DTC T-2350 User Manual

DTC COMMUNICATIONS INCORPORATED Draft

T-2350-1Watt Audio Transmitter

PrPr

oject 25 Digital & Analogoject 25 Digital & Analog

oject 25 Digital & Analog

Users ManualUsers Manual

Users Manual

How to contact DTC

For operator and troubleshooting information, customers are encouraged to refer to the details in this manual. For additional clarification or instruction, or to order parts, contact DTC. Customer Service is available Monday through Friday between the hours of 9:00 AM and 5:00 PM EST at: Tel: 603-880-4411 Fax: 603-880-6965 Website: www.dtccom.com Email: info@dtccom.com

486 Amherst Street Nashua, New Hampshire 03063 USA

Copyright © 2004 DTC Communications, Inc. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, including but not limited to electronic, magnetic, mechanical, optical, chemical, manual or otherwise, without the prior written permission of DTC Communications, Inc.

Disclaimer

The information in the document is subject to change without notice. DTC makes no representations or warranties with respect to the contents hereof, and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. DTC reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of DTC to notify any person of such revision or changes.

Trademarks

Trademarks of DTC Communications, Inc. include:

• DTC

• MiniPIX

• DynaPIX

Other product names used in this manual are the properties of their respective owners.

W arranty

DTC warrants its manufactured components against defects in material and workmanship for a period of two (2) years, commencing on the date of original purchase. Products manufactured by others that are approved for use with DTC equipment are warranted for the manufacturer’s warranty period, commencing from the date of shipment from DTC.

Intellectual Property Rights Notice

Digital Voice Systems, Inc. (DVSI) claims certain rights, including patent rights under US Patents #5,870,405, #5,826,222, #5,754,974, #5,701,390, #5,715,365, #5,649,050, #5,630,011, #5,581,656, #5,517,511, #5,491,772, #5,247,579, #5,226,084, #5,195,166, and under other US and foreign patents patents and patents pending, in IMBE Vocoder technology and software embedded in this product. Any use of this technology or software requires a separate written license grant from DVSI.

IMBE is a registered trademark of Digital Voice Systems, Inc.

NOTE Describes special issues you should be aware

of while using a particular function.

WARNING Calls out situations in which equipment

could be damaged or a process could be incorrectly implemented, but in which operator safety is not a factor.

TIP Describes application hints.

Manual Conventions

Table of Contents

Overview............................................................................. 4

Connections ...................................................................... 5

Quick Start Option 1 .......................................................... 6

Quick Start Option 2 .......................................................... 7

miniSD

Card ................................................................. 8-9

Recording to a miniSD

Card ......................................... 10

Trouble Shooting ...............................................................11

Tips ................................................................................... 12

Specifications .................................................................. 13

Programming ..............................................................14-16

Progr amming Options ................................................ 1 7-20

Encryption ......................................................................... 21

Accessories Antennas..................................................... 22

Warranty............................................................................ 23

The T-2350 is a synthesized VHF, digital and analog audio transmitter with a software selectable power output of 1 Watt. The T-2350 has an optional removable Mini SDTM Card that can record approximately 1 minute of audio in WAV file format per MB of storage.

The T-2350 has 10 programmable channels. It is designed for body worn personal protection and evidence gathering missions. Its miniature size and rugged design insures safe concealment and long lasting performance. The time to half power with fresh AAA Alkaline batteries is 5 hours. The transmission is programmable for digital P25 clear, digital P25 encrypted, analog narrowband, or analog wideband operation. The T-2350 transmission is either duplexed on the mic/antenna cable (meaning the microphone is the antenna) or transmitted on a stand-alone noodle antenna, in which case the internal microphone or remote microphone must be used.

Concerned with the rapid evolution of digital communication technologies and a need for interoperability, the Association of Public Communications safety Officials (APCO) developed an open architecture, digital standard for public safety and government communications systems. Products compliant with APCO Project 25 standard are interoperable, regardless of the manufacturer. The National Telecommunications and Information Administration (NTIA) has adopted the APCO Project 25 interoperability standard, also known as TIA/EIA-

102. The T-2350 is compliant with this standard.

Overview

Front of Transmitter

Channel Select Switch

Internal Batteries

Back of Transmitter

miniSD

Card

Connections

ANTENNA (Female Lemo Connector)

This connector accepts both the mic/antenna and the noodle antenna.

MULTI-PIN CONNECT OR (Male multi-pin connector)

This connector mates with an external microphone and is used in conjunction with the noodle antenna. This connector also mates with the programming cable.

