<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
I'm curious about the stick inputs. I believe the manufacturers are all
still using pots, so they must have an A/D converter for each stick
input in order to input the data into the processor. Most of the
converters are less than 11 bits and even then the least significant
bits are noisy. If you can get 8 solid bits of data you are doing well.
<br>
Unless the manufacturers are doing something very special, it appears
to me that the stick inputs will be the limiting factor for resolution.<br>
<br>
John<br>
<br>
James Oddino wrote:
<blockquote cite="mid:2A3A1A3E-7EDD-4DF2-B25D-2CF5A561DFE4@socal.rr.com"
type="cite">What is the frame rate and the servo update rate?
<div><br>
</div>
<div>Jim O</div>
<div><br>
</div>
<div><br>
<div>
<div>On Aug 25, 2009, at 2:12 PM, Bob Richards wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td
style="font-family: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; font-size: inherit; line-height: inherit; font-size-adjust: inherit; font-stretch: inherit;"
valign="top">
<div>RE: Stick centering. The Hitec servo programmers can
read the pulse width down to 1us I believe. Plug it into a receiver
output and put it in the right mode and it will display the pulse width.</div>
<div> </div>
<div>RE: Latency comparisons, pullled this from the web:</div>
<div> </div>
<blockquote dir="ltr" style="margin-right: 0px;">
<p dir="ltr" style="margin-right: 0px;">These latency
findings were taken using carefully contructed and consistent methods
to ensure they are as accurate as possible. As of May 2009 <br>
<br>
Airtronics SD-10G: <br>
Min: 7.36ms <br>
Max: 16.3ms <br>
Ave: 11.83ms<br>
<br>
Futaba 10C (Futaba is a Trademark of Futaba Corporation and Dist by
Great Planes): <br>
Min: 9ms <br>
Max: 29ms <br>
Ave: 19ms<br>
<br>
JR 9303 & R1221rx (JR is a Trademark of JR Radios Japan and Dist by
Horizon Hobby) <br>
Min: 25ms <br>
Max: 47ms <br>
Ave: 36ms <br>
<br>
JR 12X <br>
Min: 21.5ms <br>
Max: 43.5ms <br>
Ave: 32.5ms <br>
</p>
</blockquote>
<p dir="ltr" style="margin-right: 0px;">Of course, this was
in an ad for Airtronics. ;-) </p>
<div style="margin-right: 0px;"> <br
class="webkit-block-placeholder">
</div>
<p dir="ltr" style="margin-right: 0px;">Bob R. </p>
<div style="margin-right: 0px;"> <br
class="webkit-block-placeholder">
</div>
<p dir="ltr" style="margin-right: 0px;"><br>
</p>
</td>
</tr>
</tbody>
</table>
_______________________________________________<br>
NSRCA-discussion mailing list<br>
<a moz-do-not-send="true"
href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
<a class="moz-txt-link-freetext" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></blockquote>
</div>
<br>
</div>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
NSRCA-discussion mailing list
<a class="moz-txt-link-abbreviated" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a>
<a class="moz-txt-link-freetext" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></pre>
</blockquote>
</body>
</html>