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 >
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