The resistance of the length of wire.
On Thu, Oct 18, 2012 at 11:03 AM, Greg Ihnen <[email protected]> wrote: > A voltage difference with no load? What's causing the drop? > > > On Thu, Oct 18, 2012 at 10:06 AM, Justin Wilson <[email protected]> wrote: >> >> We see 27.3 volts at the battery. And 27.1 volts at the top with >> no load. >> Obviously load will have an impact on this. >> >> Justin >> >> -----Original Message----- >> From: Jeromie Reeves <[email protected]> >> Reply-To: WISPA General List <[email protected]> >> Date: Thursday, October 18, 2012 9:15 AM >> To: WISPA General List <[email protected]> >> Subject: Re: [WISPA] Another Ubiquity question >> >> >That depends on wire size. That distance is not going to be ethernet >> >so I will assume #12 AWG, 400ft, copper wire, etc. You should be >> >seeing a 5.6% drop under a 1amp load or about 25v under load. >> > >> > >> >On Thu, Oct 18, 2012 at 6:02 AM, Justin Wilson <[email protected]> wrote: >> >> 27 volts at the base. DC has very little loss over 400-500 >> >> foot >> >> distances. We are seeing about .1 volt loss on a 400 foot run. >> >> >> >> -----Original Message----- >> >> From: Scott Lambert <[email protected]> >> >> Reply-To: WISPA General List <[email protected]> >> >> Date: Thursday, October 18, 2012 12:16 AM >> >> To: <[email protected]> >> >> Subject: Re: [WISPA] Another Ubiquity question >> >> >> >>>On Wed, Oct 17, 2012 at 10:14:03PM -0400, Justin Wilson wrote: >> >>>> Many UBNT deployments running at 27volts of clean DC power. Not >> >>>> saying it's ideal but it works. >> >>> >> >>>27v at the ethernet port or 27v at the base of the tower? >> >>> >> >>>-- >> >>>Scott Lambert KC5MLE Unix >> >>>SysAdmin >> >>>[email protected] >> >>>_______________________________________________ >> >>>Wireless mailing list >> >>>[email protected] >> >>>http://lists.wispa.org/mailman/listinfo/wireless >> >>> >> >> >> >> >> >> _______________________________________________ >> >> Wireless mailing list >> >> [email protected] >> >> http://lists.wispa.org/mailman/listinfo/wireless >> >_______________________________________________ >> >Wireless mailing list >> >[email protected] >> >http://lists.wispa.org/mailman/listinfo/wireless >> > >> >> >> _______________________________________________ >> Wireless mailing list >> [email protected] >> http://lists.wispa.org/mailman/listinfo/wireless > > > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless > _______________________________________________ Wireless mailing list [email protected] http://lists.wispa.org/mailman/listinfo/wireless
