like this.
  8. Tony1A

    Tony1A Never going back to Sky TV. Ever!

    Joined:
    Jul 22, 2013
    Messages:
    699
    Likes Received:
    459
    Trophy Points:
    63
    Location:
    Somewhere In County Durham
    My Satellite Setup:
    Humax HDR1100S Freesat Recorder. Technomate 5402 HD box with Gibertini 1m motorised dish. Triax TD78 for Freesat. Triax TD64 for Freesat to 3 rooms. 2 Panasonic Freeview+ HD recorders.
    My Location:
    North-East England, UK
    An interesting read gentlemen! I am thinking of conducting my own tests as I have my own private stock of LNB's (all new, boxed). GT Sat, Smart Titanium, MTI...and a few more. Quad, dual, and single ones. Been toying with the idea for little while. :)
     
  9. Lazarus

    Lazarus Tout Rond Bon Oeuf Staff Member

    Joined:
    May 29, 2009
    Messages:
    22,940
    Likes Received:
    6,199
    Trophy Points:
    113
    My Satellite Setup:
    80cm Motorised.
    Several small Dishes.
    Much else.
    My Location:
    North York Moors
    You could say ..... the Ibu is profen ..... :-biglaugh




    Laugh?


    I thought I'd never start.
     
    Tony1A and Chris1979 like this.
  10. sonnetpete

    sonnetpete Grumpy Old Moderator Staff Member

    Joined:
    Dec 13, 2008
    Messages:
    6,759
    Likes Received:
    2,604
    Trophy Points:
    113
    My Satellite Setup:
    See signature
    My Location:
    Normandy, France
    You've given me a headache...
     
    Chris1979, Tony1A and Lazarus like this.
  11. Channel Hopper

    Channel Hopper Suffering fools just so you don't have to Staff Member

    Joined:
    Jan 1, 2000
    Messages:
    22,602
    Likes Received:
    4,449
    Trophy Points:
    113
    My Satellite Setup:
    A little less analogue, and a lot more crap.
    My Location:
    UK South East
    This thread is 'aspirin' to be the worst for puns this week.
     
    Chris1979 and Tony1A like this.
  12. Lazarus

    Lazarus Tout Rond Bon Oeuf Staff Member

    Joined:
    May 29, 2009
    Messages:
    22,940
    Likes Received:
    6,199
    Trophy Points:
    113
    My Satellite Setup:
    80cm Motorised.
    Several small Dishes.
    Much else.
    My Location:
    North York Moors
    :rolleyes:








    :D
     
    Chris1979 and Tony1A like this.
  13. st1

    st1 SMC-dish aficionado

    Joined:
    Aug 19, 2009
    Messages:
    2,411
    Likes Received:
    2,346
    Trophy Points:
    113
    My Satellite Setup:
    Mostly SMC dishes pointing at 28.2E
    My Location:
    Nordsjælland, Denmark
    Or, perhaps is the end of a long and painfull process?
     
    Tony1A likes this.
  14. Tony1A

    Tony1A Never going back to Sky TV. Ever!

    Joined:
    Jul 22, 2013
    Messages:
    699
    Likes Received:
    459
    Trophy Points:
    63
    Location:
    Somewhere In County Durham
    My Satellite Setup:
    Humax HDR1100S Freesat Recorder. Technomate 5402 HD box with Gibertini 1m motorised dish. Triax TD78 for Freesat. Triax TD64 for Freesat to 3 rooms. 2 Panasonic Freeview+ HD recorders.
    My Location:
    North-East England, UK
    ENOUGH ALREADY! :-rofl2:-rofl2
     
    st1 likes this.
  15. RimaNTSS

    RimaNTSS Super Moderator Staff Member

    Joined:
    Jan 7, 2009
    Messages:
    3,956
    Likes Received:
    4,228
    Trophy Points:
    113
    My Satellite Setup:
    Some SAT-related hardware.
    My Location:
    N-E from Riga
    If that is not enough than what about that: Bigger dish will always be better with average LNB than smaller dish with the best LNB! :-rofl2
     
    Tony1A likes this.
  16. Channel Hopper

    Channel Hopper Suffering fools just so you don't have to Staff Member

    Joined:
    Jan 1, 2000
    Messages:
    22,602
    Likes Received:
    4,449
    Trophy Points:
    113
    My Satellite Setup:
    A little less analogue, and a lot more crap.
    My Location:
    UK South East
    No need to be so inflammatory.
     
    Tony1A likes this.
  17. Tony1A

    Tony1A Never going back to Sky TV. Ever!

    Joined:
    Jul 22, 2013
    Messages:
    699
    Likes Received:
    459
    Trophy Points:
    63
    Location:
    Somewhere In County Durham
    My Satellite Setup:
    Humax HDR1100S Freesat Recorder. Technomate 5402 HD box with Gibertini 1m motorised dish. Triax TD78 for Freesat. Triax TD64 for Freesat to 3 rooms. 2 Panasonic Freeview+ HD recorders.
    My Location:
    North-East England, UK
    I meant about the jokes! :D
     
  18. st1

    st1 SMC-dish aficionado

    Joined:
    Aug 19, 2009
    Messages:
    2,411
    Likes Received:
    2,346
    Trophy Points:
    113
    My Satellite Setup:
    Mostly SMC dishes pointing at 28.2E
    My Location:
    Nordsjælland, Denmark
    (Ibuprofen -> anti-inflammatory. Geddit?)

    Perhaps you could say that applying the Ibu(profen) to an antenna improves on the parab(cetam)olic swelling of the reflector?

    (No, that's probably taking it too far. Forget it.)
     
    Chris1979 and Lazarus like this.

Share This Page

Click here to support our sponsors