My guess would be inconsistent cheapo volt meter or power supply/battery voltage was fluctuating.
On Thu, Oct 18, 2012 at 10:24 PM, Greg Ihnen <[email protected]> wrote: > That's what I thought... but... he said: "We see 27.3 volts at the battery. > And 27.1 volts at the top with no load" > > > On Thu, Oct 18, 2012 at 3:57 PM, Chris Fabien <[email protected]> wrote: >> >> No current = no voltage drop. Ohms Law. >> >> On Thu, Oct 18, 2012 at 3:38 PM, Jeromie Reeves <[email protected]> >> wrote: >> > 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 >> _______________________________________________ >> 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
