DTC Communications VXS250 Video Transmitter User Manual FCC Bodyworn

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Document ID	298068
Application ID	71P+9wNZmFgXM+sfQvoigQ==
Document Description	Revised Manual
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Document Type	User Manual
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Date Submitted	2003-01-23 00:00:00
Date Available	2002-10-02 00:00:00
Creation Date	2002-12-12 08:55:43
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Document Lastmod	2002-12-12 08:57:01
Document Title	FCC Bodyworn
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Document Author:	donlav

1/4 W
att, Body W
orn
Watt,
Worn
Video T
ransmitter
Transmitter
Manual
VBS2-250 Frequency 2200 - 2300 MHz
VBS-250 Frequency 2400-2500 MHz
VBL-250 Frequency 1700-1850 MHz
DTC COMMUNICATIONS INCORPORATED
PN OP1920256 REV A
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 © 2002
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.
486 Amherst Street
Nashua, New Hampshire 03063
USA
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.
DTC COMMUNICATIONS, INC.
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 using the 2450 to 2483.5
MHz band.
You will need to provide:
• Form 600 (the application 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
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
TABLE OF CONTENTS
Quick Start ........................................................................... 4
Overview .............................................................................. 5
Features ............................................................................... 6
Specifications ....................................................................... 7
Battery Drain ........................................................................ 9
Connectors ......................................................................... 10
Connections ........................................................................ 11
Equipment Configurations ................................................. 12
Optional Accessories ........................................................ 16
Programming ...................................................................... 26
Appendix A ......................................................................... 30
When used as directed, the maximum SAR of this device is
2.7 W/kg, which meets the limits set forth by the FCC. Refer
to Appendix A in this manual for instruction in the proper use
of antennas with this device. When used in non-portable
aplications, a separation distance of at least 20 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 user 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# H25VXS250
DTC COMMUNICATIONS, INC.
QUICK START GUIDE
Make sure that the ON/OFF switch is set to OFF. (Red dot is OFF).
Install 4 “AA” batteries in the internal battery compartment of the module.
(Lithium batteries are recommended)
Using a screwdriver, turn the channel selector to the correct transmission
channel number.
Connect an antenna to the ANTENNA connector on the module.
Connect the microphone or microphones to the MIC-1 and MIC-2 connectors
on the module.
Connect a video source to the Video/Multi I/O connector.
Slide the power switch to the ON position (Green dot is ON) to apply power to
the transmitter.
Note: While installing the batteries, observe proper polarity as printed in the
battery compartment. Reverse polarity protection is a built-in design feature
of the transmitter. If a battery is installed backwards, this feature prevents the
transmitter from powering up, without damaging the transmitter or battery.
Warning: Do not apply power to the transmitter until an antenna has been
connected in step 4.
DTC COMMUNICATIONS, INC.
Warning: Refer to Appendix A of this manual for information on the proper
use of antennas.
OVERVIEW
What should you expect to receive with your 250mW
Transmitter. Some of these components may be
optional.
1 VBS/VBL Video Transmitter
1 Dipole antenna with right angle SMA connector
1 One Video, Power in, and camera power cable
1 DTC programming software package
1 DTC programming cable
8 Batteries
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.
NOTE: DTC has provided you with a “Y” cable (power and video)
terminated with an RCA connector and a BNC adapter for your
convenience.)
The VBL/VBS series video transmitters from DTC represent the first true “video body wires” available. DTC has developed a
fully user programmable video transmitter and mated it with an integral AA battery pack. This dramatically simplifies wiring,
lowers the risk of detection, and increases the chances of operational success.
For best results, DTC recommends the use of its VidiWIRE on body dual patch antenna system with phase matching module,
and a DTC diversity receiver.
Users should also consider using the VBL/VBS series transmitters for rapid deployment drop cameras. Packaging the
transmitters with miniature board cameras is exceptionally easy, and in the case of 5 volt cameras, power may be provided to
the camera directly from the VBL/VBS transmitter’s internal battery pack.
