HARRIS M803M Operators Manual

M-803 Gemini Series
Mobile Radio
OTP 5.07 OCF 3.13
Revision History
Date Updated by Description of change
08/14/01 Dennis Giddings New
Notice of Copyright
The contents of this manual are not intended to and do not constitute a warranty of any sort. M/A-COM, Inc and Tyco Electronics specifically disclaim any implied warranties of merchantability or fitness for any particular purpose resulting from this manual.
Information in this document is subject to change without notice. M/A­COM, Inc. reserves the right to revise and make changes to this manual (and to the Kensington product and software) from time to time without obligation to notify any person of, or to provide any person with, such revisions or changes.
M/A-COM, Inc . and/or Tyco Electronics may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from M/A-COM, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property.
©2001 M/A-COM, Incorporated. All rights reserved.
Document # TBSL. Part No. 000-0000 Printed in the United States of America

Preface

Notices to the User and Safety Training Information
IMPORTANT INFORMATION ON SAFE AND
OPTIMAL OPERATION. READ THIS BEFORE
USING YOUR M-803 MOBILE RADIO
Your M-803 radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only” meaning it must be used only during the course of employment by individuals aware of the hazards and
WARNING
the ways to minimize such hazards. This radio is NOT intended for use by the “General Population” in an uncontrolled environment.
This radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only.” In addition, your M-803 radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans:
FCC OET Bulletin 65 Edition 97-01 Supplement
C, Evaluating Compliance with FCC Guideli nes for Human E xposure to Rad io Frequency Electromagnetic Fields.
American National Standards Institute (C95.1 –
1992), IEEE Standard for Safety Levels with Respect to Hu man Exposure to Radio Freq uency Electromagnetic Fields, 3kHz to 300 GHz.
Use of this radio as described below will result in user exposure substantially below the FCC recommended limits for human exposure to Radio Frequency Electromagnetic energy.
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Before operating this radio, be sure you:
Do not operate this radio if any of the RF
connectors are not secure or if open connections are not properly terminated.
Do not operate this radio near electrical blasting
caps or in an explosive atmosphere.
This radio has been tested and complies with the FCC RF exposure limits for Uncontrolled Exposure and Occupational exposure. The difference is in the minimum safe distance that people must be away from the antenna when transmitting RF energy. To assure optimal radio performance and that human exposure to RF electromagnetic energy is within the guidelines, transmit only when people are at least the minimum distance away from a properly installed antenna. The following lists these minimal allowable d istances:
M-803 Radio Rated Power
45 dBm max, 43 dBm nominal
45 dBm max, 43 dBm nominal
The radio must be serviced and installed only by a qualified technician. Be sure that the radio is properly grounded according to the installation instructions.
Note on jump-starting: If you need to jump start an M­803 equipped vehicle, the positive radio lead from the radio must be disconnected from the vehicle battery. Disconnecting the lead will prevent damage to the radio.
This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made.
Antenna Gain
Minimum Distance for Uncontrolled Exposure
0 dB 68.5 cm (27
inches)
3 dB 97.6 cm (38.4
inches)
Minimum Distance for Occupational Exposure
30.6 cm (12 inches)
43.2 cm (17 inches)
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This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Government law prohibits the operation of unlicensed transmitters within the territories under government control. Illegal operation is punishable by fine or imprisonment or both. Refer service to qualified technicians only. Do not operate your transceiver in explosive atmospheres (gases, dust, fumes, etc.).
Occupational Safety Guidelines and Safety Training Information
To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines.
CAUTION
Your M-803 Mobile Radio transmits using a remote antenna. When it is ON, it receives and also sends out radio frequency (RF) signa ls.
In 1996, the Federal Communications commission (FCC) adopted RF exposure guidelines with safety limits for portable devices, based on the recommended limits of the National Council on Radiation Protection and Measurements (NCRP) and the American National Safety Institute (ANSI).
The design of the M-803 Mobile Radio complies with the FCC guidelines for Occupational / Controlled exposure to RF electromagnetic fields, as measured by the Maximum Permissible Exposure (MPE). To assure optimal performance and make sure human exposure to RF electromagnetic energy is within the FCC guidelines, always adhere to the following:
1. The push-to-talk button should only be depressed
when intending to send a vo ice message.
2. The radio should only be used for necessary work
related communications.
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3. The radio should only be used by authorized and
trained personnel and should not be operated by children.
4. Do not operate your radio in explosive
atmospheres (gases, dust, fumes, etc.) or near explosive blasting caps.
5. Do not attempt any unauthorized modification to
the radio. Changes or modifications to the radio may cause harmful interference. Any servicing of the radio should only be performed by qualified personnel.
6. Always use M/A-COM authorized accessories
(antennas, control heads, speakers/mics, etc.). Use of unauthorized accessories can cause the FCC RF exposure compliance requirements to be exceeded.
The information listed above provides the user with the information needed to make him or her aware of a RF exposure, and what to do to assure that this radio operates within the FCC exposure limits of this radio.
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Table Of Contents

Welcome to the OpenSky Network 1
OpenSky Overview 2
Internet Protocol (IP) Network 2
TCP / IP Backbone 2
Addressable Headers 3
System-Wide Voice Encryptability 3
Integrated Voice and Data 3
Digitized Voice, Text and Graphics 4
Multi-Age nc y Cove ra ge 5
Promotes Interagency Cooperation 5
Connectivity with Legacy Equipment 6
Improved Coverage and Signal Strength 6
Better Peak-Time Performance 7
Software-Config u red Device 8
Multi-Mode Functionality 8
Software Upgradeable 9
Network Organization 11
Your Voice Feature Personality 12
User Groups 13
Profiles 14
Talk Groups 15
Listen Groups 15
Talkback Scanning 16
Radio Personality 16
Terminology 18
Getting Started 19
Before Your First Shift 20
Radio Controls 20
Front Panel Components 21
Peripheral Interface 23
RS-232 Port 23
I/O Connector 23
CAN 2.0 Bus 23
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Hardware Connections 23
Display Screen Overview 25
Dwell Displays 27
Dwell Display User-Selectable 27
Sample Dwell Displays 28
Dwell Display–Profile 28
Dwell Display-Caller 29
Dwell Display–Received Talkgroup 29
Dwell Display–Channel 30
Dwell Display–No Access 30
Display Screen Functions 33
Menu and Selector Keypad 34
User-Selectable Menu Operations 34
Keypad Navigation 34
Select Dwell Display 35
Select Operational Mode 36
Universal Connectivity 37
Duration of Mode Change 38
Select Profile 39
Check or Change Active Profile Status 40
Select Talkgroup 41
Check or Cha nge Active Talkgroup 41
Prioritizing a Talkgroup 43
Duration of Priority Assignments 44
Lock Out Talkgroup 44
Groups You Can Lock Out 45
Caution Regarding Profi l e Changes 48
Select Scan Mode 48
Check or Change Active Scan Mode 49
Duration of Scanning Mode Selections 50
Select Channel 51
Enable/Disable Side Tones 52
Select Brightness Setting 53
Basic Radio Operations 55
Power Up 56
Log-On 57
Self-Test 58
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Power Down 59
Set Volume 60
Voice Calls 61
Talkback Calls 63
Emergency Communications 64
Advanced Radio Operations 65
Fine-Tuning Your Personality 66
Dynamic Regrouping 66
Talkaround Mode 67
Troubleshooting 68
CH-103 Control Head 71
Features and Components 72
Equipment Configurations 73
Dash-Mount Mobile Configuration 73
Dash-Mount Mobile with CH-103 74
Trunk-Mount Mobile Configuration 76
VTac Vehicular Tactical Network 77
Full or Shared Radio Controls 78
Single Control Head 79
Multiple Control Heads 79
Independe nt Functions 79
Shared and Arbitrated Functions 80
VTac Vehicular Tactical Network 81
Vehicular Tactical Network 82
Backward and Forward Compatibility 82
Operational Modes 83
“A Base Station in a Trunk” 83
Hardware Components 84
VTac Mobile Unit 84
VTac Base Unit 85
RF Combiner 85
Extended Coverage 85
User Interaction 85
Scene of Incident 86
User Interaction 86
Public Safety Hardened 86
GPS Option 87
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Connectivity Interface 87
Indexes and Tables i
Index i
Table of Figures iii
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CHAPTER 1

Welcome to the OpenSky Network

OpenSky Overview 2
Internet Protocol (IP) Network 2
TCP / IP Backbone 2
Addressable Headers 3
System-Wide Voice Encryptability 3
Integrated Voice and Data 3
Digitized Voice, Text and Graphics 4
Multi-Age nc y Cove ra ge 5
Promotes Interagency Cooperation 5
Connectivity with Legacy Equipment 6
Improved Coverage and Signal Strength 6
Better Peak-Time Performance 7
Software-Config u red Device 8
Multi-Mode Functionality 8
Software Upgradeable 9
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CHAPTER 1—Welcome to the OpenSky Network

OpenSky Overview

M/A-COM’s OpenSky is a suite of radio communi­cations products implementing an integrated digital voice and data system based on the Internet Protocol.
The OpenSky network is digital, but provides inter­operability with analog radios, making it possible to integrate existing (legacy) equipment alongside the most sophisticated digital equipment available today.
If you’ve been issued an M-803 to replace a conventional analog voice-only radio, you’ll particularly appreciate the integrated voice and data capabilities of the all-digital OpenSky mobile equipment.
Even experienced digital subscribers recognize and value the addressability precision and expanded coverage strength of the e nd-to-end TCP/IP OpenSky Intranet.

Internet Protocol (IP) Network

OpenSky’s Wireless Private Network is changing the nature of real-time communications for large fleet mobile businesses and public safety organizations alike.
TCP / IP Backbone
Using Internet Protocol (IP) as a network backbone for end-to-end user applications, OpenSky integrates digital voice and packet data transmission over a single network that provides significant performance advantages over yesterday’s uneasy alliances of independently-built radio networks trying unsuccessfully to interact.
Like tuning into a channel in a conventional FM
radio system, logging onto the Ope nSky network
with your pre-configured user profile will place you in contact with the members of a software-
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defined talk group consisting of the set of users you need to talk with most.
Unlike your conventional FM radio, your M-803
mobile radio is a node on an Internet-Protocol (IP) network with i ts own unique IP addre ss.
Addressable Headers
Messages intended for you (whether voice or data) are broken into packets with identifying headers, just like World Wide Web internet communications, and targeted to your specific IP address.
You can travel anywhere within your network, e ven a
Like cell-phone calls, messages are del ivered directly to your equipment.
But, like radio calls, users select which calls to receive by “tuning in” or “locking out ” oth er us er groups.
hundred miles or mor e fro m the se nde r , and me ssa ge s intended for your IP address will find their way acr oss the network, handed off from base station to base station, until they are re-configured and delivered to your personal receiving set.
This doesn’t mean your communications are traveling across the World Wide Web. Far from it. OpenSky is a private wireless Intranet that adopts the best features of IP protocol for increased communications efficiency and capacity.
Welcome to the OpenSky Networ k—CHAPTER 1
System-Wide Voice Encryptab ility
Furthermore, your communications are packeted as they travel the network, so they can only be deciphered by networked equipment. Your sensitive conversations and data transfers can even be encrypted end-to-end for enhanced system-wide security.

