DTC TAC COM 2005 Manuale utente
User Programmable
8 Channel RX & TX
Tactical Repeater
NTIA Compliant
DTC COMMUNICATIONS, INCORPORATED
TAC COM 2005
DTC COMMUNICATIONS, INC.
2PN OP1920328 REV 4
copyright notice
Copyright © 2005 - 2006
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.
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: [email protected]
486 Amherst Street
Nashua, New Hampshire 03063
trademarks
Trademarks of DTC Communications, Inc.
include:
• DTCTM
• PalladiumTM
• ArmorNetTM
• SplitPIXTM
• MiniPIXTM
• DynaViewTM
Other product names used in this manual are
the properties of their respective owners.
FCC information
The following information is provided as a
service to our law enforcement customers who
require a Part 90 station license for video
surveillance operations.
You will need to provide two documents:
• Form 600 (the application form)
• Form 159 (the filing fee form)
Forms can be obtained from the FCC on their
website at:
www.fcc.gov
You can also contact the FCC using their FAX
back service at: (888) 418-3676 Additional
instructions are available by telephone at:
(888) 225-5322
The filing fee form is returned to:
Federal Communications Commission
1270 Fairfield Road
Gettysburg, PA 17325-7245
DTC COMMUNICATIONS, INC. 3
manual conventions
Quick Start .............................................................................. 4
Description .............................................................................. 5
Operation .............................................................................. 7
Components ........................................................................... 8-9
Troubleshooting ................................................................... 10-11
Specifications ............................................................................ 12
Accessories ............................................................................ 13
Warranty ............................................................................ 14
Contact Us ............................................................................ 15
TABLE OF CONTENTS
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.
RF EXPOSURE STATEMENT
A separation distance of at least 20 cm must be
maintained between the antenna and the body of
the user or nearby persons and must not be
co-located or operating in conjunction with any
other antenna or transmitter..
NOTE: This device is for occupational use
only. Occupational users are those persons
who are exposed as a consequence of their
employment, provided these persons are fully
aware of and exercise control over their
exposure.
WARNING: In order to comply with FCC rule
47 CFR 1.1310 regarding general population
radiation exposure, deployment of this device
must be such that unaware bystanders
maintain a minimum separation from the
antenna of 42 cm.
DTC COMMUNICATIONS, INC.
4
QUICK START
Complete the following steps to
start using your TAC COM 2005:
11
11
1Set Receiver Channel to match
your body wire transmitter
frequency.
22
22
2Set Transmitter Channel to
match your listening post
receiver’s frequency.
33
33
3Connect antenna to BNC
connector on rear panel.
44
44
4Locate antenna in high, open
position (never in the trunk
of a car).
55
55
5Use the internal rechargeable
battery, or apply 11 to 16 VDC
power to the TAC COM 2005
using the automotive power cable
provided (or optional DC supply).
66
66
6Verify system by turning ON your
body wire transmitter,
TAC COM 2005, and receiver.
Listen for audio on the receiver.
LED: GREEN = STANDBY/RECEIVE
RED = TX ON
11
11
1
22
22
2
55
55
5
NOTE: Always fully charge
the internal battery before a
mission.
Audio Out Antenna Power In
66
66
6
Rear Panel Connectors Antenna
33
33
3
DTC COMMUNICATIONS, INC. 5
Repeaters are devices comprised of both receiver and transmitter
sections, which are used to extend the range of a transmitted signal.
It does this by receiving a weak signal on one channel and retransmitting
the signal (at the same time) on a second channel, at higher power.
The TAC COM 2005 has special features that extend its capabilities for
surveillance operations. These include a phono output for direct
connection from the repeater to a recorder, an optional HOT MIC for full
time audio signal transmissions, and an optional scrambler to encrypt any
of the TAC COM transmitted signals. In addition to receiver and transmit-
ter options, the TAC COM is capable of connecting with an array of
directional and covert antennas through the use of its standard BNC
antenna connector.
WARNING: Never place the repeater with antenna attached in a
closed trunk of a car. You will degrade your range to the extent that
the repeater is useless.
TIP: DTC recommends the use of highly efficient antennas, such as
the ANT-3 Cellular disguise antenna.
DESCRIPTION
DUPLEXER
TAC COM 2005 BASE STATIO
N
BODY WORN
TRANSMITTER
RX TX
RX
TX
DTC COMMUNICATIONS, INC.
6
DESCRIPTION
The TAC COM 2005 is a portable 2 Watt VHF FM tactical repeater capable
of receiving and transmitting both 12.5 kHz and standard wideband (+25
kHz signals).
Both the receive and transmit frequencies are user-programmable within a
2 MHz range and can be set to any of eight switch selected channels for
both RX and TX. (Programming Kit is optional.) Minimum separation
between receive and transmission frequencies is 3.5 MHz. Programming
cable and software are available as an option. The 2 MHz range and factory
preset frequencies are listed on a label on your TAC COM 2005.
The TAC COM 2005 repeater is housed in a rugged, water resistant,
Pelican case and is designed to operate over a wide temperature and
humidity range. Both transmitter and receiver sections are frequency
synthesized and both are locked to highly stable temperature
compensated crystal oscillators (TCXO’s). The repeater will transmit
continuously for approximately 3 hours on one full charge of the internal
battery.
NOTE: Minimum 3.5 MHz separation between receive and transmit
channels is required. Wider separation between transmit and receive
channels will provide improved performance.
DTC COMMUNICATIONS, INC. 7
NOTE: Do not adjust the
squelch unless you are
experiencing a constant
transmit condition. If that
happens, temporarily switch
to another receive channel.
