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Contents
- 1. Users Manual
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Users Manual

OpenSky Digital Radio 
Portable 
Radio 
Model P800 
Users Manual

  P800 User’s Manual     1 
CHAPTER 1 
Welcome to the OpenSky Network 
Chapter 1 
Safety Notices  3 
Notices to the User and  Safety Training Information  3 
Occupational Safety Guidelines and  Safety Training 
Information 5 
OpenSky Overview  7 
Internet Protocol (IP) Network  7 
Integrated Voice and Data  8 
Digitized Voice, Text and Graphics  8 
Multi-Agency Coverage  10 
Promotes Interagency Cooperation  10 
Connectivity with Legacy Equipment  11 
Improved Coverage and Signal Strength  11 
Better Peak-Time Performance  12 
Software-Configured Device  12 
Software Upgradeable  13 

Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     3 
Safety Notices 
IMPORTANT INFORMATION ON SAFE AND 
OPTIMAL OPERATION. READ THIS BEFORE 
USING YOUR P800 PORTABLE RADIO. 
Notices to the User and  
Safety Training Information 
WARNING Your P800 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 the ways to minimize such hazards. 
This radio is NOT intended for use by the “General 
Population” in an uncontrolled environment. 
The OpenSky P800 portable radio has been tested and 
complies with the FCC RF exposure limits for 
“Occupational Use Only.” In addition, your P-800 
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 Guidelines 
for Human Exposure to Radio Frequency 
Electromagnetic Fields. 
•  American National Standards Institute (C95.1–
1992), IEEE Standard for Safety Levels with 
Respect to Human Exposure to Radio Frequency 
Electromagnetic Fields, 3kHz to 300 GHz. 
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. 
CHAPTER 1—Advanced Radio Operations 
4     P800 User’s Manual 
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.). 
This equipment generates and uses radio frequency 
energy and may cause harmful interference to radio 
communications if not installed and used in accordance 
with the instructions. However, there is no guarantee 
that the interference will not occur in a particular 
installation. If this equipment does cause harmful 
interference to radio or television reception, the user is 
encouraged to try to correct the interference by one or 
more of the following measures: 
•  Re-orient or relocate the receiving antenna. 
•  Increase the separation between the equipment and 
the receiver. 
•  Consult a service center for technical assistance. 

Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     5 
Occupational Safety Guidelines and  
Safety Training Information 
CAUTION. To ensure that your exposure to RF 
electromagnetic energy is within the FCC allowable 
limits for occupational use, always adhere to the 
guidelines below. 
Your P800 portable radio may transmits using the 
integral antenna. When the radio is ON, it receives and 
also sends out radio frequency (RF) signals. 
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 P800 Portable Radio complies with the FCC 
guidelines for Occupational / Controlled exposure to RF 
electromagnetic fields, as measured by the specific absorption 
rate (SAR). To assure optimal performance and make sure 
human exposure to RF electromagnetic energy is within the 
FCC guidelines, always adhere to the following: 
1.  Do not hold the radio less than 1 inch from your 
body, especially your face, ears, or eyes, while 
transmitting. 
2.  When using the radio, angle the antenna away 
from your body and do not allow the antenna to 
touch your body during transmission. 
3.  The push-to-talk button should only be depressed 
when intending to send a voice message. 
4.  The radio should only be used for necessary work 
related communications. 
5.  The radio should only be used by authorized and 
trained personnel and should not be operated by 
children. 
6.  Do not operate your radio or replace/charge 
batteries in explosive atmospheres (gases, dust, 
fumes, etc.) or near explosive basking caps. Your 
radio should be turned off when installing and 
removing batteries. 
CHAPTER 1—Advanced Radio Operations 
6     P800 User’s Manual 
7.  Do not attempt any unauthorized modification to 
the radio. Changes or modifications to the radio 
may cause harmful interference. Service of the 
radio should only be performed by qualified 
personnel. 
8.  Always use M/A-COM authorized accessories 
(antennas, batteries, belt clips, speakers/mic, 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. 
Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     7 
OpenSky Overview 
M/A-COM’s OpenSky is a suite of 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 a P800 to replace a 
conventional analog voice-only radio, you’ll 
particularly appreciate the integrated voice and 
data capabilities of the all-digital OpenSky 
Portable equipment.  
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.  
IP Backbone 
Using Internet Protocol (IP) as a network backbone for 
end-to-end user applications, OpenSky integrates 
digital voice and packet data into 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 OpenSky network with 
your pre-configured user profile will place you in 
contact with the members of a software-defined talk 
group consisting of the set of users you customarily 
have to contact.  
CHAPTER 1—Advanced Radio Operations 
8     P800 User’s Manual 
•  Unlike your conventional FM radio, your P800 
is a node on an Internet-Protocol (IP) network with 
its own unique IP address.  
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 
and messages intended for your IP address will 
find their way across the network 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.  
Integrated Voice and Data 
Your P800 Portable 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 the same wireless 
network to a single handheld device. 
Digitized Voice, Text and Graphics 
By converting analog voice waves to digital 
information before transmitting them over the network, 
OpenSky technology makes it possible for portable 
radio users to send and receive voice transmissions at 
the same time they receive and view data on the radio’s 
display screen. 

Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     9 
For complex graphics, 
interface a PC through 
your radio’s RS-232 serial 
port. 
With a P800 in your vehicle, or by your side, you’ll 
be able to scroll through complex instructions and 
driving directions displayed on an external terminal 
device, or view on-screen emergency warnings while at 
the same time carrying on conversations with 
dispatchers or other mobile operators in your coverage 
area. 
•  With OpenSky and the P800 you’ll not only use 
the same device to receive data and carry on 
conversations, you won’t even have to switch 
between radio modes to do both simultaneously. 
RS-232 Interface 
For heavy data transfers or displaying graphics, your 
P800 is equipped with an industry-standard RS-232 
interface serial port for connecting a portable PC or any 
of an increasing array of third-party display and key-
entry devices.  
A data programming cable is required in order to use 
this feature. 

