Page 1 of 2 12 LastLast
Results 1 to 20 of 25

Thread: Sharp Dual Output LNB - F0><tel & Aurora

  1. #1
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default Sharp Dual Output LNB - F0><tel & Aurora

    Just got a Sharp dual LNB and set it up to get fo>< and Aurora off the same dish, but for the life of me cant find a skew that gets both working at the same time ? Can anybody else confirm if they have it working and if so, what "O'Clock" do you have the skew at?

    7 O'Clock get F0>< and 4 O'Clock gets Aurora.....in the middle dont work....

    ????
    When In Doubt - Make It Into A Coffee Table.



Look Here ->
  • #2
    Premium Member
    Join Date
    Mar 2009
    Age
    40
    Posts
    498
    Thanks
    67
    Thanked 149 Times in 63 Posts
    Rep Power
    213
    Reputation
    662

    Default

    depends where your located

  • #3
    Senior Member
    beer4life's Avatar
    Join Date
    Feb 2008
    Location
    The Nether World.
    Age
    90
    Posts
    6,375
    Thanks
    1,351
    Thanked 1,452 Times in 1,066 Posts
    Rep Power
    559
    Reputation
    7552

    Wink Optus Satellite Skew.

    Quote Originally Posted by troyboy View Post
    Just got a Sharp dual LNB and set it up to get fo>< and Aurora off the same dish, but for the life of me cant find a skew that gets both working at the same time ? Can anybody else confirm if they have it working and if so, what "O'Clock" do you have the skew at?

    7 O'Clock get F0>< and 4 O'Clock gets Aurora.....in the middle dont work....

    ????

    G'Day,
    All subscribers and Transponders on Optus Satellites employ the same Skew.
    The difference between 7 and 4 O'Clock is 90 Degrees.
    That is the difference between H and V polarities.
    To get all transponders on the one satellite, input the correct frequency and polarity of each Transponder and adjust the LNB for max on either a H or V TP, then all the others will be correct.
    As a rule of thumb, the downlead should be at 7 for the Eastern and 4 O'Clock for the Western States.
    Skew is dependent on essentially Longitude, to a lesser extent on Latitude and to the attitude of the Satellite. Optus are about 40 degrees different to most other Satellites.
    Edit: I know i'ts asking the obvious, but how many downleads do you have?
    Is it a Single/dual output, or a Twin/ dual output LNB?
    Kindest Regards, " The Druid ".

    Last edited by beer4life; 19-11-09 at 08:02 PM.

  • #4
    Administrator
    mtv's Avatar
    Join Date
    Jan 2008
    Posts
    19,893
    Thanks
    7,508
    Thanked 15,066 Times in 6,761 Posts
    Rep Power
    5647
    Reputation
    239305

    Default

    As the vertical Aurora transponders are mostly weaker than the horizontal Foxtel transponders, I peak the skew for Aurora.

    The Foxtel transponders still work fine with that setting.

    In theory, both vertical and horizontal transponders on the same satellite should have the same skew, but in practice, I've found the BER and MER skew adjustment readings on my spectrum analyser are slightly different.

    Not a lot, but enough to make a difference on reception reliability with marginal signals. eg: cloud cover/rain fade.

  • The Following User Says Thank You to mtv For This Useful Post:

    OSIRUS (20-11-09)

  • #5
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Thanks B4L....I'm not in a panic....I'm moving house and am currently pulling my dishes down....I have just thrown this duel LNB on to test how it works...Ive always used singles's before.....

    I had two dish's up, both on C1 one for Aurora and the other for fo><. I have stuck the dual lnb on one of these dishs and moved the cable from the other dish to the dual lnb.

    I then checked the TV and fox was working and aurora down....tweeked it a bit and had it going the other way.....i was yelling out to a 6 year old confirming signal, so from what i gathered we never found a position where both had pictures...

    As for is it a Single/dual output, or a Twin/ dual output LNB?......Ummmmm...didnt know they existed like that.....i probably bought a single dual......that's probably the problem...

    here is a picture

    When In Doubt - Make It Into A Coffee Table.

  • #6
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by mtv View Post
    In theory, both vertical and horizontal transponders on the same satellite should have the same skew, but in practice, I've found the BER and MER skew adjustment readings on my spectrum analyser are slightly different.

    Not a lot, but enough to make a difference on reception reliability with marginal signals. eg: cloud cover/rain fade.

    I thought it was straight forward stuff....ill suss it all out when i relaunch my dishes in a few weeks....but just after mucking aground for 20 minutes was surprised that i could get a hot spot to get them both.....maybe i'll try them on a bigger dish or the move footy shaped (east - west) foxtel dish.....
    When In Doubt - Make It Into A Coffee Table.

  • #7
    Senior Member
    LeroyPatrol's Avatar
    Join Date
    Jan 2008
    Location
    N.E. Vic
    Posts
    16,229
    Thanks
    3,528
    Thanked 4,710 Times in 2,797 Posts
    Rep Power
    1669
    Reputation
    46551

    Default

    Quote Originally Posted by troyboy View Post
    Thanks B4L....I'm not in a panic....I'm moving house and am currently pulling my dishes down....I have just thrown this duel LNB on to test how it works...Ive always used singles's before.....