This product in only available for sale to legitimate state, local, federal and friendly foreign government agencies.
DTC COMMUNICATIONS, INC.
FEATURES
Feature
Remote Switching Capability
External Power Loop Through
Description
• You may turn the device ON remotely, by attaching a switch to one
of the pins on the Multi I/O connector. DTC provides hard-wired and wireless
switches for this application.
• 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 -.05 (8.5) Volts out.
Note: If internal batteries are used at the same time external power is used, the
batteries will continue to supply some of the transmitter’s’ power, resulting in
continued dischare of the batteries.
WARNING: Make sure your camera will operate on the voltage being supplied
to the transmitter.
Programmable
Audio
Efficient Switching Power Supply
Camera Power Available thromugh
Multi I/O Connector
DTC COMMUNICATIONS, INC.
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 attached. The
transmitter automatically senses when a microphone has been attached.
• 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 a traditional video transmitters.
• They operate significantly longer than traditional video transmitters on the
same power source.
• When powering the device using the internal battery pack, regulated 5 VDC is
available on the multi I/O connector, limited to 200 mA current drain.
Specifications for the body worn VBS/VBL-250
Power Supply
Power Consumption
Battery life
Reverse polarity
protection
Dimensions
Camera Power
Controls
Connectors
Programmability
Chassis notes
General
Number of sub-carriers
Sub-carriers frequencies
SPECIFICATIONS
Internal batteries 4 “AA” batteries or external 9-16 VDC.
2.5 Watts (not including camera)
3 hours - Minimum AA batteries
Yes
2.5 x 4.5 x 0.675”
Using external power input:
Same as supply voltage -0.5 Vdc switched (200 mA max)
Using internal batteries:
5 VDC @ 175 mA, switched (internal regulator)
10 channel select rotary switch
Panel mounted, slide ON/OFF switch
2 pin Lemo: Mic 1
2 pin Lemo: Mic 2
SMA: Antenna
6 pin Multi I/O: Video in, Data in, DC input 9 -16 VDC,
camera power, Remote ON/OFF, Multiplexed Data out,
Ground
Video: 2400 - 2500 MHz (VBS-250)
1700 - 1850 MHz (VBL-250)
250 KHz resolution steps
Audio: User programmable from 6.0 - 7.5 MHz, in
10 kHz steps
Machined solid aluminum with rounded edges.
Audio
Mic level input (line level factory opt.) 50 - 3000 Hz
Phased locked with AGC on both inputs. Sub-carrier auto
sensing, only active when microphone is attached.
6.0 - 7.5 MHz , user programmable
FRONT PATCH
ANTENNA
BACK PATCH
ANTENNA
MICROPHONES
CAMERA
SPLITTER
TRANSMITTER
Four lithium “AA” batteries
DTC COMMUNICATIONS, INC.
SPECIFICATIONS
Sub-carrier ON/OFF control
Subcarrier frequency stability
Sub-Carrier Deviation
Audio S/N
Frequency Response
Total Harmonic Distortion
Input Level
Pre-Emphasis
Input Impedance
Subcarriers are activated when mic is connected.
+/- 0.003%, -30°C to +70°C
50 kHz peak
45 dB min.
BW1.5dB = 50 - 3000 Hz
<2%
8 mVpp @ 400 Hz for 50 kHz peak dev.
75 uS
10 k Ohm
Video
Video Frequency
Response
Input Impedance
Input Level
S/N
Pre-Emphasis
Differential Gain
Operating Frequency
Power output
DTC COMMUNICATIONS, INC.
BW1.5dB = 6 Hz - 5.0 MHz
75 Ohms
1Vp-p Max.
60 dB min.
