DTC Communications VMS2000 S-Band FM Audio/Video Transmitter User Manual operator manual 2

DTC Communications Inc. S-Band FM Audio/Video Transmitter operator manual 2

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2 Watt
Watt
Video Transmitter
Transmitter
Operator Manual
VMS-2000 Frequency 2450-2500 MHz
DTC COMMUNICATIONS INCORPORATED
OP1920147 Rev B
How to contact DTC
Copyright Notice
Warranty
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
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.
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.
Disclaimer
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
486 Amherst Street
Nashua, New Hampshire 03063
USA
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.
FCC information
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. 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.
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
QUICK START
Make sure that the power to the transmitter is OFF.
Using a screwdriver, turn the channel selector to the correct channel number.
Connect an antenna to the ANTENNA connector on the module.
Select Hi or Lo Power using the recessed switch.
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
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.
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.
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
Programmable
Audio Sub-Carriers
Description
User programmable video channels, selectable in 250 kHz steps. Two
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.
Efficient Switching Power Supply
They generate far less heat than traditional video transmitters.
They operate significantly longer than traditional video transmitters on
the same power source.
External Power Loop Through
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.
SPECIFICATIONS
General Specifications
ITEM
SPECIFICATION
Power Input Voltage
External 11-16 Vdc
Power Consumption
7.2 Watts (not including camera)
Reverse Polarity
Protection
YES
Dimensions
3.9 x 2.7 x 0.512”
Camera Power
Same as supply voltage going
into the transmitter. Current
limited to 200 mA.
Controls
10 channel select rotary switch
Panel mounted, recessed slide
power selection switch
Connectors
2 pin Lemo: Mic 1
2 pin Lemo: Mic 2
SMA: Antenna
6 pin Multi I/O: Video in, Data in,
DC input 11-16 Vdc, camera
power, Remote ON/OFF,
Multiplexed Data out, Ground
Programmability
Chassis notes
Video: 2450-2500 MHz
(VMS-2000)
250 KHz resolution steps
Audio: User programmable from
6.0-7.5 MHz, in 10 kHz steps
Machined, solid aluminum with
rounded edges
RF Specifications
ITEM
SPECIFICATION
Operating Frequency
2450-2500 MHz, 250 KHz
resolution steps
Power output
2000 mW min. @ nominal
supply voltage, 25 Deg. C.
-3db @ 7VDC ext. -2 dB
over temp.
2.5W maximum
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)
SPECIFICATIONS
Video Specifications
Audio Specifications
ITEM
SPECIFICATION
ITEM
SPECIFICATION
Video Frequency Response
BW1.5dB = 6 Hz - 5.0 MHz
General
Mic level input (line level factory
opt.) 50-3000 Hz
Phased locked AGC on both
inputs. Sub-carrier auto sensing,
only active when microphone is
attached.
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%
Number of sub-carriers
Sub-carrier frequencies
6.0-7.5 MHz , user programmable
Sub-carrier ON/OFF Control
Subcarriers are activated when
mic is connected.
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
8 mVpp@400 Hz for 50 kHz peak
dev.
Pre-Emphasis
75 uS
Input Impedance
10k Ohm
SPECIFICATIONS
Approximate VMS-2000 Current vs. External Supply Voltage
(Camera NOT included)
700
650
600
Current Drain (mA)
550
500
450
400
350
300
250
200
11
12
13
14
15
External Supply Voltage (Vdc)
Battery Type
Part Number
Transmitter
Only
Transmitter and
Camera 12V
@120mA
10 D-Cell Alkaline Pack
4045177
9.5 hours
8 hours
16
HEATSINK INFORMATION
11
Baseplate operating temperature is
-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.
CONNECTORS
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
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.
Antenna Connector
ANTENNAS
WARNING: Refer to Appendix A of
this manual for information on the
proper use of antennas.