Integrated Voice and Data

Your M-803 Gemini Series Mobile Radio is a hardware component of the OpenSky network, an integrated voice and data communications system that delivers end-to-end digital voice and data transmissions over a single wireless network to your dash-mounted or trunk-mounted device.
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CHAPTER 1—Welcome to the OpenSky Network
Digitized Voice, Text and Graphics
By converting analog voice waves to digital code before transmitting them over the network, OpenSky technology makes it possible for mobile radio users to send and receive voice transmissions at the same time they receive and view data (via the radio’s serial port) on an optional equipment Mobile Data Terminal.
With an M-803 in your vehicle, you’ll be able to scroll
For graphics, i nt er face a Mobile Data Terminal (MDT) through your radio’s RS-232 per i p heral port.
through complex instructions, driving directions, or emergency warnings on an optional mobile computer or terminal device while at the same time carrying on conversations with dispatchers or other mobile operators in your coverage area.
OpenSky and the M-803 eliminate the need to run separate systems for voice communication and data transmission. And, with OpenSky, you won’t even have to switch between radio modes to do both simultaneously.
RS-232 Interface
For data transfers or graphics, your M-803 is constructed with an industry-standard RS-232 interface serial port for connecting an optional equipment Mobile Data Terminal (MDT), laptop PC or third-party display or key-entry device.
OpenSky works seamlessly with equipment from popular manufacturers and off-the-shelf applications through a standard UDP/IP protocol, providing you with simple “plug and play” connectivity.
Suddenly and simply, the same M-803 you’ve been using for voi ce conversation and tuning radio frequencie s becomes the device you use t o view photographs, maps or driving directions, generate reports, access databases, in short to share any digital file your job requires.
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Welcome to the OpenSky Networ k—CHAPTER 1

Multi-Agency Coverage

OpenSky is scalable and designed to accommodate a virtually unlimited number of mobile and portable devices from a single fleet, or even a complex network made up of several cooperating agencies.
Examples of how OpenSky improves cooperation:
Every truck in the FedEx fleet can share one large
national net wor k.
Every cruiser in a state-wide police agency can
communicate with any other cruiser, from one end of the state to the other.
Patrolmen with older analog equipment can
connect seamlessly with newer digital devices over the same network.
Emergency response agencies share the same
network for improved communications during a massive crisis.
With an M-803 at the heart of your trunk-mounted
VTac Vehicular Tactical Network, your vehicle provides off-network user-to-user communications at the scene of an emergency.
Promotes Interagency Cooperation
In fact, the system is best suited to multi-agency public
See full discuss i ons of Talk Group, Use r Gr oup and User Profile el s e­where in this manual.
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safety networks over areas as large as an entire state: every cruiser, ambulance and fire truck and all their dispatchers and support personnel sharing voice, data, even graphics over the same network.
Talk to Anyone on the Network
Each user needs only one radio to connect seamlessly to many independent agencies or cooperating dispatch networks.
There’s no need to monitor multiple frequencies on
several pieces of equipment to maintain contact.
CHAPTER 1—Welcome to the OpenSky Network
User talk groups connect you at all times with
precisely the users you need to reach, no matter who they work for, or where they’re located within the networ k.
Connectivity with Legacy Equipment
The all-digital, end-to-end TCP/IP OpenSky Intranet even provides support for legacy equipment and protocols both digital and analog.
Along with supplying voice and data to your M-803 mobile radio, the network will also support existing (or “legacy”) radio equipment you may still need to use during a hardware rollover.
This also means you’ll be able to make radio contact with cooperating agencies on the same network, whether or not they have made the conversion to OpenSky equipment, as long as they use their radios to network with Open Sk y.
Voice and Data to a Single Devic e
With OpenSky, you won’t need independent system
For graphics, you’ll need to remain connected to your Mobile Data Terminal (MDT).
architecture to receive voice and data communications. And, with a Mobile Data Terminal connected through the peripheral interface, you’ll have unprecedented ability to send and receive forms, NCIC profiles, maps, floorplans, all the complicated graphical data you need to make informed on-the-job decisions.
Improved Coverage and Signal Strength
Part of OpenSky’s scalability is its ability to acco mmo­date as many base stations a s your coverage area requires for robust voice and data transmissions, wherever your route may extend within the network.
Vehicular Tactical Network
VTac devices (trunk-mounted M-803 radios arrayed with a duplexer and a vehicular repeater) and OpenSky cell sites automatically extend coverage into otherwise hard-to-reach areas.
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With a VTac device in your vehicle, you’ll enjoy extended signal reach into buildings or behind barriers, as well as repeater capability for off-network unit-to­unit communications.
Background Roaming and Switching
Automated switching takes place in the background with OpenSky, so you’ll no longer be required to scan for an open channel, or wait for an available channel, when you move thro u gh yo ur co ver a ge are a.
Instead of depending on choices from a central
Signal strength sensitivity is user-modifiable to reflect local conditions.
switching station, your radio itself constantly monitors signal strength and makes its own decision to roam to another base site for a more robust connection.
Chances are you’ll never know your unit has been “handed off” to a new base station and automatically assigned to the best available channel.
Better Peak-Time Performanc e
OpenSky’s digital trunking archite cture pro vides enormous ad vantages over conventional FM operat ion. Conversation capacity is effectively doubled by the system’s ability to carry two voice-to-voice conver­sations over the same channel that was previously dedicated to just one.
Welcome to the OpenSky Networ k—CHAPTER 1
TDMA Technology
The M-803 uses TDMA technology to allow multiple users to share a single RF channel. In addition, a single 25kHz RF channel can support simultaneous digital voice and data communications.
By doubling the capacity of each channel, the OpenSky TDMA networ k relieves the pressure of he avy use without additional channels.
The M-803 supports multiple voice groups, multi-level priorities, priority scanning, dynamic voice group assignment, pre-emptive emergenc y calls and optional encryption.
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CHAPTER 1—Welcome to the OpenSky Network
Optional GPS Tracking
GPS tracking devices embedded in optionally-equipped M-803 radios quickly and accurately locate users on a visual display screen for dispatchers, virtually eliminating the need for users to report their position. With an overview of the locations of all vehicles,
GPS tracking uses a small fraction of system resources, but eliminates verbal location reporting for huge overall capability gains.
dispatchers have the information they need to assign the nearest vehicle to a developing emergency.
By eliminating the background chatter of constant location reporting, OpenSky frees up system resources for more critical communications, especially at peak traffic times.

Software-Configured Device

Your M-803 is a “soft” radio. Its functions are deter­mined by OpenSky software applications, in much the same way computer hardware is configured for different applications.
Unlike older analog radios you may have used, with their hardware-based proprietary functions, your M-803 converts voice waves into digital information before it transmits to the network, providing noise-free audio transmission and reception.
What’s more, because each user in the network has a
Make any radio in the system “your radio” by logging on with your identity code.
unique identity code, you can activate your identity from any radio connected to the network. Any radio from your agency’s hardware stockp i le can become “your” radio and log on with your profile.
Multi-Mode Functionality
Finally, if you need to be multi-mode, your M-803 supports several (even several applications simulta­neously) providing capability with the needs of different user groups.
You can operate under the OpenSky digital protocol or use the same device to access Conventional FM with CTCSS analog FM or APCO Project 25 Phase 1 operations, depending on the user configuratio n of your network or agency.
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Welcome to the OpenSky Networ k—CHAPTER 1
Analog-to-Digital Rollover
The M-803 can work with existing analog infra­structure to enable an essentially seamless transition to fully digital communications
If your user group or another user group with whom you communicate is making the transition from analog to digital service over time, you’ll be able to use your M-803 throughout the rollover by selecting the correct mode.
What’s more, the M-803 is field re-programmable over the radio channel to allow for future capabilities without replacing the existing subscriber equipment.
The principle operating mode currently in use is
the OpenSky Trunked Protocol (OTP).
From the Mode Se l ection Menu, you c an also
access OpenSky Conventional FM (OCF) with Continuous Tone Coded Squelch Syste m (CTCSS).
From the Mode Se l ection Menu, you c an also
access OpenSky Conventional (OCF) mode using APCO Project 25 Common Air Interface.
Software Upgradeable
As with computer har d ware , your mob il e rad i o equipment is upgradeable each time the OpenSky software enables a new feature or operational enhancement.
Communications protocols, radio features, and protocols can be changed easily and transparently to the user, during a shift or during “sign-on” at the beginning of a new shift.
Enhanced Digital Features
The all-digital network and OpenSky’s digital trunking
See full discuss i ons of
User
Talk Group, Group and profiles in Chapter 2 of this manual.
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features also enable a rich array of network enhance­ments unthinkable over historical FM broadcast systems.
CHAPTER 1—Welcome to the OpenSky Network
Voice grouping (into talk groups, user groups, and profiles) is probably the most obvious advantage to individual users, but the interconnectivity of the OpenSky network also enables a variety of essential enhancements includi ng:
Priority scanning
Multiple priority levels
Pre-emptive emergency calls
Selective calls directly to User ID
Late-entry calls
Autonomous roaming for wide area applications.
You’ll benefit from high-quality, noise-free voice communications with enhanced speech clarity compared to analog, especially in noisy environments.
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Network Organization

Your Voice Feature Personality 12
User Groups 13
Profiles 14
Talk Groups 15
Listen Groups 15
Talkback Scanning 16
Radio Personality 16
Terminology 18
CHAPTER 2
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CHAPTER 2—Network Organization

Your Voice Feature Personality

When you activate your radio at the beginning of a shift and sign on with your unique identity code, your radio is assigned its IP address and “provisioned” with a radio personality that identifies the other users on the network with whom you are most likely to need to communicate.
Some users you’ll only monitor, others you’ll want to talk with during the course of your shift, just as with older analog equipment you talked over one frequency and monitored others to keep informed about the activities of users in your agency, workgroup, task force, fleet or geographic area.
Your overall radio personality is organized into User
Profiles are assigned by your network admi ni ­strator to match your communication needs. You’ll have access only to those users who fall within your profile.
Groups (talk groups and listen groups), similar to a
channel in a conventional FM radio system. These user groups are then organized into Profiles (collections of up to 16 user groups), similar to banks of channels. Finally, as many as 16 profiles make up your radio Personality.
Only one profile is active at any time. Within that profile, only one user group is your Talk Group; the others are Listen Groups. So, while you have tremendous capability to establish contact with a very large number of users, you’ll need to select the profile that puts you into voice contact with the talk group you need at any time.
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User Groups

A user group is a set of users who regularly need to communicate (all the officers in a state police barracks, for instance, or all the drivers who work a particular shift).
In conventional FM radio broadcast systems ,
In the IP-backbone OpenSky digital network,
With OpenSky, members of the same user group can stay in contact regardless of where they roam within the network, whether the network incorporates a single county, a state, even the entire nation.
Dispatchers maintain contact with all members of the
Network capacity is the only limitation on the number of users that can make up a group.
group, and each user can stay in “push-to-talk” contact with the dispatcher and all the users in their talk group, even if those users are from different, inter-networked agencies.
Network Organization—CHAPTER 2
these users work together by tuning to the same channel.
subscribers in a user group are connected by a bit of data in the header of every voice or data packet addressed to the members of the group.
The Figure below illustrates a small user group of four M-803 mobile radios.
Figure 1 User Group
Sample Configuration
Each radio assigned to an individual user
Nothing about this user group so far defines it as a Talk Group or a Listen Group. That determination is made when user groups are gathered together by the network administrator into the larger groups called profiles.
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CHAPTER 2—Network Organization

Profiles

A profile is a set of up to 16 user groups. All sorts of configurations are possible within this simple architecture. Police officers on the same shift might make up a profile, for instance. Within this profile, each police station on the network might be assigned a user group. So the profile would connect all the cruisers from 16 stations for an entire shift.
Officers from each station would most likely be in “push-to-talk” contact with one another; all other officers on the same shift would most likel y monito r the other groups for “listen-only” access to all other calls within the profile. But this is only one possible configuration.
A user group might just as easily include officers from
Members of a talk group are not necessari l y scanning the calls of the same listen groups.
several stations: a SWAT team, for example, or a special emergency task force might require the collaboration of special personnel or equipment from different police stations, or even other agencies.
In conventional FM radio broadcast systems ,
users with this sort of relationship would create an “ad hoc” profile by tuning to one channel for talk­group privileges and scanning an entire bank of channels to monitor the conversations of other groups.
In the IP-backbone OpenSky digital network,
members of the same talk group automatically receive every voice message addressed to the group, and monitor the voice messages of every other user group in the profile.
Each user in the OpenSky network can be assigned as
Of the 16 available profiles, Network Administrators will often reserve one for Dynamic Regroup use.
many as 16 profiles by the network administrator. At any time during a network session, users can select the profile that suits their needs by using the front control keypad to access the Profile Menu. If selected for Dwell Display, the Current Profile selection will be visible in the radio’s front panel display area.
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Talk Groups
Network Organization—CHAPTER 2
Figure 2 User Profile
Sample Configuration
User Group 1 User Group 2 User Group 3 User Group 16
. . .
Talk Group Up to 15 Listen Groups
While your active profile can contain up to 16 user groups, only the primary group in any profile is your Talk Group. All the other user groups in your profile are listen-only groups. You’ll hear the calls from these groups but they will not hear your voice unless your
user group is part of their profile.
To initiate voice-to-voice contact with a particular user, you’ll have to select the profile that makes that user part of your talk group. This is only possible if your network administrator has configured a talk group that contains both you and the other user.
If each of you has a profile that includes the other in a talk group, you can each select the profile that puts you into “push-to-talk” contact with the other. (Or one of you can reply to the other in Talkback Mode.)
Listen Groups
All the other user groups in each of your up to 16 profiles are “listen groups”. See the User Profile Figure above for an illustration of how user groups are related in a profile.
By adding different listen groups to your several profiles, your network administrator can change the configura tion of the user groups you can monitor at any time by making the appropriate choice from the Profile menu.
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CHAPTER 2—Network Organization
You may only have one talk group, but that doesn’t keep you from tuning in different profiles to monitor a different “bank of channels.”
Talkback Scanning
While you cannot initiate contact with users in your “listen groups,” you can reply to their incoming calls using Talkback Scan mode.
With your radio in Talkback Mode, your display screen will show the identity of your most recent incoming caller. Press the Push-to-Talk button on your handset and send your voice repl y.

