Qstarz

Qstarz International Co., Ltd. is based in Taipei, Taiwan and produces consumer GPS devices. The company also works as an OEM and ODM.

GPS Week Number Rollover (WNRO)[1]

Regarding the GPS Week Number Rollover (WNRO) issue, the GPS date and time are calculated based on the number of week during the development of the GPS system, and the week number of the chip plan can only be calculated up to 1024 weeks, or about 19.7 years. After every 1024 weeks, this counter is "reset" to zero and the GPS time starts counting again. The first GPS week rollover occurred in August 1999. The second time will occur on April 6, 2019.

Qstarz models having new firmware:

BT-Q818XT

BT-Q1000XT

BT-Q1000XTM

BT-Q1300ST

CR-Q1100P

LT-Q6000

LT-6000S - Contact Qstarz

BT-Q1000EX 10Hz - Contact Qstarz

BT-Q818

Small bluetooth GPS mouse, reasonably priced at €85 (March 2007), excluding shipping.

Qstarz BT-Q818
Description	receiver
GNSS	32 channels chipset: MTK augmentation: WAAS; EGNOS
Memory	Internal: .
Connectivity	bluetooth
Features	addresses points of interest mass storage mode Waterproof
Price	85$
Pros	Accuracy seems good enough for mapping streets in old city centers like, for example, Amsterdam and still get reasonable tracks. The somewhat extreme battery-life of 32 hours The auto-on/off function is nice; it goes to sleep when you don't use it (but, see bad, below) Aside from the two charging solutions, it can be charged off a normal USB connection (if you have the correct cable, it requires normal USB to mini-usb)
Cons	This one may not actually be a problem with the device. It seems the auto-on/off function may sometimes interfere with proper operation of the unit, apparently depending on what software you use. I experienced lost connections while using it with Mobile Trail Explorer, resulting in traces that stopped before I actually wanted to stop logging. So, not good, that. On the other hand, using nmea_info.py, this problem seemed to occur less often and, more importantly, when it happened the software would notice and simply reconnect.
Notes	Some specs as specified by the manufacturer: Protocol: NMEA-0183 (v. 3.01) Bluetooth: V1.2, 15 metres in open space Sensitivity: -158 dBm Auto on-off functionality Comes with two chargers; one for normal outlets and one for car lighter sockets. Might be the same device as Transystem i-Blue 747.

BT-Q1000

Similar to BT-Q1000P but can just store up to 100.000 waypoints.

Qstarz BT-Q1000
Description	logger
GNSS	51 channels chipset: MTK augmentation: WAAS; EGNOS DOP: HDOP; VDOP; PDOP
Memory	Internal: 2MB (100.000 max logging).
Connectivity	bluetooth; usb
Features	addresses points of interest mass storage mode Waterproof
Price	100$

BT-Q1000P

It's a bluetooth GPS logger based on the MTK chipset.

Qstarz BT-Q1000P
Description	logger
GNSS	51 channels chipset: MTK augmentation: WAAS; EGNOS DOP: HDOP; VDOP; PDOP
Memory	Internal: 4MB (200.000 max logging).
Connectivity	bluetooth; usb
Batteries	internal Nokia BL-5C LiIon (32hrs lifetime)
Features	addresses points of interest mass storage mode Waterproof
Price	100$
Notes	Sensitivity: -158 dBm Support One Touch to turn On/Off LOG mode Up to 200,000 records WAAS+EGNOS+MSAS Auto On-Off function in NAV Mode, always on in LOG Mode The device can be set up and logs can be downloaded over bluetooth with the MTK GPS Datalogger Device Control Tool BT747 which can be used on Windows, Linux, Java Phones, PalmOS and WinCE. With this Software the Qstarz can be configured to log at up to 5 Hz!

BT-Q1000X

Bluetooth GPS logger based on the MTK II chipset. gpsbabel and mtkbabel work out-of-the-box with this device.

Successor to the BT-Q1000P. Mostly a clone of the i-Blue 747. Has a rubberized finish.

Qstarz BT-Q1000X
Description	logger
GNSS	66 channels chipset: MTK II augmentation: WAAS; EGNOS; MSAS DOP: HDOP; VDOP; PDOP
Memory	Internal: 4MB (200.000 max logging).
Connectivity	bluetooth; usb
Features	addresses points of interest mass storage mode Waterproof
Price	100$
Website	[2], [3]

BT-Q1000eX

Version of the BT-Q1000x with double the memory and vibration sensor.

Qstarz BT-Q1000eX
Description	logger
GNSS	66 channels chipset: MTK II augmentation: WAAS; EGNOS; MSAS DOP: HDOP; VDOP; PDOP
Memory	Internal: 8MB (400.000 max logging).
Connectivity	bluetooth; usb
Features	addresses points of interest mass storage mode Waterproof
Price	100$
Website	http://www.geardiary.com/2010/03/02/review-qstarz-bt-q1000ex-xtreme-recorder/

BT-Q1200 Solar

This is also referred as Super 99 Bluetooth GPS Travel Recorder. The small solar panel on the front of the device helps to preserve the battery.

Qstarz BT-Q1200 Solar

Qstarz BT-Q1200 Solar
Description	logger
GNSS	51 channels chipset: MTK augmentation: WAAS; EGNOS; MSAS DOP: HDOP; VDOP; PDOP
Memory	Internal: 2MB (200.000 max logging).
Connectivity	bluetooth; usb
Features	addresses points of interest mass storage mode Waterproof
Price	130€
Notes	The good news is that this device is perfectly working with linux using the BT747 tool. Note that this device has a smaller patch antenna than the BT-Q1000 models which may impact sensitivity. See the review at gpspassion

BT-Q1300

Qstarz BT-Q1300
Description	logger
GNSS	66 channels chipset: MTK augmentation: WAAS; EGNOS; MSAS DOP: HDOP; VDOP; PDOP
Memory	Internal: 4MB (200.000 max logging).
Connectivity	bluetooth; usb
Features	addresses points of interest mass storage mode Waterproof
Price	119€
Website	http://www.qstarz.com/Products/GPS%20Products/BT-Q1300-F.htm
Notes	BT747 is compatible with the BT-Q1300 too.