Sanav SANAV FV-M7 User manual

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MTK-3301 GPS Receiver Series
Model: FV-M7 GPS Receiver
USER’S GUIDE
The objective of The FV-M7 User’s Guide is to help users to understand the
properties of FV-M7 thoroughly and, therefore, obtain the axi u perfor ance
fro the odule easily. This docu ent describes and provides the useful
infor ation the FV-M7 odule, which includes the functions of pins on the odule,
configuration setting and utility. It will help users to understand the capability of the
odule and, therefore, successfully integrate the FV-M7 into users’ GPS syste s.
Each chapter is one of the pieces for the odule and carries its own purpose.
Title FV-M7
S btitle GPS Receiver Module
Doc Type Data Sheet
Doc Id GPS.FV-M7-070516

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Contents
Chapter 1 Introd ction......................................................... 3
1.1 Specifications ............................................................................................4
Chapter 2 Pin Assignment .................................................... 5
2.1 Pin Assign ent.........................................................................................5
2.2 Pin description ..........................................................................................6
Chapter 3 Operating GPS Locator Utility............................... 7
3.1 Connecting Co Port .............................................................................8
3.2 Functional Windows (Interval Setting) ...........................................9
3.3 Functional Windows (Local Ti e Zone Setting)........................10
3.4 Functional Windows (SBAS Setting).............................................. 11
3.5 Functional Windows (Power Mode Setting).................................12
3.6 Functional Windows (Restart Setting) ..........................................13
3.7 Functional Windows (View Default) ...............................................14
3.8 Using Mini GPS to Open Co Port..................................................15
3.9 Using Mini GPS to Setup.....................................................................15
3.9 Using Mini GPS to Setup.....................................................................16
3.10 Using Mini GPS to Save Settings into Flash .............................17
Chapter 4 Available NMEA Messages .................................. 18
4.1 NMEA Protocol ........................................................................................18
Chapter 5 Limited Warranty ............................................... 26

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Chapter 1 Introd ction
The ain goal of FV-M7 is to be used as a part of integrated syste , which can be
a si ple PVT (Position-Velocity-Ti e) syste , for instance, G- ouse, PND
(Personal Navigation Device), or co plex wireless syste s, such as a syste with
GSM function, a syste with Bluetooth function, and a syste with GPRS function.
The odule (FV-M7) can be the best candidate for users’ syste s as the users’
syste s need the careful consideration on the perfor ance, sensitivity, power
consu ption, and/or size of the odule. In the specification of FV-M7 at the next
page, it is noticeable that in addition to excellent start-up ti es and position
accuracy, the updated rate can be up to 5 Hz and the sensitivity of -158db .
If you have any technical questions, please contact us by either e- ail (prefer),
telephone or fax.
e-mail: [e-mail]
Tel: [phone]
Fax: [phone]
When you send a request to us, please prepare the following infor ation that ay
help us to resolve your proble as soon as possible:
1. Serial No. of Product;
2. Type of antenna that is connected to the odule;
3. Operating Syste (OS) of your host PC;
4. Si ple description of your integrated syste ( ay also included peripheral
connections and devices);
5. Describing the way you operate your syste ;
6. Description of failure by text, figure, or both;
7. Contact infor ation, such as na e, address, phone nu ber, and e- ail
address.

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1.1 Specifications
PHYSICAL CONSTRUCTION PERFORMANCE
GPS Chipset MTK-3301
Di ension L40.5 *W35 *H13.7
Sensitivity -158db
Receiving
frequency
1575.42MHZ; C/A code
Weight 11 gra s
SBAS
1 channel (Support WAAS, EGNOS,
MSAS)
DGPS RTCM Protocol
RF Connector
Standard: MCX Jack
Optional: SMA, SMB Jack Receiver
architecture
32 parallel channels
Hot start 1 sec. typical
War start 35 sec. typical
Start-up ti e
Cold start 41sec. typical
Without aid 3.3 CEP
Connector
12pin connector with 1.27
pitch
Position accuracy
DGPS (RTCM) 2.6
Construction Full EMI Shielding Velocity accuracy
0.1 Knot RMS steady state
ENVIRONMENTAL CONDITIONS Update Rate 1 ~ 5Hz
Operating: -30 ~ +80 ℃
Power Supply 3.3~5V +- 5%
Te perature
Storage: -40 ~ +85 ℃ Acquisition 65 A
50 A (first 5 inutes) COMMUNICATION
48 A (after 5 inutes)
Protocol NMEA V3.01
Power
Consu ption
Tracking
41 A (after 20 inutes)
Signal level Default: RS232
Option: UART @ 2.8V
External Antenna
GPS antenna with 2.8V power input
INTERFACE CAPABILITY
Default
RMC, GGA, GSV*5,
VTG, GSA*5
Standard Output
Sentences
Optional
GLL, ZDA
Baud Rate
4800 bps (default) &
4800/9600/38400/57600/115200 bps
are adjustable

