Right. That gives me some more info. Thanks.

The final report will be available here :
http://www.astrosurf.com/lombry/qsl-...munication.htm on sunday.

Thierry
ON4SKY

"Joe Knapp" wrote in message
gy.com...

"Thierry" To answer me in private use
http://www.astrosurf.com/lombry/post.htm wrote in message
...
Hi,

In order to complete an article, can someone provide me an URL or give
me
technical data about the telecommunication system used at JPL with Mars
Rovers Spirit and Opportunity ?
I am searching data about frequencies used at DSN, low gain antenna
radiation pattern, power, sensitivity, high gain antenna beam width,
radiation pattern, bandwith, emitting power, strength of receive signal,
sensitivity, gain, sizing

Hi Thierry,

This 13-page PDF document was written in 1997 but might answer a lot of
your
questions. It doesn't talk about the direct link that the current rovers
use
sometimes but does cover UHF to the satellite relays.

Telecommunications for Mars Rovers and Robotic Missions
http://techreports.jpl.nasa.gov/1997/97-0831.pdf