I think you need to put the antenna outside.
In my situation, I put the antenna on the balcony.
It usually takes me only several minutes to get an accurate time
(diff<0.000001).
Wu
*From:*discuss-gnuradio-bounces+wu.ting=comf5.comm.eng.osaka-u.ac...@gnu.org
[mailto:discuss-gnuradio-bounces+wu.ting=comf5.comm.eng.osaka-u.ac...@gnu.org]
*On Behalf Of *Alex Zhang
*Sent:* Monday, September 24, 2012 2:51 PM
*To:* gnuradio mailing list; usrp-users
*Cc:* Tom Rondeau; j...@ettus.com
*Subject:* [Discuss-gnuradio] Waiting too much time for the GPS to be
synchronized
Hi,
I have two USRPs with GPS equipped. I found it always took too much
for the two GPS to be sychronized to the same time (diff < 0.00001s).
Previously, I wait about 1 or 2 hours, but today 10 hours later, they
still have time difference of 5s.
I am using GPS indoor environment.
--
Alex,
/Dreams can come true -- just believe./
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If you're in a situation (indoors) where you can't get GPS on your
SmartPhone, you're not going to get it on the GPSDO. The GPS L1 signal
isn't very strong, and doesn't propagate very well through concrete
walls and low-E windows. You really want an outdoor antenna.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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