Sparkfun Venus GPS - with support for 10Hz update rate
I remember someone asking for GPS hardware with faster than 1Hz update rate.
I was recently doing my new CarPC and was playing with GPS modules from Sparkfun.
I am playing with the Venus GPS with SMA connector
* 51 channel acquisition and 14 channel tracking
* SkyTraq based chipset
* 10Hz max update rate (1Hz default)
* Integrated LNA
* Single 2.7-3.3V supply
* 3.3V TTL UART
* Power: 28mA tracking
* Sensitivity: -161dBm
* Accuracy: <2.5m
* Hot start: 1 Seconds
* Cold Start: 29 Seconds
* Supports active or passive antennas
* Supports SBAS (WAAS, EGNOS, MSAS)
The features in bold above stands out rather well. Having said that, this module talks in SPI or TTL, so you will need to interface to your system appropriately.
Also for those who wants to keep the GPS running, 28mA power requirement will be ideal.