CHAPTER 1—Advanced Radio Operations 
10     P800 User’s Manual 
Multi-Agency Coverage 
OpenSky is scalable, and designed to accommodate a 
virtually unlimited number of 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 a Carrier Company’s fleet can share 
one large national network.  
•  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. 
Promotes Interagency Cooperation 
See full discussions of Talk 
Group, User Group and 
User Profile elsewhere in 
this manual 
In fact, the system is best suited to multi-agency public 
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 your Network 
Your personal voice profile defines who you 
commonly communicate with.  Each user needs only 
one authorized radio to connect seamlessly to many 
independent agencies or cooperating dispatch 
networks. 
Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     11 
•  There’s no need to monitor multiple frequencies on 
several pieces of equipment to maintain contact. 
•  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 network. 
Connectivity with Legacy Equipment 
The all-digital, end-to-end IP OpenSky Intranet even 
provides support for legacy equipment and protocols 
both digital and analog.  
Along with supplying voice and data to your P800 
portable 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. 
Improved Coverage and Signal Strength 
Part of OpenSky’s scalability is its ability to 
accommodate as many base stations as your coverage 
area requires to provide robust voice and data 
transmissions wherever your route may extend within 
the network.  
Cell Sites 
OpenSky cell sites automatically extend coverage into 
otherwise hard-to-reach areas and connect back into the 
network.  
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 through your coverage area.  

CHAPTER 1—Advanced Radio Operations 
12     P800 User’s Manual 
 Instead of depending on choices from a central 
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.  
Better Peak-Time Performance 
OpenSky’s digital trunking architecture provides 
enormous advantages over conventional FM operation. 
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.  
Software-Configured Device 
Your P800 is a “soft” radio. Its functions are 
determined by OpenSky software applications, in much 
the same way computer hardware can be used for 
different applications.  
Unlike older analog radios you may have used, with 
their hardware-based proprietary functions, your P800 
converts voice waves into digital information before it 
transmits to the network, providing noise-free audio 
transmission and reception. 
Make any radio in the 
system “your radio” by 
logging on with your 
identity code. 
What’s more, because each user in the network has a 
unique identity code, you can activate your identity 
from any radio connected to the network. Any radio 
from your agency’s stockpile of radio hardware can 
become “your” radio and log on as part of your talk 
group and profile. 
Welcome to the OpenSky Network—CHAPTER 1 
  P800 User’s Manual     13 
Software Upgradeable 
As with computer hardware, your portable radio 
equipment is upgradeable each time the OpenSky 
software enables a new feature or operational 
enhancement.  
Communications protocols, radio features, and user 
profiles can be changed easily and transparently to the 
user, during a shift or during “sign-on” at the beginning 
of a new shift. 
CHAPTER 1—Advanced Radio Operations 
14     P800 User’s Manual 
Enhanced Digital Features 
The all-digital network and OpenSky’s digital trunking 
features also enable a rich array of network 
enhancements unthinkable over historical FM 
broadcast systems.  
Voice grouping (into talk groups, user groups, and 
profiles) is probably the most obvious advantage to 
individual users.  Other essential and enhanced feature 
sets include: 
•  Priority scanning 
•  Multiple priority levels 
•  Pre-emptive emergency calls 
•  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. 

  P800 User’s Manual     15 
CHAPTER 2 
Network Organization 
Chapter 2 
Network Organization  15 
Your Voice Feature Personality           17 
User Groups  18 
Profiles         19 
Radio Personality  21 
Terminology 23 
  P800 User’s Manual     16 

Network Organization — CHAPTER 2 
  P800 User’s Manual     17 
Your Voice Feature Personality 
When you activate your radio at the beginning of a 
shift your unique identity code is used to sign on, your 
radio is assigned its IP address and “provisioned” with 
a radio personality that identifies other users on the 
network with whom you are most likely to need to 
communicate by voice.  If you need to modify your 
identity code bring your P800 to your network 
administrator. 
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. 
Profiles are assigned by 
your network administrator 
to match your 
communication needs. 
You’ll have access only to 
those users who fall within 
your profile. 
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. 
Global Voice Profile 
Profile 1 is known as the Global Voice Group.  It is 
always active scanning for inbound calls.  It is usually 
allocated to a “Fleet” operation allowing users to 
receive broadcast calls independently of the active 
profile. 
There can be only one active user profile 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. 

Network Organization — CHAPTER 2 
  P800 User’s Manual     18 
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, 
these users work together by tuning to the same 
channel.  
•  In the IP-backbone OpenSky digital network, 
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. 
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.  
Network capacity is the 
only limitation on the 
number of users that can 
make up a group. 
Dispatchers maintain contact with all members of the 
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. 
The Figure below illustrates a small user group of four 
P800 portable radios. 
Figure 1 
User Group 
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. 
Each radio assigned 
to an individual user 

Network Organization — CHAPTER 2 
  P800 User’s Manual     19 
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 within 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 likely monitor 
the other groups for “listen-only” access to all other 
calls within the profile. But this is only one possible 
configuration.  
Members of a talk group 
are not necessarily 
scanning the calls of the 
same listen groups. 
A user group might just as easily include officers from 
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 talk-
group 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 
many as 16 profiles by the network administrator. At 
any time during a network session, users can select the 
profile that suits their needs with a simple twist of the 
Profile Selector knob. The Active Profile Number is 
displayed in the radio’s menu Display and Control 
Area. 

Network Organization — CHAPTER 2 
  P800 User’s Manual     20 
Figure 2 
___________________________________________ 
User Profile 
User Group 1  User Group 2  User Group 3  User Group 16 
                   . . .      
Talk 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 establish 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. 
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 
configuration of the user groups you can monitor at any 
time by clicking your profile selector knob to the 
appropriate profile. 
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.” 
Talk Group U
p
 to 15 Listen Grou
p
s 
Network Organization — CHAPTER 2 
  P800 User’s Manual     21 
Scan Modes 
There are three scanning options that include: 
Scan none:  Scanning is disabled. 
Scan normal:  Scan all listen groups in your profile.           
PTT results in a response in your default 
talk group. 
Scan talk back:  Scan all listen groups in your profile 
within a time out period.  PTT results 
in a response in the active listen group. 
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 
shift and sign on with your unique identity code, your 
radio is assigned its IP address and “provisioned” with 
a radio personality that identifies 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. 

