cool! just what i am thinking about. I assume you used the pick and pluck foam? what size battery did you use and is it attached directly to the USRP, or did you need a regulator?
On Mon, Sep 24, 2012 at 1:22 PM, Ian Buckley <i...@ionconcepts.com> wrote: > Dave, I've built a few systems like this using Pelican case's or cheaper > knock off's. > Rather than go for a "side-by-side layout" which is hard to accommodate in > common Peli case sizes, I buried the gel cells and USRP deep in the foam > under the laptop. By making the USRP fit snuggly in the foam I was able to > build an effective plenum using the USRP's built in fan so that not only did > the USRP get sufficient air, but the gel cells and laptop underside received > forced airflow, with exhaust and intake air returned to the surface of the > open case via some carbon fiber pipe off cut's I had handy. Standard auto > shop stuff was best to build the high current wiring and source switches for > ON/OFF/CHARGE selection, and I recall sourcing a decent weather proof > connector for the charging from Western Marine which got silicone sealed into > the one hole I cut in the case. These were all used in applications that used > small antenna's, so I mounted an SMA on a foot or so of thin coax directly to > a custom bracket I fabricated and attached inside the lid so it was approx > vertical when the lid was open. In all case's the laptop was never charged by > the gel cell's, they only ran the USRP which I recall gave a fairly balanced > run time for the system as a whole. > I'm afraid I didn't take pictures of any of these builds. > -Ian > > > On Sep 23, 2012, at 5:44 PM, davek <davidki...@gmail.com> wrote: > >> im searching for a heavy duty road case to house my laptop and B100 >> for portable use. >> Optionally would like to stick some gel cells in there while away from AC >> power. >> I am thinking putting the laptop and usrp side be side on the top >> with batterys underneath, or laptop on top, usrp / battery under. >> Laptop pulls 20V, USRP 6V. Probably need to create a custom power >> supply / charging circuit? >> I checked the pelican line. the 1600 series looks like it might work.. >> Has anyone ventured into a project like this? If so i would like to >> see case / construction pics. >> thanks >> dave >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