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Chapter 2 Pin Assignment
2.1 Pin Assignment
Figure 2.1 shows the pin definitions of FV-M7. Table 2.1 describes the corresponding
definitions for pins.
Figure 2.1 FV-M7 Pin definitions

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2.2 Pin description
VIN (DC power inp t):
This is the ain DC supply for a 3.3V ~ 5V +- 5% DC input power odule board.
BATTERY (Back p battery):
This is the battery backup input that powers the SRAM and RTC when ain power is re oved.
Typical current draw is <10uA. Without an external backup battery, the odule/engine board
will execute a cold star after every turn on. To achieve the faster start-up offered by a hot or
war start, a battery backup ust be connected. The battery voltage should be between
2.0v and 5.0v.
TIMEMARK (1PPS):
User can use this pin for special function.
For exa ple, on/off LED
Output TTL level, 0V ~ 2.8V, 1PPS ti e ark output
TXA:
This is the ain trans its channel for outputting navigation and easure ent data to user’s
navigation software or user written software.
Output RS-232 level, 0V ~ 6V or Output TTL level, 0V ~ 2.8V
RXA:
This is the ain receive channel for receiving software co ands to the engine board fro
MiniGPS or GPS Locator Utility (SV-3301) software or fro user written software.
Input RS-232 level, 0V ~ 6V or Input TTL level, 0V ~ 2.8V
GND:
GND provides the ground for the engine board. Connect all grounds.
RXB:
This is ainly used to receive RTCM signals for differential purpose. Please note that a MTK
co and ust be sent to open this port first so that the RXB will receive the RTMC properly.
Input RS-232 level, 0V ~ 6V or Input TTL level, 0V ~ 2.8V
PBRES:
This pin provides active-low reset input to the GPS receiver odule. It akes the GPS
receiver odule to reset and search the GPS again.

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Chapter 3 Operating GPS Locator Utility
GPS Locator Utility V2.61 is the latest utility for configuring the GPS settings of
Sanav GPS receivers. You can find the utility in the CD (FV-M7\Utility\Setup) and the
password is in License.txt. Double click on the Setup.exe and follow the installation
procedures.
GPS Locator Utility (Version 2.61), an application progra for FV-M7, enables
you to do the configurations on the unit. Below are instructions of how to work with
this software, with assu ption that you have successfully installed GPS Locator
Utility.
Mini GPS is an utility fro MTK. If the users would like to read 32-channel, change
update rate (1 ~5Hz) and baud rate, please use Mini GPS.

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3.1 Connecting Com Port
After selecting the Co Port, bard rate and Co and Setting, click on “Connect”
and you will be able to do the configurations.
Select the ComPort
Select baud rate (default of 800)
Select SV3310, which is the same as MTK-3301

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3.2 F nctional Windows (Interval Setting)
After connecting with success, you can view the NMEA data fro different functional
windows. The configurations can be done in the “User Setting” window. On top of
the “User Setting” window, there are several taps. Please select the taps for
different settings.
Note: After finishing interval setting, click “Send” to confirm the setting
before proceeding next tap window for the other setting.
Note: If there is no back p power connected, all the settings will go back
to defa lt after a power cycle.
User Setting Window, change GPS sentence output interval

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3.3 F nctional Windows (Local Time Zone Setting)
Different local ti e zones are available.
Note: After finishing local time zone setting, click “Send” to confirm the
setting before proceeding next tap window for the other setting.
Note: If there is no back p power connected, all the settings will go back
to defa lt after a power cycle.

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3.4 F nctional Windows (SBAS Setting)
Enable/Disable the SBAS (WAAS).
Note: After selecting the wanted SBAS setting, click “Send” to confirm the
setting before proceeding next tap window for the other setting.
Note: If there is no back p power connected, all the settings will go back
to defa lt after a power cycle.

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3.5 F nctional Windows (Power Mode Setting)
Select the power ode and “Contin o s” is preferred. Please contact Sanav for
ore infor ation about the power ode.
Note: After selecting the wanted power mode setting, click “Send” to
confirm the setting before proceeding next tap window for the
other setting.
Note: If there is no back p power connected, all the settings will go back
to defa lt after a power cycle.

