[amsat-bb] Re: ARR Preamp Documentation

[John Price]

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 at 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
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