Per CCIR 405 525 line curve
5%
RF
1700 - 1850 MHz, 250 KHz resolution steps
2400 - 2500 MHz, 250 KHz resolution steps
250 mW min. @ nominal supply voltage, 25 Deg. C.
-3 dB @ 3.6 VDC int
-2 dB over temp.
Output Impedance
Spurs and Harmonics output
50 Ohms
-50 dBc
Load Pull Stability
Frequency Stability
8:1 VSWR
+/- 0.003%, -30°C to +50°C
SPECIFICATIONS
Modulation Sensitivity
Modulation Sensitivity
Variation
Peak Carrier Deviation
Number of channels
Sub-carrier sideband level
Environmental
Temperature Range
Humidity
8 MHz/V nom.
Four lithium batteries
+/- 5% across the band
4 MHz nom.
10 max. (user programmable)
-28 dBc, +/- 2 dB
-30°C - +70°C
90% (non-condensing)
Estimated Battery Life:
Transmitter & Camera
Internal Battery Type
4 AA Alkaline
(Internal)
4 AA Lithium
(Internal)
Part Number
8030001
Transmitter Only
4 hours
Camera 5V@200mA
Not recommended
8030030
6 hours
4 hours
External Battery Type
9 AA Alkaline Pack
(External)
9 AA Lithium
(External)
9 AA NiMH
Rechargeable
(External)
10 D Cell Battery
pack Alkaline
Part Number
4045131
Transmitter Only
6 hours
Camera 12V@150mA
4 hours
4045132
9 hours
6 hours
4045130
7 hours
4 hours
4045177
55 hours
25 hours
DTC COMMUNICATIONS, INC.
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
10
DTC COMMUNICATIONS, INC.
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 both the
VBS/VBL-250.
CONNECTIONS
Antenna Connector
TIP: You may use the VBS/VBL series transmitters with other manufacturers
antennas. Verify that they are suited for the band you are operating in.
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
CHASSIS MOUNTED POWER ON/OFF SWITCH
A slide switch is provided for local control of power ON and OFF. Green dot is
ON, Red dot is OFF.
On/OFF
Switch
Channel
Select
NOTE: REMOTE ON overrides the chassis mounted OFF switch. (i.e. When
the chassis mounted power switch is set to OFF, REMOTE ON can be used
to turn the transmitter ON.)
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.
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:
Pin 6: Video in
•
Programming the device
Pin 1: Ground
•
Video in
Pin 5: RS-232 in
Pin 2: Ext power
•
Power in
input 9-16VDC
Pin 4: Remote on,
•
Remote on
switched to ground
•
Camera power
Pin 3: Camera
multiplexed RS-232 out
Power Output
Multi I/O Connector
NOTE: When using the external
power: camera power = external
power -0.5 Vdc.
When using internal batteries: camera
power = 5 Vdc.
DTC COMMUNICATIONS, INC.
11
EXTERNAL CAMERA POWER
FRONT PATCH
ANTENNA
BACK PATCH
ANTENNA
The basic VBS/VBL-250 configuration
consists of the video transmitter, Vidi-Wire
Antenna, and DTC cable part number
4045170-024. This cable is connected to the
multi I/O port of the transmitter, and is
configured to supply:
•
EXTERNAL
CAMERA POWER
CAMERA
The video signal from the camera to the
transmitter.
SPLITTER
MICROPHONE
MICROPHONE
Cable 4045170-024
TRANSMITTER
12
DTC COMMUNICATIONS, INC.
The basic VBS/VBL-250 configuration consists
of the video transmitter, Vidi-Wire Antenna, and
DTC cable part number 4045194-024. This
cable is connected to the multi I/O port of the
transmitter, and is configured to supply:
•
•
The video signal from the camera to the
transmitter.
Power (5 Vdc) to the camera through the
internal battery pack.
This configuration allows the internal battery
pack to supply the power to the camera and
the transmitter. It does not depend on supplemental battery packs to supply power to any of
its components.
