On 11/28/20 2:51 PM, Bill Notfaded wrote:
Good evening Don-
I believe FEI made the USO's for Voyager1, 2, and others:
http://adsabs.harvard.edu/full/2004ESASP.544..131A
More recently, APL has also been supplying USOs.
Quartz, in a vacuum bottle for thermal isolation. Lots of blanks started
Twitter has tracking posts for both the DSN and the Voyagers themselves.
there is a phase for every operation with the voyagers as Jim describes,
followed by data transfer (for instance lately 159b/s)
DSS 14 carrier lock on Voyager 1
Frequency: 8.4199GHz
Signal strength: -156dBm
OUT OF LOCK
Hi
The Voyger probes are very complex setups. There are a *lot* of frequency
references
in them. The “on the ground” rover happens to have used a Vectron TCXO ….
Bob
> On Nov 28, 2020, at 5:06 PM, donald collie wrote:
>
> Can any group member describe the onboard frequency reference[s] used
On 11/28/20 2:28 PM, Steve Allen wrote:
On Sun 2020-11-29T11:06:18+1300 donald collie hath writ:
Can any group member describe the onboard frequency reference[s] used in
the Voyager space probes? They have done extremely well over the decades -
are they Cesium?, Rubidium?, Quartz?
The ultra
Here's a stunning collection of hp photographs, including many of our
favorite frequency standards and counters.
"Links to Jeff Peletz's Wallpaper Equipment Photographs"
http://hparchive.com/wallpaper
Thanks to Carl Ott N2RVQ, over at the Nixie tube mailing list, for the link.
/tvb
On Sun 2020-11-29T11:06:18+1300 donald collie hath writ:
> Can any group member describe the onboard frequency reference[s] used in
> the Voyager space probes? They have done extremely well over the decades -
> are they Cesium?, Rubidium?, Quartz?
The ultra stable oscillators USOs are crystals
Can any group member describe the onboard frequency reference[s] used in
the Voyager space probes? They have done extremely well over the decades -
are they Cesium?, Rubidium?, Quartz?
Cheers!...Don
The first Motorola Oncore Remote antenna I bought has failed after some
20 years of continuous service in Danish climate:
http://phk.freebsd.dk/hacks/20201128_EOL_Motorola_Oncore_Remote
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC
