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 [New Product] i-Blue GPS "wakes up" on Bluetooth

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T O P I C    R E V I E W
semsons Posted - 21 déc. 2005 : 16:06:14
We are pleased to announce the availability of iBlue GPS Receiver. iBlue GPS Receiver with Auto On/Off and Smart Power Save technology is the first GPS that "wakes up" on Bluetooth. The new generation Nemerix chipset offers better performance while keeping the power consumption ultra low. On single charge, it can operate for 30 hours or standby for 360 hours.

Click here for more information
15   L A T E S T    R E P L I E S    (Newest First)
gpspassion Posted - 01 mars 2006 : 02:29:50
Not that I know of, no, I think that SiRF based receivers set to SiRF binary mode can do that.

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jbeale Posted - 28 févr. 2006 : 22:52:11
Does anyone know if the i-Blue (Nemerex v3.7 chipset) can be set to a mode that outputs raw pseudorange and phase information? Or if not, are there any other Bluetooth-type GPS receivers that can do this?
semsons Posted - 11 janv. 2006 : 18:36:25
1A means that maximum current that charger can supply. The device will just take the amount it needs. Thus, you don't need to worry about over charging the device.
sooby77 Posted - 10 janv. 2006 : 19:30:42
Can I damage i-Blue if I charge it with a 1Amp car charger instead of a 850mA as provided by the manufacturer?
gpspassion Posted - 09 janv. 2006 : 05:02:47
They all have a 5.4v chargers as 5v is not enough to recharge the unit as I've mentioned several times before, see details two messages above.

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sooby77 Posted - 09 janv. 2006 : 02:44:03
Semsons, can I charge my i-Blue with a car charger 5V (850mA)? The car charger that came with i-Blue is a 5.4+-(0.2V), 850mA. The GPS device label (after you take out the battery), shows that it is a 5V device. Can you check on that for us? Thanks.
semsons Posted - 30 déc. 2005 : 23:59:55
Holux GPSlim 236 can be charged through USB port on a computer. Yes, you can upgrade to 14" pedestal windshield mount. This option has been added to our website.
john0902 Posted - 30 déc. 2005 : 19:57:42
Thanks much for these details -- it's great to know all the facts ahead of time when designing a solution, rather than getting unpleasantly surprised when the pieces are already in place. I'm trying to decide between the i-Blue and the Holux GPSlim 236 before your sales on each unit ends, so this is much appreciated.

Interesting that the i-Blue voltage requirements are high. I assume a GPS receiver can run off of USB -- isn't that what the USB mouse units are doing. I guess for some reason i-Blue had different engineering requirements -- maybe that's the price of the longer battery life, which would certainly be a fair trade-off.

How does the Holux GPSlim 236 handle its power needs? When it's running in USB cable mode, is it just running -- or is it running and also charging its battery? If Holux prefers 5v/1000mA, can it charge off standard USB 5v/500mA, just half as fast?

BTW, I see with these units that I can get the free vent mount, or pay $5 extra for the 9" windshield mount. Is there also a way that I can bump up to the 14" windshield mount for the extra $2, like you can bump up when buying the windshield mount separately?
semsons Posted - 30 déc. 2005 : 19:18:26
To answer your question, we have checked the voltage of the chargers.

For AC charger, the voltage is 5.2V. For Car charger, the voltage is 5.4V.

We have tested to see if i-Blue can be charged from standard USB port on a laptop or desktop. The computer USB port can charge i-Blue but not running i-Blue at the same time.
john0902 Posted - 30 déc. 2005 : 06:13:27
Thanks for the clarification, I missed the meaning of the 'wrong charger' reference in the review follow-up.

Are other units perhaps capable of charging/running off of standard USB power? I see in the manual for the Holux GPSlim 236 that it also uses a mini-USB input and that its "approved power supply" is "5.0V +/- 5%@1A".

I just did a little more research and got some specs from a web site that sells power adapter for PDA's, etc. Apparently, here are some specs:

AC Adapters for various devices:
Compaq Ipaq (5.0v/2A)
Palm M5xx (5.0v/1A)
Garmin iQue (5.0v/1A)
Holux GPSlim 236 5.0V+/-5%/1A (from above)

Standard USB power
USB to PDA charge cable

Notice on this page, they include the warning that since many PDA adapters are 5V/2A and power output from a standard USB port is only 5V/500mA, "it takes longer for USB charge cable to charge the PPC. In practice, it takes 2-3 hours to fully charge the PPC with USB charge cable." So, judging how long my own PDA takes to charge (~30mins), I seems like the lesser amounts of amps simply slows the charging proportionally -- but supposedly charging still works.

Note, also that they sell a similarly powered car adapter that has slightly higher amperage than USB, but still less then AC. It also varies from 5v-5.2v.
USB cigarette adapter

They even have a AA battery to PDA adapter
that supposedly works and runs from 4.8v-5.2v with four 1.2V-1.3v/1500mAh NiMH batteries.

However for some PDA's which they claim require 5.5v-5.9v, then they recommend a higher voltage unit.
Higher voltage USB cigarette adapter

So, judging from these numbers, it seems somewhat unusual that the i-Blue wouldn't work at 5v, even if it required 5.2v -- although it might charge only 1/2 to 1/4 as fast if it's looking for 1000 or 2000mA but only gett 500mA. However, if the i-Blue needed >5.5v, it would be consistent with these other numbers if it wouldn't charge on standard USB.

It'd be a drag if the i-Blue needs it's own special USB port for power -- I can imagine on a long trip the hassle of having one cigarette adapter for the GPS unit, one for the PDA, one for a laptop, one for my FM Modulator ( ), etc. A far more elegant design would be to instead have only one adapter for the cigarette lighter (e.g. laptop or FM Modulator) and then power other accessories off the USB on that single plugged-in device.

Do the AC and car adapters for the i-Blue list their voltage and amperage? Do you think maybe it could have been charging slowly from reduced aperage, or do you really think it isn't tolerant of +/-5% on it's voltage.

Thanks again for your help.
gpspassion Posted - 29 déc. 2005 : 22:50:13
Yes standard USB, but like I pointed out in the review (see link above), it wants 5.2v so a laptop won't do most likely, it will recharge and work at the same time with 5.2v though.

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john0902 Posted - 29 déc. 2005 : 19:53:02
The manual available for download for this product shows a mini-USB input jack for the power -- however, it doesn't illustrate what the other end of the power cord looks like. (Although in picture of the box, the "car adapter" looks like it is just a cigarette-lighter-to-USB adapter.)

Am I correct in assuming that the power input for this unit is a standard USB cable, and that it takes a standard USB 5v input? As such, would this unit take power then from any USB port that provides 5v power -- like a laptop USB port, or another brand's standard cigarett-lighter-to-USB adapter?

Also, if the battery is totally out, can the unit run off this external power? And, if so, will it similtaneously be able to charge the battery as well?

Thanks for any info!
Greyhound Posted - 27 déc. 2005 : 03:38:49
I feel sorry, Philippines is not included in Paypal. Can I still be a club member?
semsons Posted - 26 déc. 2005 : 21:19:47
Please support gpspassion by becoming a Club Member. You will receive the 10% discount code directly from gpspassion. For more detail information, please check the link below.

Happy Holidays.
Greyhound Posted - 26 déc. 2005 : 17:24:50
I'm a new member of this group and I ordered an I-Blue. How can I avail of an $85.50 price? My email address is

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