Radio Personality

Your radio personality is a collection of up to 16 profiles. The entire personality is organized by your network administrator and is unique to your communication needs.
When you activate your radio at the beginning of a
If an emergency pr om pts your Network Administrator to enac t a Dynamic Regrouping of user groups, you’ll be prompted to conduc t a mid-shift log-on to re­provision your radio with an updated personality that includes a pre­programmed or a d hoc emergency user pr o f i l e.
shift and sign on with your unique identity code, your radio is assigned its IP address and “provisioned” with a radio personality that identifies the other users on the network with whom you are most likely to need to communicate by voice.
Your overall radio personality is organized into User Groups (talk groups and listen groups), similar to a channel in a conventional FM radio system. These user groups are then organized into Profiles (collections of up to 16 user groups), similar to banks of channels. Finally, as many as 16 profiles make up your personality.
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Network Organization—CHAPTER 2
Figure 3 Radio Personality
Sample Configuration
Profile 1 (1 Talk Group and up to 15 Listen Groups)
. . .
Profile 2 (1 Talk Group and up to 15 Listen Groups)
. . .
...Profile 16 (1 Talk Group and up to 15 Listen Groups)
. . .
Radio personality architecture gives you tremendous flexibility to organize your communications needs, even as conditions change. Network administrators can even create ad hoc work groups and profiles to respond to emergent conditions, then prompt the affected users to re-provision their equipment while the emergency unfolds.
With 16 profiles you can participate in as many as 16 talk groups. Or, if you only need one talk group, you can still have up to 16 different profiles that can add more than 200 other user groups to your listen group pool, each with an almost unlimited number of subscribers.
Of course, with potentially hundreds of voice calls in your profile at any time, you’ll appreciate the ability to establish Priority Scan groups, or even Lock Out others to help focus your incoming calls.
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CHAPTER 2—Network Organization

Terminology

Most of the terms and concepts you’ll need to communicate with your dispatcher, network administrat or and other users have parallels in legacy analog networks.
Digital Compare to Analog
User Group .........
Profile..................
Talk Group .........
Listen Group.......
Profile..................
FM radio channel Bank of FM radio channels “Push-to-talk” connection with
users tuned t o the same channel “Listen-only” connection to a bank
of radio channels Talk privileges on one channel
while monitoring an entire bank of channels
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CHAPTER 3

Getting Started

Before Your First Shift 20
Radio Controls 20
Front Panel Components 21
Peripheral Interface 23
RS-232 Port 23
I/O Connector 23
CAN 2.0 Bus 23
Hardware Connections 23
Display Screen Overview 25
Dwell Displays 27
Dwell Display User-Selectable 27
Sample Dwell Displays 28
Dwell Display–Profile 28
Dwell Display-Caller 29
Dwell Display–Received Talkgroup 29
Dwell Display–Channel 30
Dwell Display–No Access 30
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CHAPTER 3—Controls and Indicators

Before Your First Shift

If you’re already familiar with mobile radio functions and the “profile and personality” architecture of an all­digital network, you’ll find the features and controls of your new M-803 to be logically arranged and easy to
Don’t read this manual cover-to-cover.
Most information in this manual is repeated in several places.
You’ll probably learn most of what you need to know by browsing sections that interest you most.
understand. But if you’re new to cellular radio service, and
especially if you’re migrating to OpenSky from an analog radio environment, take some time to review the Network Organization chapter of this manual before operating your radio.
In either situation you’ll want to completely familiarize yourself with the controls and indicators of your new radio before you start trying to use it on the job. In particular, you’ll want to be able to scroll your way through menu display choices and quickly select the appropriate radio profile for the changing conditions of your wo rk da y.

Radio Controls

Examine your radio thoroughly and familiarize yourself with the location and operation of its controls and indicators before studying their functions. Except for the rear-panel peripheral interface, all the operational controls for the M-803 are located on the control pa nel or handset.
Whether your passenger compartment is equipped with a dash-mount Mobile Radio Unit (MRU) or a subsidiary Control Head Unit (CHU), the following section will introduce you to all the controls and indicators of your radio’s front panel.
20 M-803 Operator Manual Software Version OTP 5.07

Front Panel Components

V
r
s
The front panel of your M-803 (or CH-103) includes the Power Button/Speaker Volume Dial, the Micro­phone/Speaker I/O Port, a 5-key “soft-button” keypad for making menu selections, a 19-character vacuum fluorescent Display Panel, 3 Mode Selector buttons, an Emergency Button and an Ambient Li ght sensor.
Your Push-to-Talk button is locat ed on your hand-held
Up to five Control Head Units (CHU) can be supported by a singl e Mobile Radio Uni t (M R U) . The most typical multiple CHU configuration would be a large fire truck or other vehicle with a dash­or trunk-mounted M-803 and auxiliary control heads positioned els e where on the vehicle.
detachable microphone or hands-free speaker box (not shown here).
Because an M-803 mobile radio can support as many as five Control Heads, your installation may or may not include the hard war e “box” behind the front panel. The figure below shows the complete dash-mounted configuration of an M-803 mobile radio complete with front control panel.
Peripheral equipment such as a mobile computer or data terminal connect to the M-803 through the rear­panel peripheral interface.
Controls and I ndicators—CHAPTER 3
Figure 4 Front Panel Components
Dash-Mount M-803 Standalone Configuration
Ambient Light Senso
Power and
olume Dial
Mic/Speaker Connector
Menu and Selector Keypad
Software Version OTP 5.07 M-803 Operator Manual 21
Emergency Button
Display Panel
Mode Selector Button
CHAPTER 3—Controls and Indicators
Component Function
Power Button/..........
Volume Dial
Mic/Speaker.............
Connector
Emergency ...............
Button
Ambient Light..........
Sensor
Menu and .................
Selector Keypad
Push to Power Up. Push again to Power Down. Twist clockwise to increase speaker volume. Twist counter-clockwise to decrease speaker volume.
Attach hand-held microphone, hands-free speaker, or keypad/microphone here.
In most setups, pressing this button will send an emergency alert and open voice commu­nication with yo ur default emergency tal k gro up .
Radio automatically selects Display Panel brightness level based on ambient light. Do not block this sensor.
Cycle through the menu loop with Up and Down buttons. Scroll through selections with Left and Right buttons. Press Select button to indicate your final choice.
Display Panel ...........
Menu selections appear here, along with Sig na l Strength and Volume indicators. User may select which of several Dwell Screens the radio will display.
Mode Selector..........
Buttons
Depending on setup choices made by your Network Administrator, you’ll use these buttons to choose between software mode presets.
22 M-803 Operator Manual Software Version OTP 5.07

Peripheral Interface

The M-803 supports a variety of interfaces with its flexible interconnect. The rear panel provides power supply connectors and interfaces for both analog and digital peripherals.
RS-232 Port
The serial RS-232 port operates in asynchronous ASCII mode for configuration and control and switches to Serial Line Internet Protocol (SLIP) mode for data communication between the fixed network and a mobile computer or terminal device.
I/O Connector
The I/O connector provides interfaces for an external 10 Watt speaker.
CAN 2.0 Bus
The rear panel also provides access to an industry standard Control Area Network (CAN) 2.0 Bus for reconfigurability and peripheral support.
Controls and I ndicators—CHAPTER 3
Through the CAN port the M-803 in either dash- or trunk-mounted installations can connect to as many as 5 Control Head Units (CH-103) or other CAN peripherals such as public address. A terminator is used if no CAN devices are used. The maximum length of the CAN bus is 40 meters.

Hardware Connections

While day-to-day operations are conducted from the front panel controls, the rear panel connectors will be useful during installation, troubleshooting and hardware upgr ad e s.
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CHAPTER 3—Controls and Indicators
r
Figure 5 Rear Panel Components
Connectors and Interfaces
GPS Connector
CAN Connector
I/O Connector
SER Connector
PWR Connecto
Component Function
SER Connector................
Antenna Connectors
Plug in your optional Mobil Data Terminal (MDT) to this serial RS-232 port.
I/O Connector..................
Plug in your optional 10 Watt Speaker to this port.
CAN Connector...............
Connect up to five Contro l Heads (CH-
103) or other CAN devices such as public address through this port.
GPS Connector................
Plug in your optional GPS antenna to this port.
PWR Connector..............
Cables from the vehicle battery supply power to the M-803 through this port.
Antenna Connectors .......
Plug in your radio antenna to these ports. If the radio has the Full-Duplex option, the radio will have both the TxRx and Tx connectors, otherwise it will have just the TxRx connector. Full-duplex capability provides increased data throughput performance. Full-duplex is recommended when using TCP/ IP end user app l ications, or sending messages longer than 1000 bytes using UPD/IP.
24 M-803 Operator Manual Software Version OTP 5.07
Controls and I ndicators—CHAPTER 3

Display Screen Overview

The display screen shows the curre nt status of your radio setup. Signal strength and volume indicators reside in the right-hand sector. The rest of the screen is devoted to a 2-line Vacuum Fluorescent Display (VFD) that changes in response to user interaction with the Menu Selection buttons
Signal Strength Icon (the 5-bar antenna icon) uses
three bars to indicate three levels of connectivity strength and two bars to indicate the direction of RF data. The directional bars “animate” upward to indicate radio transmit, downward to indicate radio receive.
Speaker Volume Icon (looks like a speaker)
indicates user-selected speaker volume setting. Twist the volume knob to change this setting.
Selection Display (the top line of VFD text)
changes as you press the Left and Right menu selector buttons to scroll through the selections in the active menu loop.
Menu Display (the bottom line of VFD text)
changes as you press the Up and Down menu selector buttons to scroll through the menu loop.
Dwell Display (the user-defined display default)
Users who fail to select a dwell display will not track channels, calls, or profiles. Instead, the screen will display the most recent user menu selection unti l another menu choice is made.
When not engaged in menu selection, the 2-line VFD display defaults to the user-selected Dwell Display. The top line shows the current Transmit Talkgroup. The bottom line shows the user’s choice of the current Profile, Channel, Caller or Received Talkgroup.
The Figure below reflects just one of many possible displays for a front panel display screen. There is no pre-selected default screen for the OpenSky protocols. Instead, each user will select the display condition of his/her choice by making a choice from the Dwell Display menu.
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CHAPTER 3—Controls and Indicators
V
e
g
After any Menu/Select procedure, your display screen will revert to whatever display you ha ve chosen as your dwell display. Once the dwell display is active, it will change dynamically to reflect the current profile, caller, channel or received talkgroup.
Figure 6 Display Panel Elements
Sample Display
Component Function
Signal Strength Indicator
olum
Indicator
Sample Display Screen showin a Talk Group Menu session
Signal Strength.......
Icon
Resident in every display screen. As signal improves, more “waves” appear. Waves animate outward for Message Send, inward for Message Receive.
Volume Icon............
Resident in every display screen. Shows current speaker volume setting chosen by the user.
Menu Selection .......
Display
During a menu session the bottom line responds to the Up and Down menu buttons to show the active menu (Talkgroup Menu in this case). The top line responds to the Left and Right menu buttons to display the options within that menu (available Talkgroups within the active profile in this example).
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Controls and I ndicators—CHAPTER 3

Dwell Displays

The M-803 Display Screen is highly interactive and responds with a changing display in the upper and lower text lines as the user presses the Menu Selection buttons to scroll through the menu loop and the entries under each menu.
When the button-pressing stops, though, the screen will revert to the Dwell Screen and show the current status of whichever category of information the user has selected from the Dwell Display menu.

Dwell Display User-Selectable

The first line of any Dwell Display for Open Sky trunked mod e operation is always the currently ac tive
Your Dwell Display selection survives Power Down for your User ID, so whatever choice was active during yo ur previous session is your ad hoc default selection the next time you Power Up.
Transmit Talkgroup for your selected profile. What appears in the second line, though, depends on what choice you make for your default display preference.
Whatever your preference, your radio will respond dynamically to changes in status, always displayi ng the current information about your network connection. You may elect t o have the screen display your current Profile, c urrent Channel name, current Caller, or Received Talkgroup.
The figure below shows the choices available for dwell display and some representative options available under each menu heading. Setups vary widely from network to ne twork; do n’t expect to find these a ctual options in your menu.
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CHAPTER 3—Controls and Indicators
Figure 7 Dwell Display Hierarchy
Sample Setup
Profile Caller Received
TACTICAL
SOUTH
HIGHWAY
METRO
978240001
...40002
DISPATCH
No Caller
Changing your Dwell Display choice is as simple as any other menu selection operation. Y our choice, once made, per s i s ts until you change it again, even surviving Power Down and re-pro vi sioning procedures for your User ID.
See the chapter on Display Screen Functions for step­by-step instructions on how to select or change your Dwell Display.

Sample Dwell Displays

Figures in the section below are merely illustrative of how dwell displays might look in particular network setups. You should not expect to see these exact text selections i n your own menu, which is prepared by your network administrator to suit the particular needs of your organiza ti on.
Talkgroup
POLICE 01 DISPATCH
EMS 09
No Calls
Channel
OT450 OT460 0T550 OT999
Dwell Display–Profile
If you select Profile as your Dwell Display, the upper line of text will show the Transmit Talkgroup for the
Profile is a largely static Dwell Display. It shows your current profile and active talkgroup, bot h of which are static unless overridden by us er.
28 M-803 Operator Manual Software Version OTP 5.07
active profile. The lower line of text will show the name of the current profile.
Once selected, these displays will update to reflect user interaction. Selecting a new profile will update both the profile and the talkgroup fields to the current selection.
Figure 8 Dwell Display—Profile
t
T
p
Sample Screen
Dwell Display-Caller
If you select Caller as your Dwell Display, the upper line of text will show the Transmit Talkgroup for the
With Caller as your Dwell Display, the identity of your current caller updates dynamically, but the top line always shows your current Transmit Talkgroup.
active profile. The lower line of text will show the User ID of the current caller.
Once selected, these displays will update dynamically. Each new call you receive will change the bottom line caller display. When no call is active, the bottom line will display: No Caller.
Figure 9 Dwell Display—Caller
Controls and I ndicators—CHAPTER 3
Current Transmit Talkgroup
Current Profile
Sample Screen
Curren Transmit
alkgrou
User ID of Current Caller
Dwell Display–Received Talkgroup
If you select Received Talkgroup as your Dwell Display, the upper line of text will show the Transmit
With Received Talkgroup as yo ur Dwell Display, the Bottom Line updates dynamically to display your caller’s Talkgroup, but the Top Line is static.
Software Version OTP 5.07 M-803 Operator Manual 29
Talkgroup for the active profile. The lower line of text will show the Talkgroup of your incoming call.
Once selected, these displays will update dynamically. Each new call you receive will change the bottom line caller display. When no call is active, the bottom line will display: No Calls.
CHAPTER 3—Controls and Indicators
T
p
T
T
p
Figure 10 Dwell Display—Received Talkgroup
Sample Screen
Dwell Display–Channel
If you select Channel as your Dwell Display, the upper line of text will show the Transmit Talkgroup for the active profile. The lower line of text will show your currently tuned channel.
Once selected, these displays will update dynamically, but the only way to alter the display would be to tune in a new channel.
Figure 11 Dwell Display—Channel
Current Transmit
alkgrou
alkgroup of Incoming Caller
Sample Screen
Currently Tuned Channel
Dwell Display–No Access
No Access is not an option in the Dwell Display menu. It’s a default message your screen will display whenever your radio cannot make contact with the OpenSky net wor k.
30 M-803 Operator Manual Software Version OTP 5.07
Current Transmit
alkgrou
Controls and I ndicators—CHAPTER 3
Figure 12 Display Screen—No Access
From the No Access screen there’s no indication of whi c h choice you’ve made for Dwell Display.
Sample Screen
Radio unable to make Network connection
You can wait for the condition to clear, or, if an off­network mode of operation will temporarily suit your needs, navigate to the Mode Menu and select a conventional radio mode.
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CHAPTER 3—Controls and Indicators
32 M-803 Operator Manual Software Version OTP 5.07
Display Panel Functions—CHAPTER 4
CHAPTER 4

Display Screen Functions

Menu and Selector Keypad 34
User-Selectable Menu Operations 34
Keypad Navigation 34
Select Dwell Display 35
Select Operational Mode 36
Universal Connectivity 37
Duration of Mode Change 38
Select Profile 39
Check or Change Active Profile Status 40
Select Talkgroup 41
Check or Cha nge Active Talkgroup 41
Prioritizing a Talkgroup 43
Duration of Priority Assignments 44
Lock Out Talkgroup 44
Groups You Can Lock Out 45
Caution Regarding Profi l e Changes 48
Select Scan Mode 48
Check or Change Active Scan Mode 49
Duration of Scanning Mode Selections 50
Select Channel 51
Enable/Disable Side Tones 52
Select Brightness Setting 53
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CHAPTER 4—Display Panel Functions

Menu and Selector Keypad

Display Screen functions are launched from the Menu and Selector Keypad. Most user-selectable radio operations are conducted by using the keypad to make selections from the operations menus.

User-Selectable Menu Operations

You’ll use the keypad for mundane chores like adjusting your display scr een brightne ss, and for critical operations like establishing your operational mode and setting your active profile. Below is a list of menu options.
Keypad-Accessible Menu Operations
Set your Operations Mode:
OpenSky Trunked, Conventional, Over-the-Air Download, or Coverage
Set your Active Profile
Set your Priority Talkgroup
Lockout any Talkgroup
Set your Scanning Mode
Normal, Talkback, or No Scan
Select a Channel from the preset Channel Menu
Set your Dwell Display
Enable or Disable Audible Side Tones
Change Brightness Settin g of your Display Screen

Keypad Navigation

With a few exceptions that will be discussed in specific sections below, the same basic steps will suffice for all menu selection procedures. In general, selecting a new menu option setting is a 3-step process:
34 M-803 Operator Manual Software Version OTP 5.07
1.) Repeatedly Press the Up or Down key to cycle
through the list of available Menu headings. When the Menu you want appears in the Top line of the Display Screen . . .
2.) Repeatedly Press the Left or Right key to cycle
through the list of available options for the Menu. When the option you want appears in the Bottom line of the Display Screen . . .
3.) Press the Select button to lock in your choice. When the M-803 accepts your choice, the display
screen will revert to the user-selectable Dwell Display you’ve chosen.

Select Dwell Display

There is no specific “default screen” for the M-803. Rather, there are several user-selectable options for the categories of feedback the radio will display during operation. See the Getting Started chapter for a full discussion of your dwell display options.
Display Panel Functions—CHAPTER 4
The first line of any Dwell Display for Open Sky
If you’re happy with the dwell display when your radio Powers Up, do nothing. You only ne ed to change your Dwell D isp lay to get information the radio is not already providing.
trunked mod e operation is always the currently ac tive Transmit Talkgroup for your selected profile.
What appears in the second line, though, depends on what choice you make from the Dwell Display Menu for your default display preference.
In short, you’ll use the menu buttons to establish your own default screen, depending on whe ther you want your radio to display the current Profile, the Channel, your current Caller, or your current caller’s Talkgroup.
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CHAPTER 4—Display Panel Functions
Ø How to set your Dwell Dis p la y
Selection
1.) If the top line of your display screen shows the
Transmit Talkgroup for your selected profile, you’re ready to begin.
2.) Use the Left and Right buttons to cycle through
the Dwell Menu options in the lower line of the display screen: Profile, Caller, Channel, Received Talkgroup.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
Figure 13 Dwell Display Selection
Sample Screen
Available Dwell Display: Received Talkgroup
Component Explanation
Transmit..............
Talkgroup
Menu Option.......
The first line of any Dwell Display is the active talkgroup for your current profile.
Choose Caller, Profile, Channel or Received Talkgroup. For every call you receive, your radio will identify your caller’s talkgroup.

Select Operational Mode

The M-803 is a “soft” radio, designed to operate under a variety of software-enabled, user-selectable operational modes. Under most work conditions, you’ll
Currently Active Transmit Talkgroup for your Profile
36 M-803 Operator Manual Software Version OTP 5.07
operate your radio as a fully-networked component of the OpenSky digital network and carry on rich-featured communications with similarly networked agencies or subscribers.
At startup, your M-803 automatically selects the OpenSky Trunked Protocol (OTP) to provide the full range of features available on your digital voice and data network.
On the other hand, if your agency cooperates with
Your only indica ti o n that you have logged on to the network is the name of your Talkgroup in the Dwell Display.
several others in a multi-agency network supported by OpenSky’s IP backbone, all agencies benefit from the advantages of the network architecture whether or not they’ve migrated from older analog equipment to digital OpenSky radios.
For those occasions when you need to communicate with radios using older protocols (such as conventional FM), you can manually change your radi o’s operatin g mode.

Universal Connectivity

Display Panel Functions—CHAPTER 4
When conditions require it, you can re-configure your M-803, with a simple menu selection, to access conventional CTCSS analog FM or APCO Project 25 CAI operations. This is especially helpful when you need to communicate with users from other agencies or fleets not completely integrated with OpenSky.
The principle operating mode currently in use is
the OpenSky Trunked Protocol (OTP). Choose OTP for full-featured communications with other digital equipment connected to the OpenSky network.
From the Mode Se l ection Menu, you c an also
access OpenSky Conventional FM (OCF) with Continuous Tone Coded Squelch Syste m (CTCSS).
When your Network Administrator initiates a mid-
shift Perso nality Upgrade or Dynamic Regrouping, you’ll engage the Over-the-Air Download mode.
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CHAPTER 4—Display Panel Functions
If you stray outside the network’s strong coverage
area and require an off-network conventional radio connection, select Coverage mode to temporarily improve your capabilities.
To protect against inadvertent or too-hasty mode changes, the M-803 software will force a confirmation sequence before accepting your new selection.

Ø How to set your Operational Mode

1.) Use the Up and Down buttons to cycle through
the menu choices until Mode Menu appears.
2.) Use the Left and Right buttons to cycle through
the Mode Menu options: Trunked, Conventional,
Over the Air Download, or Coverage.
3.) Press the Select button to activate the fail-safe
Confirmation process.
4.) Use the Left and Right buttons to cycle through
the confirmation options: Confirm?Y to make the change; Confirm?N to abort the change.
5.) Press the Select button to lock in your choice.
6.) The display panel will flash the confirming
message: BOOTING and your radio will reconfigure itself to operate in the Mode you selected.

