<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">The Civil Engineering version of this is SWER electrical distribution. Single-Wire, Earth-Return. And it’s as crazy in implementation as it sounds now.<div class=""><br class=""></div><div class=""><br class=""><div class=""><br class=""></div><div class=""><img class="irc_mi" data-atf="0" width="320" height="239" apple-inline="yes" id="87983679-3FC9-4100-999C-599ECD722F09" apple-width="yes" apple-height="yes" src="cid:8B6716A3-BC5A-48D6-AC7A-C2CFA1E3D178"><br class=""><div class="">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="">-Ben Cannon</div><div class="">CEO 6x7 Networks & 6x7 Telecom, LLC </div><div class=""><a href="mailto:ben@6by7.net" class="">ben@6by7.net</a></div><div class=""><br class=""></div></div></div><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class="Apple-interchange-newline"><span><img height="118" width="320" apple-inline="yes" id="300A26BA-2963-4A9B-A79F-616B9C096B38" apple-width="yes" apple-height="yes" src="cid:245ADEA1-477E-4B5A-989E-9177BDB798AE" class=""></span>
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<br class=""><div><blockquote type="cite" class=""><div class="">On Jan 25, 2020, at 8:24 AM, Allen McKinley Kitchen (gmail) <<a href="mailto:allenmckinleykitchen@gmail.com" class="">allenmckinleykitchen@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On Jan 25, 2020, at 08:52, Paul Nash <<a href="mailto:paul@nashnetworks.ca" class="">paul@nashnetworks.ca</a>> wrote:<br class=""><blockquote type="cite" class=""><br class=""><br class=""><blockquote type="cite" class=""><br class="">So, I grew up in South Africa, and one of the more fascinating /<br class="">cooler things I saw was a modem which would get you ~50bps (bps, not<br class="">Kbps) over a single strand of barbed wire -- you'd hammer a largish<br class="">nail into the ground, and clip one alligator[0] clip onto that, and<br class="">another alligator clip onto the barbed wire. Repeat the process on the<br class="">other side (up to ~5km away), plug the modems in, and bits would<br class="">flow... I only saw these used a few times, but always thought they<br class="">were cool….<br class=""></blockquote><br class="">Do you remember anything about the actual type of modem? Or where you deployed them?<br class=""><br class=""></blockquote>Decades ago, I cobbled together a 20mA current loop interface that may have been an early version of this .. ran a set of Baudot machines (pre-ASCII, upper case & figs only) mostly just to have fun with a set of old ASR 32 teletypes. I used a couple of 500’ spools of zip cord lying on the ground from end to end. Never mind backhoes - it was lawn-mower vulnerable. (However, being flat on the ground seemingly made it less vulnerable to lightning strikes.)<br class=""><br class="">Of course, this was hardly critical infrastructure!<br class=""><br class="">Blessings..<br class=""><br class="">Allen</div></div></blockquote></div><br class=""></div></div></body></html>