STA TUS LED

Once power is applied (after approximately 3 seconds), the Status LED will turn on (green), which indicates a successful self-test. The LED will turn off after a few seconds, and remain off or flash green at 1 second intervals. (See programming section)

ON/OFF SWITCH (Slide Switch: Green dot is ON, Red dot is OFF)

The ON/OFF switch controls the power to the transmitter. The power is supplied through the internal battery compartment, which holds six AAA batteries. Sliding the switch to the green dot turns the power ON. Sliding the switch to the red dot turns the power OFF.

CHANNEL SELECT SWITCH (Rotary Switch)

The channel select switch allows you to change transmit channels and is located on the front of the transmitter. It is a rotary switch which requires the use of the supplied screwdriver to turn the switching mechanism. Select a transmit

channel number by turning the rotary switch.

On / Off Switch

Multi Pin Connector

Top View

Internal Microphone

Status LED

Antenna Connector

NOTE: When Cycling power on the

unit, power switch must be left in the off postion for at least 2 seconds before turning it back on.

NOTE: When using the noodle

antenna, the unit must be programmed to use the alternate microphone. If no external microphone is connected, the unit will automatically use the internal microphone.

QUICK START Option1

Using The Antenna/Mic AssemblyUsing The Antenna/Mic Assembly

Using The Antenna/Mic Assembly

NOTE: The channel being used must be programmed

to use the antenna/mic

1 Install the antenna/mic into the antenna connector

on the transmitter.

NOTE: This is a push-on, push off locking connector.

The connector will rotate 360° in the transmitter without disconnecting. Use extreme caution when connecting or removing the mic/antenna.(See illustration on page 12.)

2 Ensure that the power switch on the transmitter is set to OFF. (Red dot is OFF).

3 Slide the battery door to the right and install six, fresh

AAA batteries, being careful to observe proper polarity. Slide the battery door to the left to close the battery compartment.

4 Using a small screwdriver, turn the recessed rotary

switch located on the front cover, to the desired channel.

5 Turn the unit on by sliding the switch to the ON

position. (Green dot is ON.)

NOTE: Once power is applied (after approximately 3

seconds), the Status LED will turn on (green), which indicates a successful self-test. The LED will turn off after a few seconds.

NOTE: Do not operate

the transmitter without an antenna installed.

QUICK START Option 2

Using A Separate MicrUsing A Separate Micr

Using A Separate Micr

ophone with theophone with the

ophone with the

Noodle AntennaNoodle Antenna

Noodle Antenna

NOTE: The channel being used must be programmed

to use the internal mic.

1 Install the 36” remote microphone into the auxiliary (multi-pin) connector on the transmitter

2 Install the noodle antenna into the antenna connector

on the transmitter. Adjust length to center of operating frequencies. (See example on Page 22)

NOTE: This is a push-on, push off locking connector.

The connector will rotate 360° in the transmitter without disconnecting. Use extreme caution when connecting or removing the noodle antenna.(See illustration on page 12.)

3 Ensure that the power switch on the transmitter is set to OFF. (Red dot is OFF).

4 Slide the battery door to the right and install six, fresh

AAA batteries, being careful to observe proper polarity. Slide the battery door to the left to close the battery compartment.

5 Using a small screwdriver, turn the recessed rotary

switch located on the front cover to the desired channel.

6 Turn the unit on by sliding the switch to the ON position.(Green dot is ON.)

NOTE: Do not operate

the transmitter without an antenna installed.

miniSD

Card

miniSD

Card Adapter (to be used with Card Reader)

miniSDTM Card

miniSD

Card

miniSDTM Card

The T-2350 uses an industry-standard miniSD™ card to make audio recordings. A 512 MB card, an SD to miniSD adapter, and an SD card reader are provided with a new T-2350. The audio is recorded in a Windows PCM waveform format (.wav file). Should the need to replace the card arise, they can be purchased at most major retailers in various densities from 32 Mb to 512 Mb. Higher densities may be available in the future. As an example, a 32Mb card will provide approximatley 30 minutes of recording time, 64Mb wil provide about 60 minutes, etc. The 512 Mb card included with the transmitter will provide well over 8 hours of recording time. Generally speaking, 1 MB of memory will provide about 1 minute of recording.

Every new miniSD™ must be properly formatted before it can be used. Formatting is a simple process that can be done on almost any Microsoft Windows equipped PC, Laptop, Notebook, and some hand-held PCs. Typically, this will only need to be done once on each card.

Installing miniSD

Card

The miniSD™ card slot is accessed by sliding the side panel down (Figure 2). The Card is inserted with the gold tabs facing the same side as the Channel Switch. When installed, a red LED will be illuminated indicating that the card should not be removed due to file management activity. Wait until the red LED

is OFF before removing the card by gently pushing in until it releases.

SD Card Reader

NOTE: Never insert or remove the card while power is ON.

+ 16 hidden pages

DTC T-2350 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual