[time-nuts] Jupiter-T GPS Rx Performance
Brian O'Connor
vk4gtw at bigpond.com
Sat Jul 22 04:06:32 UTC 2006
What is the accuracy variation of the 10 kHz and
1 PPS outputs of the Jupiter-T GPS receiver between
3-D Navigation, 2-D Navigation and 0-D Position Hold
modes, after a couple of hours of reception? Is it
less than an order of magnitude? By default I
understand the Jupiter to automatically select
Position Hold mode after 86,400 observations.
I normally track 6 to 8 satellites at about 20 dB Eb/No.
How much accuracy variation exists between the various
modes with other brands of GPS receivers?
In position hold mode is it best to average the 4 strongest
satellites or use all available? How much accuracy
improvement results?
TIA
Brian VK4GTW
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