[App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable

[Jim Duuuude]

It will definitely handle 500ms without any problems (I think the actual limit is around 700ms or so).
That is limited by the amount of RAM buffer available in the RTCM/Voter module. The "host" side,
of course, could probably buffer hours if you put enough RAM in it :-).

In addition, it supports use of an ADPCM codec (which uses 1/2 the bandwidth of the normal one)
and has a 40ms packet rate, rather then the usual 20ms rate both of which are well-suited for
a marginal "mobile" connection environment.

JIM WB6NIL

From: bote_radio at botecomm.com
To: app_rpt-users at ohnosec.org
Date: Thu, 22 Dec 2011 06:44:45 -0500
Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable



What is the maximum latency that can be tolerated? 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. 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. BoteW4NUD   From: Jim Duuuude
Sent: Wednesday, 21 December, 2011 23:10
Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable yep, if you get pingage you get connectage.

JIMDate: Thu, 22 Dec 2011 04:09:56 +0200
From: shaun at pmbnet.co.za
Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable

Now THIS is what I wanted to hear. So I guess as long as I can ping the AllStar server, then it will work.


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.
Anyone want to buy 4x URIx's?



Shaun
zr5s




On 21/12/11 22:52, Jim Duuuude wrote: Yeah you got it. 

Another thing I probably should have mentioned is that the RTCM/Voter module uses an
Internet protocol that is specifically designed to work on ANY Internet connection from which
"generic web surfing" is possible (behind any number of NAT routers/firewalls, etc and
where LAN address is provided via DHCP). No "port forwarding" or "network provisioning"
nightmares are necessary. You can just plug it in and it works.

JIM WB6NIL
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