He also did a six part documentary on PBS in 2014.
Great thinking.
On 09/04/2017 10:32 PM, Nick Sayer via time-nuts wrote:
I happened to be at Powell's bookstore in Portland the day after the eclipse
and came across this book and wound up buying it. It's attraction to me was the
same that
I happened to be at Powell's bookstore in Portland the day after the eclipse
and came across this book and wound up buying it. It's attraction to me was the
same that I felt growing up watching the documentaries hosted by James Burke -
Connections and The Day The Universe Changed.
Both Burke
I'm dating myself again but when I was employed at Hughes Aircraft we had an HP
salesman dedicated to servicing just us. So most everything came direct from
them or Wiltron. I liked traveling to HP events with him. Hughes had a miserly
expense reporting process. His was, "I count the money
Hi
A lot depends on just which outfit you buy your attenuators from. There
certainly *are* outfits out there that supply you just over 20 db RL when
the spec is 20. They also don’t charge very much for their attenuators ….
Bob
> On Sep 4, 2017, at 4:53 PM, jimlux wrote:
On 9/4/17 1:18 PM, Wes wrote:
If these are COTS attenuators, their own return loss is unlikely to be
40 dB. In fact grabbing an old HP catalog off my bookshelf (I'm dating
myself) I see a typical type N attenuator specified as 1.2 VSWR (~21 dB
RL). I went on a quick "shopping" trip looking
Not being as nutty as many on this list I only skimmed the papers you provided.
Interesting and I will stand corrected regarding the use of 75 ohm cable in 50
ohm systems in critical situations. In situations like my own, I'm not going to
fuss about it.
I realize this is NIST, the 1384
Although not time nuts related I believe this document speaks to some of the
practical issues...
http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-6297.pdf
Mark Spencer
m...@alignedsolutions.com
> On Sep 3, 2017, at 4:56 PM, Mark Sims wrote:
>
> Real time nuts run
Real time nuts run phase stable cable (some well over $50 / foot) in climate
controlled ducts... which is all for nought unless you also climate control the
antenna.Which is all standard practice for precision geodesy. Try to keep
it all with a milli-Kelvin or two. Oh, and don't forget
Hi
If you are running into a TBolt, it’s got an F connector and 75 ohm cable
spec’d already …. The 50 ohm / 75 ohm thing didn’t seem to bother
Trimble. They certainly looked at it before going that way ….
Bob
> On Sep 4, 2017, at 12:31 AM, Ian Stirling wrote:
>
> On