SN-4706 GPS/GLONASS chip

The SN-4706 navigation receiver is designed as a surface mount device (SMD), taking into account the mass production requirements.

Specification:

* Number of receive channels: 24
* Mode: All - in - view
* GLONASS: L1-range (1592-1606 MHz), CT-code
* GPS/WAAS/EGNOS: L1-range (1575.42 MHz), C/A-code
* Accuracy of determining (RMS):
o horizontal coordinates:
+ in the autonomous mode 3 m
+ in the differential mode 2 m
o height: 5 m
o velocity: 0,1 m/sec
o time: 25 ns
* Time necessary for receiving navigation parameters,not more than:
o cold start: 50 sec
o hot start: 5 sec
o recapturing after loss of the signal for 20 sec: 3 sec
* Sensitivity: -163 dBW
* Moving parameter limits:
o ground speed: 0 to 500 m/sec
o acceleration: < 5g
o height: < 18 000 m
* Power consumption, not more than:
o holdover mode: 0,9 W
o tracking mode: 0,65 W
o "pulse" mode: 0,45 W
o waiting mode: 0,3 W
* Dimensions: 35х35х7 mm
* Weight: 10 g



Servicing characteristics:

* Operating temperature: -40 to +85°C
* Maximum operating humidity: 98% (at 40°С



Interface:

* Two RS-232Е input/output ports
* Protocols: IEC1162 (NMEA0183), BINR, RTCM SC 104 v2.2
* Baud rate: up to 230400 bit/sec
* Time mark: 1Hz, СMOS levels

more info on
http://www.navis.ru/en/catalog_110_162.html
http://navis.ru/downloads/CH_4706/

Is it possible to replace the internal GPS with a SN-4706 based one ?

 

Comments
Looks like it must be fitted to a pcb
Not an easy simple plug-in
How is the antenna conected,its a weak point with some units

Alex

 

They do have a pcb poard with a glonass/gps receiver:
http://www.navis.ru/en/catalog_110_139.html

i will write a email and ask about the cost of the pcb board and the SN4706 chip.

The european dealer is:

http://www.nvstech.ch/?page_id=5

 

I would be curious what the thickness of the circuit board mounted unit is, plus standoff. Pretty soon, you run into battery...

 

to quote the page with the PCB mounted unit:
50x75x15 mm, 35 grams

1.96x2.9x0.59 inches and 1.2 Oz for you non-metric folks.

 

I have asked nvstech.ch about the costs:

The prices (EXW) for the
samples quantities are below:

CH4706

1-99 pcs: EUR109.-

NAVIOR24

1-5 pcs: EUR229.-

We recommend to use evaluation kits for test applications. Both application
kits are at EUR999.- available but you have an option to return them in a
good condition within 2 months free of charge.

If you have any further questions just feel free to contact us.

Best regards

NVS Technologies AG
Letzaustrasse 2
CH-9462 Montlingen
Switzerland
Tel. +41717600736

 

The pinouts are published.... Please let us know how your modifications go.