On Tue, Jul 22, 2008 at 4:14 PM, David Ackrill <[EMAIL PROTECTED]> wrote: > Sorry to be a bore, but like any kid with a new toy I'm facinated by the > changing values on the display... > > What do the values under SV and AMU mean?
SV = space vehicle. mostly irrelevant, unless you care about the serial number of the bit of metal up there. Usually people mean to say PRN, or Pseudo-Random Noise code number - one of the 32 codes transmitted by the satellite. AMU is Amplitude Measurement Unit. Trimble's signal strength measurement. > Maybe I should recognise them from other GPS satellite days, but they > don't seem to be values that I remember. > > I'm sure it all means that they are to the north, south, east or west of > here and to do with signal strength to my location or how good, or bad, > the lock to the satellites is.. But, nothing that I can remember, to be > honest... You're thinking of azimuth and elevation. > The 10MHz output seems, as far as my old Multifunction Counter is > concerned, to be to 10.00000MHz within +/-0.00001 MHz. > > The display showing 10.00003 to 10.00004 MHz all evening. > > So, my guess is that my poor old counter is +/- 10Hz out, but that may > be due to the age and non-calibration of my frequency counter over the > years. > > Or... The Thunderbolt 10MHz output is moving up and down by 0.00001 MHz > within a 10MHz band. > > This is where I start to get to grips with the spectrum analyser that a > friend of mine lent to me. I hope... > > Dave (G0DJA) > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- GDB has a 'break' feature; why doesn't it have 'fix' too? _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.