Haicom HI-601VT Frequently Asked Questions Manual - page 11

 ================================================================= 

But which NMEA sentences? You know, NMEA has many messages 

and I think, the unit will not sending all. But GPRMC has no altitude in 

the message.

Yes, we only need to know the lon. and lat. 

To save the transmit amount, the decoder only send RMC, GSV, GGA, GSA and WGS 84 data to the PDA 

or PC.

These sentences are good enough for the real time tracking.

I have a question about the 601VT:

Which NMEA-Message send the unit?

There is a SiRF StarIII GPS receiver inside HI-601VT generate the standard NMEA protocol message.

This digital message will transfer to analog voice message sent by the GSM network.

When the phone from the host side receiver this voice message, the user use the inclusive A/D decoder to 

transfer the voice message to the standard digital GPS NMEA format data.

HI-601VT is the real real-time tracker because we use the GSM network instead of GPRS solution.

 ======================================================================= 

 We know this technology and it is interesting, too. 

 Please, could you send me a graphic with the installation car ? 

 There are several details what we need to check in the installation. 

 Another question is, could you explain me how many parts include the product ? 

Unlike traditional metal case vehicle tracking device, HI-601VT can work for both personal or vehicle 

tracking without any installation.

Just place HI-601VT on where the GPS can get satellite signal or throw it into the trunk with GPS antenna out, 

one can instantly start tracking.

You can put HI-601VT on some one back pack or motorbike and start tracking.

Unlike all other trackers, HI-601VT can work with any regular GPS mapping software, Tomtom, Destinator, 

etc. or Google Earth, etc. and no need special software ro go to internet.

========================================================================