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It will definitely handle 500ms without any problems (I think the actual limit is around 700ms or so).<br>That is limited by the amount of RAM buffer available in the RTCM/Voter module. The "host" side,<br>of course, could probably buffer hours if you put enough RAM in it :-).<br><br>In addition, it supports use of an ADPCM codec (which uses 1/2 the bandwidth of the normal one)<br>and has a 40ms packet rate, rather then the usual 20ms rate both of which are well-suited for<br>a marginal "mobile" connection environment.<br><br>JIM WB6NIL<br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">From: bote_radio@botecomm.com<br>To: app_rpt-users@ohnosec.org<br>Date: Thu, 22 Dec 2011 06:44:45 -0500<br>Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable<br><br>
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</style><div class="ecxWordSection1"><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;">What is the maximum latency that can be tolerated?</span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;">I just returned from a road trip during which I streamed my mobile scanner monitoring railroad communications (yes, some people actually listen to that stuff). I kept a ping process running on my little netbook computer running the streaming application to see when my phone fell out of range. I noted typical ping times in the several hundred millisecond range on AT&T's mobile data network, which might be of interest to those intending to run mobile nodes like this.</span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;">Keep in mind that ping is the red-headed step-child of protocols and its payload can be dropped at will by routers in favor of more important payloads, so real traffic can still squeeze its way through when your ping packets get dropped on the floor.</span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;">Bote</span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;">W4NUD</span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: black;"> </span></p><div style="border-width: medium medium medium 1.5pt; border-style: none none none solid; border-color: -moz-use-text-color -moz-use-text-color -moz-use-text-color blue; padding: 0in 0in 0in 4pt;"><div><div style="border-right: medium none; border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;"><p class="ecxMsoNormal"><b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";"> Jim Duuuude<br><b>Sent:</b> Wednesday, 21 December, 2011 23:10<br><b>Subject:</b> Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable</span></p></div></div><p class="ecxMsoNormal"> </p><div><p class="ecxMsoNormal" style="margin-bottom: 12pt;"><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">yep, if you get pingage you get connectage.<br><br>JIM</span></p><div><div class="ecxMsoNormal" style="text-align: center;" align="center"><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";"><hr id="ecxstopSpelling" width="100%" align="center" size="2"></span></div><p class="ecxMsoNormal"><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">Date: Thu, 22 Dec 2011 04:09:56 +0200<br>From: shaun@pmbnet.co.za<br>Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable<br><br>Now THIS is what I wanted to hear. So I guess as long as I can ping the AllStar server, then it will work.<br><br><br>We have a large wireless LAN network but each geographical section is on its own ip range. I have 10 repeater sites I want to link up. Looks like my D-Star project must be put on hold for awhile.<br>Anyone want to buy 4x URIx's?<br><br><br><br>Shaun<br>zr5s<br><br><br><br><br>On 21/12/11 22:52, Jim Duuuude wrote: </span></p><div><p class="ecxMsoNormal" style="margin-bottom: 12pt;"><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">Yeah you got it. <br><br>Another thing I probably should have mentioned is that the RTCM/Voter module uses an<br>Internet protocol that is specifically designed to work on ANY Internet connection from which<br>"generic web surfing" is possible (behind any number of NAT routers/firewalls, etc and<br>where LAN address is provided via DHCP). No "port forwarding" or "network provisioning"<br>nightmares are necessary. You can just plug it in and it works.<br><br>JIM WB6NIL</span></p></div></div></div></div></div><br>_______________________________________________
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