Do you have any way, on the same physical LAN as the RTCM, to put a third device to monitor packets and use tcpdump/wireshark (depending on your religion.. or ahh choice of OS's) to see if there is something weird going on? This can easily be accomplished with the use of an old-fashioned 10base-T hub (not a switch, a HUB). Jim From: adamson_alan@hotmail.com To: App_rpt-users@ohnosec.org Date: Mon, 11 Jun 2012 15:06:19 -0400 Subject: [App_rpt-users] RTCM question(s) RTCM question(s) I occasionally get a connection lost/connect established almost back to back on my RTCM at a remote site. This is on a hardwired IP connection (finally) with pretty low latency and no significant packet loss in the audio on either side. e.g. here is my response rate from a remote ping to my RTCM Pinging <host ipaddress> [64.16….] with 32 bytes of data: Reply from 64.16….: bytes=32 time=60ms TTL=52 Reply from 64.16….: bytes=32 time=58ms TTL=52 Reply from 64.16….: bytes=32 time=103ms TTL=52 Reply from 64.16….: bytes=32 time=99ms TTL=52 Reply from 64.16….: bytes=32 time=81ms TTL=52 Reply from 64.16….: bytes=32 time=74ms TTL=52 Reply from 64.16….: bytes=32 time=96ms TTL=52 Reply from 64.16….: bytes=32 time=64ms TTL=52 Reply from 64.16….: bytes=32 time=57ms TTL=52 Reply from 64.16….: bytes=32 time=65ms TTL=52 Reply from 64.16….: bytes=32 time=63ms TTL=52 Reply from 64.16….: bytes=32 time=150ms TTL=52 . . . Ping statistics for 64.16….: Packets: Sent = 37, Received = 37, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 57ms, Maximum = 150ms, Average = 87ms 2 questions. Is there some way to set a time display on the messages on an RTCM when it isn't connected to a GPS, I can't tell how long the duration is between the back to back messages because all I get is as follows. <System Time Not Set> ERROR! Host response timeout <System Time Not Set> Host Connection Lost (Pri) (24.99.5x.xxx) <System Time Not Set> Using Primary Voter Host (24.99.5x.xxx) <System Time Not Set> Host Connection established (Pri) (24.99.5x.xxx) This is a single RTCM running in simple radio interface mode. Can you run an RTCM in simple mode and still connect it to a GPS? Will that set it's time locally? Is there any way to set a parameter to lengthen the timeout timer in either the voter.conf file or the RTCM configuration? I'm sure we are only talking about a few milliseconds difference is all that's needed. Thanks in advance, Alan _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users