Duration of Mode Change

Mode change is a major operational commitment. It requires a Power Down and Reboot operation which
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Display Panel Functions—CHAPTER 4
A
e
the radio itself will undertake when you press the Select button to confirm a mode change.
At Power Up, your radio automatically adopts the operating mode of its previous use. Any changes you make to the mode during your shift will remain in effect until you make another selection and Reboot.
Figure 14 Operational Mode Menu
Sample Display
Menu Option: OpenSky Trunked Protocol
ctive Menu: Operational Mod
Component Explanation
Mode Menu .........
Menu Option .......

Select Profile

When you Power Up your radio at the beginning of a shift, your M-803 is provisioned by the network with a radio personality composed of as many as 16 profiles, one of which your network administ rator has designated as your Active Profile by default.
Your default profile will contain your most common talk group and as many as 16 other user groups the radio treats as “listen groups.”
Determines whether your radio will operate as conventional analog equipment, or a fully-functioning digital OpenSky radio.
When you access the Menu, the currently selected option appears in the option line. To change, scroll to a new option and press the Select button.
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CHAPTER 4—Display Panel Functions
Each of your other profiles, if any, is another group of as many as 16 more user groups, one of which is always the default Talkgroup. See the Getting Started chapter for a full discussion of user groups, profiles, listen groups, talkgroups and radio personality.
If you need access to groups not part of your active profile, you can use the Menu Selector Buttons to access the Profile menu and switch to any other pre-set
It’s a good idea to know the defau l t Talkgroup for each Profile in your Personality so you can access it easily from the Profile Menu.
menu that is part of your radio personality. You’ll have to be familiar enough with your profiles to
know which user groups are organized under each name. Or, if just want to access a new talkgroup, you can tune in the profile for which the talkgroup you want to access is the default.

Check or Change Active Profile Status

If your Dwell Display is set to Profile, your screen will display your active profile at all times. Otherwise, to see your current selection, use the Menu Selector keypad to access the Profile Menu.
To switch to a new active Profile during your work shift, access the Profile Menu from the Menu Selector keypad and make a new selection from the options.

Ø How to set your Active Profile

1.) Use the Up and Down buttons to cycle through
the Menu choices until ProfileMenu appears.
2.) Use the Left and Right buttons to cycle through
the Profile Menu options established by your Network Admini st ra to r.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
40 M-803 Operator Manual Software Version OTP 5.07
Display Panel Functions—CHAPTER 4
play
A
n
Figure 15 Profile Selection Menu
Sample Display
ctive Menu: Profile Selectio
Component Explanation
Menu Option: Sample Profile from your Personality Dwell Dis
Profile Menu........
Menu Option .......
Determines which group of up to 16 user groups will be your active Profile.
When you access the Menu, the currently selected Active Profile appears in the option line. To change, scroll to a new Profile and press the Select button.

Select T alkgroup

Only one of the up to 16 user groups in your active Profile is configured as a Talkgroup. The others, as determined by the Network Administrator, are listen groups. You will receive voice calls from the listen groups, but you can only instigate voice calls with them by assigning them Talkgroup status.
You can reply to incoming voice calls if your radio is operating in Talkback Scan Mode, but you cannot instigate these calls. See Scan Mode for more details.

Check or Change Active Talkgroup

If your Dwell Display is set to Profile, your screen will display your active profile and your Transmit Talk­group at all times. Otherwise, to see your current
Software Version OTP 5.07 M-803 Operator Manual 41
CHAPTER 4—Display Panel Functions
A
n
selection, use the Menu Selector keypad to access the Profile Menu.
To assign Talkgroup status to a new user group during your work shift, access the Talkgroup Menu from the Menu Selector keypad and make a new selection from the options.

Ø How to set your Active Talkgroup

1.) Use the Up and Down buttons to cycle through
the Menu choices until TalkGrpMenu appears.
2.) Use the Left and Right buttons to cycle through
the list of user groups in your Active Profile, as establishe d by your Network Admini strator.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
Figure 16 Talkgroup Selection Menu
Sample Display
Menu Option: Sample User Group from your Active Profile
ctive Menu: Talkgroup Selectio
Component Explanation
Talkgroup Menu.......
Determines which of up to 16 user groups will be your Talkgroup.
Menu Option.............
When you access the Menu, the currently active Talkgroup appears in the option line. To change, scroll to a new user group and press the Select button.
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Display Panel Functions—CHAPTER 4

Prioritizing a Talkgroup

At different times during your shift you may want to improve yo ur radio’s sensi tivity to incoming call s from a particula r user group. If you make no such changes during a radio use session, the Default Talkgroup for
Priority Scan is different from Talkgroup status. Even if you give a user group Priori ty Scan status, your Talkgroup is still your Talkgroup.
each profile will maintain automatic scanning priority over all other user groups in the profile.
Increasing the scanning priority of a group other than the Default Talkgroup improves your receptiveness to that group’s calls compared to all the other groups in your active profile, including the Default Talkgroup.
You may use the procedure below to establish one new priority scanning group for every profile in your radio personality. There’s no ranking order in scanning priority: one group per profile is the priority group; all other groups in the same profile are “non-priority.”
Ø How to Assign Priority to a
Talkgroup
1.) Use the Up and Down buttons to cycle through
the Menu choices until PriTGMenu appears.
2.) Your display screen shows PriTGMe nu in the
bottom line and the current Priority Scan group in the top line.
3.) Use the Left and Right buttons to cycle through
the list of user groups in your selected Profile, until the group you want to assign Priority Talkgroup status appears onscreen.
4.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
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CHAPTER 4—Display Panel Functions
Figure 17 Priority Talkgroup Menu
Sample Screen
Active Menu: Priority Talkgroup Menu
Component Explanation
Menu Option: Sample User Group from your Active Profile
Priority......................
Talkgroup Menu
Menu Option.............
When this menu is active, the Left and Right buttons will scroll you through the user groups in your selected profile.
Scroll throug h groups and use the Select button to confirm the group you wish to make your te mpo r ary Talkgroup.

Duration of Priority Assignments

If you make no priority assignments during your shift, each profile selects the Default Talkgroup as the priority scan group. When you use the Priority Scan menu to assign scanning priority to a new group, your assignment stays in effect until you change it or turn your radio off. Powering Off erases all scanning priority assignments and resets your radio to the defaults.

Lock Out Talkgroup

There are at least two ways to focus your voice communications by suppressing calls from user groups in your active profile.
No Scan. By changing your Scanning Mode to
NOSCAN you can block all non-emergency voice calls from the “listen groups” in your profile,
44 M-803 Operator Manual Software Version OTP 5.07
Display Panel Functions—CHAPTER 4
concentrating your attention entirely on your Default, Selected or Priority Talkgroup.
Lock Out. By locking out selected T a lkgroups,
you can eliminate just the background “noise” you select, focusing your scan ning resources o n just the groups whose calls you wish to track.
Emergency calls will cut through your lock-out command, but you won’t be distracted by the other voice call activity from user groups you’ve locked out, until you elect to run the menu again and remove the lock.

Groups You Can Lock Out

Active Profile. It stands to reason that only groups
in your active profile can be locked out, since they’re the only groups whose voice calls you’ll hear. The Lockout menu responds to incoming voice call activity, loading the names of calling groups into the menu as the calls are received.
Received Call Menu. If you don’t find a name
you’re looking for in the Lockout menu, either it’s not in your active profile, or you haven’t received a call from that group yet in this radio session. Until you do take a call from that group, you can’t lock them out.
To protect against inadvertent or too-hasty Lockout procedures, the M-803 software will force a confirmation sequence before accepting your new selection.

Ø How to Lock Out a Listen Group

1.) Use the Up and Down buttons to cycle through
the Menu choices until LockOutMenu appears.
2.) Your display screen shows LockOutMenu in the
bottom line and, in the top line, the name of a user group from your active profile you’ve received a voice call from since Powering Up.
Software Version OTP 5.07 M-803 Operator Manual 45
CHAPTER 4—Display Panel Functions
3.) If the word NONE appears in the top line, you
haven’t received any voice calls from user groups in this profile, so Lock Out is not an option.
4.) Use the Left and Right buttons to cycle through
the list of candidates, if any, until the user group you want to Lock Out appears onscreen.
5.) Press the Select button to activate the fail-safe
Confirmation process.
6.) Use the Left or Right button to cycle through the
confirmation options: Confirm?Y to lock out the group; Confirm?N to remove a lock.
7.) Press the Select button to confirm your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your Lockout choice.

Ø How to Unlock a Listen Group

1.) Use the Up and Down buttons to cycle through
the Menu choices until LockOutMenu appears.
2.) Your display screen shows LockOutMenu in the
bottom line and, in the top line, the name of a user group from your active profile you’ve received a voice call from since Powering Up.
3.) If the word NONE appears in the top line, you
haven’t received any voice calls from user groups in this profile, so Lock Out is not an option.
46 M-803 Operator Manual Software Version OTP 5.07
Display Panel Functions—CHAPTER 4
p
4.) Use the Left and Right buttons to cycle through
the list of candidates, if any, until the user group you want to Unlock appears onscreen.
5.) Press the Select button to activate the fail-safe
Confirmation process.
6.) Use the Left or Right button to cycle through the
confirmation options: Confirm?Y to lock out the group; Confirm?N to remove a lock.
7.) Press the Select button to confirm your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your Unlock choice.
Figure 18 Lock Out Menu
Sample Screen
Menu Option: User Groups from active
rofile that have called you this session.
Active Menu: Lockout Talkgroup
Component Explanation
Menu Option .......
As you scroll through the user groups in your active profile, notice they only appear in the Lock Menu if you
Software Version OTP 5.07 M-803 Operator Manual 47
CHAPTER 4—Display Panel Functions
have received a voice call from them since Powering Up.
Lock Out .............
Talkgroup
Both Locked-Out and Not-Locked groups appear in the Menu. You can’t confirm the status of any group except by pressing the Select button to enter the Confirmation cycle.
Caution Regarding Profile Chan ges
Talkgroup Lockout status does not survive a change of Profile. If you need to select a new Profile after taking the time to Lockout several talkgroups from your current profile, understand that making the change will Unlock all groups.
Compare your options before changing your profi le. If you can achieve your goal by temporarily assigning Priority Talkgroup status to a user group, you may be able to avoid having to lock out the same groups twice.
Select Scan Mode
Three scanning modes are available for the M-803, but only one can be active at any time. Changing your scanning mode changes the way your ra dio scans voice calls for all of the profiles in your radio personality, no matter which profile is or becomes active.
Your choice of scanning mode will broaden or narrow the span of your communications with all the listen groups in your profiles, but does not affect your interaction with your talk groups.
Your scanning mode choice will stay in effect until you change it a gain; even if you turn off your radio , your current selection will be saved until your next use.
Scan Mode Explanation
No Scanning......
48 M-803 Operator Manual Software Version OTP 5.07
Eliminates distractions. Full communications (listen and
talk) with your talk group.
Display Panel Functions—CHAPTER 4
No calls from listen groups.
Normal ..............
Scanning
Talkback............
Scanning
This is the default setting.
Network administrator has established this as the most effective configuration for everyday use.
Full communications (listen and talk) with your talk group.
Receive calls from the listen groups. Place talkback voice calls to the
most recent listen group by pressing the Push-to-talk button before the Talkback timer expires.
Full communications (listen and talk) with your talk group.
Receive calls from the listen groups.

Check or Change Active Scan Mode

The Dwell Display screens do not show active Scan Mode status. To see your current selectio n, use the Menu Selector keypad to access the Scan Mode Menu. The scan mode status displayed in the top line of the screen display is your active status.
To change scan mode during your work shift, access the Scan Mode Menu from the Menu Selector keypad and make a new selection from the options available.
To narrow your scanning list to just the talk group
in your active profile, choose No Scan from the Scan Menu.
To select the default scanning mode whi ch scans
all the listen groups in your active profile, choose Normal from the Scan Menu.
To broaden your communications r ange by
enabling talkback voice calls to your active listen groups, choose Talkback from the Scan Menu.
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CHAPTER 4—Display Panel Functions
s

Ø How to set your Scan Mode

1.) Use the Up and Down buttons to cycle through
the Menu choices until ScnModeMenu appears.
2.) Use the Left and Right buttons to cycle through
the list modes until your choice appears: Normal, Talkback or No Scan.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
Figure 19 Scan Mode Menu
Sample Display
Menu Option: One of three available Scan Mode
Active Menu: Scan Mode Menu
Component Explanation
Scan Mode Menu......
Determines whether you will scan or suppress your listen groups for incoming voice messages. Enables or disables Talkback to your most recent caller.
Menu Option.............
When you access the Menu, the currently active Scan Mode appears in the option line. To change, scroll to a new mode and press the Select button.
Duration of Scanning Mode Selections
Scanning Mode selections survive Power Down. At startup, your radio will default to the scanning mode of your last use. Any selec ti on yo u ma ke duri n g your shi ft will remain in effect until you make a new selection from the Scan Mode menu.
50 M-803 Operator Manual Software Version OTP 5.07

Select Channel

A
e
If your reception is poor or you are repeatedly denied channel access, you can manually change the radio to a different c hannel. When you use the menu buttons to choose Channel, the M-803 adjusts to show you the first of the available channels from which you may choose.

Ø How to Change the Channel

1.) Use the Up and Down buttons to cycle through
the Menu choices until ChannelMenu appears.
2.) Use the Left and Right buttons to cycle through
the pre-sets until the channel you want appears onscreen.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice. If your active Dwell Display is C hannel, your newly selected channel name will appear in the display panel (along with the active talkgroup) as soon as it tunes in. Otherwise, you’ll have to access the Channel Menu again to check your channel.
Display Panel Functions—CHAPTER 4
Figure 20 Channel Change Menu
Sample Screen
Menu Option:
vailabl
Active Menu: Channel Selection
Component Explanation
Channel Menu..........
Software Version OTP 5.07 M-803 Operator Manual 51
Used to tune in any available pre­set channel from the menu.
CHAPTER 4—Display Panel Functions
Menu Option.............
When you access the Menu, the first available channel appears in the option line. To change, scroll through the pre-sets and confirm your choice with the Select button.

Enable/Disable Side Tones

Your radio sounds confirming tones when you press the Menu or Selector buttons. Most users find this audible confirmation helpful in navigating the menus in the Display Panel.
You can disable the side tones, if you wish, by
Turning off your radio does not affect your Side Tone setting, which will be saved for your next use.
navigating t o the Side Tone menu, and selecting Off. To re-enable the tones, you’ll need to navigate back to the same menu (without the benefit of side tones) and this time select On.
For covert operations, it is important to be able to turn off the audible side tones that occur when you press a Menu or Selector button. For safety’s sake, though, you probably won’t want to shut your radio down for the time you’re planning to go covert.
To temporarily disable the tones that could expose your presence and position, use the Menu Selector buttons to access the Side Tone Menu. There are only two choices in the Side Tone Menu (On, Off).
If your radio is operating properly but you don’t hear tones when you press the Menu or Select buttons, your side tones are probably disabled. Access the Side Tone menu and reset your Tones to On.

Ø How to Enable or Disable Side Tones

1.) Use the Up and Down buttons to cycle through
the Menu choices until SideMenu appears.
2.) Use the Left or Right button to change the
display from On to Off or vice versa.
3.) Press the Select button to lock in your choice.
52 M-803 Operator Manual Software Version OTP 5.07
Display Panel Functions—CHAPTER 4
A
Your selected Dwell Display will appear as soon as the M-803 accepts your choice.
Figure 21 Side Tones Menu
Sample Screen
Menu Option: Side Tones On or Off
ctive Menu: SideTones On/Off
Component Explanation
Side Tones Menu......
Menu Option ............
Used to tune in any available pre­set channel from the menu.
When you access the Menu, the screen will indicate whether your sidetones are On or Off. To change the setting, press the Left or Right button and confirm your choice with the Select button.

Select Brightness Setting

Your M-803 uses a front-panel light sensor to adjust the display to ambient light conditions. However, the Brightness Selection give s users some control over the screen display.
There are only three choices in the Brightness Menu. You’ll use the menu in high- or low-light situations to make the screen one step Brighter or Dimmer than the current (Nominal) setting.

Ø How to Change Screen Brightness

1.) Use the Up and Down buttons to cycle through
the Menu choices until Bright Menu appears.
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CHAPTER 4—Display Panel Functions
g
s
2.) Use the Left button to change the display from
Nominal to Dimmer, or the Right button to change the display to Brighter.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice. Your display screen should be immediately brighter or dimmer as you requested.
Figure 22 Brightness Selection Menu
Brightness Selection Menu
Component Explanation
Menu Option: Display Screen Bri
Active Menu: Brightness Selection
htnes
Brightness Menu.......
Used to change screen display one increment brighter or dimmer than the automatic (nominal) setting.
Menu Option.............
When you access the Menu, the screen will indicate Nominal. Change to Brighter or Dimmer, and confirm your choice with the Select button.
54 M-803 Operator Manual Software Version OTP 5.07
CHAPTER 5

Basic Radio Operations

Power Up 56
Log-On 57
Self-Test 58
Power Down 59
Set Volume 60
Voice Calls 61
Talkback Calls 63
Emergency Communications 64
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CHAPTER 5—Basic Radio Operations
play

Power Up

Power Up, Power Down, and Volume functions are all handled from the Power Button/Volume Dial, a front panel component.

Ø How to Turn Your Radio On

1.) Push the Power Button/Volume Dial. Your
radio’s vacuum fluorescent display panel will glow to indicate Power Up.
2.) If required by the radio network, use the Mobile
Data Terminal (MDT) Keyboard to enter your User ID. If your system doesn’t require a Log-On, the radio proceeds through the Startup Sequence.
Power Button / Volume Dial
3.) Wait through the Startup Sequence, which lasts
approximately 10 seconds.
During this time your radio is provisioned with your customized radio persona lity, emergency conduct and user specifications, all designed for your specific needs by the Network Administrator and prompted by your User ID.
4.) When provisioning is complete, the M-803 will
disp lay yo u r l a s t-sa v e d Dwell Display in the front panel Display Screen.
56 M-803 Operator Manual Software Version OTP 5.07
User-Selected Dwell Dis
Current Volume Setting

Log-On

Basic Radio Operations—CH A PTER 5
If the radio network requires a Log-On, pushing the Power Button/Volume Dial will supply power to your radio, but will not connect it to the OpenSky network. Your radio will not boot and provision itself until you use the MDT keyboard to log on with your User ID.
Even if you want to use your radio for non-network traditional RF communications, you’ll still need to log on to the network first, then select Talkaround Mode to work off-network.

Ø How to Log On to the Network

1.) Push the Power Button/Volume Dial. Your
radio’s vacuum fluorescent display panel will glow to indicate Power Up.
2.) If required by the radio network, use the Mobile
Data Terminal (MDT) Keyboard to enter your User ID. If your system doesn’t require a Log-On, the radio proceeds through the Startup Sequence.
Power Button / Volume Dial
3.) Wait through the Startup Sequence, which lasts
approximately 10 seconds.
During this time your radio is provisioned with your customized radio persona lity, emergency conduct and user specifications, all designed for your specific needs by the Network Administrator and prompted by your User ID.
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CHAPTER 5—Basic Radio Operations
4.) When provisioning is complete, the M-803 will
disp lay yo u r l a s t-sa v e d Dwell Display in the front panel Display Screen.

Self-Test

After Power Up and your M-803 radio undergoes a multi-function automatic Boot procedure.
Your radio is “provisioned” with your radio
personality: as many as 16 radio profiles are downloaded to your equipment from the network in response to your User ID.
Emergenc y behavior is provisioned along with
each profile.
User-Selected Dwell Display
Current Volume Setting
Your radio conducts a d i agnostic Built-In Self-Test
(BIST).
The Self-Test is a battery of hardware diagnostic tests on the internal components of the Mobile Radio Unit. All processor and memory elements, interfaces, connectivity elements and RF functionalities are diagnosed for operational integrity.

Ø How to Read the Self-Tes t Resu lts

1.) The BIST (Built-In Self-Test) is automatic on
Power Up.
2.) . . . BIST PASS. If all components, elements,
interfaces and functionalities test OK, the M-803 will deliver a PASS message to the front panel Display Screen.
58 M-803 Operator Manual Software Version OTP 5.07
Basic Radio Operations—CH A PTER 5
n
e
Built-I Self Test: Passed all tests
3.) The PASS message remains onscreen br iefly, then
yields to the last-saved Dwell Display for the logged-on radio subscriber.
4.) . . . BIST FAIL. If a radio component, element,
interface or functionality fails the diagnostic test, the M-803 will deliver a FAIL message to the front panel Display Screen.
Self Test Failure Message
Self-Test Error Cod
5.) . . .If the Self-Test detects a Fatal operational
error, the FAIL message and Error Code will remain on screen. Log-on will not proceed.
6.) . . .If the Self-Test reveals a Nonfatal failure, the
FAIL message and Error Code remain onscreen long enough for the user to record, then yields to the last-saved Dwell Display for the logged-on User ID.
7.) To force a re-test, or to get another look at the
Error Code, first Power Down, then Power Up.

Power Down

Power Up, Power Down, and Volume functions are all handled from the Power Button/Volume Dial, a front panel component.
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CHAPTER 5—Basic Radio Operations

Ø How to Turn Your Radio Of f

1.) Push the Power Button/Volume Dial. Your
radio’s vacuum fluorescent display panel will fade to darkness to indicate Power Down.
2.) Several user-selected radio settings, inc luding your
current Dwell Display, will survive the Power Down procedure.
3.) At your next Power Up, thes e saved setti ngs will
automatically default, along with your network personality settings.
Power Button / Volume Dial

Set Volume

Power Up, Power Down, and Volume functions are all handled from the Power Button/Volume Dial, a front panel component.
Your radio’s front panel Display Screen always displays the current volume, whether you are receiving an active call or not.

Ø How to Change the Volume

1.) Rotate the Power Button/Volume Dial clockwise
to increase the Speaker Volume, counter­clockwise to decrease the Speaker Volume.
60 M-803 Operator Manual Software Version OTP 5.07
2.) Whether you are receiving a voice call or not, your
e

Voice Calls

As soon as your radio completes the Startup/Log On/Provision/Self-Test sequence and goes live on the OpenSky network, you’ll begin to hear voice calls from the talk and listen groups in your active profile.
Basic Radio Operations—CH A PTER 5
Power Button / Volume Dial
volume setting change will immediately reflect in the front panel display screen Speaker Volume indicator.
Speaker Volum Indicator
No action is required on your part, but the following list details how your radio responds to incoming voice messages.

Ø How to Take a Voice Call

1.) . . . If your Dwell Display is set to Caller, your
front panel display screen shows the User ID of the incoming caller.
2.) . . . If your Dwell Display is set to Received
Talkgroup, your front panel display screen shows the talkgroup to which your incoming caller belongs.
3.) . . . If your Dwell Display is set to Profile or
Channel, your front panel display screen shows the data appropriate to those displays, but provides no clue to the identity of your incoming caller.
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CHAPTER 5—Basic Radio Operations
h
4.) Regardless of your active Dwell Display, the
display screen’s Signal Strength Indicator glows brightly for a strong signal from the incoming caller, dimly for a weak signal.
The steps for making a voice call are similar to those for a conventional portable radio.

Ø How to Make a Voice Call

1.) First, if you haven’t alrea dy, Power Up your radio
by pressing the Power Button/Volume Dial to Power Up, a n d Log On wit h your User I D. (See How to Turn Your Radio On.)
2.) Check the Signal Strength indicator light for
clearance. If the light is burning brightly, you are receiving a call.
Signal Strengt Indicator
3.) Wait for clearance if necessary. A single End of
Message tone will indicate the end of your
incoming call.
4.) Depress and hold the Push-to-Talk button on your
remote hand-held microphone and speak normally. For maximum clarity, hold the transceiver approximately 1½ inches from your mouth.
5.) Release the Push-to-Talk button to terminate your
outgoing voice call.

