GAO: The DSN is actually falling apart |
GAO: The DSN is actually falling apart |
Guest_BruceMoomaw_* |
May 24 2006, 11:55 PM
Post
#1
|
Guests |
|
|
|
May 26 2006, 06:46 PM
Post
#2
|
|
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
There was a lengthy presentation by Bob Preston from the DSN at OPAG on what the DSN wants and needs to do to improve over the coming decades, and it basically involves replacing all the gigantic, one-of-a-kind antennas with arrays of 6-, 12-, or 18-meter dishes (they are still experimenting to figure out which one will be the optimal size). Unlike the big dishes, each of which needs its own operator, whole arrays can be operated by a single person; also they can plan to have some percentage of all the dishes down at any given time for routine maintenance. Also they can just devote as many dishes as they need to a single spacecraft, splitting the array to support several spacecraft at once or using the whole array for high bandwidth. They've got to be replaced because the big dishes cannot be upgraded to support Ka-band communications.
--Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
|
|
May 26 2006, 07:29 PM
Post
#3
|
|
Senior Member Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 |
There was a lengthy presentation by Bob Preston from the DSN at OPAG --Emily Very informative is the Planetary Society's blog about DSN. This has satisfied me almost all my inquiries. Rodolfo A suggest RNeuhaus, there exist new antenna technologies which could do the same job than a large dish at a lesser cost. But it is physically impossible to reduce the size of the antennas, as this size is necessary to: -gather signal power -obtain a directionnal effect. (Both characteristics go together). ... Thanks much for the detailed antenna technologies. I think that the array of antenna along with optical antennas are the best candidates to attend the future increased bandwidth and transmission traffic. Rodolfo |
|
|
Lo-Fi Version | Time is now: 27th September 2024 - 04:50 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |