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Without GPS, how does XIPAR deal with jitter and network latency?<br>
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<div class="moz-cite-prefix">On 3/30/2016 11:25 AM, Jeff Ackerman
wrote:<br>
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<blockquote
cite="mid:CAKmcLtKcH_jzYPHGTp3AO115W8XEdgwrMrfdqd=zB0NOQ-aAqA@mail.gmail.com"
type="cite">
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<div>If you looking for the alternative IP voting of the
varuious app_rpt flavors you can try XIPAR: <a
moz-do-not-send="true"
href="http://www.xelatec.com/xipar/simplevoter"><a class="moz-txt-link-freetext" href="http://www.xelatec.com/xipar/simplevoter">http://www.xelatec.com/xipar/simplevoter</a></a><br>
<br>
</div>
It wont be as seamless of voting as a RTCM, but its much
simpler, doesnt require anything more then PC's, the IP
backhaul and usb radio interfaces with radios capable of
giving discriminator audio.<br>
<br>
</div>
Conventional hardware voting comparators could work but require
the backhaul, which in most commercial applications is 4 wire
e&m voice circuits using either tone signaling or e&m
signaling. (This method of voting is done outside of
allstar/app_rpt.)<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Mar 30, 2016 at 8:09 AM, Joe
Leikhim <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:rhyolite@leikhim.com" target="_blank">rhyolite@leikhim.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Here are
some products to start with;<br>
<br>
There is the Raven M4x<br>
<br>
<a moz-do-not-send="true"
href="http://www.ravencomm.com/documents/products_doc3_23.pdf"
rel="noreferrer" target="_blank">http://www.ravencomm.com/documents/products_doc3_23.pdf</a><br>
<br>
Raytheon JPS SNV-12 (Though the future of this product is up
in the air, it was the defacto standard. Uses 600 ohm VF
circuits, IP connectivity needs to be overlaid)<br>
<a moz-do-not-send="true"
href="http://www.simulcastsolutions.com/userfiles/file/appnotes/vSnv12App.pdf"
rel="noreferrer" target="_blank">http://www.simulcastsolutions.com/userfiles/file/appnotes/vSnv12App.pdf</a><br>
<br>
Motorola Spectra Tac (Obsolete Now Motorola has pretty much
abandoned analog FM technology. Uses 600 ohm VF circuits,)<br>
<a moz-do-not-send="true"
href="http://www.repeater-builder.com/motorola/spectra-tac/spectratac-index.html"
rel="noreferrer" target="_blank">http://www.repeater-builder.com/motorola/spectra-tac/spectratac-index.html</a><br>
<br>
The above voters all use some method of signal/noise voting.
The JPS SNV-12 and the Raven M4X use DSP to make decision,
while the Spectra Tac was pretty much an analog noise
measurement vs a status tone/audio AGC level. The SpectraTac
does not support non-Motorola receivers unless you know the
"secret sauce" which I am privy to.<br>
<br>
This site has some practical examples of projects that are
simulcast, but by design incorporate the SNV-12 voters.<br>
<br>
<a moz-do-not-send="true"
href="http://www.simulcastsolutions.com" rel="noreferrer"
target="_blank">www.simulcastsolutions.com</a><br>
<br>
Are you looking for some more in depth RF design aspects of
receiver voting? I can help perhaps.<br>
<br>
Joe<br>
<br>
<a moz-do-not-send="true" href="http://www.leikhim.com"
rel="noreferrer" target="_blank">www.leikhim.com</a>
<div>
<div class="h5"><br>
<br>
On 3/8/2016 5:20 AM, Steve Wright wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
On 05/03/16 06:00, <a moz-do-not-send="true"
href="mailto:mike@midnighteng.com" target="_blank">mike@midnighteng.com</a>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
FYI There are RTCM /voter systems for app_rpt if you
want to do it right.<br>
<br>
</blockquote>
<br>
Is there an example voting-RX project somewhere I can
read about?<br>
<br>
Non-RTCM please. I know about the RTCM and I'm
looking at alternatives.<br>
<br>
<br>
Many thanks,<br>
Steve<br>
<br>
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-- <br>
Joe Leikhim<br>
<br>
<br>
Leikhim and Associates<br>
<br>
Communications Consultants<br>
<br>
Oviedo, Florida<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:JLeikhim@Leikhim.com">JLeikhim@Leikhim.com</a><br>
<br>
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value="+14079820446" target="_blank">407-982-0446</a><br>
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rel="noreferrer" target="_blank">WWW.LEIKHIM.COM</a>
<div class="HOEnZb">
<div class="h5"><br>
<br>
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<br>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature">Jeff Ackerman<br>
<a moz-do-not-send="true" href="mailto:kg6uyz@gmail.com"
target="_blank">kg6uyz@gmail.com</a><br>
</div>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
<a class="moz-txt-link-abbreviated" href="mailto:JLeikhim@Leikhim.com">JLeikhim@Leikhim.com</a>
407-982-0446
<a class="moz-txt-link-abbreviated" href="http://WWW.LEIKHIM.COM">WWW.LEIKHIM.COM</a></pre>
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