the rtcm is not 'looking' per se, for 10 satellites, but has detected that there are x-number of satellites in view at the present time. I don't believe that the rtcm has the ephemeres in its' limited memory in the box, but mat be caching those it has seen on a FIFO basis. someone with more insight may be able to clarify. -- Bryan Sent from my iPhone 5...No electrons were harmed in the sending of this message.
On May 1, 2015, at 18:39, Jeff Carrier <k0jsc.jeff@gmail.com> wrote:
Ok i've had pretty wide variation of replies. When I see GPS drop and restore on the console it always indicates 10 satellites in view. I'm assuming the RTCM is looking for 10.
On Fri, May 1, 2015 at 3:06 PM, Mike Tubby <mike@tubby.org> wrote:
For a 2D fix you need a minimum of 3 satellites For a 3D fix you need a minimum of 4 satellites
Beyond this "more is better".
HTH
Mike G8TIC
On 01/05/2015 20:41, Jeff Carrier wrote: Does anyone know how many satellites are required for a good GPS lock. I keep losing lock which is causing me to lose the system.
K0JSC
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