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3.6 F nctional Windows (Restart Setting)
User can restart the unit by using this utility.
Note: After selecting the wanted restart setting, click “Send” to confirm
the setting before proceeding next tap window for the other setting.
Note: If there is no back p power connected, all the settings will go back
to defa lt after a power cycle.

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3.7 F nctional Windows (View Defa lt)
The default of receiver can be seen in this window.

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3.8 Using Mini GPS to Open Com Port
Select the ComPort
Select baud rate (default of 800)

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3.9 Using Mini GPS to Set p
1. Fix update rate can be changed fro 1 ~ 5Hz
2. Baud rate can be changed fro 4800 ~ 115200 bps.
3. When the settings are done, click on “Test” and follow the instruction in the next
page. You will be able to save the settings into the flash.
Setup
Please note if the number of
percentage is over 100, all
setting can’t be allowed.
Test

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3.10 Using Mini GPS to Save Settings into Flash
FV series engine board odule currently offers a function to refresh the fir ware to
your desired setting like baud rate, updated rate or sentences output. Please
co plete the setting at Chapter 3.9 then save the setting at this page by clicking
on the Set. The odule is only allowed the user to refresh the odule 7-8 times.
How any ti es re ain, please see this infor ation at the top of red box above.
Please note when the Setting write protection is arked, no atter how any
ti es left, the odule won’t allow any setting of refreshing.
Test
Set the setting and check the how
many times that can refresh the
module left.

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Chapter 4 Available NMEA Messages
4.1 NMEA Protocol
The NMEA protocol expresses the data in the for at of ASCII. This is a standard
for at for GPS applications.
.1.1 Standard NMEA Messages
The odule can output 7 standard NMEA essages, which are
NMEA O tp t Messages
NMEA Record
Description
GGA Global Positioning Syste Fix Data.
GSA GNSS DOP and Active Satellites
GSV GNSS Satellites in View
RMC Reco ended Mini u Navigation Infor ation
VTG Course Over Ground and Ground Speed
GLL Geographic Position – Latitude / Longitude
ZDA Ti e & Date
Those essages are output at TX1 at the rate of 4800 bps (default setting). When
ore than 4 essaged are chosen, a higher baud rate than 4800 bps is required.
The following will su arize the available NMEA essages. More infor ation about
the NMEA essages refers to “NMEA 0183, Standard For Interfacing Marine
Electronic Devices, Version 3.01.

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GGA – GPS Fix Data
Position fix related data, such as position, ti e, nu ber of satellites in use, etc..
$GPGGA,gga1,gga2,gga3,gga4,gga5,gga6,gga7,gga8,gga9,g
ga10,gga11,gga12,gga13,gga14*hh<CR><LF>
Parameters
Descriptions Notes
gga1 UTC ti e as position is fixed hh ss.sss: hh – hour; –
inute; ss.sss – second
gga2 Latitude
dd . : dd –
degree;
. – inute (0
o
~
90
o
)
gga3 Latitude sector N – North; S - South
gga4 Longitude
ddd . : dd –
degree; . –
inute (0
o
~ 180
o
)
gga5 Longitude sector E – East; W - West
gga6 GPS quality indicator
0 – No fixed or invalid position
1 – SPS Position available
2 – Differential GPS (SPS)
gga7
Nu ber of SVs used in position
esti ation
xx: 00 ~ 12
gga8 HDOP xx.xx: 00.00 ~ 99.99
gga9
Altitude above ean sea level
(geoid)
xx.xxx: 00.000 ~ 99.999
gga10 Unit for Altitude M: eter
gga11 Geoidal separation
gga12 Unit for geoidal separation M: eter
gga13 Age of differential corrections
unit : second; null when DGPS is
not used
gga14 Reference station ID (DGPS) xxxx: 0000 ~ 1023
hh Checksu hex nu ber (2 – character)
<CR><LF> End of essage

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GLL – Geographic Position – Latit de/Longit de
Navigation data and status.
$GPGLL,gll1,gll2,gll3,gll4,gll5,gll6,gll7*hh<CR><LF>
Parameters
Descriptions Notes
gll1 Latitude dd . : dd – degree;
. – inute (0
o
~ 90
o
)
gll2 Latitude sector N – North; S – South
gll3 Longitude
ddd . : dd – degree;
. – inute (0
o
~
180
o
)
gll4 Longitude sector E – East; W – West
gll5 UTC ti e as position is fixed
hh ss.ss: hh – hour; –
inute; ss.ss – second
gll6 Status for position fix A – Valid; V – Invalid
gll7 Navigation ode indicator
A – Autono ous ode (fix);
D – Differential ode (fix);
E – DR (fix);
N – not valid
hh Checksu hex nu ber (2 – character)
<CR><LF> End of essage