Dave, My original antenna was a mobile GPS unit stuck out the window on a thin aluminum pole just to get it away from the house. It worked fine until I got my "real" antenna installed. I believe the default is overdetermined clock mode. AMU is Amplitude Measurement Unit. I think the default is 3 or 4 before it locks on the bird. You can change that but I would use the defaults until you see how everything works. You may want to change the clock from GPS to UTC.
Ken, WA2LBI On Tue, May 20, 2008 at 4:52 PM, David C. Partridge < [EMAIL PROTECTED]> wrote: > It's found a whole lot more satellites now - tracking seven! > > Once self survey is complete, should I set to overdetermined clock mode and > dynamics code stationary? > > Thanks > Dave > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of David C. Partridge > Sent: 20 May 2008 21:21 > To: 'Discussion of precise time and frequency measurement' > Subject: [time-nuts] Thunderbolt initial startup > > I've managed to cobble a serial cable for my TB as I found I had a spare > DB9M connector and another cable with a DB9F on the other end. > > I'm now looking at tboltmon - it's saying only 1 SV usable and 1% into > self-survey, I only attached the antenna about 5-10 minutes ago. > > The antenna (car type) is mounted on a small disc of aluminium, and is > about > 40ft off the ground and has a reasonable view of the sky though there are > some trees to the south of me. Antenna cable is 5mtrs of RG174.?? > > It shows a number of satellites with an AMU value (whatever that is) of 0. > The one it's tracking has an AMU of >15. > > Is this normal as the self-survey starts? Or do I need a (much) more > serious antenna (this one claims 28db gain)? > > Regards, > David Partridge > Tel: +44 (0)1926 856755 > Mobile: +44 (0)7963 206199 > Email:[EMAIL PROTECTED]<[EMAIL PROTECTED]> > skype:david.partridge > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
