• • eTrex handheld GPS unit, 4.4"H x 2.0"W x 1.2"D (11.2 x 5.1 x 3.0 cm) - has been reported to operate with [[http://www.nomad.ee/micros/etrex.shtml][2.5V 130mA (0.325W)] with a low price tag at wal-mart for $120. - Rick Jones

• Garmin - vehicle and handheld units.
  • GPS-35 vehicle GPS unit, low voltage model available.
    • Nice small package, easily mounted. - FreemanPascal

ready-made GPS-units

• MiniAutoGPS - works on Ipaq and Laptop

GPS-boards

-- MarcusWolschon - 27 Apr 2002 repaired formatting, added miniAutoGPS

(someone needs to clean this up later)

Return to the archive index Re: On GPS Chips From: Doug Sutherland Date: Tue, 19 Jun 2001 02:35:07 +0000

Florian Echtler wrote:

> I remember someone mentioning a single-chip GPS receiver a
> while ago. What's its name, where can I get it

royaltek

REB2000 30 x 30 x 8 mm 170 mA @ 3.3V REB2100 40 x 32 x 7 mm 170 mA @ 3.3V REB12R6 71 x 41 x 7 mm 180 mA @ 5.0V REB12R7 71 x 41 x 7 mm 180 mA @ 5.0V REB12R30 71 x 41 x 7 mm 180 mA @ 3.3V

Rotaltek REB2000 30 x 30 x 8 mm 170 mA @ 3.3V = 0.561 W Royaltek REB2100 40 x 32 x 7 mm 170 mA @ 3.3V = 0.561 W Royaltek REB12R6 71 x 41 x 7 mm 180 mA @ 5.0V = 0.900 W Royaltek REB12R7 71 x 41 x 7 mm 180 mA @ 5.0V = 0.900 W Royaltek REB12R30 71 x 41 x 7 mm 180 mA @ 3.3V = 0.594 W

Here are some other small receivers based on Sirf tech: http://www.u-blox.ch/gps/gps-ms1e/index.html http://www.sirf.com/photos.htm

Laipac

• http://www.laipac.com/products/gps.htm

Laipac TF30 40 x 40 x ?? mm 140 mA @ 3.3V Price $130 http://www.laipac.com/msg4.htm

Sirf tech

• http://www.u-blox.ch/gps/gps-ms1e/index.html
• http://www.sirf.com/photos.htm

Motorola

Trimble

Laipac TF30 40 x 40 x ?? mm 140 mA @ 3.3V Price $130 http://www.laipac.com/msg4.htm

Sigem

Rotaltek REB2000 30 x 30 x 8 mm 170 mA @ 3.3V = 0.561 W Royaltek REB2100 40 x 32 x 7 mm 170 mA @ 3.3V = 0.561 W Royaltek REB12R6 71 x 41 x 7 mm 180 mA @ 5.0V = 0.900 W Royaltek REB12R7 71 x 41 x 7 mm 180 mA @ 5.0V = 0.900 W Royaltek REB12R30 71 x 41 x 7 mm 180 mA @ 3.3V = 0.594 W

-- Doug

%META:TOPICINFO{author="MarcusWolschon" date="1014502225" format="1.0" version="1.1"}% %META:TOPICPARENT{name="WebHome"}%

(someone needs to clean this up later)

Return to the archive index
Re: On GPS Chips
From: Doug Sutherland
Date: Tue, 19 Jun 2001 02:35:07 +0000

Florian Echtler wrote:

> I remember someone mentioning a single-chip GPS receiver a 
> while ago. What's its name, where can I get it

A while ago Dr Altaica mentioned the small GPS receivers at 
Tri-M systems. I remember the post saying that they were in 
DIP packaging (ie single chip), but all I found were the 
Royaltek GPS receivers. They aren't really single chip but 
they are very small modules. I have never seen a single chip 
GPS receiver. If there is one in DIP packaging, I'd love to 
know about it, since it would drop right into my soldered 
breadboard material and mate with a microcontroller very 
easily. It appears that the Royaltek receivers could mate to 
a microcontroller with ribbon cable, or to a host PC with 
addition of RS232 level converter IC.  

