Teletype 2951 User Guide

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TeleType Mini-Bluetooth GPS Receiver

User Manual

TeleType

Mini-Bl

uetooth

PS Receive

User Manual

by TeleType Co.

TeleType GPS Mini-Bluetooth GPS Receiver

All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of the publisher.

Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks.

While every precaution has been taken in the preparation of this document, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it. In no event shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused directly or indirectly by this document.

Printed: June 2004 in (Boston, MA USA)

TeleType GPS Mini-Bluetooth GPS ReceiverI

Table of Contents

rt I

Teletype GPS Bluetooth GPS

rt II

Overview

rt III

rt I

rt VI

Features Technical Specification

................................................................................................................................... 31 Basic Specification

................................................................................................................................... 32 Acquistion Time (Averaged)

................................................................................................................................... 43 Receiver Accuracy

................................................................................................................................... 44 Limitations

................................................................................................................................... 45 Power Supply

................................................................................................................................... 46 Output & Interface

................................................................................................................................... 57 Physical Specification

................................................................................................................................... 58 Other Functions

V GPS Signal Reception

Hardware Description

2 2 3 3

5 6

rt VII

rt VIII

rt I

................................................................................................................................... 61 Device Description

................................................................................................................................... 72 LED Status

................................................................................................................................... 73 Power Switch

Understanding Your Receiver

................................................................................................................................... 71 Charging Your Battery

................................................................................................................................... 82 Turning The Power On

................................................................................................................................... 83 Receiver Status Chart

Connection X Frequently Asked Questions X Care and Maintenance

Index

9 11 12

Congratulations on your purchase of the TeleType GPS Mini-Bluetooth GPS receiver with built-in

LiON rechargeable batteries. Before you begin, make sure that your package includes the

following items. If any of these items are missing, please contact

sales@teletype.com

.·TeleType GPS Mini-Bluetooth GPS receiver

Car Power Adapter

A/C Power Adapter

The

TeleType GPS Mini-Bluetooth GPS receiver with built-in LiON rechargeable batteries

(

Product #2951

) pictured above is a total solution GPS receiver with Bluetooth, a UART interface

and a built-in rechargeable battery for high sensitivity to tracking signal.

Its design is based on

the SiRF Star IIe/LP low power architecture and it is a dual-function GPS receiver. The receiver

transmits satellite information through a Pocket PC or a notebook with Bluetooth interfaces. Also,

when transmitting information through a data cable, this G-Mouse GPS receiver is able to deliver

satellite signals to the device without the Bluetooth interface.

This positioning device is useful for many operations such as car navigation, mapping, surveying,

security, agriculture and so on; only a clear view of the sky and a power supply are necessary for

the unit to function. This receiver is able to contact other devices through the Bluetooth interface

or by USB. It also has a built-in rechargeable battery to save satellite information such as the

status of the satellite signal, the most recent location, and the date and time of its last use.

With its low power consumption, the Bluetooth GPS Receiver tracks up to 12 satellites at a time,

re-acquires satellite signals in 100 ms and updates position data every second. Trickle-Power

allows the unit to operate only a fraction of the time and Push-to-Fix permits the user to have a

quick position fix, even though the receiver usually stays off.

eletype GPS Blue

tooth G

Teletype GPS Bluetooth GPS

Overview

TeleType GPS Mini-Bluetooth GPS Receiver3

The TeleType GPS Mini-Bluetooth GPS receiver with built-in LiON rechargeable batteries has

many uses and features. It is well suited for system integration and for users who use Pocket

PCs and laptops with a Bluetooth interface.

