DTC Communications VMS2000 User Manual

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VMS-2000 Frequency 2450-2500 MHz

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DTC COMMUNICATIONS INCORPORATED

OP1920147 Rev B

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: [phone]
Fax: [phone]
Website: www.dtccom.com
Email: [e-mail]

486 Amherst Street
Nashua, New Hampshire 03063
USA

Copyright Notice

Copyright © 2003
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.

®

Warranty

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.

FCC information

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: [phone]

Additional instructions are available by telephone at:
[phone]

The filing fee form is returned to:

Federal Communications Commission
1270 Fairfield Road
Gettysburg, PA 17325-7245

2

TABLE OF CONTENTS

Manual Conventions

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

This product is NOT to be used in a bodyworn application.
Refer to Appendix A in this manual for instruction in the
proper use of antennas with this device. When in use a
separation distance of at least 50 cm. must be maintained
between the antenna and the body of the user or nearby
persons.

Note: This device is for occupational use only. Occupa-

tional 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.

FCC ID# H25VMS2000

Quick Start ........................................................................... 4

Overview .............................................................................. 5

Specification......................................................................... 6

Current Drain and Battery Drain .......................................... 8

Heatsink Information ............................................................ 9

Connectors......................................................................... 10

Connections ........................................................................11

Equipment Configurations ................................................. 12

Optional Accessories ........................................................ 14

Appendix A ......................................................................... 23

Programming Introduction.................................................. 24

Installing Programming Software ....................................... 25

Programming Procedure.................................................... 26

What should you expect to receive with your 2W Transmitter?

1 VMS Video Transmitter
1 Dipole antenna with right angle SMA connector
1 DTC programming software package
1 DTC programming cable
1 One Video and Power In “Y” cable

3

QUICK START

6

3

5

1 Make sure that the power to the transmitter is OFF.
2 Using a screwdriver, turn the channel selector to the correct channel number.
3 Connect an antenna to the ANTENNA connector on the module.
4 Select Hi or Lo Power using the recessed switch.
5 Connect the microphone or microphones to the MIC-1 and MIC-2 connectors

on the module.

6 Connect a video source and external power (11 -16 VDC) to the

Video/Multi-I/O connector.

7 Apply power to the transmitter

4

Warning: Do not apply power to the transmitter until an antenna has been

connected in step 3.

Warning: Refer to Appendix A of this manual for information on the proper

use of antennas.

2

NOTE: DTC has provided you with a “Y” cable (power and video) terminated

with an RCA connector and a BNC adapter for your convenience.

NOTE: The dipole antenna included is not recommended for normal use! This

antenna enables you to quickly set up your transmitter and ensure proper
operation. DTC highly recommends the use of circularly polarized antennas
for the best rejection of multi-path.

4

OVERVIEW

The VMS transmitters are small module transmitters designed for off body applications. They are part of a family of video
transmitters from DTC that provide 250 mW, 2 Watts and 5 Watts output power.

Feature Description

User programmable video channels, selectable in 250 kHz steps. Two

Programmable

Audio Sub-Carriers

Efficient Switching Power Supply

External Power Loop Through

user programmable audio sub carriers, selectable in 10 kHz steps
from 6 MHz to 7.5 MHz.

Audio sub carriers are OFF unless microphones are connected. The
transmitter automatically senses when a microphone has been
connected.
The audio sub carriers are phase locked, and will not drift into the
video signal.
Automatic Gain Control is provided on each audio input, amplifying
soft sounds.

They generate far less heat than traditional video transmitters.
They operate significantly longer than traditional video transmitters on
the same power source.

The power applied to the Multi I/O pin is automatically looped through
the unit, and available on a second pin to power a remote device,
such as a camera. If you apply 9 Volts in, you will get 9 Volts out, with
a maximum current drain of 200mA

Encryption Options

The VMS series supports Ovation Micro ViewLock II™encryption,
which adds approximately .35" to the thickness of the unit.

5

SPECIFICATIONS

General Specifications

ITEM SPECIFICATION

Power Input Voltage External 11-16 Vdc

Power Consumption 7.2 Watts (not including camera)

Reverse Po lari ty
Protection

Dimensions 3.9 x 2.7 x 0.512”

Camera Power

Controls

Co nnecto rs

Programmability

Chassis notes

YE S

Same as supply voltage going
into the tra nsmitte r. Current
limited to 200 mA.