Network Organization — CHAPTER 2 
  P800 User’s Manual     22 
Figure 3 
____________________________________
___ 
Radio Personality 
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.  
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, your personality also 
establishes strict pre-determined priority sequences to 
suppress the calls that would distract you from the calls 
you’re more likely to need. 
Network Organization — CHAPTER 2 
  P800 User’s Manual     23 
Terminology 
Most of the terms and concepts you’ll need to 
communicate with your dispatcher, network 
administrator and other users have parallels in legacy 
analog networks. 
Digital  Compare to Analog 
User Group ........ FM radio channel 
Profile ................. Bank of FM radio channels 
Talk Group ........ “Push-to-talk” connection with 
users tuned to the same channel 
Listen Group...... “Listen-only” connection to a bank 
of radio channels 
Profile ................. Talk privileges on one channel 
while monitoring an entire bank of 
channels 
Network Organization — CHAPTER 2 
  P800 User’s Manual     24 

  P800 User’s Manual     25 
CHAPTER 3 
Getting Started 
Chapter 3 
Before Your First Shift  27 
Radio Controls  27 
Front Panel Components  28 
Left Panel Components  28 
Top Panel Components  29 
Right Panel Components  32 
Menu and Status Choices  35 
Primary Display  36 
Getting Started — CHAPTER 3 
  P800 User’s Manual     26 
Getting Started — CHAPTER 3 
  P800 User’s Manual     27 
Before Your First Shift 
If you’re already familiar with portable radio functions 
and the “profile and personality” architecture of an all-
digital network, you’ll find the features and controls of 
your new P800 to be logically arranged and easy to 
understand.  
But if you’re new to digital radio service, and 
especially if you’re migrating to OpenSky from an FM 
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 work day. 
Radio Controls 
Examine your radio thoroughly and familiarize 
yourself with the location and operation of its controls 
and indicators before studying their functions. The 
following diagrams will identify the components of 
your equipment one panel at a time. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     28 
Front Panel Components 
The front panel of your P-801T includes the Speaker 
element and the Microphone. The microphone is a tiny 
rectangle in the upper left-hand corner of the speaker 
element. Be careful not to obstruct the microphone 
while talking. 
Figure 1 
Front Panel Components 
Component Function 
Microphone.............. Picks up your voice for 
dispatcher and other users on 
the network to hear  
Speaker Element...... Allows you to hear voice calls 
Left Panel Components 
The left-side panel of your P800 houses the Emergency 
button, the Push-to-Talk button, and two Select buttons 
for choosing among performance menu items when 
those items are displayed in the LCD Display on the 
radio’s top panel. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     29 
Figure 2 
Left Panel Components 
Component Function 
Emergency Button..... Sends an emergency alert over 
the network and initiates an 
emergency call. Also used to 
cancel an emergency alert.  
Push-to-Talk ..............
Button 
Turns the radio microphone on 
to transmit a voice call. 
Select Buttons ............ Used with the Menu buttons 
on the radio’s top panel. When 
the menu heading you want 
appears in the display panel, 
use the Select buttons to scroll 
“up and down” through the 
choices available. 
Top Panel Components 
The top panel of your P800 houses the LED display 
panel, indicator light and antenna connector, plus four 
control components: the Power/Volume switch, the 
Profile Selector, Menu buttons and the Toggle switch. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     30 
Figure 3 
Top Panel Components 
Component Function 
Power/Volume .........
Switch 
Turns the radio on and off. 
Controls the volume of calls 
coming into the speaker. 
Antenna ....................
Connector 
Mounting location for your 
removable antenna 
Indicator Light ........ Turns red and blinks when you 
are in transmit mode. Turns 
green and blinks when you 
receive a call. 
Profile Selector ........
Dial 
Sets one of 16 profiles as the 
active profile. 
Antenna Connector 
Profile Selecto
r
To
gg
le 
Power/Volume 
Dis
p
la
y
Menu 
Buttons
Indicator
 Light 
Getting Started — CHAPTER 3 
  P800 User’s Manual     31 
Display Panel ........... Provides profile and user 
group information. When the 
menu or select buttons are 
pressed, the menu display 
temporarily changes to show 
the selected menu screen. If no 
buttons are pressed, the 
display returns to the primary 
menu. 
Menu Buttons .......... These allow the user to cycle 
“left and right” through the 
menu of radio functions. 
Responding to the buttons, 
menu headings will appear in 
the display panel. Once you 
find the menu you want, use 
the Select buttons on the 
radio’s left panel to scroll “up 
and down” through the 
choices available in that menu. 
Toggle Switch........... Turns display, indicator light, 
and side tones on or off. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     32 
Right Panel Components 
The right-side panel of your P-801T houses the 
Universal connector you’ll use to attach an external 
microphone or speaker.  Use this to connect to an 
external data terminal using an RS-232 adapter cable. 
Figure 4 
Right Panel Components 

Getting Started — CHAPTER 3 
  P800 User’s Manual     33 
The Display Panel Overview 
The radio display shows your active user group and 
profile, menu selections and status information. The 
display is divided into two major elements:  
•  Menu Display and Control Area (the top 2/3 of the 
panel) and, 
•  Status Area (the bottom 1/3 of the panel) 
The figure below reflects a composite condition you’ll 
never see on your display panel. It displays all the 
components of the default display, plus all the Status 
Area indicators at once, not a natural condition. In 
ordinary use, you’ll see just one mode indicator in the 
Status Area at any time, and only for 10 seconds after 
you make menu selections, before the display reverts to 
the default screen. 
Figure 5 
Display Panel Elements 
Menu Display 
and Control 
 Status  
 Area 
 Scanning Menu 
 Active Connection 
 Channel Chan
g
e 
 Lockout Indicato
r
 Active Profile Indicato
r
Getting Started — CHAPTER 3 
  P800 User’s Manual     34 
Component Function 
Menu Display...........
Default Condition 
Provides profile and user 
group information under 
ordinary operating conditions 
Menu Display...........
Menu Selection 
When Menu or Select buttons 
are pressed, this area changes 
to show selections from the 
menus. These displays, and 
any related Status Area 
indicators, stay onscreen for 
10 seconds before the entire 
display reverts to the default 
condition. 
Status Area............... Arranged across the bottom of 
the display panel are five 
fields for displaying hints to 
remind you what menu you’re 
accessing. Unless you’re using 
your menus, many of these 
fields will be empty. 
Status Area...............
Activity Indicator 
When your radio is on and 
connected to the OpenSky 
network, the : appears in the 
status area. The number of 
your active profile, if any, will 
appear after this symbol. Or, if 
you have engaged Priority 
Scan, a P will display while 
the radio scrolls through the 
user groups. 
Status Area...............
Profile Number 
The 01 in the figure above 
indicates the active profile for 
this user is Profile 01. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     35 
Component Function 
Status Area...............
Scanning Mode 
When you activate the 
Scanning Mode menu, SCN 
will appear in the Status Area. 
In this condition, you can 
scroll through your scanning 
mode choices in the display 
area above. 
Status Area...............
Channel Change 
When you activate the Active 
Radio Channel menu, MON 
will appear in the status area. 
In this condition, pressing the 
Select buttons will display 
available channels in the 
display area above.  
Status Area...............
Lockout Indicator 
When you select the Lockout 
Menu, LO will appear in the 
Status Area. In this condition, 
you’ll be able to scroll through 
profile names and select those 
you want to lock out. 
Menu and Status Choices 
You’ll use your top panel Menu Buttons to scroll 
through the menu choices for changing your radio’s 
status, then fine-tune your selections by using the left 
panel Selector Buttons to choose from the available 
options within each menu. 
The Profile Selector, not 
the Menu Buttons, is the 
component for changing 
your active profile 
The column headings in the figure below are the 
primary menus accessible directly from your Menu 
buttons. Entries in the columns below represent the sort 
of menu items you might find when using the Selector 
buttons to scroll through the primary menus. 
Your network administrator will organize the Priority 
Scan, Channels, and Lock Out menus to match your 
particular needs, so you won’t be distracted by 
irrelevant options.  