INTERNAL CAMERA POWER
FRONT PATCH
ANTENNA
BACK PATCH
ANTENNA
MICROPHONES
CAMERA
SPLITTER
TRANSMITTER
Cable 4045194-024
DTC COMMUNICATIONS, INC.
13
ADDING EXTERNAL POWER
Cable 4045189-024
MICROPHONES
CAMERA
STRIPPED AND
TINNED LEADS
STANDARD
POWER SOURCE
for transmitter and
camera via loop
through 9-16 V.
The VMS/VML-250 configuration, which uses
the loop through power source for the camera,
consists of the video transmitter and DTC cable
part number 4045189-024 . 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 the internal
power loop through.
This configuration allows for additonal battery
capacity from connnecting DTC’s supplemental
battery packs to the body worn transmitter. The
cable 4045189-024 allows for this configuration.
DTC Optional Battery Packs
A 4045131 (AA non-rechargeable, 13.5 V)
ANTENNA
4045177( D-Cell battery pack, 15 V)
Alkaline
4045130 (AA rechargeable, 13.5 V)
MiMH
Note: Optional battery packs are not to be
used in body worn applications. Use only
internal batteries when the transmitter is
to be worn on the body.
OPTIONAL
BATTERY
PACKS
TRANSMITTER
14
DTC COMMUNICATIONS, INC.
This configuration consists of the video transmitter, Vidi-Wire antenna, and DTC cable part
number 4045192-024. This cable is connected to
the multi/IO port of the transmitter, and is configured to supply:
•
The video signal from the camera to the
transmitter.
•
Power (5 V) to the camera through the
internal battery pack.
•
Remote on function through a hard wired
switch or remote Key FOB transmitter. This
remote on function overrides the OFF switch
located on the transmitter chassis.
ADDING REMOTE ON FUNCTION
Cable 4045192-024
FRONT PATCH
ANTENNA
BACK PATCH
ANTENNA
MICROPHONES
CAMERA
SPLITTER
The Remote On function allows you to turn the
transmitter on from a remote location. The Remote
On function overides the OFF switch on the
transmitter.
HARD WIRED
SWITCH
STRIPPED AND
TINNED LEADS
STANDARD
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.
KEY FOB
SWITCH
RECEIVER
TRANSMITTER
KEY FOB
SWITCH
TRANSMITTER
DTC COMMUNICATIONS, INC.
15
ACCESSORIES
Part Number
Description
1088185
VidiVest™
The VidiVest™ is designed to be used in conjunction with DTC’s body worn video
transmitter. The vest supplies compartments for the video transmitter, associated
wiring, antenna system (i.e. VidiWire™), microphones, and a button camera. The
garment is ventilated for comfort and can be adjusted with velcro straps at the
waist and shoulders. The vest is intended to be worn as an undergarment with a
loose fitting shirt or other garment over the vest.
4045181
Camera with 3-pin connector
Assembly
This camera is a high-resolution color CCD type, which has been modified to look
like a shirt button. This allows for easy concealment through a regular button
hole.
4045192-024
VidiVest cable harness
This cable harness connects all of the components, such as, the transmitter,
camera, and remote on.
16
DTC COMMUNICATIONS, INC.
Part Number
Description
VW-ANT-2-SMA
VW-ANT-1-SMA
VidiWire antenna system 2.4-2.5 GHz
VidiWire antenna system 1.7-1.9 GHz
ACCESSORIES
The VidiWire™ antenna system was specifically designed for video transmission
from on-body transmitters. This DTC Proprietary system provides the best
possible omnidirectional video transmission from a body-worn system. The
system is composed of three parts: two special patch-type antennas, and a
phasing module.
WARNING: VidiWire Antennas are housed in a milled aluminum cover which
shields the wearer from RF energy. Make sure the antennas radiating side is
directed away from the body.
Specifications
WARNING: Do not use the VidiWire antenna system on the body with any
transmitter outputting more than 250mW of RF energy.