    I had two dish's up, both on C1 one for Aurora and the other for fo><. I have stuck the dual lnb on one of these dishs and moved the cable from the other dish to the dual lnb.

    I then checked the TV and fox was working and aurora down....tweeked it a bit and had it going the other way.....i was yelling out to a 6 year old confirming signal, so from what i gathered we never found a position where both had pictures...

    As for is it a Single/dual output, or a Twin/ dual output LNB?......Ummmmm...didnt know they existed like that.....i probably bought a single dual......that's probably the problem...

    here is a picture

    sharp dual output. Nice Like 2 lnb's in one
    XCRUISER HDSR600HD twin sat and terrestrial receiver $OOS *
    XCRUISER HDSR385 Avant - sold out$OOS UltraPlus DVB-T and DVB-S2 tuners $49 Remotes $OOS

  • #8
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by LeroyPatrol View Post
    sharp dual output. Nice Like 2 lnb's in one
    Cheers...So Twin / Dual then ?
    When In Doubt - Make It Into A Coffee Table.

  • #9
    Senior Member
    LeroyPatrol's Avatar
    Join Date
    Jan 2008
    Location
    N.E. Vic
    Posts
    16,229
    Thanks
    3,528
    Thanked 4,710 Times in 2,797 Posts
    Rep Power
    1669
    Reputation
    46551

    Default

    in the bad ol days I think one was called a dual....or was it a twin....or a twin dual output or a dual output twin or something. Anyway they don't sell that one anymore otherwise I would be confused!

    .....Leroy
    XCRUISER HDSR600HD twin sat and terrestrial receiver $OOS *
    XCRUISER HDSR385 Avant - sold out$OOS UltraPlus DVB-T and DVB-S2 tuners $49 Remotes $OOS

  • #10
    Senior Member
    beer4life's Avatar
    Join Date
    Feb 2008
    Location
    The Nether World.
    Age
    90
    Posts
    6,375
    Thanks
    1,351
    Thanked 1,452 Times in 1,066 Posts
    Rep Power
    559
    Reputation
    7552

    Talking

    Quote Originally Posted by troyboy View Post
    Cheers...So Twin / Dual then ?
    Just to clarify,
    A normal LNB has one downlead which has dual polarity output. H/V switchable.
    A Twin/Dual output is more or less two of the above in one package.
    These are used either with one or more STBs for independent H or V channel selection and with multiswitches, many STBs.
    You need one of these for twin tuner STBs like the IQ2, but there is nothing to stop you using for a single STB. It's wise to seal off the unused connection.

  • #11
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by beer4life View Post
    You need one of these for twin tuner STBs like the IQ2, but there is nothing to stop you using for a single STB. It's wise to seal off the unused connection.
    [/COLOR]

    Cheers....I have one going to the fo>< box and the other to the humax for aurora....

    but from what people have said here it seems like it should be an issue getting both on separate box's....ill have a play when i relaunch them at my new joint....
    When In Doubt - Make It Into A Coffee Table.

  • #12
    Senior Member
    beer4life's Avatar
    Join Date
    Feb 2008
    Location
    The Nether World.
    Age
    90
    Posts
    6,375
    Thanks
    1,351
    Thanked 1,452 Times in 1,066 Posts
    Rep Power
    559
    Reputation
    7552

    Talking

    Quote Originally Posted by troyboy View Post
    Cheers....I have one going to the fo>< box and the other to the humax for aurora....

    but from what people have said here it seems like it should be an issue getting both on separate box's....ill have a play when i relaunch them at my new joint....
    Not a problem. You should be able to do that with both STBs set with single LNB / 10700. Just peak the Skew on one and should be spot on for the other.

  • #13
    Premium Member

    Join Date
    Jan 2008
    Location
    Central Tablelands of NSW
    Age
    81
    Posts
    13,824
    Thanks
    1,242
    Thanked 3,806 Times in 2,525 Posts
    Rep Power
    1797
    Reputation
    56986

    Default

    I am sure my Austar dish is using one of those Sharp duals connected to a multiswitch (not splitter/divider) 3 legs fo Austar stb's, one leg to the Humax on Aurora and they all live happily together.
    The last I checked, Aurora was still the weakest of the 2 signals on C1 and now D3 is even stronger so I would lean to setting the LNB for the best signal on Aurora.

  • #14
    Senior Member nfnovice's Avatar
    Join Date
    Jan 2008
    Posts
    1,430
    Thanks
    261
    Thanked 336 Times in 213 Posts
    Rep Power
    281
    Reputation
    1840

    Default

    dual polarity = Horizontal and Vertical
    twin output = two cables
    troy boy - yours is dual/twin = H + V + 2 Cables
    you should get aurora and foxtel on that on one dish
    Dm500, DM5620, DM600 x2, DM7000 x1, DM7020, DM7025, DM800, VU+DUO and a partridge in a pear tree
    All it takes for evil to prevail is for good men to do nothing

  • #15
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by nfnovice View Post
    dual polarity = Horizontal and Vertical
    twin output = two cables
    troy boy - yours is dual/twin = H + V + 2 Cables
    you should get aurora and foxtel on that on one dish
    Thanks Mate.....I'll tweek it to Aurora when I get into my new joint and see how it goes, at the moment it sitting on a Motek thats not hooked up (as I bypassed it to try the twin outputs), so my setup is a little bodgy ATM as Im dismantling to move house....


