Ah. Well, I guess that's the catch, then. :( Unless they actively encrypt the data, I'd guess that a few minutes with a variable power supply and a copy of Wireshark would open the proverbial kimono.
Failing that, how about a bank of V-to-F converter chips with paralleled outputs, driving a line-in jack which is then FFT'ed to recover the 'channel' amplitudes? Cost would be a buck or two per input at most, plus a few hours' soldering and hacking time. (Or an Atmel chip with an RS-232 hookup, as F. Larsen's post suggested just before I hit 'send' on this one. That'd be the easy way out, I think.) -- john, KE5FX > I've actually got some of their ethernet devices. The problem is that > the drivers are all closed. They give no info on how to talk to them > without LabView. > > Matt > > > On Thu, Jul 30, 2009 at 9:34 PM, John Miles<jmi...@pop.net> wrote: > > National Instruments has been getting aggressive with their > pricing lately: > > e.g., http://zone.ni.com/devzone/cda/tut/p/id/8675 . I was > actually toying > > with the idea of getting into the DAQ business a few months ago, but I > > changed my mind in a hurry when I saw their ads. > > > > -- john, KE5FX > > > >> -----Original Message----- > >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on > >> Behalf Of Matt Ettus > >> Sent: Thursday, July 30, 2009 9:19 PM > >> To: Discussion of precise time and frequency measurement > >> Subject: Re: [time-nuts] Multiple Voltage monitoring > >> > >> > >> DC, 0 to 6V, 10mV or better resolution. > >> > >> Thanks, > >> Matt > >> > >> On Thu, Jul 30, 2009 at 9:08 PM, WB6BNQ<wb6...@cox.net> wrote: > >> > Hi Matt, > >> > > >> > 1. Is the voltage AC or DC ? > >> > 2. What is the voltage range ? > >> > 3. What kind of resolution ? > >> > > >> > Bill....WB6BNQ > >> > > >> > Matt Ettus wrote: > >> > > >> >> Does anyone have a good solution for monitoring 4-8 > different voltages > >> >> at the same time? I only need a sample rate around 1-2 Hz, > but would > >> >> need GPIB, serial, or ethernet support with protocol documentation. > >> >> > >> >> Any help identifying a solution other than 8 voltmeters > would be much > >> >> appreciated. > >> >> > >> >> Thanks, > >> >> Matt > >> > > >> > > >> > _______________________________________________ > >> > time-nuts mailing list -- time-nuts@febo.com > >> > To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> > and follow the instructions there. > >> > > >> > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@febo.com > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.