OK I have been using the BU-353 for a few months no.. it works good the prolific drivers give no trouble at all..it is OK..
now the only problem I have is that it takes some time for it to get tha sats data for tha first time.. as soon as I move the unit outside.(I have it placed near the rear windsheild) it gets the signal in a few seconds, when the unit is inside it might take as long as 5 minutes.. but as soon as it has 5-6 sats then it works ok even if i put it back inside .. has anyone tried to make an antenna for it.. or better try to keep it powered up so it would never loose the sat data??!!
i don't know if it will work but, using batteries (lithium rechargable) along with a diode, would keep it powered for 2-3 days when not starting the car (the unit as far as I know, has built in capacitors so it would keep the data needed, but I don't know how long before they loose their voltage.
any ideas? i don't want to move the unit outside..(stolen, attracts attention, not really watrer proof..etc.)
You could probably figure out how much power it takes, and if it wouldn't drain the battery, a 5V power source is easy to build. You could power it directly from the battery.
i think it would drain my battery in 10 days or something.. i travel a lot.. and leave the car..
I just want a confirmation that powering it up all the time would solve my problem
how long was your MAX leaving your pc on s3 before buying a new battery ??Mine stays powered up because it is on S3 (suspend to RAM) and the USB 5V remains on when parked. If I park outside, iGuidance usually comes up still running on power up with position fixed. When I park inside my garage, the fix takes 2-3 minutes to acquire after leaving.
I'm not sure where I saw it, but someone made a simple board with a relay, that would apply power to the GPS unit for a few seconds every so often (maybe every 10 mins or half hour?), just enough to keep the internal cap charged. If you're into electronics, it would be a simple project with a 555 timer or small microcontroller.
But don't take it from me! here's a quote from a real, live newbie:
eegeek.netOriginally Posted by Viscouse
i see. thanks for your answers guys.. anyuone attemmpted to open the unit upp and connect an antenna?