[NLRS] DirecTV/Cal Amp feed

[David Palm]

You guys are the best!  Thanks for all the great responses.  I cannot
believe I'm all psyched for 10 GHz.  This is impossible!

73,

David  W9HQ


On 10/1/09, Donn - WA2VOI/0 <wa2voi at mninter.net> wrote:
>
> Hi David.
> As Jerry said, not a long shot at all.
>
> Depending on the exact type, they convert easily to being a feed for suing
> the DSS dishes on 10GHz.  The one Jerry had is the easiest to convert; the
> other very popular type has a metal septum (ridge) running along the
> interior of the waveguide.  You CANNOT use a drill to remove this type of
> septum... you need an end mill (and a drill press -- do NOT try to drill out
> either type with a hand drill.  At BEST you'll destroy the feed and at
> worst, you'll hurt yourself up to and maybe including broken bones.)
>
> There is a third, somewhat newer type that uses a "septum polarizer" that
> is NOT CONVERTABLE to a 10GHz feed.  This type starts out as round waveguide
> and ends up as two rectangular waveguides, both of which will not support
> 10GHz signals.
>
> The only way to tell which type is which is to remove the white plastic
> front cap and look inside.
>
> I know of at least one local who has done conversion to a 10GHz receive
> pre-amp and it measured quite well at Microwave Update last year.  I don't
> know the details, though.  I suspect that harvesting and using the parts
> would be a lot more difficult as we don't know anything about them.
>
> 73 Donn
> WA2VOI/0
>
>
> ----- Original Message ----- From: "David Palm" <thepalmhq at gmail.com>
> To: "NLRS List" <nlrs at mailman.qth.net>
> Sent: Thursday, October 01, 2009 4:59 PM
> Subject: [NLRS] DirecTV/Cal Amp feed
>
>
>
>>
>> This is a long shot, but is there anything that can be done with this
>> thing
>> for ham usage?  Somebody just gave me a few of them:
>>
>>
>> http://www.sadoun.com/Sat/Products/DirecTV/Cal-Amp-150517-DSS-Dual-LNBF.htm
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>