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Thread: circular lnb to linear lnb convert

  1. #1
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    Question circular lnb to linear lnb convert

    I got this rarely seen lnb, round shape, ku band circular single lnb, lo=10.750 Ghz, Input=11.70-12.75 Ghz, NF=0.5 dB

    seems like the frequency (11.70-) is fine for fta, however the circular polarization is a problem
    thinking of taking off the front cap and removing inside the plates to make it linear
    would this work ?
    thanks !


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  3. #2
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    That lnb is made for "eye-patchers" to get 118w and 119w on the same lnb....not sure if its possible to get linear TPs with it....

  4. #3
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    Had one like that when they first came out.....pile of crap in my opinion

    I gutted mine and took out the dialetic plate in the middle then it worked fine on linear. Found the post
    http://www.satelliteguys.us/106170-d...ml#post1044115
    FOLLOW THE BUZZARDS.....

  5. #4
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    High production circular LNBFs have a little fin inside the feed tube to make 'em work on circular.
    It's cast into the metal.
    If your unit is made with that technology (instead of the teflon plate), then you'd have to remove the metal with a hand grinder.

    So, agreeing with Iceberg, I wouldn't pay real money for one.
    Of course, if you found one for free, by all means take a look.
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  6. #5
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    Thread Starter

    circular lnb to linear convert

    removed white front plastic cap (with a help of heat gun)

    inside is a white piece of plastic , placed in a 45 degree angle
    on both end , a wide "V" shaped cut out, almost as wide as the plastic

    removed plastic piece

    behind at 3 o'clock there is a round metal pin goes horizontally until halfway
    further in, at 6 o' clock there is another round metal pin vertically up about 1/3
    above it, a larger diameter horizontal pin goes all the way across between the metal walls

    I am going to try it out with plastic piece removed, point it to the strong 101w and see what happens .....it was free, nothing to loose

  7. #6
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    That should do it



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