http://www.tri-m.com/products/royaltek.products.html

Some of the models are a lot bigger than others:
  REB2000     30 x 30 x 8 mm    170 mA @ 3.3V
  REB2100     40 x 32 x 7 mm    170 mA @ 3.3V
  REB12R6     71 x 41 x 7 mm    180 mA @ 5.0V
  REB12R7     71 x 41 x 7 mm    180 mA @ 5.0V
  REB12R30    71 x 41 x 7 mm    180 mA @ 3.3V      
(also with atached antenna as OEM-package.) Prices are about 100-120$

They all seem to have NMEA 0183 output, which is acsii text, and they 
are TTL serial, can be connected direct to microcontroller or to host 
RS232 port with addition of a DS275 or MAX232 level converter. There 
are no advanced binary features on these. I bet they are cheap for 
that reason. The REB2000 looks good to me. 

> how much does it cost
No idea on price. They're not in the EMJ catalog.

> what kind of data do I get (hopefully NMEA?) etc. etc.
NMEA 0183 and that's all.

Here are some other small receivers based on Sirf tech:
http://www.u-blox.ch/gps/gps-ms1e/index.html
http://www.sirf.com/photos.htm
I bought a GPS-MS1E for $155 online but its 84-pin PLCC
Its 30 x 30 mm 

Motorola has a GPS chip but its 64-pin ball grid array
http://www.motorola.com/ies/GPS/products/prodmg2000.html

My Motorola GT Oncore is 83 x 51 x 16mm. 0.9 watts
http://www.motorola.com/ies/GPS/products/prodgt.html
Nice receiver but I'm liking that REB2000 30x30x8 footprint.
GT Oncore has much more advanced features using mot binary.

Trimble has some embedded modules:
Lassen LP    66 x 32 x 12 mm    61 mA @ 3.3V!!!
Lassen SKII  82 x 31 x 10 mm   120 mA @ 5.0V
These have NMEA plus binary protocol
http://www.trimble.com/oem/om_embed.htm

Laipac TF30  40 x 40 x ?? mm   140 mA @ 3.3V Price $130 
http://www.laipac.com/msg4.htm

Sigem has some small modules too:
5610   80 x 40 x  9 mm   100 mA @ 5.0V 
5607   71 x 56 x 10 mm   
5608   89 x 33 x  8 mm
http://www.sigem.ca/contentpages/4_gps_engines.htm Here's a summary of all of the above OEM modules

U-Blox    GPS-MS1E     30 x 30 x  ? mm   140 mA @ 3.3V = 0.462 W 
Rotaltek  REB2000      30 x 30 x  8 mm   170 mA @ 3.3V = 0.561 W
Royaltek  REB2100      40 x 32 x  7 mm   170 mA @ 3.3V = 0.561 W
Royaltek  REB12R6      71 x 41 x  7 mm   180 mA @ 5.0V = 0.900 W
Royaltek  REB12R7      71 x 41 x  7 mm   180 mA @ 5.0V = 0.900 W
Royaltek  REB12R30     71 x 41 x  7 mm   180 mA @ 3.3V = 0.594 W
Motorola  GT Oncore    83 x 51 x 16 mm.  180 mA @ 5.0V = 0.900 W
Trimble   Lassen LP    66 x 32 x 12 mm   61  mA @ 3.3V = 0.201 W 
Trimble   Lassen SKII  82 x 31 x 10 mm   120 mA @ 5.0V = 0.600 W
Laipac    TF30         40 x 40 x  ? mm   140 mA @ 3.3V = 0.462 W
Sigem     5610         80 x 40 x  9 mm   100 mA @ 5.0V = 0.500 W 
Sigem     5607         71 x 56 x 10 mm   ?    
Sigem     5608         89 x 33 x  8 mm   ?      

Given the small package (30x30mm) and simple interface (header)
on Royaltek REB2000, that will likely be my next receiver. It 
has no binary protocol but is oh so small. Lassen LP looks nice 
at 0.2 watts and 66x32 footprint. I have no idea how these power 
figures compare to the consumer RS232 or USB devices. These 
comparisons should be articles in a wearable magazine!!!

  -- Doug

-- MarcusWolschon - 23 Feb 2002