[time-nuts] Re: The Collapse of Puerto Rico’s Iconic Telescope [April 5th, 2021 New Yorker]

[Dana Whitlow]

Jim, how large is the Goldstone antenna to which you referred?

Dana


On Tue, Mar 30, 2021 at 4:01 PM Lux, Jim <jim at luxfamily.com> wrote:

> On 3/30/21 6:40 AM, Wes wrote:
> > Was a pity.  China's FAST is receive only.  I believe that leaves
> > Green Bank as the biggest transmitting telescope.
>
> More likely the Goldstone Solar System Radar function of DSN on the 70m
> (DSS-14) - 500kW in X band at 8560 MHz
>
> There *is* a new transmitter for GB - but it's a demo - 700 W and
> temporarily installed up at the feed for a test.  I don't know what
> frequency.  People are pitching a 500kW system, but we shall see.
>
>
>
> >
> > I remember 417s.  I had them in a copy of a design by W2AZL.  I also
> > had a two-meter preamp I designed using 416Bs.  Of course uW cooled
> > preamps are not unusual now, but back then a blower on a receive
> > amplifier was unusual :-)
> >
> > Wes Stewart N7WS
> >
> > On 3/30/2021 4:06 AM, ew via time-nuts wrote:
> >> GOOD Morning Tom  Thank you for the super information Read it over
> >> and over. To me no joy, sadness for Astronomy, Science, Puerto Rico
> >> and the US. China is now the leader with a 500 meter unit! Did follow
> >> it since the seventies because of the low noise receivers. Remember
> >> the 417 Triodes? I had some for Ham use.
> >>                        Any body knows what happened to its Maser?
> >>          Bert Kehren
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