Built-in SiRF Star IIe/LP low power consumption chip set

12 parallel satellite tracking channels, for fast acquisition and reacquisition

High-speed signal acquisition using 1,920 time/frequency search channels

Built-in WAAS/EGNOS Demodulator without any required additional hardware

Fully compatible with Bluetooth Serial Port Profile (SPP)

Built-in rechargeable Lithium-ion battery without external power supply

Two modes to suit the user's preference (Power Saving mode and Continue mode)

Allows a terminal contact to another system without a Bluetooth device

Built-in rechargeable battery for memory and RTC backup and for quick Time To First Fix

(TTFF)

Support NMEA0183 v2.2 data protocol and SiRF binary code

4-color LED status indicator

Active antenna connector for getting better satellite reception

FLASH-based program memory

Small, sleek, and lightweight design made to fit in your hand

Enhanced algorithms such as SnapLock and SnapStart provide superior navigation and

performance in seasonal, urban and rural environments

Ideally applied for car navigation, marine navigation, fleet management, AVL, personal

navigation, tracking and mapping.

Basic Specification:

Chip set: SiRF Star IIe/LP

Channels: 12 parallel satellite-tracking channels

Frequency: 1575.42 MHz

Receiver: L1, C/A code

Acquisition Time (Averaged):

Reacquisition: 0.1 seconds

Snap start: < 3 seconds (at < 25 minutes off period)

Cold start: < 45 seconds

Warm start: < 38 seconds

Hot start: < 8 seconds

Update rate: 1 second continuously

Features

4.1

4.2

Technical Specification

Basic Specification

Acquistion Time (Averaged)

Techn

Receiver Accuracy:

Normal: 5 - 25 meters (16 - 82 feet) CEP without SA

Enable EGNOS or WAAS:

Position:

< 2.2 meters (7.2 feet), horizontal 95% of time

< 5 meters (16 feet), vertical 95% of time

Velocity: within 0.1 meters / second

Time: 1 microsecond synchronized GPS time

Limitations:

Altitude: < 18,000 meters (60,000 feet)

Velocity: < 515 meters (1,690 feet) / second (700 Knots)

Acceleration: 4 G

Jerk: 20 meters (66 feet) / second

Power Supply:

External Voltage: 5 VDC +/- 10%

Batteries:

Main Power:

Built-in rechargeable Lithium-ion battery for system power

Backup Power: Rechargeable Lithium-ion battery for memory & RTC backup

Working voltage:

Normal Mode: 80-90 mA

Power Saving Mode: 30 mA

Working period (assuming full battery):

Continue Mode: 9 hours

Power Saving Mode: 16 hours

Output and Interface:

Output:

1) Output protocol

Baud Rate: 9600 bps

Data bit: 8

Parity: No

Stop bit: 1

2) Format: NMEA0183 V2.2

(Optional GLL, VTG or SiRF binary format)

GPGGA (1 time per second)

GPGSA (1 time per second)

GPGSV (1 time per 5 seconds)

ical Specificati

4.3

4.4

4.5

Receiver Accuracy

Limitations

Power Supply

4.6

Output & Interface

TeleType GPS Mini-Bluetooth GPS Receiver5

GPRMC (1 time per second)

3) Datum: WGS84

Input/ Output Interface:

Compatible Bluetooth Serial Port Profile (SPP): v1.1 and class 2 (maximum 10

meter range)

External Antenna Interface:

3.0V input MCX-type active antenna connector

Physical Specification:

Size: 72 mm x 55 mm x 21 mm

Weight: < 75 grams (2.7 ounces)

Operating Temperature: -10

C to + 60

C (14

F to +140

F)·Storage Temperature: -20

C to + 85

C (-4

F to +185

F)·Operating humidity: 5% to 95%; No condensing

Other Functions:

Bluetooth frequency: 2.4 ~ 2.48 GHz

Bluetooth Input Sensitivity: -80 dbm

Low sensitivity of receiving satellite signal: -175 dBW

LED Functions: Indicate Bluetooth status, GPS status, Battery Status and Battery

charging status

The TeleType GPS Bluetooth GPS receiver offers high position accuracy and fast Time-To-First-Fix

(TTFF). These rely on environmental factors, such as where the receiver is located and the initial state

of the receiver. While attempting a position fix, the receiver needs to be locked-on to at least four

satellites. The TeleType GPS Bluetooth GPS Receiver then uses the signals received from the

satellites, along with data from the receiver's digital memory about the last position fix, in order to

compute the current location of the device.