If the transmit condition
stops, you may be receiving a
third-party transmission on
the original channel.
NOTE: using a wideband
transmitter with a
narrowband receiver setting
will cause some distortion and
loss of some audio.
The typical mission of the repeater is to extend the range of a low power
FM transmitter such as a bodywire. The repeater should remain in
standby mode (not transmitting) until the transmitter is activated. When
the transmitter is keyed ON and in range of the repeater, the repeater will
retransmit the signal on another selected channel. Typically, the repeater
is powered from its own internal rechargeable battery, or via another DC
source such as automotive power. The performance of the TAC COM 2005
is highly dependent on the proper location and
orientation of the antenna.
Is the transmitter that you are using narrowband (12.5 kHz) or is it a
wideband (25 kHz) unit? It is always best to select the bandwidth which
matches the transmitter. If this is unknown, the repeater can receive
either signal in the wideband mode. The TAC COM 2005
bandwidth can be set with the optional software.
The repeater’s receiver channel should be set to the transmitter’s
(bodywire) frequency using the Receiver Channel control. The repeater’s
transmit channel also needs to be set to a frequency covered by the
listening post receiver. This is accomplished with the Transmitter
Channel control. The squelch can be set with the control on the main
panel but it normally should not require adjustment.
If you experience the squelch breaking when the bodywire is off, try
another transmitter channel, which is free of interference. Squelch param-
eters can be modified with the Squelch control.
OPERATION
NOTE: To provide easy
narrowband/wideband
selection capability, program
the same frequency on
different channels using the
wide setting on one and the
narrow setting on the other.
DTC COMMUNICATIONS, INC.
8
COMPONENTS
Channel Select
TRANSMITTER - This rotary switch selects the channel for the repeater’s
transmitter section. The frequencies are programmed in software.
RECEIVER - This rotary switch selects the channel for the repeater’s
receiver section. The frequencies are programmed in software.
Original factory settings are provided on a label with your equipment
Master Power/ Voltage Meter
MASTER POWER SWITCH - This rocker switch turns ON/OFF the
repeater’s power.
POWER LED - This indicator turns ON when the power is ON. The LED
changes to indicate the following:
VOLTAGE METER - This device measures the voltage present at the
internal battery. 12 Volts is nominal. Low voltage (< 11 VDC) indicates the
battery should be recharged.
Optional Scrambling
SCRAMBLE ON/OFF SWITCH - If your TAC COM 2005 is equipped with
the optional Scrambler feature, a Scramble ON/OFF switch is located on
the main panel. Generally, it is recommended that you test the system
first with the Scramble feature turned OFF. Once the system has tested
successfully, turn the Scramble switch ON. The listening post receiver
must also be equipped with a descrambler.
Green Standby/Receive
Red Transmitter ON
Flickering Weak Signal Receiver
12.6
DTC COMMUNICATIONS, INC. 9
COMPONENTS
Squelch
Adjustment is not usually needed. If needed, make sure the bodywire
transmitter is OFF. Loosen the locknut and use a small screwdriver to turn
the Squelch control on the TAC COM 2005 counterclockwise until the
Master Power LED turns RED. Then turn the adjustment slightly clockwise
until the LED turns GREEN. Finally test the squelch setting by transmit-
ting with the bodywire and observing the listening post receiver, to make
sure it transmits ON/OFF properly. Retighten the locknut.
RF Programming/Hot Mic
TRANSMITTER & RECEIVER/HOT MIC - This DB-15 connector attaches to
an optional serial cable to allow for programming the repeater’s transmitter
and receiver sections. (Programming is optional.) The same connector is
used to connect to the optional Hot Mic.
Antenna Connector
BNC - This RF connector allows for RF transmission.
The device comes with a mag mount antenna, however
optional 50 Ohm external VHF gain antennas can
improve performance.
Line Audio Out
RCA - This audio connector allows for connection
to a recorder or other line-level audio device.
Power/Charging Input
XLR - This connector attaches to the power cable to
allow for automotive auxiliary power. This is also
used with the external AC charger provided. Antenna
Connector
Power/Charger
Input
Audio
Line Out
DTC COMMUNICATIONS, INC.
10
TROUBLESHOOTING
Problem Solution
Unit will not turn ON. Check internal battery voltage as read on the panel meter. If less than 11 VDC, recharge the
battery.
Use an external power source 11 to 16 VDC.
Poor local Audio at Audio out jack. Audio out jack is at line level. It will not drive an external speaker without use of an external
amplifier.
Check battery and antenna on body wire transmitter.
Ensure that body wire transmit frequency and TAC COM 2005 receive frequency are the same.
Ensure that the body wire transmitter is in range of repeater.
Ensure that the TAC COM 2005 antenna is positioned vertically, or an external antenna is in use.
Ensure that an antenna is attached to the antenna jack.
Ensure that the squelch adjust has been performed correctly.
Ensure that the TAC COM 2005 receiver is programmed correctly for wide/narrow bandwidth
operation. This bandwidth must match that of the body-wire transmitter for optimum performance.
Good local audio at the Audio out jack, but
poor or no audio at listening post. Ensure the TAC COM 2005 transmit and listening post receive frequencies are the same.
Ensure that the scramble feature is deactivated.
Check the listening post's receiver program to ensure that any subaudible coding (i.e. PL code)
matches the transmitter, or is turned OFF.
Ensure a clear, line-of-sight path with no buildings or mountains between listening post and
repeater.
Ensure that there is no interference near the listening post. Try changing frequencies.
Indice