Getting Started — CHAPTER 3 
  P800 User’s Manual     36 
Figure 6 
Primary/Secondary Menu Loop 
Priority 
Scan 
Scan 
Mode 
Channel Side 
Tone 
Bright
-ness 
Mode 
Display 
Change 
Mode 
Lock Out 
POLICE 1 
POLICE 2 
FIRE 1 
. . . 
EMS 5 
SC NORM 
SC NONE 
TLKBK 
OT 460 
OT 470 
OT 480 
. . . 
OT 990 
SIDE ON 
SIDEOFF  
BRGHT 1 
BRGHT 2 
BRGHT 3 
OTP 418 
OTP 313 
. . . 
SEL2CNG POLICE 1 
POLICE 2 
FIRE 1 
. . . 
EMS 5 
When you’ve navigated to the secondary menu item 
you want to activate, do nothing. The radio will take 
your inactivity as a confirmation that you have made 
your choice and act accordingly. After a 10-second 
delay, your choice is confirmed and your screen will 
return to the default display.  
Primary Display 
After you turn on the radio and the startup sequence 
finishes, the radio will try to register with the network 
using its last user ID.  If successful, the display shows 
the active profile, talk group and menu selections. 
Unless you need to change any of the active settings, 
you can go right to work when you see this display. 
This primary display is the default screen your radio 
will return to after you use the menu and selector 
buttons to change or review your active settings. 
Default is automatic. After your last button-push, and a 
10-second delay, the radio will clear your final 
selection and return to the Primary display. 

Getting Started — CHAPTER 3 
  P800 User’s Manual     37 
Figure 7 
Primary Display (Default Screen) 
 Component Explanation 
To see the other user 
groups in your active 
profile, you’ll use the 
menu and selector buttons 
to scroll through the 
Priority Scan menu. 
Talk Group............... 
Your profile (identified above 
as 01) may contain as many as 
16 user groups. For each 
profile, only one user group is 
configured as your talk group. 
The default screen shows the 
active talk group in the menu 
display and control area. 
Profile Number ........  Your network administrator 
can configure your radio 
personality with up to 16 
distinct profiles. The default 
screen shows the active 
profile number in the status 
area. 
Talk Group 
Profile Numbe
r
Getting Started — CHAPTER 3 
  P800 User’s Manual     38 

                                           P800 User’s Manual  39 
CHAPTER 4 
Display Panel Functions 
Chapter 4 
Menu and Selector Buttons  41 
Priority Scan  42 
Scan Mode  43 
Channel Change  44 
Side Tone  45 
Brightness Control  46 
Mode Display  47 
Change Mode  48 
Lock Out   49 
Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  40 
Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  41 
Menu and Selector Buttons 
Most Display Panel functions are launched from the 
Menu and Selector buttons. You’ll use your top panel 
Menu Buttons to scroll through the menu choices for 
changing your radio’s status, then fine-tune your 
selections by using the left panel Selector Buttons to 
choose from the available options within each menu. 
See the Figure: Primary/Secondary Menu Loop for a 
map of the menu choices. 
Selecting a new menu setting is a 3-step process: 
1.)  Press either top panel menu button to enter the 
Primary Menu loop. Use the left or right menu 
buttons to scroll through the selections. 
2.)  When you find the appropriate menu, press either 
left-panel selector button to enter the menu. Use 
the top or bottom buttons to scroll through the 
selections. 
3.)  When you find the appropriate selection, do 
nothing. After a 10-second delay, your P800 will 
accept your entry as your final selection, clear the 
screen, and return to the default screen. 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  42 
Priority Scan 
When you use the menu buttons to choose Priority 
Scan, the P800 scrolls through the available user 
groups in your currently selected profile and allows 
user selection of the appropriate group as your priority 
scan user group.   
NOTE: Use of Talk-Back Scan will allow the radio to return 
a call on the same talk-group as an in-bound call was just 
received on. See SCAN MODE overleaf. 
Figure 1 
Priority Scan Menu 
Component Explanation 
Priority Scan ............
User Group 
The priority scan user group 
will display for 10 seconds, 
then the menu display will 
revert to the default screen. 
Priority Scan ............
Indicator 
The priority scan indicator P 
will appear in the status area 
while the radio scans the 
available user groups. 
Priority Scan 
User Group 
Priorit
y
 Scan Indicato
r