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
Type
DTC proprietary
VidiWire™ design
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane
Requirements
Size
Antennas:
Dual Polarized
Pseudo-Isotropic
Omnidirectional
Omnidirectional
50 Ohms
Phasing Unit
Net Weight
VW-ANT-2-SMA
VW-ANT-2-TNC
VW-ANT-1-SMA
Not applicable
2.0” W x 2.0” H x 0.25” D
(51 mm x 51 mm x 6.35 mm)
2.0” W x 1.5” H x 0.25” D
(51mm x 38mm x 6.35mm)
6oz
2.4 to 2.5 GHz SMA male
connector
2.4 to 2.5 GHz TNC male
connector
1.7 to 1.9 GHz SMA male
connector
DTC COMMUNICATIONS, INC.
17
ACCESSORIES
Part Number
Description
4045170-024
Video In, 24”standard.
Video In: Multi I/O to RCA(M) with BNC
adaptor. (YELLOW)
4045193-024
Video In/Remote On, 24”standard.
Video In: Multi I/O to RCA(M) with BNC
adaptor. (YELLOW)
Remote On: 24 AWG wire with a molex
connector and stripped and tinned leads. (GREEN)
4045189-024
Video In/EXT Power/Camera Power cable, 24”standard.
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)
18
DTC COMMUNICATIONS, INC.
Part Number
Description
4045194-024
Video In/Camera Power, 24”standard.
Video In: Multi I/O to RCA(M) with BNC
adaptor. (YELLOW)
Camera Power: 24 AWG wire with a molex
connector and stripped and tinned leads. (GRAY)
4045192-024
Video In/Camera Power/Remote On, 24”standard.
Video In: Multi I/O to RCA(M) with BNC
adaptor. (YELLOW)
Camera Power: 24 AWG wire with a molex
connector and stripped and tinned leads.(GRAY)
Remote On: 24 AWG wire with a molex
connector and stripped and tinned leads. (GREEN)
ACCESSORIES
DTC COMMUNICATIONS, INC.
19
COMPONENTS
20
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.
4045174-006
4045174-012
Antenna cable, SMA to TNC, 6”standard length
Antenna cable, SMA to TNC, 12”
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 Micro-fit
Connector
Note: Optional battery packs are not to be used in body worn applications.
Use only internal batteries when the transmitter is to be worn on the body.
DTC COMMUNICATIONS, INC.
Part Number
Description
4045131
AA (13.5 V) Non-rechargeable Battery Pack with
Molex Micro-fit Connector
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
8550104
8590139
8550101
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)
Inline. Molex Part # 43640-0200
Note: Optional battery packs are not to be used in body worn applications.
Use only internal batteries when the transmitter is to be worn on the body.
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.
DTC COMMUNICATIONS, INC.
21
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 high purity circular polarization. This
ensures the highest possible performance in video reception, especially in
diversity systems. It is available in three 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.
Specifications
Type
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane Req.
Size
Weight
DTC Part Number
7011156-1
7011156-3
7011156-2
Three Hybrid Patch™
elements
RHCP
5dBic
90°
90°
50 Ohms
Built-in
6.6” H x 6.6” W
(167mm x 167 mm)
12 Oz. (34g)
Frequency Range
1700 to 1850 MHz
1990 to 2110 MHz
2400 to 2500 MHz
VDAR-1
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
22
DTC COMMUNICATIONS, INC.
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).
ANTENNAS
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
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)
3.7 oz. (105 g)
Frequency Range
2.4 to 2.5 GHz, RHCP
2.4 to 2.5 GHz, Lhcp
1.7 to 1.9 GHz, RHCP
1.7 to 1.9 GHz, LHCP
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane req.
Size
Weight
DTC Part Number
QHA-4-2-R
QHA-4-2-L
QHA-4-1-R
QHA-4-1-L
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
DTC COMMUNICATIONS, INC.