10
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/LO Power
Switch
Channel Select
Switch
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
Multi I/O Connector
Pin 6:
Video in
Pin 5:
RS-232 in
Pin 1: Ground
Pin 2: Ext power
input 11-16VDC
Pin 3: Camera
Power Output
NOTE: Same as supply voltage. Do
not exceed 200 mA.
11
BASIC VIDEO TRANSMITTER
CAMERA
CAMERA
POWER
STRIPPED AND
TINNED LEADS
STANDARD
POWER SOURCE
for transmitter only,
9-16 V.
OPTIONAL
BATTERY
PACKS
ANTENNA
TRANSMITTER
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:
4045130 (AA Rechargeable)
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.
12
SINGLE POWER SOURCE
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.
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.
CAMERA
STRIPPED AND
TINNED LEADS
STANDARD
LOOP THROUGH
POWER
SOURCE
FOR TX AND CAMERA
11-16 VDC
INTERNAL LOOP
CAMERA POWER
ANTENNA
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.
OPTIONAL
BATTERY
PACKS
TRANSMITTER
13
COMPONENTS
Part Number
Description
Part Number
Description
Part Number
Description
4045171-024
Video In/EXT Power/Cam. Power
cable, 24”standard.
4045189-024
Video In/EXT Power/Cam. Power
cable, 24”standard.
4045174-006
4045174-012
Antenna Cable 6” standard
Antenna Cable 12” Option
Specifications
Video In:
Ext. Power:
Specifications
Multi I/O to RCA(M) with BNC adaptor
(YELLOW)
24 AWG wire with a molex connector
and stripped and tinned leads. (RED)
Video In:
Ext. Power:
Camera Power:
14
Specifications
Multi I/O to RCA(M) with BNC adaptor
(YELLOW)
24 AWG wire with a molex connector
and stripped and tinned leads. (RED)
24 AWG wire with a molex connector
and stripped and tinned leads. (GRAY)
Connectors
SMA to TNC
COMPONENTS
Part Number
Description
Part Number
Description
Part Number
Description
7011145-012
7011145-024
7011145-036
7011145-048
7011145-072
7011145-144
7011145-360
Microphone, 12” length
Microphone, 24” length
Microphone, 36” length
Microphone, 48” length
Microphone, 6’ length
Microphone 12’ length
Microphone 30’ length
4045177
D cell battery pack with locking Molex
4045173
Programming cable
Micro-fit Connector
(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
COMPONENTS
TO CLOSE:
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
Part Number
Description
Part Number
4045130
AA (13.5 V) Rechargeable battery
pack (NiMH) with Molex Micro-fit
Connector
8590138
Terminal, Crimp, Female, micro-fit (3.0)
wire size 20-24 AWG plt gold.
Molex Part # 43030-0009
Receptacle, 2 circuit, micro-fit (3.0)
in line. Molex Part # 43645-0200
ANT-VIL
8550104
Part Number
Description
8590139
Terminal, Crimp, Male, Micro-fit (3.0)
wire size 20-24 AWG plt. gold.
Molex Part # 43031-0009
Plug, 2 circuit, Micro-fit (3.0)
In line. Molex Part # 43640-0200
8550101
16
Description
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 portable duck
antenna. It can be mounted directly to the video transmitter, or
at a right angle using the adaptor provided.
ANTENNAS
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).
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
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Linear
2 dBi
Omnidirectional
77°
50 Ohms
Groundplane Req.
Not required
Size
4.0” x 0.75” D
Weight
(101mm x 19 mm)
1 oz. (28g)
DTC Part Number
Frequency Range
7011129
1.8 to 1.9 GHz
7011130
2.0 to 2.1 GHz
7011131
2.4 to 2.5 GHz
17
ANTENNAS
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.