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  43 
Scan Mode 
When you use the menu buttons to choose Scan Mode, 
the display area adjusts to show you the first of three 
available scan modes: None, Normal, or Talkback.  
Use the left-panel Selector buttons to scroll through the 
choices, then wait for the radio to accept your choice. 
When the default screen appears in your display, your 
choice has been activated. 
Figure 2 
Scan Mode Menu 
Component Explanation 
Chosen ......................
Scan Mode 
The scan mode you select 
(None, Normal, or Talkback) 
will appear in the display area 
for 10 seconds, then the menu 
display will revert to the 
default screen. 
Scan Menu................
Indicator 
The scan menu indicator SCN 
will appear in the status area 
while you scroll through and 
select your scanning mode. 
Chosen  
Scan Mode 
Scan Menu 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  44 
Channel Change 
When you use the menu buttons to choose Channel, the 
P800 adjusts to show you the first of the available 
channels from which you may choose.  
Use the left-panel Selector buttons to scroll through the 
choices, then wait for the radio to accept your choice. 
When the default screen appears in your display, your 
choice has been activated. 
Figure 3 
Channel Change Menu 
Component 
Explanation 
Site Name .................
Your selected channel will 
appear in the display area for 
10 seconds, then revert to the 
default display. 
Site Name  
(This is an arbitrary
5-character name 
for a radio site) 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  45 
Side Tone 
There are only two choices in the Side Tone Menu 
(Side Tone ON, Side Tone OFF). Use this function to 
activate or de-activate the audible beeps that occur 
when you press a Menu or Selector button. 
First use the top panel menu buttons to scroll to the 
Side Tone menu, then press either left-panel selector 
button to toggle between SIDE ON and SIDEOFF, then 
wait for the radio to accept your choice. When the 
default screen appears in your display, your choice has 
been activated. 
Figure 4 
Side Tone Menu 
Component Explanation 
Side Tone..................
Your choice of Side Tones ON 
or OFF will appear in the 
display area for 10 seconds, 
then revert to the default 
display. 
Side Tones ON 
or OFF, 
depending on 
y
our selection 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  46 
Brightness Control 
There are only three choices in the Brightness Menu. 
You’ll use the menu in high- or low-light situations to 
change the brightness of  back-lighting for your display 
panel and key-pad. 
First use the top panel menu buttons to scroll to the 
Brightness menu, then press either left-panel selector 
button to scroll through the choices BRGHT 1, 
BRGHT 2 and BRGHT 3, then wait for the radio to 
accept your choice. When the default screen appears in 
your display, your choice has been activated. 
Figure 5 
Brightness Menu 
Component Explanation 
Brightness Level ......
The Brightness level you 
select for your display panel  
(3 is the brightest; 1 the 
dimmest) will appear in the 
display area for 10 seconds, 
then the menu display will 
revert to the default screen. 
Brightness Level
of Dis
p
la
y
 Panel

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  47 
Mode Display 
The Mode Menu is a “view-only” menu with only one 
active entry at a time. Its function is to display the 
name and revision number of the software your radio is 
running. As a safeguard against accidentally choosing 
the wrong software, you’ll need to deliberately choose 
the Change Mode menu and scroll through the options 
available in that menu to make a software change. 
You’ll need only the top-panel Menu buttons to display 
your active software. Just scroll through the menu until 
your current mode is displayed in the panel. 
Figure 6 
Mode Menu (Current Software) 
Component Explanation 
Active Software........
This “view-only” information 
will appear in the display area 
for 10 seconds, then the menu 
display will revert to the 
default screen. 
Active 
Software 
Name and 
Version 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  48 
Change Mode 
You’ll use this mode to change the type or revision 
number of the software it runs. The most appropriate 
software for your use is automatically loaded with your 
other configuration specs whenever you turn on your 
radio. To see what software you’re running currently, 
use the Menu buttons to scroll to the “view-only” 
Mode menu display. 
If you need to run software other than what the Mode 
menu shows, continue to scroll to the Change Mode 
menu (screen display: SEL2CNG). Once you’re in the 
Change Mode, use the left-panel Selector buttons to 
scroll through the list of available alternative software 
versions.  
A detailed procedure for changing the mode of your 
radio can be found in Chapter 6. 
Figure 7 
Change Mode Menu 
Component Explanation 
“Select to  .................
Change” Mode 
This is the menu heading 
you’ll select to launch your 
radio into the Mode Change 
menu sequence. 
From here, you’ll use the left-
panel Selector buttons to 
choose another software 
mode. 
“Select to 
Change” 
Mode 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  49 
Lock Out 
You’ll use the Lock Out menu to prevent you from 
hearing non-emergency voice calls from user groups 
you select. Supervisory and 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. 
Use the top-panel Menu buttons to display the Lock 
Out menu, then use the left-panel Selector buttons to 
scroll through the list of available user groups in your 
active profile.  
Lockout is a “toggle-type” 
condition. Re-select a 
locked out group to remove 
the lock. 
Already locked-out user groups are marked by the 
lockout indicator LO in the display panel (see figure 
below). To lock out a user group not so marked, display 
that group in the display panel and wait until the radio 
accepts your selection and returns to the default 
display. To lock out another group, return to the Lock 
Out menu and make a new selection. 

Display Panel Functions – Chapter 4 
                                           P800 User’s Manual  50 
Figure 8 
Lock Out Menu 
Component Explanation 
Locked Out ..............
User Group 
As you scroll through the user 
groups in your active profile, 
locked out groups are marked by 
the indicator LO. 
Lock Out ..................
Indicator 
Unlike other Status area indicators 
that stay lit while the menu is active, 
the Lock Out indicator is only 
visible when the user group in the 
display is currently locked out, not 
visible when the selected group is 
not locked out. 
Locked Out 
User Group 
Lock Out 

