FEATURES
· Fast time-to-first-fix and ultra low power consumption
· High performance NemeriX chipset tracks up to 16 satellites in parallel
· Supports standard NMEA-0183, Meade LX200, Celestron NexStar, Synta Binary and
Vixen HTTP protocols
· Automatically detects telescope type (Meade, Celestron, Synta, Vixen or none)
· Switches to standard NMEA output after 30 seconds if no telescope is detected
· Lithium cell sustains internal clock and memory (recharges during normal operation)
· LED power indicator blinks to indicate receiver status (see General
Information)
· Automatic cold start with no user initialization required
· Compact design with integrated antenna/receiver
· One-year warranty (parts & labor)
SPECS
· Size: 47 x 39 x 16 mm (1.9" x 1.5" x 0.6")
· Weight: 70 g (2.5 oz)
· Tracks up to 16 satellites (-152 dBm sensitivity)
· Warm start in 38 seconds (50%), cold start in 45 seconds (50%)
· Update rate: 1 second (default), adjustable*
· Position accuracy: 3 meters CEP (50%), 7m (90%)
· Velocity: 0.1 meters/second, without SA
· Time: +/- 100 nanosecond synchronized to GPS time
· Altitude: 18,000 meters (60,000 feet) max
· Velocity: 515 meters / second (1000 knots) max
· Acceleration: 4 G, max
· Interface: RS-232 with 2 m (78") cable (PS/2 Female)
· Baud rate: 9600 (default), 4800, 19200, 38400*
· NMEA-0183 Version 2.2 ASCII output: GPGGA, GPGSA, GPGSV, GPRMC, GPVTG
· Meade LX200 Command Set
· Celestron NexStar Communication Protocol (requires hand control firmware version 2.3,
104.0 or 4.0+)
· Synta Binary Protocol (requires hand control firmware version 3.10+)
· Vixen HTTP Protocol (requires firmware version 1.2 build 31 or newer)
· User selectable NMEA sentences also include: GPGLL, GPZDA*
· Power: 3.6 to 5.5 V @ 35 ma
· Backup power: 3V rechargeable lithium cell (350 hours)
· Operating temperature: -40 to +85°C (-40 to +185°F)
· Relative humidity: 5% to 90% non-condensing
COMPATIBLE WITH MOST MAPPING SOFTWARE:
(Software not included, requires GPS-DB9, GPS-USB
or GPS-PDA cable)
· MS Street & Trips
(requires 4800 baud output setting)*
· Delorme Street Atlas
· Fugawi
· OziExplorer
· any software that supports the NMEA-0183 protocol
CHANGING
GPS-NX01 OUTPUT SETTINGS:
* A GPS-DB9 or GPS-USB cable
is required to adjust the output settings.
GPSView allows you to
change the GPS-NX01 output settings for use with other software. In most cases
this is not necessary since the GPS-NX01 will automatically switch to NMEA
output after 30 seconds if a telescope is not detected (see table below).
-
If you are using a GPS-USB cable, begin by downloading and installing the
Windows USB driver from http://www.stargps.ca/pub/pl-2303.zip
(Windows 98/ME/2000/XP) or
http://www.stargps.ca/pub/pl-2303Vista32.zip
(Windows Vista 32-bit) or
http://www.stargps.ca/pub/pl-2303Vista64.zip
(Windows Vista 64-bit)
This allows the USB port to operate as a virtual COM port.
-
Make sure the GPS-NX01 is attached to your PC (using a GPS-DB9 or GPS-USB
cable).
-
Verify that the GPS LED is turned on (it should be getting power from the
PC).
-
Download and run the GPSView program from http://www.stargps.ca/pub/GPSView.exe.
-
Select the Serial Port COM port and 9600 baud.
-
Click on the "Open Port" button.
-
Choose the output settings that you want and then click "Set NMEA".
-
You will see NMEA messages being output.
-
The GPS-NX01 is now configured and will maintain these settings as long
as the internal battery is charged. Once the battery is discharged the
output settings will revert to the default rates listed below.
-
IMPORTANT - the baud rate must be set to 9600 for telescope use.
| Message |
default |
no
telescope |
| GGA |
0 |
1 |
| GLL |
0 |
0 |
| GSA |
0 |
3 |
| GSV |
0 |
3 |
| RMC |
0 |
1 |
| VTG |
0 |
1 |
