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

Jim Duuuude telesistant at hotmail.com
Sat Dec 24 04:33:34 UTC 2011


I've been really busy (and productive) today.

The new version (0.60) of the RTCM/Voter board firmware now supports the following:

Notification via CW of host connection failure (with the option of repeating it 
periodically if still failed, along with option of repeating it after receiver un-key).

Notification via CW of host connection restoral after failure. 

"Offline" repeat mode, where it becomes a "dumb" repeater if host connection is lost.
Includes settable hang time. The "Notification via CW of host connection failure" feature
also can serve as a CW identifier in this mode (and was designed to do so).

The CW speed, CW strings (content of messages), and some other stuff is user-settable
from a menu.

Speaking of menus, the "big humongous" main menu is now split in to 3 nice, smaller ones.
The 2 sub-menus are IP (networking) parameters, and "Offline Mode" parameters.

The only thing it does *NOT* do is generate CTCSS tone when transmitting. I doubt it ever
will, since we are pretty much out of code space in the processor. This would require the
use of floating point trig functions to calculate generation constants (or from a table), neither
of which we have room for.

The 0.60 version will be available on SVN at 2115 PST tonight.

JIM WB6NIL



From: ke6pcv at cal-net.org
To: telesistant at hotmail.com; conny at tangandjonsson.com
CC: app_rpt-users at ohnosec.org
Subject: RE: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is nowavailable
Date: Thu, 22 Dec 2011 13:42:57 -0800










This would be a good function or to add in the 
future firmware! 
 
 



From: Jim Duuuude 
[mailto:telesistant at hotmail.com] 
Sent: Thursday, December 22, 2011 
12:51 PM
To: conny at tangandjonsson.com
Cc: Marshall Oldham; 
app_rpt mailing list
Subject: RE: [App_rpt-users] Allstar RTCM (Radio 
Thin Client Module) is nowavailable



  
  Not at the moment as the firmware currently stands. However, 
  that's not a bad idea.
It could simply act as a totally "dumb" controller 
  and just repeat the input back to
the output.

JIM


  
  
  
  Subject: Re: [App_rpt-users] Allstar RTCM (Radio Thin Client Module) is 
  nowavailable
From: conny at tangandjonsson.com
Date: Thu, 22 Dec 2011 
  13:46:17 -0700
CC: ke6pcv at cal-net.org; app_rpt-users at ohnosec.org
To: 
  telesistant at hotmail.com


  If you use RTCM 
  as "generic" radio interface on the hill and a linux box at a remote 
  location connected over an IP connection and you loose the connection can the 
  RTCM failover to be a minimal repeater controller on the hill?
  

  73 de N5HC
  /Conny
  

  
  On Dec 21, 2011, at 12:52 PM, Jim Duuuude wrote:
  
    
    Yeah, that's the general idea. The location of the Linux server 
    running app_rpt/Asterisk can be
more or less anywhere within Internet 
    connectivity of all of the receiver and/or transmitter sites.
Of course, 
    "Internet" can mean either some sort of public Internet connection, or a 
    privately-provided
Internet connection (low-cost microwave link(s), 
    etc).

The only limitation is that an RTCM/Voter module *must* be 
    located on the same LAN as the Linux
server, to at least provide a 
    GPS-based timing reference. A system could be set up with a 
    server
located in some sort of datacenter "on the ground", and all the 
    radios could have an RTCM "on the
hill" with them, and as long as there 
    is Internet connectivity of some sort between each of them
and the 
    server, the system will work nicely. That is providing that there is an RTCM 
    located at
the server location also (whether or not that particular RTCM 
    has radio hardware connected to it
or not).

One minimal Linux 
    server can easily support 1 or 2 dozen RTCM's (on 1 or 2 allstar 
    nodes),
and a larger server could easily support MANY dozens of them on 
    dozens of allstar nodes.
Of course, you REALLY dont want to put too many 
    of them on a single server, being a potential
single point of failure. 
    For pretty much any practical purpose, the reasonable limitation is
the 
    point of failure/redundancy issue, not technical limitations.

I'm not 
    sure if you were clear on this, so I thought I would mention that the RTCM 
    is not just
usable as a GPS-timing-based Multi-Receiver Voting system 
    and/or a Simulcast Transmitter system.
It can also be used as a "generic" 
    radio interface for a conventional (non-GPS-based) either simplex
or full 
    duplex (repeater) radio. The advantage of doing this would be to not have 
    the Linux
host "on the hill" with the radio (as mentioned above). In 
    addition, the RTCM allows for 
portable/mobile operation 
    with a mobile/portable Internet connection in both the GPS-based
and 
    non-GPS-based environments. 

JIM WB6NIL



    
    
    
    From: ke6pcv at cal-net.org
To: app_rpt-users at ohnosec.org
Date: 
    Wed, 21 Dec 2011 10:54:18 -0800
Subject: Re: [App_rpt-users] Allstar RTCM 
    (Radio Thin Client Module) is nowavailable


    I have been looking at the Allstar RTCM 
    (Radio Thin Client Module) and it really looks like a 
    GREAT product and addition to the already cool Allstar 
    hardware.
     
    Among all the other cool features of the 
    RTCM (Radio Thin Client Module) like Transmitter Simulcasting and 
    Receiver Voting, if I understand the 
    documentation
    correctly you can use this very 
    small Radio Thin Client Module at a remote radio site to set up 
    an Allstar repeater node if the site has internet connection 
    without a COMPUTER at the site?
     
    Then you can point the node on the hilltop 
    back to a server on the ground somewhere that is easy to get 
    too? 
     
    How many total sites can 
    you use Radio Thin Client Modules on and point back to 
    a single server on the ground?  
     
    If this is the case, All I can say is WOW, 
    how cool!
     
    73
     
    Marshall
     
     
     

    
      
      
      From: app_rpt-users-bounces at ohnosec.org [mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of Mark 
      Guibord
Sent: Sunday, December 18, 2011 
      11:03 AM
To: app_rpt-users at ohnosec.org
Subject: [App_rpt-users] Allstar RTCM 
      (Radio Thin Client Module) is nowavailable


      
      Allstar RTCM Radio Thin-Client Module, an Open-Source VOIP-Based Voting Multi-Receiver and Simulcast Transmit System is now available for purchase.  For more information visit http://micro-node.com/thin-m1.html  Regards,Mark GuibordMicro-Node International
       
       
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