10 channel select rotary switch
Panel mounted, recessed slide
power selection switch

2 pin Lemo: Mic 1
2 pin Lemo: Mic 2
SMA: Antenna
6 pi n Multi I/O: Vid eo in, Da ta in,
DC input 11-16 Vdc, camera
powe r, Remote ON/OFF,
Multiple xed D ata out, Ground

Video: 2450-2500 MHz
(VMS-2000)
250 KHz resolution steps
Audio: User programmable from

6.0-7.5 MHz, in 10 kHz steps

Machi ned, so li d alumi num wi th
rounded edges

RF Specifications

ITEM SPECIFICATION

Operating Frequency

Power output

Output Impedance 50 Ohms

Spurs and Harmonics output -50 dBc

Load Pull Stability 8:1 VSWR

Frequency Stability +/- 0.003%, -30 to +50°C

Modulation Sensitivity 8 MHz/V nom.

Modulation Sensitivity Variation +/- 5% across the band

Peak Carrier Deviation 4 MHz nom.

Number of channels 10 max. (user programmable)

Sub-carrier sideband level -28 dBc, +/- 2 dB

Environmental Temperature Range -30-+70°C

Humidity 90% (non-condensing)

2450-2500 MHz, 250 KHz
resolution steps

20 00 mW min. @ no mi na l
supply voltage, 25 Deg. C.

-3db @ 7VDC ext. -2 dB
over temp.

2.5W maximum

6

SPECIFICATIONS

Audio Specifications

ITEM SPECIFICATION

Mic level i nput (line level factory
opt.) 50-3000 Hz

General

Number of sub-carriers 2

Sub-carrier frequencies 6.0-7.5 MHz , user programmable

Sub-carrier ON/OFF Control

Subcarrier Frequency Stability +/- 0.003%, -30 to +70°C

Sub-Carrier Deviation 50 kHz peak

Audio S/N 45 dB min.

Frequency Response BW1.5dB = 50-3000 Hz

Total Harmonic Distortion <2%

Input Level

Pre-Emphasis 75 uS

Input Impedance 10k Ohm

Phased locked AGC on both
inputs. Sub-carrier auto se nsing,
only active when microphone is
attached.

Subcarriers are activated when
mic is connected.

8 mVpp@400 Hz for 50 kHz peak
dev.

Video Specifications

ITEM SPECIFICATION

Video Frequency Response BW1.5dB = 6 Hz - 5.0 MHz

Input Impedance 75 Ohms

Input Level 1Vp-p M

S/N 60 dB min.

Pre-Emphasis Per CCIR 405 525 line curve

Differential Gain 5%

7

SPECIFICATIONS

Approximate VMS-2000 Current vs. External Supply Voltage

700

650

600

550

500

450

400

Current Drain (mA)

350

300

250

200

11 12 13 14 15 16

Battery Type Part Number

(Camera NOT included)

External Supply Voltage (Vdc)

Transmitter
Only

Transmitter and
Camera 12V
@120mA

10 D-C ell A lkali ne Pac k 40 45 177 9.5 ho urs 8 hours

8

HEATSINK INFORMATION

Baseplate operating temperature is

11

-20° to + 80°C. Most applications will
not require a heatsink. In applications
where the baseplate temperature will
exceed +80°, add “-HO” to any
VMXX-2000 transmitter part number
for the optional heat sink at no
additional charge. The drawing on
the left clearly marks the mounting
holes for the heatsink installation
when required. To install the
heatsink.

1 Align the mounting holes of the transmitter to the

mounting holes on the heatsink.

2 Secure the heatsink with four (4) 6-32 x 1”

screws.

9

CONNECTORS

)

Microphone Connectors

Antenna Connector

WARNING: Refer to Appendix A of

this manual for information on the
proper use of antennas.

10

MATING CONNECTORS

Lemo Male Part # (FFS.01.250.DLAE31
DTC Male Part # (8570003)

Hirose Part # HR10A-7P-6P (02)
DTC Part # 954020

Standard Male SMA Connector

MICROPHONE CONNECTORS

Two connectors accommodate two microphone inputs. Each
connector has two contacts and provides power to the
microphone as well as connecting the audio signal into the
transmitter. The audio sub-carriers are activated by the
presence of the microphone. If a microphone is removed,
that sub-carrier is removed from the transmit signal. Turning
off the unused sub-carrier saves power and improves picture
quality.

ANTENNAS

A standard SMA connector is used as the antenna connector
on the VMS-2000. Refer to a list of DTC antennas available
on page 17.

TIP: You may use the VMS series transmitters with other

manufacturers antennas. Verify that they are suited for
the band you are operating in.

CONNECTIONS

CHANNEL SELECT SWITCH

Select a transmission channel by using the rotary switch
located on the front surface of the transmitter. Use a screw­driver to rotate the switch to the desired channel number.

HI/LOW OUTPUT POWER SWITCH

Select Hi or Low power by using the recessed power switch.
Switching to Hi power
is equal to 2 Watt output power. Switching to Low power is
equal to 1/4 Watt output power.

MULTI I/O CONNECTOR

The multi I/O (6-pin Multi I/O) connector is mainly used as the
video and external power input connector. It also provides
access to many transmitter functions, such as:

• Programming the device

• Video in

• Power in

• Remote on

• Camera power

Channel Select
Switch

Multi I/O Connector

Pin 6:
Video in

Pin 5:
RS-232 in

NOTE: Same as supply voltage. Do

not exceed 200 mA.

HI/LO Power
Switch

Pin 1: Ground
Pin 2: Ext power

input 11-16VDC

Pin 3: Camera
Power Output

11

BASIC VIDEO TRANSMITTER

A

CAMERA

STRIPPED AND
TINNED LEADS

OPTIONAL
BATTERY
PACKS

STANDARD

B

POWER SOURCE
for transmitter only,
9-16 V.

ANTENNA

CAMER

POWER

+

The basic VMS-2000 configuration consists of the video
transmitter, dipole antenna, and DTC cable part number
4045171-024. This cable is connected to the multi I/O port of
the transmitter.
It is configured to supply:

• The video signal to the transmitter
from the camera.

• Power to the transmitter through a
molex connector that can easily be
connected to DTC’s battery packs. It
also comes standard with stripped
and tinned leads for a customer
suppled power source. A few of the
DTC battery packs are listed below
and shown in the illustration:

A 4045130 (AA Rechargeable)

12

A

TRANSMITTER

B 4045177 ( D-Cell battery pack)

Alkaline

The cable does not supply power to the camera. The camera
is powered separately with a customer supplied power
source. DTC offers other cables that will supply power to the
camera as an option.

The VMS-2000 configuration, which uses the loop through
power source for the camera, consists of the video transmitter ,
dipole antenna, and DTC cable part number 405189-024 .
This cable is connected to the multi I/O port of the transmitter.

SINGLE POWER SOURCE

CAMERA

It is configured to supply:

• The video signal to the transmitter
from the camera.

• Power to the transmitter through a
molex connector that can be easily
connected to DTC’s battery packs.

• Power to the camera through a
molex connector that can easily be
connected to DTC’s optional
cameras.

NOTE: You will need external camera power if voltage to

the transmitter is not compatible with camera’s operat­ing voltage, and/or you need greater battery life, and/or
your camera draws more than 200 mA.

STRIPPED AND
TINNED LEADS
STANDARD

OPTIONAL
BATTERY
PACKS

LOOP THROUGH
POWER
SOURCE
FOR TX AND CAMERA
11-16 VDC

B

A

ANTENNA

INTERNAL LOOP
CAMERA POWER

TRANSMITTER

13

COMPONENTS

Part Number Description

4045171-024 Video In/EXT Power/Cam. Power

cable, 24”standard.

Specifications

Video In: Multi I/O to RCA(M) with BNC adaptor

(YELLOW)

Ext. Power: 24 AWG wire with a molex connector

and stripped and tinned leads. (RED)

14

Part Number Description

4045189-024 Video In/EXT Power/Cam. Power

cable, 24”standard.

Specifications

Video In: Multi I/O to RCA(M) with BNC adaptor

(YELLOW)

Ext. Power: 24 AWG wire with a molex connector

and stripped and tinned leads. (RED)

Camera Power: 24 AWG wire with a molex connector

and stripped and tinned leads. (GRAY)

Part Number Description

4045174-006 Antenna Cable 6” standard
4045174-012 Antenna Cable 12” Option

Specifications

Connectors SMA to TNC

COMPONENTS

Part Number Description

7011145-012 Microphone, 12” length
7011145-024 Microphone, 24” length
7011145-036 Microphone, 36” length
7011145-048 Microphone, 48” length
7011145-072 Microphone, 6’ length
7011145-144 Microphone 12’ length
7011145-360 Microphone 30’ length

Part Number Description

4045177 D cell battery pack with locking Molex

Micro-fit Connector

Part Number Description

4045173 Programming cable
(Connects from the Multi I/O connector to the DB9 connector)
This cable plugs into COM1 or COM2, serial ports of a PC. It
allows for the programming of the Video transmitter with the
DTC Programming software.

15

TO OPEN:

TO CLOSE:

COMPONENTS

PUSH CONNECTORS TOGETHER UNTIL THE
MOLEX LOCKING MECHANISM CLICKS AND LOCKS

TO OPEN:
PUSH THIS TAB DOWN TO RELEASE THE MOLEX
LOCKING MECHANISM, THEN PULL CONNECTORS
APART.

Part Number Description

4045130 AA (13.5 V) Rechargeable battery

pack (NiMH) with Molex Micro-fit
Connector

16

Part Number Description

8590138 Terminal, Crimp, Female, micro-fit (3.0)

wire size 20-24 AWG plt gold.
Molex Part # 43030-0009

8550104 Receptacle, 2 circuit, micro-fit (3.0)

in line. Molex Part # 43645-0200

Part Number Description

8590139 Terminal, Crimp, Male, Micro-fit (3.0)

wire size 20-24 AWG plt. gold.
Molex Part # 43031-0009

8550101 Plug, 2 circuit, Micro-fit (3.0)

In line. Molex Part # 43640-0200

Part Number Description

ANT-VIL Dipole Antenna 1.70-1.85 GHz with

right angle SMA adaptor

ANT-VIS Dipole Antenna 2.4-2.5 GHz with

right angle SMA adaptor
The ANT-VIL/S is a 1/2 wave coaxial dipole port able duck
antenna. It can be mounted directly to the video transmitter, or

at a right angle using the adaptor provided.

Part Number Description

7011129 ANT-2 2dB: Dipole 1.7-1.85 GHz

Must be used with SMA to TNC antenna cable
(4045174-006).

7011131 ANT-2 2dB: Dipole 2.4-2.5 GHz

Must be used with SMA to TNC antenna cable
(4045174-006).

ANTENNAS

ANT-2 is a rugged, lightweight linearly polarized dipole for use in the 2.4 to 2.5
GHz and 1.7-1.85 GHz bands. It can be mounted at the end of a cable with a
compatible connector. This antenna is ground plane independent.

ANT-2

WARNING: Refer to Appendix A of this manual for information on the proper

use of antennas.

Specifications

Type Sleeve Dipole
Polarization Linear

Peak Gain 2 dBi
Horizontal Beamwidth Omnidirectional
Vertical Beamwidth 77°
Nominal Impedance 50 Ohms

Groundplane Req. Not required
Size 4.0” x 0.75” D

(101mm x 19 mm)

Weight 1 oz. (28g)

DTC Part Number Frequency Range

701 1 1 29 1.8 to 1.9 GHz
701 1 1 30 2.0 to 2.1 GHz
701 1 1 31 2.4 to 2.5 GHz

17

ANTENNAS

Specifications

Typ e Patch antenna with integral

Polarization RHCP
Peak Gain 5dBic
Horizontal Beamwidth 90°
Vertical Beamwidth 90°
Nominal Impedance 50 Ohms
Groundplane Req. Built-in
Size 4.0” W x 4.0” H X 0.625” D

Weight 6.4 Oz. (180 g)

DTC Part Number Frequency Range

ANT-5-P-SMA 2.0 to 2.5 GHz with SMA

ANT-5-P-TNC 2.0 to 2.5 GHz with TNC

18

ring hybrid

(102mm x 102mm x 16mm)

male connector

with male connector

Part Number Description

ANT-5-PIG 5 dBi Patch Antenna Connector: SMA or TNC Male on

18" coax. “pigtail”.

DTC has developed a series of circularly polarized patch antennas for use in the

2.0 to 2.5 GHz indoor and short term outdoor installations. The ANT-5-P is a 5dbi
gain, 90 degree wide beamwidth, antenna, mounted on a 0.125 in. thick aluminum
plate. Typical uses include disguised transmitters and vehicular-mounted transmitter
antennas and in a variety of receive applications.

ANT-5P

WARNING: Refer to Appendix A of this manual for information on the proper

use of antennas.

Part Number Description

VDAR-1 Single 5 dBic “Hybrid-Patch”™ Antenna with mounting

options. Connector: TNC Female on chassis

The VDAR video antennas are designed to operate with traditional single video
receivers and multiple antenna configurations for diversity receivers. The antenna
uses the DTC Hybrid-Patch™ system to ensure pure circular polarization. This
ensures the highest possible performance in video reception, especially in
diversity systems. It is available in four different bands. Reversible and adjustable
suction cup mounts come standard for quick and easy installation on the inside or
outside of window or other hard, smooth surfaces.

VDAR-1

WARNING: Refer to Appendix A of this manual for information on the proper

use of antennas.

ANTENNAS

Specifications

Typ e Three Hybrid Patch™

elements
Polarization RHCP
Peak Gain 5dBic
Horizontal Beamwidth 90°
Vertical Beamwidth 90°
Nominal Impedance 50 Ohms
GroundplaneReq. Built-in
Size 6.6” H x 6.6” W

(167mm x 167 mm)
Weight 12 Oz. (34g)

DTC Part Number Frequency Range

701 1 156-1 1700 to 1850 MHz
701 1 156-3 1990 to 2110 MHz
701 1 156-2 2400 to 2500 MHz
701 1 156-2 2200 to 2300 MHz

19

ANTENNAS

Specifications

Typ e Log-spiral slot array, absorber
Polarization RHCP

Peak Gain 9dBic
Horizontal Beamwidth 30°at 2.0 GHz
Vertical Beamwidth 30°at 2.0 GHz
Nominal Impedance 50 Ohms
Groundplane Req. Not required
Size 9” W x 9” H x 1.2” D

Weight 1.7 lb. (750g)

DTC Part Number Frequency Range

4044411 1.7 to 2.7 GHz; RHCP
701 1 142 1.7 to 2.7 GHz; RHCP with

loaded

(227mm x 227 mm x 30 mm)

MAF - 1 grip included

Part Number Description

ANT-10 9dBic Wideband Panel Connector: TNC Female

DTC has developed a series of circularly polarized panel antennas for use in
wideband transmit and receive applications from 1.7 to 2.7 GHz. The ANT-10-R is
a very wide bandwidth, unidirectional log-spiral array. This antenna has useful
gain, with some sidelobe variation, to 4 GHz. It can be mounted to a wall or swivel
mounted with the MAF-1 grip on two surfaces, via two pairs of “1/4-20” tapped
holes located in the rear center and the bottom center of the aluminum housing.
The front of the antenna is a radome made of a polycarbonate material. The
antenna is suitable for indoor and short-term outdoor use. It must be protected for
extended outdoor use and installations since it is not waterproof.

20

WARNING: Refer to Appendix A of this manual for information on the proper

use of antennas.

Part Number Description

QHA-4 Quadrifilar Helix Antenna with Ring-Hybrid feed

Connector: TNC Female
Must be used with SMA to TNC antenna cable
(4045174-006).

The QHA family of antennas was developed to provide a compact solution for
pattern-tailored circularly polarized antennas. This rugged antenna is omnidirec­tional when the antenna is vertical. The pattern is slightly elevated to allow over­head coverage. The base of the antenna includes a special flat with #10-32
threaded hole, 0.25-in. deep for mounting. It is available in both RHCP and LHCP
versions.

QHA-4

ANTENNAS

Specifications

Typ e Quadrifilar Helix with

Polarization Circular
Peak Gain 4dBiC at 24° above

Horizontal Beamwidth Omnidirectional
Vertical Beamwidth 46°
Nominal Impedance 50 Ohms
Groundplane req. Not Required
Size 8.0” L x 1.25” dia

Weight 3.7 oz. (105 g)

DTC Part Number Frequency Range

QHA-4-2-R 2.4 to 2.5 GHz, RHCP
QHA-4-2-L 2.4 to 2.5 GHz, Lhcp
QHA-4-1-R 1.7 to 1.9 GHz, RHCP

QHA-4-1-L 1.7 to 1.9 GHz, LHCP

Ring-hybrid feed

horizon

(203 mm x 32 mm dia)

WARNING: Refer to Appendix A of this manual for information on the proper use

of antennas.

21

ANTENNAS

Specifications

Typ e 16-patch array with progressive

Polarization RHCP or LHCP
Peak Gain 17 dBic

Horizontal Beamwidth 16°
Vertical Beamwidth 16°
Nominal Impedance 50 Ohms
Groundplane req. Not Required
Dimensions 16.0”W x 14.5”H x 0.125”D

Weight 47 oz. (1333g)

DTC Part Number Frequency Range

ANT-17-R 2.4 to 2.5 GHz

feed

(406 mm x 368 mm x 3.2 mm)

Part Number Description

ANT-17-R 17 dBic Directional Patch Array

Connector TNC Male on 18” coaxial

DTC developed this very high gain RHCP antenna for the 2.4 to 2.5 GHz band. It
provides unidirectional broadside coverage. Unlike conventional Yagi antenna,
this antenna is especially suitable for wall mounting. This panel antenna is useful
in long-range receive applications, applications in high-multipath environments,
where it is impractical or impossible to mount a dish antenna.

Ant-17r

22

Using Antennas with the VMS-2000 Video Transmitter

Any suitable antenna may be used, however to insure safe operation, it is
imperative that proper spacing be maintained between the radiating surface of
the antenna and any persons body. No antenna should be placed closer than 19
inches (48 cm) to the body. To insure that proper spacing is maintained, locate
the transmitter or arrange physical barriers in such away that people are
prevented from approaching too closely.

APPENDIX A

23

PROGRAMMING

Introduction

DTC has built in a lot of flexibility in the programming options you have on the
VMS series transmitters. You can choose to use some, all or none of this
flexibility.

When you order a VMS transmitter, DTC will factory program your frequencies at
no additional charge to you. You may want to place a sticker over the rotary switch
on the chassis, so users in the field don’t attempt to change frequencies. This is
often the best path for state and local agencies with limited frequencies available
to them.

DTC will also provide you with free software and a free programming cable,
enabling you to change your video frequencies and their associated audio sub­carriers. This is ideal if you often work with other agencies, or anticipate the
equipment being used by a multi-jurisdictional task force. You can program up to
ten channel settings per unit. In general, this allows you to program most varia­tions you might encounter in the field at the depot level.

As a practical matter, your VMS transmitter’s video frequencies and audio sub­carriers will be dictated by the frequency and sub-carriers(s) of your receiver and/
or repeater. In many cases, these devices are crystal controlled or have few
channel options.

TIP: Make sure that you program your transmitter to match the frequencies

and audio sub-carriers or your receiver, and test the components as a
system prior to going into the field!

24

Installing DTC Universal Programming Software on your PC

NOTE: Uninstall any previous versions by going to Add/Remove Programs,

clicking on DTC Universal Programming, and clicking on uninstall.

1 Click on Start, click on run.
2 Click on the Browse button.
3 Click on or find your CD drive.
4 Install the JAVA Runtime Environment Application first (CD provided).
5 Follow the install wizard screens.
6 Install the Universal Programming software next (floppy provided).
7 Click on Start, click on run.
8 Click on the Browse Button.
9 Click on your floppy drive.
10 Double click on the setup.
11 Follow the install wizard screens.

Your programming software is installed

PROGRAMMING

25

PROGRAMMING

5

AC POWER

4

COM1 or COM2
Serial port of computer

3

2

1 Make sure that the power to the video transmitter is off.
2 Make sure the transmitter has an antenna installed into the antenna connec-

tor prior to programming.

3 Install the programming cable into the Multi I/O connector on the transmitter.
4 Plug the serial cable of the programming cable into

the COM1 or COM2 port of your computer.

5 Connect the programming cable into a power

source.

6 Select Start, programs, DTC communications on

your computer.

7 The system allows you to select device COM1 or

COM2, depending on which serial port you are
connected to.

8 Follow the instructions on the DTC Universal

Programming screens to begin the download process.

6

7

8

26

PROGRAMMING

9 Click on the “Tx Channel” tab in the programmer screen.
10 Select a channel and click on the Edit Channel button to change settings.
11 Enter your new frequency and settings.
12 To change any of the MIC-2 or MIC-1 settings, click on the settings provided,

then click OK.

13 Click on the Upload button to upload your new settings to the transmitter.

Your new settings have been installed.

9

11

12

13

10

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