<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">What do they say in the Capital 1 commercials, not literally? Transmitters communicate with receivers digitally in PCM mode and analog in PPM mode. Receivers communicate with servos analogy (?) with PWM. The servos are analog.<div><br></div><div>Jim O</div><div><br></div><div><br><div><div>On Jun 20, 2009, at 7:23 PM, Bob Richards wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><table cellspacing="0" cellpadding="0" border="0" style="position: static; z-index: auto; "><tbody><tr><td valign="top" style="font: inherit; ">--- On<span class="Apple-converted-space"> </span><b>Sat, 6/20/09, Richard Lewis<span class="Apple-converted-space"> </span><i><<a href="mailto:humptybump@sbcglobal.net">humptybump@sbcglobal.net</a>></i></b><span class="Apple-converted-space"> </span>wrote:<br><blockquote style="padding-left: 5px; margin-left: 5px; border-left-color: rgb(16, 16, 255); border-left-width: 2px; border-left-style: solid; position: static; z-index: auto; "><br><br><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><div>And....Interestingly enough.....It does not matter what kind of fancy whopping digital super latest and greatest TX/RX system you have, the signals to the servos are still firmly rooted in good old 1970's technology....:) And...Your super whopper digital brushless whatever servo still has an analog pot for position feedback....:)</div><div> </div><div>I for one am eager to see a leap in servo technology.....Bidirectional serial comms to the servos with the servo being able to feed back torque, amps, position, rate, etc.....and encoder/resolver position feedback in the servos to really catch up with the world we live in......</div><div> </div></div></blockquote><div>Amen to that. We have digital servos and digital receivers, yet they talk to each other via an analog method and use analog feedback.</div><div> </div></td></tr></tbody></table>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></div></span></blockquote></div><br></div></body></html>