                                               P800 User’s Manual  51 
CHAPTER 5 
Basic Radio Operation 
Chapter 5 
Power Switch and Volume  53 
Disabling Lights and Side Tones  54 
Voice Calls  56 
Enable and Disable Side Tones  60 
Adjusting Display Brightness  62 
Changing Your Active Profile  63 
Emergency Communications  65 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  52 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  53 
Power Switch and Volume 
Power ON, Power OFF, and VOLUME functions are all handled 
from the Power/Volume Switch, a top panel component. 
 How to Turn Your Radio On 
1.) Rotate the Power/Volume switch clockwise until it clicks. 
2.)  Wait through the Startup Sequence, which lasts 
approximately 5 seconds. During this time your radio is 
provisioned with your radio personality and current user 
specifications. 
3.) The 
: in the display panel indicates the end of the startup 
sequence and your live connection to the OpenSky network. 
4.) Turn the Power/Volume switch clockwise to increase the 
volume; counterclockwise to decrease the volume. 
 How to Turn Your Radio Off 
1.) Rotate the Power/Volume switch counter-clockwise until it 
clicks. 
2.) Your Display Panel displays SHUTDWN while the radio 
runs through its shutdown sequence. The operating mode of 
your radio is saved into network memory and recalled on 
the next start-up. 
Power/Volume 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  54 
Disabling Lights and Side Tones 
For covert operations, it is important to be able to turn off 
the radio’s display lights and side tones. For safety’s sake, 
though, you probably won’t want to shut your radio down 
for the time you’re planning to go covert.  
Turning off your radio does 
not affect your Toggle 
Switch setting, which will 
be saved for your next use.  
To temporarily disable the lights and sounds that could 
inadvertently expose your presence and position, flip 
the Toggle Switch, a top panel component. Another flip 
of the same switch will bring your display and tones 
back into operation. 
 How to Go Covert 
•  Push the Toggle Switch to the right until it snaps into 
position. 
•  The Display Panel will go dark, the Indicator light will 
turn off, and the Side Tones (the audible beeps you 
hear when you use the menu buttons) will be disabled. 
Indicator Light Disabled 
Toggle 
Switch 
Display Panel and 
Keyboard back-lighting is 
disabled 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  55 
If you’ve been conducting covert operations and are ready 
to re-enable your radio’s lights, display screen and side 
tones for ordinary use, a simple flip of the Toggle Switch 
will return the P800 to full function. A “covert” radio looks 
like a “powered-off” radio. But re-enabling your functions 
has immediate results. You won’t have to wait through the 
startup sequence and your radio will not be re-provisioned 
when you flip the toggle to re-enable your lights and tones. 
 How to Enable Lights and Tones 
•  Push the Toggle Switch to the left until it snaps into 
position. 
•  The Display Panel will brighten, the Indicator light 
will turn on, and the Side Tones (the audible beeps 
you hear when you use the menu buttons) will be re-
enabled. 
•  To test your side tones, press a Menu button and 
listen for the confirming tone. 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  56 
Voice Calls 
As soon as your radio completes the startup sequence and 
is live on the OpenSky network, you’ll begin to hear voice 
calls from the talk and listen groups in your active profile. 
No action is required on your part, but the following list 
details how your radio responds to incoming voice 
messages. 
 Initial Network Registration 
1.)  If the radio has never been registered on your 
network, it will attempt to use a default User ID, if 
one is available. 
2.)  If the radio has been previously registered on the 
network, it will automatically attempt to re-register 
with the same User ID and Password as previously 
used.  Once registered, the Default Profile Name will 
be shown on the display panel.   
3.)  If registration fails, the message NOT REG will flash 
on the display. 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  57 
4.)  If registration fails, does not have a default, a 
previously used ID, or if you want to enter a new user 
ID bring your P800 to your network administrator to 
be updated. 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  58 
 How to Take a Voice Call 
1.)  First, if you haven’t already, power up your radio by 
rotating the Power/Volume switch clockwise until it 
clicks. (See How to Turn Your Radio On.) 
2.) Your radio Display Panel flashes a user group to 
identify the incoming caller. 
3.) The Indicator Light turns green and blinks 
throughout the call. 
4.)  At the end of the call, you will hear a single End of 
Message tone. 
The steps for making a voice call with your P800 are 
similar to those for a conventional portable radio. 
 How to Make a Voice Call 
1.)  First, if you haven’t already, power up your radio by 
rotating the Power/Volume switch clockwise until it 
clicks. (See How to Turn Your Radio On.) 
2.) Check the Indicator Light for clearance. If the light is 
dark, you are clear to talk. If the light is blinking 
green, you are receiving a call. 
Indicator 
Blinks Green while you are receiving a call.

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  59 
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 and speak 
normally. For maximum clarity, hold the transceiver 
such that the microphone is approximately 1½ inches 
from your mouth. 
5.) Release the Push-to-Talk button to terminate your 
outgoing voice call. 
 What the Beeping Means 
1.)  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. 
2.)  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. 
3.)  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 
Indicator light will blink red.  
The network can now accept your call. Depress and 
hold the Push-to-Talk button and speak. 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  60 
Enable and 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. 
Turning off your radio does 
not affect your Side Tone 
setting, which will be saved 
for your next use.  
You can disable the side tones, if you wish, by 
navigating to the Side Tone menu, and selecting 
SIDEOFF. 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 SIDE ON. 
 How to Disable Side Tones 
1.) Press either Menu button and continue to press until 
the Side Tone menu appears. 
2.) The Current Condition will appear in the Display 
Panel. The figure above indicates that your side tones 
are ON. 
3.) Press either Select button until the Display Panel 
shows SIDEOFF. 
4.)  No further action is required. Your radio accepts your 
choice and, after a short delay, reverts to the default 
screen. 
If your radio is operating as normal, but you don’t hear 
confirming tones when you navigate the menus, most 
likely your Side Tones are disabled.  
Shows current 
status of Side 
Tones 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  61 
 How to Enable Side Tones 
1.) Press either Menu button and continue to press until 
the Side Tone menu appears. 
2.) The Current Condition will appear in the Display 
Panel. The figure above indicates that your side tones 
are ON. 
3.) Press either Select button until the Display Panel 
shows SIDE OFF. 
4.)  No further action is required. Your radio accepts your 
choice and, after a short delay, reverts to the default 
screen. 
 How to Undo your selection 
If you’ve made a selection in error, or immediately change 
your mind, you have a few seconds to undo your selection 
before it takes effect. 
1.)  Immediately press either Menu button. 
2.)  Your Display panel confirms that you are back in the 
Side Tone menu. 
3.) Use either Select button to change your selection. 
If pressing the Menu button does not launch you back into 
the Side Tone menu, you haven’t acted quickly enough to 
Undo your choice. Wait approximately 10 seconds for the 
selection process to clear the radio, then scroll through the 
menu until SIDE ON or SIDEOFF appears in the screen. 
Shows 
current 
status of  
Side Tones 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  62 
Adjusting Display Brightness 
The brightness of your backlighting for the LCD panel and 
keypad can be adjusted to any of three levels as the 
ambient brightness of your environment changes. 
Brightness is a menu item, accessible from the Menu 
buttons. 
 How To Adjust Brightness 
1.)  Press a Menu button until the brightness menu shows 
in the Display panel. 
2.) The Current Condition will appear in the Display 
Panel. The figure above indicates that your radio is 
operating at the lowest level of brightness. To make 
the display brighter, choose BRGHT 2 or BRGHT 3. 
3.)  Press the upper Select button to increase brightness. 
Press the lower Select button to decrease brightness. 
4.)  No further action is required. Your radio accepts your 
choice and, after a short delay, reverts to the default 
screen. 
 How to Undo your Brightness Choice 
If you’ve made a selection in error, or immediately change 
your mind, you have a few seconds to undo your selection 
before it takes effect. 
5.)  Immediately press either Menu button. 
6.)  Your Display panel confirms that you are back in the 
Brightness menu. 
7.) Use either Select button to change your selection. 
If pressing the Menu button does not launch you back into 
the Brightness menu, you haven’t acted quickly enough to 
Undo your choice. Wait approximately 10 seconds for the 
Shows 
current 
Brightness 
Turning off your radio
does not affect you
r
Brightness setting,
which will be saved fo
r
your next use.