23
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.
Ant-5P
Specifications
Type
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane Req.
Size
Patch antenna with integral
ring hybrid
RHCP
5dBic
90°
90°
50 Ohms
Built-in
4.0” W x 4.0” H X 0.625” D
(102mm x 102mm x 16mm)
Weight
DTC Part Number
ANT-5-P-SMA
6.4 Oz. (180 g)
Frequency Range
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
24
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
DTC COMMUNICATIONS, INC.
Part Number
Description
ANT-10
9dBic Wideband Panel Connector: TNC Female
ANTENNAS
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.
Ant-10
Specifications
Type
Polarization
Peak Gain
Horizontal Beamwidth
Vertical Beamwidth
Nominal Impedance
Groundplane Req.
Size
Weight
DTC Part Number
4044411
7011142
Log-spiral slot array, absorber
loaded
RHCP
9dBic
30°at 2.0 GHz
30°at 2.0 GHz
50 Ohms
Not required
9” W x 9” H x 1.2” D
(227mm x 227 mm x 30 mm)
1.7 lb. (750g)
Frequency Range
1.7 to 2.7 GHz; RHCP
1.7 to 2.7 GHz; RHCP with
MAF - 1 grip included
WARNING: Refer to Appendix A of this manual for information on the proper
use of antennas.
DTC COMMUNICATIONS, INC.
25
PROGRAMMING
Introduction
DTC has built in a lot of flexibility in the programming options you have on the VBL
and VBS series transmitters. You can choose to use some, all or none of this
flexibility.
When you order a VBL or VBS 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 VBL or VBS transmitter’s video frequencies and audio
sub-carriers 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!
26
DTC COMMUNICATIONS, INC.
Installing DTC Universal Programming Software on your PC
PROGRAMMING
NOTE: Uninstall any previous versions by going to Add/Remove Programs,
clicking on DTC Universal Programming, and clicking on uninstall.
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.
10
Double click on the setup.
11
Follow the install wizard screens.
Your programming software is installed.
DTC COMMUNICATIONS, INC.
27
PROGRAMMING
AC POWER
ADAPTER
SERIAL PORT OF
COMPUTER
COM1 OR COM2
28
DTC COMMUNICATIONS, INC.
Make sure the video transmitter ON/OFFswitch is set to OFF. The red dot 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
and plug in the AC adapter.
Turn the transmitter switch to ON. The green dot
is ON.
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.
9
10
11
12
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.
PROGRAMMING
13
Your new settings have been installed.
10
11
12
DTC COMMUNICATIONS, INC.
29
APPENDIX A
Using Antennas with the VBS/VBL-250 Video Transmitter
Bodyworn applications:
When the VBS/VBL-250 video transmitter is to be worn on the body,
only the DTC VidiWire antenna system should be used to insure that appropriate RF
exposure levels are not exceeded. This antenna has been extensively tested and
found to be safe when used as directed. The antennas used in the VidiWire system
are clearly labeled as to which side of the antenna should be placed against the
body. These directions must be observed to insure safe and effective operation. In
addition, there are steps that the user may take to further reduce their RF exposure.
Turning the transmitter OFF when it is not needed will reduce the actual time that the
user is exposed to the RF signal. For optimum performance, keep arms, hands, etc.
away from the side of the antenna that faces away from the body.
Non-portable applications:
In mobile or fixed location applications, 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.
Except as described above for bodyworn applications, no antenna should be placed
closer than 8 inches (20 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.
30
DTC COMMUNICATIONS, INC.
486 Amherst Street • Nashua, New Hampshire 03063 • 603-880- 4411
www.dtccom.com

---

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Create Date                     : 2002:12:12 08:55:43-05:00
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Subject                         : FCC Bodyworn
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Metadata Date                   : 2002:12:12 13:55:43Z
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Title                           : FCC Bodyworn
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