Ready-Market, where you can find GPS chips suppliers. If you are looking for a GPS device, look no further than Taiwan suppliers.

A GPS device is like a map on steroids.  First of all, it always gives you that little.  You Are Here!  You no longer need to figure that out for yourself.  And all you need to do is tell it where you want to go and it will plot the course for you.  It doesn't end there, however, New GPS units will provide you with voice guided directions for the entire trip, tell you where the nearest gas station is, and will even put you back on course if you take a wrong turn.  There are four main types of GPS units; the car navigation system, the portable outdoors unit, the marine system, and the PDA/GPS hybrid.  Before buying one, there are some considerations.

Which type of GPS do you need?

Budget Considerations

Where to buy, what to buy

GPS buying tips

1. Good resolution, good screen quality without being a distraction

2. Time and money saving features (gas, travel time) far outweighs the price

3. Able to save information that you use often so you don't have to repeatedly add new information

4. More than enough memory for the average users needs, usually has maps built-in or downloadable

5. Portable in size so that you can use it as a mount for your vehicle, or even as a handheld (varies)

6. Provides estimation as to when you will arrive at your destination

7. Doesn't just give you a list of restaurants and other hotspots in general terms, but relative to your location gives you exact directions and time estimates

8. Can configure what you want to AVOID: toll roads, highways, etc

9. In conjunction with a satellite service, provides fantastic accuracy in helping you get where you need to

10. Instead of printing out online maps and either having to make pitstops to read it or have a friend in passenger seat read instructions, the GPS unit will read instructions to you in crystal clear format

Taiwan, where you can find qualified GPS chips
 supplier

GPS chips comparison

• MediaTek

Chip set model number：MT3318
Size:10.5*10.5*2.8
Number of satelite received: 51
sensibility:-158 dBm
chip sets: sigle

• Global Locate
  

Chip set model number：Hammerhead
Size:7*7mm
Number of satelite received: N/A
sensibility:-160 dBm
chip sets:RF+S/W

• Qualcomm
  

Chip set model number：RTR6500
Size:N/A
Number of satelite received: 8
sensibility:-159 dBm
chip sets: sigle

• Sony
  

Chip set model number：CXD2951
Size:14*23*1.8mm
Number of satelite received: 12
sensibility:-152 dBm
chip sets: N/A

• SiRF
  

Chip set model number：SiRFstar III
Size:7*10*1.4mm
Number of satelite received: 20
sensibility:-159 dBm
chip sets: sigle

• SkyTraq
  

Chip set model number：Venus634LP
Size:10*10*1.2mm
Number of satelite received: 51
sensibility:-158 dBm
chip sets:N/A

• u-blox
  

Chip set model number：NEO-5Q
Size:16*12.2*2.4mm
Number of satelite received: 50
sensibility:-160 dBm
chip sets:Single GPS model

Efficiency of GPS receiver

• Supplier: HOLUX

Compatible: None
Chipset:MTK
Sensitivity tracking: -158dBm
Acquisition:-146dBm
Accuracy:3meter CEP
Channel:32
Power consumption:29mA
Cold start:36s
Warm start:33sec
Hot start:1.0sec
EEPROM:No
Active antenna detector:No
Interface:UART
Dimensions(mm):10.5*10.5*2.2

• Supplier: Leadtek
  

Compatible: Leadtek LR9548
Chipset:Atmel ATR0601+ATR0625
Sensitivity tracking: -158dBm
Acquisition:-148dBm
Accuracy:2meter CEP
Channel:16
Power consumption:39mA
Cold start:40s
Warm start:33sec
Hot start:3.5sec
EEPROM:Yes
Active antenna detector:No
Interface:USB/UART
Dimensions(mm):24*20*2.8

• Supplier: SkyTraq
  

Compatible: None
Chipset:SkyTraq Venus624
Sensitivity tracking: -159dBm
Acquisition:-155dBm
Accuracy:5meter CEP
Channel:44
Power consumption:30mA
Cold start:35s
Warm start:30sec
Hot start:1sec
EEPROM:No
Active antenna detector:No
Interface:RS232
Dimensions(mm):32.0*32.0*8.0

• Supplier: SkyTraq
  

Compatible: Nemerix
Chipset:SkyTraq Venus521
Sensitivity tracking: -159dBm
Acquisition:-155dBm
Accuracy:5meter CEP
Channel:44
Power consumption:45mA
Cold start:35s
Warm start:32sec
Hot start:1sec
EEPROM:No
Active antenna detector:No
Interface:UART
Dimensions(mm):26.15*26.15*2.8(without antenna)

• Supplier: SiRF
  

Compatible: None
Chipset:SiRF III GSC3F
Sensitivity tracking: -159dBm
Acquisition:-142dBm
Accuracy:2.5meter CEP
Channel:20
Power consumption:70mA
Cold start:42s
Warm start:38sec
Hot start:1sec
EEPROM:No
Active antenna detector:No
Interface:UART
Dimensions(mm):19.0*19.0*2.6

• Supplier: u-blox
  

Compatible: u-blox LEA-4S
Chipset:Atmel ATR0601+ATR0625
Sensitivity tracking: -158dBm
Acquisition:-148dBm
Accuracy:2meter CEP
Channel:16
Power consumption:39mA
Cold start:40s
Warm start:33sec
Hot start:3.5sec
EEPROM:No
Active antenna detector:Yes
Interface:USB/UART
Dimensions(mm):22.4*17.0*3.0

• Supplier: u-blox
  

Compatible: u-blox LEA-4H/4S
Chipset:Atmel ATR0601+ATR0625
Sensitivity tracking: -158dBm
Acquisition:-148dBm
Accuracy:2meter CEP
Channel:16
Power consumption:39mA
Cold start:40s
Warm start:33sec
Hot start:3.5sec
EEPROM:Yes
Active antenna detector:Yes
Interface:USB/UART
Dimensions(mm):22.4*17.0*3.0

• Supplier: u-blox
  

Compatible: u-blox LEA-4H/4S
Chipset:SkyTraq Venus521
Sensitivity tracking: -159dBm
Acquisition:-155dBm
Accuracy:5meter CEP
Channel:44
Power consumption:45mA
Cold start:35s
Warm start:32sec
Hot start:1sec
EEPROM:No
Active antenna detector:No
Interface:UART
Dimensions(mm):22.4*17.0*3.0

What Ready-Market can do for you

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