Specifications
Type
Patch antenna with integral
ring hybrid
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
(102mm x 102mm x 16mm)
Weight
6.4 Oz. (180 g)
DTC Part Number
Frequency Range
ANT-5-P-SMA
2.0 to 2.5 GHz with SMA
male connector
ANT-5-P-TNC
2.0 to 2.5 GHz with TNC
with male connector
ANT-5P
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
18
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
Specifications
Type
Three Hybrid Patch™
elements
Polarization
RHCP
Peak Gain
5dBic
Horizontal Beamwidth
90°
Vertical Beamwidth
90°
Nominal Impedance
50 Ohms
Groundplane Req.
Built-in
Size
6.6” H x 6.6” W
(167mm x 167 mm)
Weight
12 Oz. (34g)
DTC Part Number
Frequency Range
7011156-1
1700 to 1850 MHz
7011156-3
1990 to 2110 MHz
7011156-2
2400 to 2500 MHz
7011156-2
2200 to 2300 MHz
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
19
ANTENNAS
Specifications
Type
Log-spiral slot array, absorber
loaded
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane Req.
RHCP
9dBic
30°at 2.0 GHz
30°at 2.0 GHz
50 Ohms
Not required
Size
9” W x 9” H x 1.2” D
(227mm x 227 mm x 30 mm)
Weight
1.7 lb. (750g)
DTC Part Number
Frequency Range
4044411
1.7 to 2.7 GHz; RHCP
7011142
1.7 to 2.7 GHz; RHCP with
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.
MAF - 1 grip included
20
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
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.
Specifications
Type
Quadrifilar Helix with
Ring-hybrid feed
Polarization
Circular
Peak Gain
4dBiC at 24° above
horizon
Omnidirectional
46°
50 Ohms
Not Required
8.0” L x 1.25” dia
(203 mm x 32 mm dia)
QHA-4
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane req.
Size
WARNING: Refer to Appendix A of this manual for information on the proper use
of antennas.
Weight
3.7 oz. (105 g)
DTC Part Number
Frequency Range
QHA-4-2-R
QHA-4-2-L
QHA-4-1-R
2.4 to 2.5 GHz, RHCP
2.4 to 2.5 GHz, Lhcp
1.7 to 1.9 GHz, RHCP
QHA-4-1-L
1.7 to 1.9 GHz, LHCP
21
ANTENNAS
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.
Specifications
Type
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane req.
Dimensions
22
16-patch array with progressive
feed
RHCP or LHCP
17 dBic
16°
16°
50 Ohms
Not Required
16.0”W x 14.5”H x 0.125”D
(406 mm x 368 mm x 3.2 mm)
Weight
47 oz. (1333g)
DTC Part Number
Frequency Range
ANT-17-R
2.4 to 2.5 GHz
Ant-17r
APPENDIX A
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.
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
PROGRAMMING
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.
10
11
Click on Start, click on run.
Click on the Browse button.
Click on or find your CD drive.
Install the JAVA Runtime Environment Application first (CD provided).
Follow the install wizard screens.
Install the Universal Programming software next (floppy provided).
Click on Start, click on run.
Click on the Browse Button.
Click on your floppy drive.
Double click on the setup.
Follow the install wizard screens.
Your programming software is installed
25
PROGRAMMING
AC POWER
COM1 or COM2
Serial port of computer
Make sure that the power to the video transmitter is off.
Make sure the transmitter has an antenna installed into the antenna connector prior to programming.
Install the programming cable into the Multi I/O connector on the transmitter.
Plug the serial cable of the programming cable into
the COM1 or COM2 port of your computer.
Connect the programming cable into a power
source.
Select Start, programs, DTC communications on
your computer.
The system allows you to select device COM1 or
COM2, depending on which serial port you are
connected to.
Follow the instructions on the DTC Universal
Programming screens to begin the download process.
26
PROGRAMMING
Click on the “Tx Channel” tab in the programmer screen.
Select a channel and click on the Edit Channel button to change settings.
Enter your new frequency and settings.
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.
10
11
12
13
10
Your new settings have been installed.
11
12
27
486 Amherst Street • Nashua, New Hampshire 03063 • 603-880- 4411
www.dtccom.com

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Metadata Date                   : 2003:04:14 17:08:00Z
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