Environmental factors that influence position accuracy and initial GPS position fix are:

Tall buildings

Narrow street and passageway

Protection film on glass

Heavy foliage

Large cliffs

Other obstructions where the satellite signals may blocked

4.7

4.8

Physical Specification

Other Functions

GPS Signal Reception

GPS Signal Recepti

Poor satellite geometry situations

The initial state of the receiver refers to the last status of the receiver in memory. This mainly

determines the length of time it will take for your GPS receiver to obtain a position fix. Your position

can be quickly fixed within 8 seconds from a "hot-start" state, and typically 45 seconds from a "cold-

start" state. It takes at least 3 to 5 minutes to obtain a position fix from a completely restart-state, for

example, flying at a distance over 300 miles from the initial origin.

The TeleType GPS Bluetooth GPS Receiver uses the satellite signals to calculate your exact location

by computing your distance from the satellites. The position data within the receiver is then converted

into latitude and longitude coordinates, which are usually provided in the geodetic datum on which the

GPS is based (WGS84). Using the wrong datum can result in position offsets for many miles.

In addition to incorrect datum, there are a number of positioning errors that can occur which affect the

accuracy of your TeleType GPS Bluetooth GPS Receiver. The major errors including satellite orbiting

errors, poor satellite geometry, multi-path signals, atmospheric delay, and receiver clock timing.

Device Description:

*Your actual TeleType GPS Mini-Bluetooth GPS receiver may look different from the one pictured above, but the functions and

buttons are the same.

6.1

Hardware Description

Device Description

TeleType GPS Mini-Bluetooth GPS Receiver7

LED Status:

SYMBOL

COLOR

STATUS

DESCRIPTION

Bluetooth

Blue

Blinking

3 times / second: searching Bluetooth device

1 time / 3 seconds: standby mode

1 time / second: transferring data

Battery

Red

Green

None

Light On:

Light Off:

Low Battery

Charging

Charged or not charging

Power

Orange

Light On:

Blinking:

Acquiring satellites

Position fixed

Power Switch:

I = On

0 = Off

Charging the Battery:

Take the power cable and connect it to the power socket. This will begin to charge the battery.

For the first use, please charge battery until it is full (the LED turns off).

The LED that represents the battery is the right-most battery icon (shown in the first picture).

If the LED is red, that means that the power is too low.

If the LED is green, that means that the power is charging.

If the LED is off, that means that the battery is either full or not charging.

6.2

6.3

LED Status

Power Switch

Understanding Your Receiver

7.1

Charging Your Battery

Understanding Your R

Turn The Power On:

The LED that represents the Bluetooth connection is the middle Bluetooth logo icon (shown in

second picture). The LED that represents the power is the left-most power icon (shown in the

third picture).

Switch the power of the TeleType GPS BlueTooth GPS receiver on.

Make sure that the receiver

is in clear view of the sky without any obstruction for better satellite acquiring.

Your receiver will

search for a connection to a Bluetooth device. While searching, the LED will blink once every

three seconds. If the Bluetooth receiver does not detect any devices, it will turn off in five

minutes.

When the receiver detects a device, it will see if data transfers from the receiver to the device

and the LED will blink every second. It will blink once every three seconds in the case that it is

no longer transferring data, or cannot transfer data and is trying to reconnect to the device. This

is described below in the status chart of the receiver.

The third LED (orange), the power indicator, will glow without blinking while the receiver fixes its

position. Once a position has been fixed, the orange LED will be blinking as well.

Note:

Some PDAs have to re-open Bluetooth manager for the Bluetooth device to reconnect.

Receiver Status Chart:

eceive

7.2

Turning The Power On

7.3

Receiver Status Chart

TeleType GPS Mini-Bluetooth GPS Receiver9

Connecting Your Bluetooth Device:

Connection

Begin by selecting

Start

Bluetooth Manager

Once in the program,

select

New

Connect!

Select

Explore A Bluetooth device

see what Bluetooth device you currently

have selected.

You will see the above screen, showing

that you do not have a Bluetooth device

selected. Click on

You will see a device named TeleType.

Please click on this device. It will select

this device as your Bluetooth Browser.

