<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>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.</div><div><br></div><div>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.<br><br>--<div>Bryan</div><div>Sent from my iPhone 5.<span style="font-size: 13pt;">..No electrons were harmed in the sending of this message.</span></div><div><br><div><br></div></div></div><div><br>On May 1, 2015, at 18:39, Jeff Carrier <<a href="mailto:k0jsc.jeff@gmail.com">k0jsc.jeff@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">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.</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 1, 2015 at 3:06 PM, Mike Tubby <span dir="ltr"><<a href="mailto:mike@tubby.org" target="_blank">mike@tubby.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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For a 2D fix you need a minimum of 3 satellites<br>
For a 3D fix you need a minimum of 4 satellites<br>
<br>
Beyond this "more is better".<br>
<br>
HTH<br>
<br>
Mike G8TIC<br>
<br>
<br>
<div>On 01/05/2015 20:41, Jeff Carrier
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">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.
<div><br>
</div>
<div><br>
</div>
<div>K0JSC</div>
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