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GPS Mouse takes 2-3 minutes to lock
hussain
I have a satglobal Bu-353 gps receiver linked to garmin mobile pc software. As soon as i turn my gps receiver garmin starts showing two signals (out of five) but in this state the gps does not work and garmin says "searching for satellites".

It takes about 2-3 minutes for the gps to obtain a lock.

Can somebody help.



Thanks
tcassidy
Try using it outside.

Terry
hussain
I am using it in my carpc. So it is actually outside. If you mean outside of car well that would be impossible because if i place it outside i will never see it again
tcassidy
If you are using it regularly, it should obtain lock in ~30 seconds. 2-3 minutes is cold start time indicating the GPS has forgotten where it is or has moved a considerable distance since it was last turned on. I have this problem with the internal GPS on my UMPC. Due to poor hardware design, power is not maintained to the GPS. So, even after a day, it requires a 2-3 minute start time.

Is this a new BU-353? I'm not sure if they have an internal battery to maintain the almanac. But if they do it is dead.

Terry
Marvin Hlavac
... but if it's not too too old, the BU-353 is likely not the problem. Quite often, in CarPC setups, this type of issue is related to some RF interference (USB GPS too close to something, for example LCD display), or the length of USB extension cable (too long USB extension will reduce voltage. You may need powered USB hub), or just simply inferior location of the GPS receiver (GPS receivers need to see the sky in many directions to receive signals from several GPS satellites).
hussain
I have connected it directly to usb port of motherboard. The length of the usb hub is also standar. It is near the carpc and speakers, so what do you say.

I will move it around and report back later.
Marvin Hlavac
Yeah, move it around a bit. It will most likely fix the problem.
Ken in Regina
If it is very quickly getting one or two signals and then taking a long time to get the lock, it's probably not a cold start problem. It's more likely a bad location.

The only good location for a GPS receiver inside a vehicle, especially ones with a very small antenna like the USB receivers, is up on the dash as close to the glass as you can get it. That's why I think Bluetooth receivers are the best answer for laptops and carPCs.

...ken...
Marvin Hlavac
Ken, actually BU-353 is of a decent size . You definitely should try it. It is a proven performer, a very very good unit. I'll send you one next week.
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