    Quote Originally Posted by gordon_s1942 View Post
    I am sure my Austar dish is using one of those Sharp duals connected to a multiswitch (not splitter/divider) 3 legs fo Austar stb's, one leg to the Humax on Aurora and they all live happily together.
    The last I checked, Aurora was still the weakest of the 2 signals on C1 and now D3 is even stronger so I would lean to setting the LNB for the best signal on Aurora.
    These shouldnt need a multiswitch or any type of switch for that matter, 2 cables straight down, one cable in each box...
    When In Doubt - Make It Into A Coffee Table.

  • #16
    Senior Member
    LeroyPatrol's Avatar
    Join Date
    Jan 2008
    Location
    N.E. Vic
    Posts
    16,229
    Thanks
    3,528
    Thanked 4,710 Times in 2,797 Posts
    Rep Power
    1669
    Reputation
    46551

    Default

    my sharps are a dual polarity dual output ;P
    XCRUISER HDSR600HD twin sat and terrestrial receiver $OOS *
    XCRUISER HDSR385 Avant - sold out$OOS UltraPlus DVB-T and DVB-S2 tuners $49 Remotes $OOS

  • #17
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by LeroyPatrol View Post
    my sharps are a dual polarity dual output ;P
    Mine is to .... Isnt It ..... I think what B4L said above is that most of them are now....its only older LNB's that were dual/single
    When In Doubt - Make It Into A Coffee Table.

  • #18
    Senior Member
    beer4life's Avatar
    Join Date
    Feb 2008
    Location
    The Nether World.
    Age
    90
    Posts
    6,375
    Thanks
    1,351
    Thanked 1,452 Times in 1,066 Posts
    Rep Power
    559
    Reputation
    7552

    Talking

    Quote Originally Posted by troyboy View Post
    Mine is to .... Isnt It ..... I think what B4L said above is that most of them are now....its only older LNB's that were dual/single
    You've misunderstood.
    Normal 10700 LNBs have only a single output, but dual Polarity. ie: A single cable that is switched H & V by the 18 & 13 Volts from the box.
    You only need the Twins if you have twin tuners (IQ2) or multiple STBs.

  • #19
    Senior Member troyboy's Avatar
    Join Date
    Jan 2008
    Posts
    834
    Thanks
    93
    Thanked 74 Times in 35 Posts
    Rep Power
    232
    Reputation
    375

    Default

    Quote Originally Posted by beer4life View Post
    You've misunderstood.
    Normal 10700 LNBs have only a single output, but dual Polarity. ie: A single cable that is switched H & V by the 18 & 13 Volts from the box.
    You only need the Twins if you have twin tuners (IQ2) or multiple STBs.
    OK I have two outputs on the LNB...my understanding is that I should be able to receive V & H on both of them....

    Example.....

    Output #1 goes to a humax and gets signals on both V & H

    and

    Output #2 goes to a Topfield and gets both V & H

    Correct ?
    When In Doubt - Make It Into A Coffee Table.

  • #20
    Senior Member
    LeroyPatrol's Avatar
    Join Date
    Jan 2008
    Location
    N.E. Vic
    Posts
    16,229
    Thanks
    3,528
    Thanked 4,710 Times in 2,797 Posts
    Rep Power
    1669
    Reputation
    46551

    Default

    I thought twin output had H polarity on one output and V polarity on the other?

    Troyboy you've got the correct LNB for the job anyway.
    XCRUISER HDSR600HD twin sat and terrestrial receiver $OOS *
    XCRUISER HDSR385 Avant - sold out$OOS UltraPlus DVB-T and DVB-S2 tuners $49 Remotes $OOS

  • Page 1 of 2 12 LastLast

    Similar Threads

    1. How to install 2x4 Multiswitch to dual output lnb ?
      By afzal_q in forum Free to Air , C Band and Feeds
      Replies: 15
      Last Post: 14-11-09, 02:35 PM
    2. Dual output LNB and IQ 1 box
      By turbogtst in forum Satellite TV General
      Replies: 17
      Last Post: 20-07-09, 02:58 PM
    3. Sharp Dual LNB
      By nighthawks23 in forum Newbie Satellite
      Replies: 10
      Last Post: 06-01-09, 11:00 PM
    4. wtd cheap dual output agp card
      By Philquad in forum Buy Sell and Trade
      Replies: 0
      Last Post: 17-10-08, 09:29 PM
    5. WTB:Dual Output LNB + Multiswitch 3 in 4-5 Out
      By urban_s0ulja in forum Buy Sell and Trade
      Replies: 6
      Last Post: 26-01-08, 04:10 PM

    Bookmarks

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •