Intuitive Circuits GeoAudio+ Bedienungsanleitung

GeoAudio+

Version 1.00

Port ble GPS to Audio Encoder / Decoder

with Intern l High Precision GPS Receiver nd Antenn

Description

GeoAudio+ with built-in GPS receiver encodes GPS location, heading, speed, altitude,

date, and time into a continuous audio stream that can be recorded by off-the-shelf

camcorders and DVR (digital video recorder) systems. The encoded audio, automatically

synchronized with the camera video, translates into an exact, permanent record of when

and where the events in the video occurred.

GeoAudio+ decode mode is used during the video playback to convert the encoded audio

back into a GPS NMEA 0183 USB serial stream that can be used by most PC mapping

applications such as Google Earth.

GeoAudio+ includes a 6’ 3.5 mm male-to-male audio cable, 6’ USB A-Male to Mini-B cable,

Microsoft Windows USB driver and diagnostic application disc. 4 AA batteries are not included.

Specific tions

Dimensions: 4.25" x 3.50" x 1.25"

Weight: Without Batteries: 3.9 oz., with 4 AA Batteries: 7.3 oz.

Input Voltage: 5.0 VDC via USB connector, 6.0 VDC via 4 AA batteries

Operating Temperature: -40 C to +85 C

Audio Modulation: FSK

Audio Output Level: -10dB +/- 1dB

Audio Input Level Range: -40.0 to -8.0 dBV

Acceptable Audio Signal to

Noise Ratio:

20.0 dB

Audio In/Out 3.5mm Stereo Jack:

TIP - Left audio channel, RING 1- Right audio channel

RING 2 - Ground

USB Jack: Mini-B

Intern l GPS Receiver Specific tions

Receiver: L1 C/A code, 65-channel

Position Accuracy: 2.5 meters CEP

Velocity Accuracy: 0.1 meters/sec

Time Accuracy: 300ns

Startup Time: 29 second warm/cold start under open sky (average)

Sensitivity: -161dBm tracking

NMEA sentences: GPRMC and GPGGA

Update Rate: 1 z (once per second)

Dynamics: 4G (39.2m/sec2)

Operational Limits:

Altitude < 18,000 meters and velocity < 515 meters/sec (simultaneously)

GeoAudio+ includes an internal GPS antenna. An external GPS antenna version of the

product is also available.

External Antenna (optional): Active, 3.3 or 5.0 Volts DC with gain up to 30dB and noise

figure less than 2db. Male SMA connector.

GeoAudio+ Configur tion

GeoAudio+ has an internal 4 dip switch configuration, audio channel selector jumper, and

encoding audio output level adjustment. GeoAudio+ comes preconfigured for normal

operation. No additional configuration changes are required.

To reconfigure the GeoAudio+ standard configuration disconnect all power to the unit.Carefully

remove the 4 case screws (two of the screws are accessible after removing the battery cover).

Carefully pull the top and bottom of the case apart so not to put strain on the battery wires.

Dip Switch Configur tion:

DIP # Description

1 USB Baud Rate:

OFF = 4,800 baud (default)

ON = 9,600 baud

2 Diagnostic Mode:

OFF = Normal operation (default)

ON = Generate 100 lines of test FSK audio data

3 Raw Debug Mode:

OFF = Normal operation (default)

ON = GPS NMEA data sent directly out USB port instead of

FSK encoding

4 Firmware Flash Upgrade:

OFF = Normal operation (default)

ON = Firmware flash mode

Note: DIP switch inputs are only checked during power-up.

Audio Ch nnel Selector Jumper:

JP1 Description

L Audio encoded/decoded on left channel (default)

R Audio encoded/decoded on right channel

Encoding Audio Output Level Adjustment:

The encoded audio output level of GeoAudio+ can be adjusted via the output level

potentiometer VR1. GeoAudio+ supports microphone to line level output. (Tick #5 of

#11 is default.)

GeoAudio+ Power

GeoAudio+ can be powered by internal 4 AA batteries or external USB source. The AA

batteries can be installed even when a USB power source is supplied. Move the POWER

switch to the desired position. (See Figure 1.0) The green POWER LED on the top of

the case will turn on once power is applied.

Figure 1.0 – Power selection switch

GeoAudio+ C ble Hookup nd Oper tion

GeoAudio+ has two operating modes Encode and Decode:

• Encode mode is used during the video recording process to encode the GPS

information onto the camcorder or DVR (digital video recorder) left or right

audio track

• Decode mode is used during the video playback to convert the encoded audio back

into a GPS NMEA serial stream that GPS mapping software recognizes. During

decode mode the yellow GPS Fix LED will blink.

The ENCODE or DECODE operation mode is selected via the slide switch on the side

of the case. (See Figure 2.0)

Figure 2.0 – Mode selection switch

Encode Mode (Recording) C ble Hookup:

Use the supplied 6’ 3.5 mm audio cable to connect GeoAudio+ to the camcorder mic

input or DVR (digital video recorder) audio input. (See Figure 3.0 and 4.0)

Figure 3.0 – Camcorder Recording Hookup Figure 4.0 – D R Recording Hookup

Encode Mode (Recording) Oper tion:

After powering-up GeoAudio+ the yellow GPS Fix LED on the top of the case will

turn on once there is a good GPS fix (a minimum of 4 GPS satellites are being tracked.)

If the yellow GPS Fix LED does not turn on after approximately 2 minutes then verify

that the GeoAudio+ top of the case is facing up to a clear view to the open sky or the

optional external GPS antenna has a clear view to the open sky.

An audio adaptor connector may be required.

Decode Mode (Pl yb ck) Oper tion:

The yellow GPS Fix LED on the top of the case will blink during decode mode. For

PC operations please see the following sections for USB device driver installation and

mapping software configuration. Once the USB device driver has been installed then

PC mapping applications such as Google Earth can be used to view when and where

the events in the video being played back occurred.

The proper playback audio level must be set for reliable GPS decoding. Start with a

low output level then increase until reliable decoding occurs. DO NOT TURN THE

OLUME TO MAX!

Figure 5.0 – PC Playback Hookup Figure 6.0 – Camcorder Playback Hookup

Figure 7.0 – D R Playback Hookup

Decode Mode (Pl yb ck) C ble Hookup:

There are several playback hook-up options:

• Option #1 (see Figure 5.0) - use the supplied 6’ 3.5 mm audio cable and 6’ USB

A-Male to Mini-B cable to connect GeoAudio+ to the user’s PC.

• Option #2 (see Figure 6.0) - use the supplied 6’ 3.5 mm audio cable and 6’ USB

A-Male to Mini-B cable to connect the camcorder, GeoAudio+, and the user’s PC.

• Option #3 (see Figure 7.0) - use the supplied 6’ 3.5 mm audio cable and 6’ USB

A-Male to Mini-B cable to connect the DVR, GeoAudio+, and the user’s PC.

GeoAudio+ Windows USB Device Driver

nd Di gnostic Utility Inst ll tion

A USB software device driver must first be installed on a Microsoft Windows® PC

before GeoAudio+ can interface with PC applications. GeoAudio+ includes a disc with

the Microsoft Windows® USB device driver and GeoAudio+ Diagnostic Utility. Please

USB Device Driver:

To install the GeoAudio+ USB driver insert the supplied disc and run CDMxxxxx_Setup.exe.

If there are no error messages then the device driver was installed correctly.

The first time GeoAudio+ is connected to the PC and powered on Windows should

display two messages “Installing device driver software” followed by “Your device is

ready to use.”

GeoAudio+ Di gnostic Utility Inst ll tion:

The GeoAudio+ Diagnostic Utility (see Figure 8.0) is a tool for verifying that the

GeoAudio+ is connected to the PC properly and decoded GPS information is being

received. GeoAudio+ Diagnostic Utility is not required to use GeoAudio+ but helpful

for troubleshooting.

To install the GeoAudio+ Diagnostic Utility insert the supplied disc, run setup.exe,

and follow the installation instructions.

Figure 8.0 – GeoAudio+ Diagnostic Utility

Mpping Applic tion - Google E rth

GeoAudio+ can interface with most GIS (geographic information system) mapping

applications such as Google Earth. Google Earth requires a 4,800 baud rate so confirm

GeoAudio+ is configured for 4,800 baud (see Dip Switch Configuration above).

The supplied GeoAudio+ virtual COM port software driver causes the GeoAudio+

USB device to appear as a PC serial COM port. Mapping software such as Google

Earth can access the GeoAudio+ USB device in the same way as it would access a

standard PC serial COM port attached to an external GPS receiver.

To access Google Earth GPS real-time mapping functionality go to the Google Earth’s

menu bar option “Tool” then select “GPS.” From the “GPS Import” window

(see Figure 9.0) select the “Realtime” tab. The “protocol” option must be set to NMEA.

Once the “Start” button is clicked then Google Earth will search for valid serial COM

Ports. Once the GeoAudio+ serial COM Port is found (GeoAudio+ must be decoding

data at that time) then Google Earth will begin updating the map.

Figure 9.0 – Google Earth - GPS Import Window

Intuitive Circuits, LLC

3928 Wardlow Ct.

Troy, MI 48083

Voice: (248) 588-4400

Fax: (248) 588-4455

http://www.icircuits.com

Solution

• Verify POWER switch in correct position

• Verify good AA batteries installed properly

• Wait 2 minutes for GPS satellite lock

• Verify that the GeoAudio+ top of the case is facing

up to a clear view to the open sky (for internal GPS

antenna version)

• Verify cables are connected properly and GeoAudio+

in Decode mode (blinking yellow LED)

• Run the GeoAudio+ Diagnostic Utility

• Verify GeoAudio+ and DVR devices are configured

properly (see configuration section above)

• The audio output consists of a “squawking” sound

Trouble Shooting Tips

Problem

Green POWER LED off

(won’t power up)

Yellow GPS Fix LED off

while in Encode mode

Mapping software not

updating GPS real-time

position

Wrr nty & Service

If the product fails to perform as described in our product description or specification,

within 1 year from the date of shipment to the buyer, we will repair or replace the

product and/or accessories originally supplied. Failure due to improper installation,

misuse, abuse or accident is not covered by this warranty. Incidental and consequential

damages are not covered by this warranty. The buyer must first obtain a Return

Material Authorization number by calling (248) 588-4400, or send email to

support@icircuits.com. Ship the defective product (with RMA number) to

Intuitive Circuits, 3928 Wardlow Ct., Troy, MI 48083, freight prepaid.

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