Ø What the Beeping Means

If the network is clear, you won’t hear anything when you depress the Push-to-Talk button. Just hold the button down and talk, then release the button.
1.) If you hear 3 rapid beeps, the network is too busy
to transmit or even queue your call. You cannot place a call in this situation. Wait a few seconds and try your call again.
62 M-803 Operator Manual Software Version OTP 5.07
2.) If you hear a 3-beep sequence (Medium tone /
Medium tone / High tone), the network has acknowledged your request for clearance and placed your call in the queue.
When the network becomes available, the radio will automatically transmit for 10 seconds and the radio will alert you that the network is clear for your call.
Depress and hold the Push-to-Talk button to place your call.

Talkback Calls

With your radio in Talkback Scanning mode, you can respond to voice calls from listen groups in your active profile.
You can’t initiate outgoing voice calls to just any listen group, but you can immediately respond to any incoming call by pressing your Press-to-Talk button before the Talkback timer expires. Your call will go out only to the most recent listen group you heard.
Basic Radio Operations—CH A PTER 5

Ø How to Place a Talkback Call

Set your radio to Talkback Scanning mode.
1.) When you hear an incoming listen group call you
want to respond to, press the Push-to-Talk button.
2.) . . . If you respond before the expiration of the
talkback timer, your call will transmit as a voice call to the most recent listen group you heard.
3.) . . . If you fail to beat the timer, your call will
transmit to the talk group for your active profile.
4.) . . . If you repeatedly exceed the talkback time
limit, consider asking the network administrator to extend the time allowed.
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CHAPTER 5—Basic Radio Operations

Emergency Com munications

Your radio can send out an Alert or place Voice Calls over the entire network in an emergency. OpenSky handles Emergency Calls and Alerts with the very highest pri ority, givi ng you and the p eople you serve access to the help you need no matter how much traffic the networ k i s handling.

Ø How to Place an Emergency Call

1.) Press the orange Emergency Button on your radio
to send an emergency alert. You’ll find the button just to the right of the 5-button Menu and Selector keypad (see the Figure: Front Panel Components).
2.) You’ll hear nothing, but other users will hear the
Emergency Alert signal, a distinctive 3-tone burst of sound.
3.) At the same time, the network enables an
Emergency Talk Group.
4.) Press the Push-to-Talk button to send your voice
out over the emergency talk group.
5.) All the radios in the Emergency Talk Group will
hear your call and see the emergency talk group displayed on their radio, overriding any other displays that may have been active there.
6.) When your emergency ends, press and hol d the
orange Emergency Button a second time to clear the emergency alert and call. Only you, the user who initiated the alert, can clear it.
64 M-803 Operator Manual Software Version OTP 5.07
CHAPTER 6

Advanced Radio Operations

Fine-Tuning Your Personality 66
Dynamic Regrouping 66
Talkaround Mode 67
Troubleshooting 68
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CHAPTER 6—Advanced Radio Operations

Fine-Tuning Your Personality

Access to as many as 16 profiles within your pre­determined radio personality gives you tremendous responsiveness to the chan ging needs of your workda y.
What’s more, within each profile, the flexibility of the IP-protocol OpenSky network makes it possible to fine-tune your radio ’s sensitivity to incoming voice calls by changing the Scanning Priority of specific user groups, changing radio scanning modes and channels, even locking out the incoming voice calls of entire user groups.
In some ways, these sensitivity tunings are analogous to operations familiar to users of analog equipment.

Dynamic Regrouping

In the event of an emergency, the network admini­strator will determine what radio users should be formed into an ad hoc talk group to respond to the emergent conditions.
The administrator will edit the personalities of the affected users to include an emergency profile, then direct the affected users to re-register with the network to receive their edited personalities.
In response, affected users Log-On with their User
ID numbers to receive their edited personalities.
During Log-on, subscriber equipment will default
to the dynamically regrouped profile.
In all likelihood, one profile per personality will be
reserved for Dynamic Regrouping use.
66 M-803 Operator Manual Software Version OTP 5.07
Ø How to Re-Provision fo r an
Emergency
1.) “Punch In” your User ID when directed by the
Network Admini st ra to r.
2.) Re-registration will default to Dynamically-
Regrouped Emergency P rofile.

Talkaround Mode

In the absence of a nearby Base Station, in deep woods or valleys, or in other weak coverage areas, it is possible to work “off-network” by selecting Talkaround Mode and placing radio-to-radio calls in conventiona l FM or Project 25 Digita l Common Air Interface modes.
VTac Vehicul ar Tactical Network
Also useful for supporting a local tactical operation, Talkaround is a digital air link protocol that allows unit-to-unit communication without talk paths to the base site and switching center.
Advanced Radio Operations—CHAPTER 6

Ø How to Place Talkaround Calls

1.) Use the Up and Down buttons to cycle through
the Menu choices until Talk Menu appears.
2.) Use the Left and Right buttons to cycle through
the Talkaround Menu options established by your Network Admini st ra to r.
3.) Press the Select button to lock in your choice. Your selected Dwell Display will appear as soon as the
M-803 accepts your choice.
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CHAPTER 6—Advanced Radio Operations

T roubleshooting

If your radio does not operate properly, check the chart below for likely causes. For additional assistance, contact a qualified service technician.
Symptom Likely Cause Solution
Radio will not turn on
No audio
Poor audio
Dislodged power connector.
In-line fuse is blown. Replace the in-line fuse.
Your radio may be too hot. Allow the radio to cool or
Speaker volume is muted. Increase the volume level.
Speaker cable is not connected.
You are in a poor coverage area or not on the network.
Press in the power connector on the rear of the radio.
operate the radio in a cooler environment. Report this failure to authorized technician.
Press in the speaker cable on the rear of the radio.
Move to a better coverage area using the signal quality indicator on the display as a guide, or use Mode Menu to enable conventional FM rad io operation.
Speaker cable is loose. Press in the speaker cable
on the rear of the redio.
Antenna connection is loose.
68 M-803 Operator Manual Software Version OTP 5.07
Ensure that the antenna is properly connected to the radio.
Advanced Radio Operations—CHAPTER 6
Symptom Likely Cause Solution
Poor display visibility
Screen displays: No Access
Radio will not transmit
Radio unexpectedly Powers Down
Ambient light sensor is obstructed.
Your radio is out-of-range or cannot connect with the OpenSky net wor k.
Your radio may be too hot. The M-803 will cease transmitting if it exceeds an operational temperature threshold.
Your radio may be experiencing low voltage. The M-803 will cease to transmit when voltage drops below 9 volts.
Your radio may be experiencing very low voltage. The M-803 automatically powers down when voltage drops below
4.5 volts.
Clear obstruction and give sensor a clear path to ambient light.
Move to a better coverage area using the signal quality indicator on the display as a guide, or use Mode Menu to enable conventional FM rad io operation.
Let the radio cool before attempting to transmit. Report this failure to authorized technician.
Reduce the load on your vehicle’s battery and try again. Report this failure to authorized technician.
Reduce the load on your vehicle’s power supply and try again. Report this failure to authorized technician.
Software Version OTP 5.07 M-803 Operator Manual 69
Control Head Unit—CHAPTER 7
CHAPTER 7

CH-103 Control Head

Features and Components 72
Equipment Configurations 73
Dash-Mount Mobile Configuration 73
Dash-Mount Mobile with CH-103 74
Trunk-Mount Mobile Configuration 76
Vtac Vehicular Tactical Network 77
Full or Shared Radio Controls 78
Single Control Head 79
Multiple Control Heads 79
Independe nt Functions 79
Shared and Arbitrated Functions 80
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CHAPTER 7—Control Head Unit
Features and Components
The OpenSky CH-103 provides remote access for voice and data, as well as remote user interfaces to control M-803 mobile radios and VTac Vehicular Tactical Networks.
OpenSky’s digital interface allows easy connection to mobile radios, vehicular repeaters, control stations,
On a large vehicle with several Control Heads, each will share access to a single M-803 mobile radio. See Multiple Control Head for more details.
mobile data terminals and CAN peripherals to support the public safety mission.
Local or Broa dcast Intercom
The control head can also function as an intercom by broadcasting received voice calls to all consoles, to specific installed consoles, or by allowing users to bypass the network to communicate with each other.
Full Feature Set
Because the OpenSky M-803 is the core component of any dash- or trunk-mounted configuration, each Control Head can access the full range of features supported by the radio it controls.
Front Panel Int er face
The front panel of the CH-103 is the front panel of an M-803 mobile radio, with the same display screen, menu buttons and controls as described elsewhere in this manual. See Front Panel Components for more details.
Rear Panel Peripheral Interface
The CH-103 provides interfaces for analog and digital peripherals, similar but not identical to those supported by the M-803 mobile radio. See Peripheral Interface for more details.
72 M-803 Operator Manual Software Version OTP 5.07
Control Head Unit—CHAPTER 7

Equipment Configurations

The M-803 mobile radio supports multiple control heads for vehicles that require more than one display screen and user interface.
Dash Mount Mobile
The CH-103 Cont rol Head unit brings the convenienc e of th e us er interface and optional peripherals to several locations in a vehicle without the expense of
In the most basic configuration, the M-803 radio and user interface are combined in one dash-mounted hardware case without additional control heads.
Dash Mount with Control Heads
The dash-mount radio can support up to five control heads at different locations on the vehicle, each with its own display screen and interfaces for handsets, mobile data terminals and other peripherals.
Trunk Mount Mo bile
The M-803 can also be remotely trunk-mounted without a front-panel user interface. This configuration supports up to five control heads placed throughout the vehicle.
Vehicular Tactical Network
With the addition of a trunk-mounted duplexer and signal repeater, the M-803 functions as a local cell on the OpenSky network and also provides off-network scene-of-incident coverage for voice-to-voice communication.

Dash-Mount Mobile Configuration

The first several chapters of this manual describe the basic dash-mount mobile configuration for the M-803.
In this common standalone installation radio functions, front-panel user controls and back-panel peripheral interfaces are combined in a single hardware case.
Figure 23 Dash-Mount Mobile
Sample Installation
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CHAPTER 7—Control Head Unit
Component Explanation
Duplexer....................
M-803 supports optional duplexer for Full Duplex operation.
MDT..........................
M-803 supports optional Mobile Data Terminal for full-feature graphics.

Dash-Mount Mobile with CH-103

The dash-mounted M-803 described above can be expanded for larger or special needs vehicles with the addition of up to five optional Control Heads
The control heads provide shared voice access to the M-803, not additional r adi o personalities or channels.
(CH-103). As in the standalone installation, the dash-mou nted
mobile supports an optional duplexer for full duplex operation and a mobile data terminal for full-feature graphics. Voice operations to and from the multiple control heads share a single mobile radio RF channel.
In addition, each Control Head provides the following components and capabilities:
Remote Shared Voice access to the M-803,
Remote Control for the M-803,
74 M-803 Operator Manual Software Version OTP 5.07
Control Head Unit—CHAPTER 7
Complete common User Interface including
display screen, preset buttons, and menu/selector keypad,
Individual Audio controls,
I/O port for wired Microphone/Speaker,
Alternate interface site for Mobile Data Terminal
(limit one MDT per installation).
Figure 24 Dash-Mount with Control Heads
Sample Installation
Component Explanation
Duplexer ...................
M-803 supports optional duplexer for Full Duplex operation.
MDT..........................
M-803 supports optional Mobile Data Terminal for full-feature graphics.
CH-103......................
Each Control Head supports mic/speaker and an alternate site for MDT installation.
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CHAPTER 7—Control Head Unit

Trunk-Mount Mobile Configuration

For trunk-mount installation, the M-803 is installed without a front panel user interface. Instead, one or as
The control heads provide shared voice access to the M-803, not additional r adi o personalities or frequencies.
many as five Control Head units throughout the vehicle provide remote control for radio functions.
The M-803 supports an optional duplexer for full duplex operation.Voice operations to and from multiple control heads share a single mobile radio RF channel.
Figure 25 Trunk-Mount Mobile
Sample Installation
Component Explanation
Duplexer....................
M-803 supports optional duplexer for Full Duplex operation.
MDT..........................
Each CH-103 provides interface for optional Mobile Data
Terminal (MDT).
CH-103 ......................
Each Control Head supports a microphone and speaker.
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Control Head Unit—CHAPTER 7
In addition, each Control Head provides the following components and capabilities:
Remote Shared Voice access to the M-803,
Remote Control for the M-803,
Complete common User Interface including
display screen, preset buttons, and menu/selector keypad,
Individual Audio controls,
I/O port for wired Microphone/Speaker,
Alternate interface site for Mobile Data Terminal
(limit one MDT per installation).