TeleType GPS Mini-Bluetooth GPS Receiver11

Verifying Your Connection:

Once you have completed the setup of your Bluetooth device, you may check to see if your TeleType

GPS software is attempting to fix your position. You can do this by opening your GPS software, and

selecting

Tools

GPS Status

. Go to the

Status

tab, and click on

Find GPS Port

. Shortly, you will

see the GPS code running as in the picture above. This signifies that your Bluetooth device is

functioning properly.

Q: My Bluetooth host device is asking me for a passkey. What is it?

A: It is "6268".

Q: The TeleType software doesn't seem to be making any connections with my Bluetooth GPS

receiver. How do I make it work?

A: You will need to make sure your PDA is paired with the Bluetooth device. Follow the instructions in

the Connection section to make sure that your PDA is recognizing the Bluetooth GPS receiver

properly. If so, you will need to connect with the device by going to the Bluetooth Manager and double-

tapping on the TeleType icon.

My Bluetooth receiver seems to be connecting to satellites, but I am unable to establish a

connection between the receiver and my PDA. How can I make a connection?

A: Go to the Bluetooth Manager on your PDA. Locate the "TeleType: SPP Slave" icon and tap and

hold. A pop-up menu will appear, select Delete.

Next, locate the Reset button on your Bluetooth GPS receiver and press it. Then perform a soft reset

on your PDA.

Once your PDA has finished resetting itself, go back to the Bluetooth Manager screen and perform the

Frequently Asked Questions

typical setup and connection procedures for your Bluetooth receiver (for help with connection, please

review the Connection section).

Finally, run the TeleType GPS software. Go to Tools > GPS Status > Status, select COM 8 as your

port, 4800bps, and tap Open Port. You should see symbols scrolling in the gray box below.

10 Care and Maintenance

Your TeleType Bluetooth GPS Receiver should be treated with care and properly maintained to ensure

the best performance. Keep in mind these helpful tips when using your receiver:

Keep this and all accessories out of small children's reach.

Keep your Bluetooth GPS receiver dry. Do not expose to rain, water, or high humidity environments.

Humidity, liquids, and precipitation contain minerals that will corrode its connectors, jacks, plugs, and

electronic circuit boards.

Use only the supplied and approved accessories. Unauthorized accessories, antenna, modifications

or attachments could damage the Bluetooth GPS receiver, and may violate regulations governing

radio devices.

Use a dry, clean soft cloth to clean the unit. Do not use harsh cleaning solvents, chemicals, or strong

detergents.

Do not drop, shake, or knock the Bluetooth GPS receiver. Rough handling can break the connector,

jack, and internal electronic circuit boards. This will cause non-recoverable damages to the product.

Do not store the Bluetooth GPS receiver in dusty, dirty areas. Its moving parts, like connector pins

and clips, can be damaged.

Do not store the Bluetooth GPS receiver in hot area. High temperatures can shorten the life of

electronic devices, and melt or drape certain plastics.

Do not expose your TeleType Bluetooth GPS Receiver to temperatures higher than 1

5°F (

°C).

Do not leave your Bluetooth GPS receiver in your car under direct sunlight while not in use.

Do not store the Bluetooth GPS receiver in cold temperatures. When the unit warms up to its

normal operational temperature, moisture can aggregate inside it, severely damaging the electronic

circuit boards inside.

Do not attempt to open the Bluetooth GPS receiver. Unauthorized handling may damage the unit,

and void your warranty.

Do not paint on the Bluetooth GPS receiver. Paint can clog the connector, jack, and prevent proper

normal operation of the unit.

Frequently Aske

d Question

s 12

Teletype 2951 User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Teletype GPS Bluetooth GPS

Overview

Features

Technical Specification

Basic Specification

Acquistion Time (Averaged)

Receiver Accuracy

Limitations

Power Supply

Output & Interface

Physical Specification

Other Functions

GPS Signal Reception

Hardware Description

Device Description

LED Status

Power Switch

Understanding Your Receiver

Charging Your Battery

Turning The Power On

Receiver Status Chart

Connection

Frequently Asked Questions

10 Care and Maintenance