2 Jan
2007
2 Jan
'07
6:15 p.m.
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