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Old May 4th 09, 10:52 PM posted to rec.radio.amateur.homebrew
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First recorded activity by RadioBanter: Nov 2006
Posts: 58
Default Frequency doubling: Is bandpass filtering needed?

Joel Koltner wrote:
"Joerg" wrote in message
...
I don't agree with Steve there. In the early 90's I regularly carried my
trusty old Compaq Contura 410 on longhaul flights.


...and I bet your 50MHz 486SX2 seemed just as fast with the software you were
using at the time as your 1.6GHz netbook does now? ;-)


Ok, strictly DOS on business trips. There was no need for more, and
besides PDF viewing and stuff there still isn't. OrCad-SDT, MS-Word 5.0,
CompuServe email client, PSpice, some filter simulators, beam profile
calculator. What more could mankind want?


And I sure was glad it allowed up to 6 hours on a battery charge. Did a lot
of schematics, module specs and so on. Seen many business execs with their
high faluting IBM laptops fold'em because their batteries were at zilch,
grumpily watching me plugging along until 2nd mealtime.


Some of them might have considered the shorter battery life a *feature*, you
know. "Well, I did what I could on the annual report until the battery died,
at which point I decided to see how good the stewardesses were at making
martinis!"


Oh, I had my brewskys, cognac and the occasional bloody mary while using
the laptop. Of course, nowadays it's easier since I have that
spill-proof Durabook laptop that is almost mil-spec. The old Compaq
began to physically disintegrate after roughly 1/2 million miles,
courtesy of a few really rough flights and landings. At the end the
battery kept falling out of it.

--
Regards, Joerg

http://www.analogconsultants.com/

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