<div dir="ltr">Hi Chuck, <div><br></div><div>The network is solid from what I can tell. See the smokeping graph attached. This is the uW shot between the 2 sites. </div><div><br></div><div><img src="http://10.0.0.37/smokeping/images//Cedarwood_Router_10_0_11_1_last_10800.png"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 1, 2015 at 5:18 PM, Chuck Henderson <span dir="ltr"><<a href="mailto:rpt2@chuck.midlandsnetworking.com" target="_blank">rpt2@chuck.midlandsnetworking.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I don't think that you said, but I will assume that you are using the Garmin GPS and that you have it located where it has a clear view of the sky and that you have it cabled correctly and with the correct settings, up to date firmware in the RTCM, etc... Most likely IMHO, you have a network problem on your Ethernet or your network between your RTCM and your computer. I have found that if there are lots of errors, collisions, re-transmissions and the such on the network, the RTCM just looses track of the GPS. Fix the network problem and the GPS will mysteriously start working great.<div>Chuck Henderson, CCIE2285, WB9UUS</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 1, 2015 at 5:39 PM, Jeff Carrier <span dir="ltr"><<a href="mailto:k0jsc.jeff@gmail.com" target="_blank">k0jsc.jeff@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><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><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">
<div bgcolor="#FFFFFF" text="#000000">
<br>
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>
</div>
<br>
<fieldset></fieldset>
<br>
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