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  63 
selection process to clear the radio, then scroll through the 
menu until the Brightness menu appears. 
Changing Your Active Profile 
During the Startup sequence, your radio is configured with 
an entire radio personality, including as many as 16 
Profiles, one of which your network administrator 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.”  
PERSONALITY 
OVERRIDE. 
The position of your Profile 
Selector dial will override 
the default profile selection 
your radio makes on 
startup.  
If at any time you need access to groups not loaded into 
your active profile, you can switch to any other profile 
in your radio personality. Profile selection is not a 
menu item. Instead, the 16-position Profile Selector 
dial, a top panel component, gives you much faster 
access to your bank of profiles. 
 How to Choose Another Profile 
You’ll have to be familiar enough with your profiles to 
recognize them by number, or by the active “talk group” 
for each profile. 
1.) Turn the Profile selector directly to the profile number 
of your choice, or browse through the choices until the 
talk group you need appears in the Display panel. 

Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  64 
16-Position Profile Selector 
Default Talk Grou
p
 Active Profile
2.) Your new Active Profile appears in the Status area of 
the Display panel. The number following the : symbol 
identifies the profile you’ve selected. 
3.) The default Talk group for the active profile is 
indicated in the Menu display and control area. 
4.)  Once you’ve dialed a profile, it remains your active 
profile selection until you dial another, even if you 
turn off your radio. The position of the dial when you 
Power On will override the profile selected for you 
during the startup sequence. 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  65 
Emergency Communications 
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 priority, 
giving you and the people you serve access to the help you 
need no matter how much traffic the network is handling. 
 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 
above the Push-to-Talk button on the left panel (see 
the Figure: Left 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, your dispatcher must 
clear the emergency call. 
Basic Radio Operation – Chapter 5 
                                               P800 User’s Manual  66 

                                        P800 User’s Manual    67  
CHAPTER 6 
Advanced Radio Operations 
Chapter 6 
Advanced Radio Operations  67 
Fine-Tuning Your Personality  69 
Prioritizing a User Group  69 
Changing the Scanning Mode  71 
Changing the Active Channel  74 
Network Operating Mode  75 
Locking Out User Groups  75 
Troubleshooting 78 
Advanced Radio Operations – Chapter 6 
                                        P800 User’s Manual    68  

Advanced Radio Operations – Chapter 6 
                                        P800 User’s Manual    69  
Fine-Tuning Your Personality 
Access to as many as 16 profiles within your pre-
determined radio personality gives you tremendous 
responsiveness to the changing needs of your workday. 
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. 
Prioritizing a User Group 
At different times during your shift you may want to 
change the Priority Scan Group on your radio.  This 
determines which talk group will take precedence in 
the event that multiple talk groups from your scan list 
are simultaneously active. 
In the event that the Priority Scan Group is not one of 
multiple active talk-groups, the first active is the one 
that will be heard. 
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.” 
Priority Scan is
different from Tal
k
Group status. Even i
f
you give a Listen
Group priority scan
status, your Tal
k
Group is still your Tal
k
Group. 

Advanced Radio Operations – Chapter 6 
                                        P800 User’s Manual    70  
  How to Assign Scan Priority to a Group 
1.) Turn the Profile selector dial to the profile 
containing the user group you wish to prioritize. 
When it comes to the screen, each profile is 
identified by its profile number and talk group, 
which is also the default priority scan group. 
2.) Press the right Menu button one time to access 
the Priority Scan menu. When you arrive, you’ll 
see the Priority indicator P in the Status area. 
3.) Use the Selector buttons to scroll through the user 
groups in your active profile until you find the 
group you want to assign scanning priority.  
4.)  Stop when your new priority group appears in the 
display panel with the Priority Scan indicator. 
5.)  No further action is required. Your radio assigns 
priority status to the group you’ve selected and, 
after a short delay, returns to the default screen. 
  How to Undo your Priority Assignment 
If you’ve made a scanning priority assignment in error, 
or immediately change your mind, you have a few 
seconds to undo your selection before it takes effect. 
2.)  Immediately press either Menu button. 
3.)  Your Display panel confirms that you are back in 
the Priority Scan menu. 
4.) Use either Select button to change your selection. 
Talk Grou
p
Profile 
Priorit
y
 Scan 
Priority Scan 
Indicato
r
Advanced Radio Operations – Chapter 6 
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If pressing the Menu button does not launch you back 
into the Priority Scan menu, you haven’t acted quickly 
enough to Undo your choice. Wait approximately 10 
seconds for the selection process to clear the radio, 
then press the right Menu button to re-enter the Priority 
Scan menu. 
Duration of Priority Assignments 
If you make no priority assignments during your shift, 
each profile selects the talk group 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. 
Changing the Scanning Mode 
Three scanning modes are available for the P800, but 
only one can be active at any time. Changing your 
scanning mode changes the way your radio scans voice 
calls for all of the profiles in your radio personality.  
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 again; even if you turn off your radio, your 
current selection will be saved until your next use. 
Scan Mode  Explanation 
No Scanning ......
Full communications (listen and 
talk) with your talk group. 
No calls from listen groups. 
Eliminates distractions.  

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Scan Mode  Explanation 
Normal ..............
Scanning 
Full communications (listen and 
talk) with your talk group.  
Receive calls from the listen groups.  
This is the default setting. Network 
administrator has established this as 
the most effective configuration for 
everyday use. 
Talkback............
Scanning 
Full communications (listen and 
talk) with your talk group. 
Receive calls from the listen groups. 
Place voice calls to the most recent 
listen group by pressing the Push-
to-talk button before the Talkback 
timer expires. 
  How to Place a Talkback Call 
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.  
1.)  Set your radio to Talkback Scanning mode. 
2.)  When you hear an incoming listen group call you 
want to respond to, press the Push-to-Talk button. 
3.)  . . . 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. 
4.)  . . . If you fail to beat the timer, your call will 
transmit to the talk group for your active profile. 
5.)  . . . If you repeatedly exceed the talkback time 
limit, consider asking the network administrator to 
extend the time allowed. 

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  How to Change your Scanning Mode 
1.) Press either Menu button until the Scan Menu 
appears. The Scan Menu indicator SCN lets you 
know you’re in the menu. The Display panel 
shows the currently selected Scan mode. 
2.) To narrow your scanning list to just the talk group 
in your active profile, press either Select button 
until SC NONE is displayed. 
3.)  To select the default scanning mode which scans 
all the listen groups in your active profile, press 
either Select button until SC NORM is 
displayed. 
4.) To broaden your communications range by 
enabling talkback voice calls to your active listen 
groups, press either Select button until SC 
TLKB is displayed. 
5.)  No further action is required. Your radio adjusts to 
the new scanning mode and, after a brief delay, 
reverts to the default screen. 
  How to Undo your Scan Mode Selection 
If you’ve made a Scanning Mode selection in error, or 
immediately change your mind, you have a few 
seconds to undo your selection before it takes effect. 
1.)  Immediately press either Menu button. 
2.)  Your Display panel confirms that you are back in 
the Scan Mode menu. 
3.) Use either Select button to change your selection. 
Current Scan
Mode Status 
Scan Menu  
Indicato
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                                        P800 User’s Manual    74  
If the Menu button does not launch you back into the 
Scanning Mode menu, you’ve missed the Undo 
deadline. Wait approximately 10 seconds for the 
selection process to clear the radio, then use the Menu 
buttons to re-enter the Priority Scan menu. 
  Duration of Scanning Mode Selections 
Scanning Mode selections survive Power Off. At 
startup, your radio will default to the scanning mode of 
your last use. Any selection you make during your shift 
will remain in effect until you make a new selection 
from the Scan Mode menu. 
Changing the Active Channel 
If your reception is poor or you are repeatedly denied 
channel access, you can manually change the radio to a 
different channel. 
  How to Change the Active Channel 
1.) Press either Menu button until the Channel 
Change Menu appears. The indicator MON lets 
you know you’re in the menu. The Display panel 
shows the currently selected active Channel. 
2.) Press either Select button once or repeatedly to 
display alternate channel choices. Stop when you 
see a channel you like. 
3.)  No further action required. Wait while the radio 
synchronizes with the new channel. 
4.)  When synchronization is complete, the display 
panel reveals the familiar Active Connection 
indicator : in the bottom left corner. 
Active 
Channel 
Channel Menu
Indicato
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                                        P800 User’s Manual    75  
Network Operating Mode  
Your P800 operates with the OpenSky Trunked 
Protocol (OTP) to provide the full range of features 
available on your digital voice and data network. 
At the same time, if your agency cooperates with 
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. 
Locking Out User Groups 
There are at least two ways to focus your voice 
communications by suppressing calls from listen 
groups in your active profile.  
By changing your Scanning Mode to No Scan you can 
block all non-emergency voice calls from the listen 
groups in your profile, concentrating your attention 
entirely on your talk group. 
Or, by Locking Out selected groups, you can eliminate 
just the non-essential communications from being 
heard on your radio.  This allows you to focus on 
scanning resources on just the groups whose calls you 
wish to track. Lock Out will block only non-emergency 
calls. Emergency Alerts and the voice calls that follow 
the alerts will break through your Lock Out command. 
Groups You Can Lock Out 
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 your incoming voice call activity, loading 
the names of calling groups into the menu as the calls 
are received.  
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 

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                                        P800 User’s Manual    76  
radio session. Until you do take a call from that group, 
you can’t lock them out. 
  How to Lock Out a Listen Group 
1.) Press either Menu button until the Lockout Menu 
appears. The indicator LO lets you know you’re in 
the menu. The Display panel shows one of the user 
groups from which you’ve received voice calls. 
2.)  If the message NONE appears in the panel, you 
haven’t received any voice messages yet from the 
user groups in your active profile. Until you do, 
you won’t be able to lock them out. 
User Group from 
Active Profile 
Lockout Menu 
Indicator 
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                                        P800 User’s Manual    77  
3.)  If the name of a User Group appears in the panel, 
use the Upper Select Button to scroll through the 
menu of user groups you can lockout. (The lower 
Select button is reserved for another use in this 
procedure). 
4.) Press the Lower Select Button to Lockout calls 
from a user group displayed in the panel. 
5.)  To return to the Menu for more Lockouts, press 
either Menu button immediately, then repeat Steps 
3 and 4. 
6.)  If pressing the Menu button doesn’t bring back the 
Lockout display, your radio is busy with the 
Lockout procedure. Wait about 10 seconds for the 
Menu to return to the screen. 

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Troubleshooting 
If your radio does not operate properly, check the chart 
below for likely causes. For additional assistance, 
contact a qualified service technician.  
Symptom Cause  Solution 
Radio will not 
turn on 
Low battery.  Install a fully charged 
battery pack. 
No audio  Speaker volume is muted.  Increase the volume level. 
Poor audio  You are in a poor coverage 
area or not on the network 
Move to a better coverage 
area. 
Poor audio  Antenna connection is 
loose. 
Reseat the antenna in the 
top panel connector 
Failed 
Registration 
Wrong User ID/ password 
or ID not approved 
Send to Network 
Administrator for new 
User ID and/or password. 
Missed Call  Scanning not enabled  Enable scan mode 
Unable to 
Respond to a 
Call 
Talkback scanning not 
enabled 
Enable talkback scan 
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