DTC Communications T2001S Surveillance Transmitter for Law Enforcement User Manual

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Document ID	107119
Application ID	a74YftsH3KX4OghozKx8jw==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Microsoft Word - pdf
Filesize	4.71kB (58881 bits)
Date Submitted	2000-06-28 00:00:00
Date Available	2000-08-30 00:00:00
Creation Date	2000-06-28 16:52:00
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2000-06-28 16:52:02
Document Title	Users Manual

H25T2001S
DTC COMMUNICATIONS, INC.
Operating Instructions for the T2001-S
Personal Protection Transmitter
Version 1.0
OP19200XX
T2001S Operating Instructions
page 1
©2000 DTC Communications, Inc.
H25T2001S
MODEL T-2001S TRANSMITTER
OPERATING INSTRUCTIONS
Contents
1 T-2001S Transmitter
6 Duracell AAA Batteries
1 MA-70-5 Microphone-Antenna Assy.
1 Data Sheet
1 Operating Instructions
Description
The T2001S is a synthesized VHF 1Watt audio transmitter, compliant with the NTIA
specification for Narrowband operation. Via a simple PC programming interface, as
many as 10 channels over the entire 150 to 174 MHz band may be installed in memory.
This transmitter is miniaturized and ruggedized, being designed for body worn personal
protection and evidence gathering missions. The time to half power with AAA Alkaline
batteries is greater than 4 hours. The transmission is a narrow-band FM signal, of 2.5 kHz
deviation. The T2001-S transmission is duplexed on the microphone cable; meaning the
microphone is the antenna. The audio circuitry is built around a DTC proprietary gain
control (AGC) circuit, and a high-quality Knowles microphone.
Operation
1. Controls
ON
OFF
Channel Select
– GREEN
- RED
- 10 Position Rotary
2. Programmed Features
Channel Frequency
- 1 thru 10
AGC
- ON / OFF
3. Connectors
Microphone/Antenna
Programming Connector
T2001S Operating Instructions
page 2
©2000 DTC Communications, Inc.
H25T2001S
4. Deployment
For longest transmission range, use with microphone-antenna fully extended in a
vertical orientation.
Batteries
The T-2000-S operates on six AAA batteries in series, which produce 9 VDC. A fresh set
of batteries will operate the unit for over four hours. Battery reversal guards are integral
to the battery compartment to eliminate the possibility of cell reversal.
Verify that the microphone antenna is inserted and the unit is switched off (RED DOT).
To install the batteries:
1. Lay the unit down, battery side up and slide the battery door to the right.
2. Observing polarity, install the six alkaline AAA cells.
3. Close the battery door by sliding the door to the left.
NOTE: Do not operate the transmitter without the microphone antenna attached
Transmitter Operation
1. Slide the battery door to the right and install six fresh AAA batteries, being careful to
observe polarity. Replace the door by sliding it to the left. Verify that the power
switch located on the top control surface is in the RED “off” position. Attach the
Microphone to the connector on the top of the unit. This is a push-on pull-off lockingtype connector. Connect the microphone antenna to the transmitter by simply pushing
it into the top connector.
This is a push-on push-off locking connector. The connector will rotate 360 degrees in the
transmitter without unmating. Use extreme caution when connecting or re moving the
microphone antenna. To re move slide back the sleeve, and pull straight out.
2. Set the T-2001 to the proper channel using the recessed rotary switch located on the
front cover.
3. Turn the unit “on” by sliding the switch to the GREEN position.
4. Always turn the unit off and remove used batteries when not in use. IT IS
IMPERATIVE TO DISCARD partially used batteries, as their remaining life is not
very predictable. ALWAYS start an operation with a fresh battery.
T2001S Operating Instructions
page 3
©2000 DTC Communications, Inc.
H25T2001S
Audio Circuit and Body Mounting Tips
The audio circuit is based on a DTC proprietary automatic gain control (AGC) hybrid
circuit and an external, high-sensitivity Knowles electret microphone. Excellent audio
quality is achieved in a wide variety of background noise environments.
All body-worn transmitters are susceptible to “clothing noise”. Reducing this rubbing
effect is accomplished in a variety of ways. After securing the transmitter to the body
with a secure mounting method such as an ACE bandage or custom harness:
1. Try to locate the microphone in an area that pickup will be best and rubbing noise is
least. Avoid the arms, legs, crotch or under the arms or the waist area. Front torso
mounting is ideal.
2. Always provide a small amount of strain relief on the microphone cable itself. This
reduces the noise caused by the microphone cable and element being tugged and
prevents cable damage.
3. Secure the microphone cable to the body with medical adhesive tape in at least two
spots, the final being about an inch below the element. Remember to leave a strain
relief loop!
4. Completely cover the microphone element (facing outward) with an ordinary Band
Aid™ . This provides a damped baffle for the microphone and a slick surface for
clothing to rub on, and actually does not impact audio pickup level at all.
T2001S Operating Instructions
page 4
©2000 DTC Communications, Inc.

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