[amsat-bb] Re: Rooftop Antenna Labs?
Edward R Cole
kl7uw at acsalaska.net
Wed Apr 28 23:52:11 PDT 2010
At 04:49 PM 4/28/2010, Franklin Antonio wrote:
>At 05:25 PM 4/28/2010, Robert Bruninga wrote:
> >I may have an opportunity to begin planning for a major building
> >upgrade at my school and want to propose a modern root-top
> >antenna lab.
>Most antenna test labs now use anechoic chambers rather than rooftops.
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In 1966 I started my career as an R&D technician (took a leave from
school for a couple years). We built asw weapons (i.e. sonobuoys) in
an old brick three story factory with a flat roof. They test dropped
the buoys over the side of the building 30-feet into a large vat of
water, but the roof was the antenna test range. There I ran tests on
VHF antennas. Not a very sophisticated range but definitely "hands
on", real RF, real measurements. An engineers calculator was a slide
rule, no computers then; fancy computer simulation was unknown.
Mostly, I did troubleshooting of the engineering prototypes and
finding fixes. Those went back to the engineers to fine tune their
design. I quit that and returned to college in summer 1968 and
landed a job with Hughes Aircraft in CA. 1971 found me working at
Goldstone at the Microwave Test Facility also known as the "antenna
range". The rest they say is history.
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