VTac Vehicular Tactical Network

The Vehicular Tactical Network is described in detail in the following chapter.
For a trunk-mounted VTac installation, the M-803 is installed without a user interface. Instead, as many as five Control Head units at locations throughout t he
The OpenSky M-803 is the core component of the Vehicular Tactical Network.
Your VTac radio will perform all the best functions of the M-803 plus additional coverage enhancements.
vehicle provide remote control for all radio functions. VTac includes a duplexer for Full Duplex operation
and a voice repeater t o provide off-network sc ene-of­incident coverage.
In short, the VTac supports a rich array of radio communications features, including:
All M-803 voice and data radi o functions,
Network Extension support for portables in weak
coverage areas or in-building use,
Scene of Incident support for voice-to-voice off-
network communications,
Full Duplex operation,
Up to five control heads and one mobile data
terminals.
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CHAPTER 7—Control Head Unit
Figure 26 VTac Vehicular Tactical Network
Sample Installation
Component Explanation
VTac ..........................
MDT..........................
CH-103 ......................
Three hardware components mounted together make up the VTac array.
Each CH-103 provides interface for optional Mobile Data Terminal (MDT).
Each Control Head supports a microphone and speaker.

Full or Shared Radio Controls

The Control Head unit provides remote voice, data, and control paths to the M-803 for one or as many as five control heads per installation.
In an installation with a Single Control Head, the sole CH-103 has full control of the mobile radio as well as the front panel interface and local speaker.
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In an installation with Multiple Control Heads, communications functions are generally shared among all control heads, while local interface functions like volume and brightnes s are indepe ndently controlled for each CH-103.

Single Control Head

In Single Control Head mode, the CH-103 is the sole user interface for the trunk-mounted mobile and the full features of the front panel and local speaker.
Features operated by the Control Head unit in Single Control mode include:
Speaker volume
Screen brightness
Mode selection
Voice group selection
Emergenc y mode
Control Head Unit—CHAPTER 7
Since the radio is controlled by a single control head, there is no need for the mobile radio unit to arbitrate control of radio functions.

Multiple Control Heads

The Multiple Control Head configuration organizes operational functions into an Independent group and a Shared group.
Independent Functions
Each Control Head in a multi-head installation can be adjusted for local conditions without affecting the settings on the other control heads.
Independent control head functions include:
Speaker volume
Screen brightness
Side tones on or off
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CHAPTER 7—Control Head Unit
Shared and Arbitrated Functions
Examples of shared functions which will affect the operational status of all connected control heads:
The general rule for shared functions is: any control head can change shared functions for all control heads.
Power Up and Log-On
Mode selection
Voice group selection
Emergenc y mode
For shared functions, the action of one user affects the operation of shared mobile radio unit functions. If one user changes from Trunked mode to Scene of Incide nt mode, for example, all control heads will update to the same mode.
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CHAPTER 8

VT ac Vehicular T actical Network

Vehicular Tactical Network 82
Backward and Forward Compatibility 82
Operational Modes 83
“A Base Station in a Trunk” 83
Hardware Components 84
VTac Mobile Unit 84
VTac Base Unit 85
RF Combiner 85
Extended Coverage 85
User Interaction 85
Scene of Incident 86
User Interaction 86
Public Safety Hardened 86
GPS Option 87
Connectivity Interface 87
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81
8181
CHAPTER 8—VTac Vehicular Tactical Network

Vehicular T actical Network

The Vehicular Tactical Network (VTac-803) is an 800 MHz software-based digital mobile network repeater for extending networ k coverage to portable radios, providing scene-of-incident capability and the full feature set of an M-803 mobile radio.
VTac supports the OpenSky communication protocol in the 800 MHz SMR and NPSPAC frequency bands with a high performance data modem that gateways both voice and data to the OpenSky wide area wireless data network.
More capable than a stand-alone M-803, the VTac-803 is a hybrid product that combines several hardware components into a multi-use communications device to extend the capabilities of a movable Base Station wherever you position your vehicle.
Backward and Forward Compatibility
The software-based architecture allows the VTac-803 to be programmed for a variety of modulation techniques, providing legacy support and guarding against obsolescence.
VTac can host several applications simultaneously to support users running the OpenSky digital protocol, Conventional FM with CTCSS, or Project 25 Phase 1.
Over-the-Air Programmability
For agencies engaged in an analog-to-digital transition, The VTac-803 can function with existing analog infrastructure today and, when the time is right, receive over-the-air field reprogramming for a virtually seamless transition to fully digital communicatio ns without replacing equipment.
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Operational Modes

By combining the functions of several components, the VTac-803 operates in a variety of modes:
Mobile Radio. This is the default mode of
operation activated at Power-Up. Under ordinary conditions, the VTac-803 is a fully-functioning subscriber device performing all the functions of an M-803 radio on the OpenSky network;
Extended Coverage. In weak coverage areas, the
VTac Base Station can be activated to act as a mobile base station, extending OpenSky network connectivity to portable radios in the vicinity. The VTac continues to provide normal mobile radio functions in Extended Coverage mod e;
Scene-of-Incident. For radios on the OpenSky
network, VTac acts as a voice repeater in OpenSky Trunked mode, supporting two concurrent voice calls between subscribers at the scene;
Mutual Aid. For radios not on the OpenSky
network, VTac can still provide a limited set of communication capabilities, acting in Scene-of­Incident mode as a public safety “micro-cell” to connect users in a conventional FM Mutual Aid network.
VTac Vehicular Tactical Network —CHAPTER 8

“A Base Station in a Trunk”

Most commonly, VTac is a trunk-mounted installation of components that adds the most important functions of a single-channel OpenSky Base Station to the radio functions of an M-803 Mobile.
The VTac-803 is designed specifically with the Public Safety user in mind. Its digital interface easily connects to peripheral devices including the Control Head and CAN Peripherals that are often used to support the Public Safety mission.
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CHAPTER 8—VTac Vehicular Tactical Network

Hardware Components

The VTac-803 is a 4-piece array of hardware components consisting of:
An M-803 Full Duplex Trunk Mounted Mobile
Radio Unit (MRU), also known in this configuration as the VTac Mobile;
A VTac Base Unit. This component brings the
communications interface and transceiver functionalities of an OpenSky Base Station D CX to the trunk of a patrol car;
An RF combiner;
A CH-103 Control Head located in the passenger
compartment of the vehicle controls the three trunk-mounted components.
Additional Control Head units may be located elsewhere in larger vehicles for user convenience.
VTac Mobile Unit
The VTac Mobile provides the connection between the OpenSky network, operator, mobile data terminal, and the VTac Base Unit.
As a mobile radio, it operates like a standard­installation M-803, providing network communications for a single vehicle through one or more CH-103 Control Head Units.
In a VTac installation, the VTac Mobile is connected to the VTac Base Unit by a serial cable that conducts voice and data between the two components.
One-Button Activation
Powering Up the VTac Mobile automatically enables all the connected hardware components of the VTac array. Unless they’re needed, though, the RF Combiner and VTac Base Unit stand by in a quiescent state until called on for use.
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VTac Base Unit
The VTac Base Unit has the same transceiver and digital controller components as the OpenSky Base Station DCX, but in a VTac installation these components only operate as needed, when enabled by the subscriber.
When Extended Coverage is required, the VTac Base Unit provides the extended connection between the network and portable radios in the vicinity.
When Scene-of-Incident coverage is required, the VTac Base Unit provides communication between subscriber devices at the scene.
RF Combiner
The RF Combiner provides the VTac Network with the ability to create an ad hoc talk group for Scene-of­Incident emergency communications.

Extended Coverage

VTac Vehicular Tactical Network —CHAPTER 8
The VTac-803 can be used as a mobile base station to ensure that portable radios are connected to the network at all times, in-building, or out.
Subscribers with VTac equipment can enable Extended Coverage mode before leaving their vehicles to enter buildings or spotty coverage areas, thereby assuring signal strength to networked portables.
User Interaction
Extended Coverage requires subscriber activation. Without interaction the subscriber’s mobile and portable radios are served by the nearest network cell.
By selecting Extended Coverage mode, the subscriber activates the VTac Base Unit as a local cell on the OpenSky net wor k.
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CHAPTER 8—VTac Vehicular Tactical Network

Scene of Incident

The VTac-803 can also be a vital link at the scene of an incident, providing a repeater among OpenSky sub­scriber radios, or alternatively, among radios in a Mutual Aid network that connects different radio types, whether they subscribe to OpenSky or not.
In Scene-of-Incident (SOI) Mode, OpenSky Network communications are sacrificed to enable full emer­gency connectivity between cooperating agencies at the scene. The tradeoff of network isolation provides increased channel capacity while relieving traffic for other subscribers on the network.
In Scene of Incident mode with OpenSky Trunking, VTac supports multiple talk groups. Like a tower site base station, it continues to support agency-specific talk groups while at the same time creating an ad hoc talkgroup for units at the scene.
User Interaction
Scene-of-Incident coverage is not automatic. The VTac-equipped subscriber will make an on-scene command decision to manually activate SOI mode and become the local cell for all calls on an ad hoc network.
In addition, all portable radio users must select SOI mode and tune to the VTac frequency to join the emergency net wo rk.

Public Safety Hardened

The VTac-803 is designed specifically with the Public Safety user in mind.
The case is manufactured with enhanced environmental hardening making the VTac compliant with MIL-STD-810 for temperature, altitude, solar radiation, rain, humidity, salt, fog, sand, dust, vibration, and shock, ensuring that it will perform under the wide range of public safety environmental conditions.
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GPS Option

The OpenSky VTac-803 can be supplied with an optional embedded GPS receiver. GPS data can be reported either over-the-air to remote dispatch positions or to a local terminal connected directly to the mobile radio.
Additionally the I/O connector provides a serial GPS port which outputs GPS NEMA messages. Reporting characteristics can be configured remotely and can be event driven.
GPS functions are transparent to the subscriber and require no user interaction.

Connectivity Interface

The VR-803 supports a variety of interfaces with its flexible interconnect. The M-803 and VRB connect to the RF Combiner via the antenna ports located on the rear panel.
VTac Vehicular Tactical Network —CHAPTER 8
Peripheral Support
The rear panel also provides interfaces for both analog and digital peripherals.
The serial RS-232 port operates in asynchronous ASCII mode for configuration and control and switches to Serial Line Internet Protocol (SLIP) mode for data communication between the fixed network and a mobile computer or terminal device.
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CHAPTER 8—VTac Vehicular Tactical Network
Figure 27 VTac Connectors
Rear Panel Schematic
I/O Connector
The I/O connector provides interfaces for an external 10 Watt speaker and duplexer support. Additionally, the I/O connector provides access to a GPS serial port which outputs NEMA messages.
Power Supply
The power supply interface is designed to power the VR-803 from the vehicle car battery.
CAN Peripheral Bus
The rear panel also provides access to an industry standard 1 Mbit Controller Area Network (CAN) 2.0B bus for reconfigurability and peripheral support.
This allows the VR-803 to be controlled by up to five Control Head (CH-103) units and connect with public address and other CAN peripherals.
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