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Re: Mode L Transverter



Hi all,
Try this: http://www.ham-radio.com/sbms/sd/1296xvdoc.htm

Also another article on 1 Watt PA from Globalstar Round Boards, just delete 
everything from last / to end.

Art, KC6UQH
----- Original Message ----- 
From: "Gary "Joe" Mayfield" <gary_mayfield@HOTMAIL.COM>
To: <amsat-bb@amsat.org>
Sent: Sunday, October 09, 2005 7:16 AM
Subject: Re: [amsat-bb] Mode L Transverter


> When I was at Dayton, SSB said they did not plan to import any more of
> these, and Down East told me their new design would not support operation 
> at
> 1268 only 1296.  Does anyone know if this has changed?  Both outfits have
> listed these on their web sites for a long time - apparently that does not
> mean they are available.  In their defense these are small outfits and
> updating their web site is probably not their top priority.
>
> Please keep the list posted as to what you find, as many of us are 
> looking!
>
> 73,
> Joe
> kk0sd
>
> ----- Original Message ----- 
> From: "Edward R. Cole" <al7eb@acsalaska.net>
> To: <kd6ire@sbcglobal.net>; <rnutter@networkref.com>; <amsat-bb@amsat.org>
> Sent: Friday, October 07, 2005 9:35 PM
> Subject: RE: [amsat-bb] Mode L Transverter
>
>
>> Ron,
>>
>> Also look at Downeast Microwave (DEMI):
>> 144/1268 Tx converter with 20mw output (assembled&tested) ... $280
>> 2330PA 30w linear with 25mw input (probably 24w out when driven by the
>> converter) ... $200
>> total ...$480
>>
>> The TekSharp converter and 15w PA total $530
>>
>> But you might get by with the 1268-144TX 3w converter* from DEMI ...$ 345
>> *Note you might need a higher gain 1.2 GHz antennas to achieve enough
>> uplink signal with the 3w model.
>>
>> As yet there has been no link analysis for P3E or Eagle so it is hard to
>> judge what power and antenna gain one needs.
>> For AO-51 I suspect 3w would do fine if you were to mount the unit at the
>> antenna.  Coax loss is severe at 1.2 GHz so many chose the antenna-mount
>> location to avoid this.
>>
>> Also Kuhne Engineering makes a 144/1268 converter which is available in
> the
>> USA from SSB Electronics.
>>
>> 73's Ed - KL7UW
>> PS:  I have the original DEMI 144/1268 15w Tx converter (no longer
> available)
>> http://www.qsl.net/al7eb/sat.htm
>>
>>
>> At 10:10 AM 10/7/2005 -0700, Don Ferguson wrote:
>> >Ron,
>> >
>> >You might check out the upconverter and power amps for 1.2ghz at the
>> >TekSharp site. 1.2ghz is normally only used as an uplink so this might 
>> >be
> a
>> >good solution.
>> >
>> >http://www.plumdragon.com/teksharp/hr_AO-40_products.htm
>> >
>> >73,
>> >Don
>> >Kd6ire
>> >
>> >
>> >> -----Original Message-----
>> >> From: owner-AMSAT-BB@amsat.org [mailto:owner-AMSAT-BB@amsat.org] On
> Behalf
>> >> Of rnutter@networkref.com
>> >> Sent: Friday, October 07, 2005 7:16 AM
>> >> To: amsat-bb@amsat.org
>> >> Subject: [amsat-bb] Mode L Transverter
>> >>
>> >> With the luck I have had working AO-51 mobile in Mode V/S, I started
>> >> looking for a Mode L transverter.  Does anyone know of such a beast ?
>> >> Since my fabricating skills are a little lacking, I would hope for
> either
>> >> a commercial option or a kit with really good instructions and good
>> >> quality.
>> >>
>> >> Ron
>> >> KA4KYI
>> >> ----
>> >> Sent via amsat-bb@amsat.org. Opinions expressed are those of the
> author.
>> >> Not an AMSAT member? Join now to support the amateur satellite 
>> >> program!
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>> >----
>> >Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
>> >Not an AMSAT member? Join now to support the amateur satellite program!
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>> ----
>> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
>> Not an AMSAT member? Join now to support the amateur satellite program!
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> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
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----
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