[amsat-bb] Re: ARR Preamp Documentation

["John Price" <n4qwf1@xxxxxxxxx>]

ARR Address

Ar2 Communications Products
P.O. Box 1242
Burlington, CT. 06013

Phone 860-485-0310
FAX  860-485-0311

Internet WWW.advancedreceiver.com

I bought replacement transistor from them and they were first class to
deal with. Good luck. 73's << John

On 1/2/07, Mark Brueggemann K5LXP <brueggemail-k5lxp@yahoo.com> wrote:
>
> Poked around the web for a while and didn't see any downloadable
> data on ARR preamps.  I am trying to find out what the exact
> DGFET/BPT/GaAsFET the 144 and 430 models use, and if the
> DGFETs/BPT/GaAsFET's are interchangeable.  I anticipate blowing
> them up when I get my sat setup going soon, and I would like to order
> up some spare devices (exact replacements or suitable substitutes).
> I have the PxxxVDG's but I'm reading that the DGFET and bipolar
> versions are less ESD fragile than the GaAs ones albiet less gain.
> Is there an advantage to one over the other in practical ham
> satellite applications?
>
> Thanks,
>
> Mark K5LXP
> Albuquerque, NM
> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>


-- 
<<<<<      N4QWF Amateur Radio Operator        >>>>>
<<<<< AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS >>>>>
<<<<<     Internet Email N4QWF@AMSAT.ORG     >>>>>
<<<<<         Formerly KC4AHW VK3FEZ         >>>>>
<<<<<           Amsat Member #27845          >>>>>
<<<<<     LON -79.25 LAT 37.45 Grid FM07            >>>>>
<<<<<   From the Foothills of the Blueridge       >>>>>
_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb