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Thread: 1 meter primestar

  1. #16
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    Try setting up the dish on a satellite with Ku LNB and arms as they were, then put in temporary new arms and work on them till you get the signal right on the satellite you were on--that way you know the LNB is at the same spot as the old. I did something like that to get the Ku band at max with C/Ku band LNB (but it might also be why I lost some of the signals I was getting on C band--the max signal on C band is not always the best for Ku from what I can tell though that might be due to where I have dish rather than intrinsic issue).

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    I have the pole marked for 103w ku.
    I will make sure it is aimed with the old arm/lnb then proceed with the ku/C lnb on ku to see what is needed.
    Would be nice to have a receiver with the signal beep function.I have to use my old openbox s10 with euro firmware on it to get the beep.Years ago I jury rigged the lnb on but the elevation was off by 4 degrees.

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    Yep, beep function or spectrum analyser is easiest if you don't bring TV signal out to the dish in some way. I might have gone with 101 degree and used old prov box, or 110 and the active locals TP--those prov sats are so strong that it makes things easy to peak.
    The C band use of these little dishes can be strange--issues that might make getting Ku band hard (like off-axis use by a number of degrees elevation) might not be an issue on C band and might even be a good thing. For a while I was only trying for C band and the way I got peak was very odd at times--the dish was off to one side of the peak signal of the strongest TP because that reduced other satellites signal getting in on the TP I wanted, LNB was pointed very high on the dish and swung to one side of the dish (don't know why the TP I wanted was clearer there). The setup for strongest Ku band really screwed up C band signals as far as I can tell though spectrum analyser shows the C band signal are there and peaked.

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    they say the dual c/ku lnb's aren't really the best for ku.
    I found extra aluminum screen-house pipes to play with and dug out my fathers old tubing bender.
    I noticed if I can get a brass 1/2 inch fitting I might be able to use brass/copper pipe for the arm.
    The copper fitting outside diameter is too small for a snug fit in the hole.
    I have 4 aluminum pipes that size and some fatter,and some rectangular stock to play with.
    Tons of fun.My sonicview 4000 has the beep function,I was playing with it last night on ku.

  5. #20
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    My experience in playing around with a 1 meter BUD is to use a "C" band LNB only, the combo "C""kU" LNB's fall short on the gain, and I also found out that they only work good on the strongest "C" band satellites, satbeams.com has a estimated signal strength for your location(if your logged in) on most "C" and "kU" band satellites.
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    I know lyngsat isn't the best in the world,but how accurate are the eirp's listed?

  7. #22
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    If you look at this photo, you can see the estimated "C" band signal for SES 1, the larger this number (dBW) the stronger the signal.



    All this varies by location and satellite.
    ♫♫♫ I知 a lumberjack and I知 OK ♫♫♫ I drink all night and sleep all day. ♫♫♫



    Coming soon to a crop circle near you.....

    There is a 66 and third % chance that I'm on the right planet...

    "I'm happier then a Jackalope in a balloon factory"

    "First rule of testing satellites"
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  8. #23
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    The ERP's are done first by calculation and estimation on paper, then checked at certain locations by actual field measurements using a spectrum analyzer and a standard 10 foot dish.(for "C" band)

    So I would say that they are within 5% of what is posted, and all this can vary as it's all determined by what equipment your using, what size dish you have, what LNB is being used, how long the coax is from LNB to receiver and how accurate the dish is aligned.
    Last edited by Terryl; 04-09-2017 at 09:12 PM.
    ♫♫♫ I知 a lumberjack and I知 OK ♫♫♫ I drink all night and sleep all day. ♫♫♫



    Coming soon to a crop circle near you.....

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    "Can you HIDE it"?

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    I was eventually going to try for 43w from southern new england.

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    I have both dual C/Ku and just C band LNB, both get about the same results on C band. Once Ku band is peaked, the combo LNB did just fine on Ku too.
    The small dish will do best with satellites directly to the south of you--the azmuth diff between sats to the south are actually greater than 2 degrees, so the big beamwidth of a small dish is not as big a factor. Course they tend to put the peak signal for Conus in the center of USA, so you will not have great signal in NE--that might be a bigger factor! You need all the signal you can get!

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  12. #26
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    couldn't get the lnb to work at all.
    I used my 80cm motorized dish as an experiment
    I aimed at 83w ku with the ku only lnb to make sure the dish was aimed.
    Bolted on the bsc621-2 and nothing.
    I don't think it's a good choice for this approach.

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    I have 621 LNB works OK for me the best C Band LNB is the Titanium, not all the C Band LNB don't work well on OFFSET dish, try moving the LNB closer to the Dish, I have Channel Master 6' fiberglass OFFSET and the best quality signal is with LNB closer to Dish and the Conical Scalar ring also needs to move back and forth to get the best signal, skew is also another factor.

  14. #28
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    I will try again tomorrow with 91w
    I will enter the tp info manually and try to aim that way instead of relying on ku

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  16. #29
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    Quote Originally Posted by zelig View Post
    I will try again tomorrow with 91w
    I will enter the tp info manually and try to aim that way instead of relying on ku
    You mentioned using SonicView 4000 for the beep sound but remember if you are aiming dish to HD transponder the SonicView will not pickup that TP.

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    kU on 83 West??? What channels did you find on 83 West as most are intermittent feeds, you sure you didn't hit 82 West by mistake, if so then there are no "C" band transponders on 82W.

    I would try 97West as it has some very strong "kU' band TP's and some "C" band TP's, it would be a better choice to try it out.
    Last edited by Terryl; 04-11-2017 at 01:01 AM.
    ♫♫♫ I知 a lumberjack and I知 OK ♫♫♫ I drink all night and sleep all day. ♫♫♫



    Coming soon to a crop circle near you.....

    There is a 66 and third % chance that I'm on the right planet...

    "I'm happier then a Jackalope in a balloon factory"

    "First rule of testing satellites"
    "If its working fine now, then don't mess with it"

    "Second rule of testing satellites"
    "If you did mess with it, and now it doesn't work, can you blame someone else?"

    "Third rule of testing satellites"
    "If you did mess with it, and it doesn't work now, and you can't blame someone else"
    "Can you HIDE it"?

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