Digitally signed by: John Blasi
DN: CN = John Blasi C = US
Date: 2015.07.06 15:20:28 -06'00'
John
Blasi
Michael Hohman
2015.07.06 15:25:32 -07'00'
Robert Davis
2015.07.06 15:26:26 -06'00'
Linda Andujo signature
2015.07.06 15:53:05 -07'00'
2015.0
7.06
15:53:
27
-07'00'
REVISION HISTORY
Refer to the DCA and associated markups for a complete description of
the changes incorporated in a revision.
REV DCA DATE DRAWN CHECKED APPROVED PUBLISHED
A W14973 07/06/15
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION.
NEITHER RECEIPT NOR POSSESSION OF THIS DOCUMENT CONFERS ANY RIGHT TO REPRODUCE, USE OR DISCLOSE, IN WHOLE OR IN PART, ANY
INFORMATION CONTAINED IN THIS DOCUMENT WITHOUT WRITTEN AUTHORIZATION FROM WULFSBERG ELECTRONICS.
TEMPLATE 150-744545-01 REV. E
CAGE
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LATEST REVISION.
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Chelton Avionics, Inc.
dba Wulfsberg Electronics Division
Prescott, AZ
DOCUMENT TITLE
INTERFACE SPECIFICATION, HUMAN
INTERFACE, RT7PAN
SIZE
LRU
DOCUMENT NUMBER
REV
Typed signatures indicate approval. Handwritten signature approval of
this document is on file at Wulfsberg Electronics, Prescott, Arizona.
6.4.1 Normal Operation Page .................................................................................................................................. 11
6.4.2 System Functions ........................................................................................................................................... 33
Figure 1 User Control Module .................................................................................................................................... 7
Figure 2 Display Page Tree Structure ........................................................................................................................ 8
Figure 6 System Shutdown Screen.......................................................................................................................... 11
Figure 7 Normal Operation Page ............................................................................................................................. 12
Figure 8 Normal Operation Page Regions ............................................................................................................... 12
Figure 9 Normal Operation Page Navigation ........................................................................................................... 13
Figure 100 Tone-Entry Dialog No Tone ................................................................................................................... 79
Table 55 Control Head Tuning in 8.33 KHz Mode .................................................................................................... 82
End of Page 5
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1 PURPOSE
This document establishes the design requirements for the human interface of the RT-7000 panel mount
radio. It is to be used by the design team as a specification guiding all detailed design.
2 SCOPE
This document addresses only the human interface of the RT-7000 panel mount radio.
3 ACRONYMS, ABBREVIATIONS AND GLOSSARY
Term Definition
PMR Panel mount radio
CPS
KVL
OTAR
LCD Liquid Crystal Display
XCVR Abbreviation for Transceiver
APX-7000 Motorola portable radio with P25 capability
APX Abbreviation for APX-7000
CWT Abbreviation for Cobham wideband transceiver
PCIe PCI Express
APM Aircraft Personality Module
Customer Programming Software – Motorola PC application for
configuring radio personality data.
Key Variable Loader - Motorola product for loading encryption keys
into an encryption capable radio.
Over The Air Rekeying - an encryption system feature for loading
encryption keys into a radio via a radio link.
4 RELATED AND REFERENCE DOCUMENTS
Document Number Publisher Document Title
701-070041 Wulfsberg System Requirements Specification, RT7PAN
DOT/FAA/TC-13/44 v1.0 FAA
701-070724 Wulfsberg
Human Factors Considerations in the Design and
Evaluation of Flight Deck Displays and Controls
Panel Mount Radio Project - Graphics, Human Factors
and Haptics Guidelines
5 GUIDANCE ADHERENCE
The human interface of the PMR should adhere to the applicable guidance documents as much as is
practicable. Guidance documents are listed in Section 4. Note that the guidance documents come from
multiple sources and include internally developed guidelines and those from the FAA. The following
summarizes the guidance applicable to the PMR. This is not an exhaustive list. The source guidance
documents should be referenced when additional detail is desired.
TSOC113a
Advisor Circular 25-11B
SAE AS8034B Minimum Performance Standard for Airborne Multipurpose Electronic Displays
SAE ARP4256A Design objectives for liquid crystal displays for part 25 (transport) aircraft
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6 HUMAN INTERFACE DESCRIPTION
The human interface of the PMR is provided by the User Control Module. This module consists of the
faceplate, knobs, buttons, LCD touch display, digital interface port, and supporting hardware. The User
Control Module communicates with the Radio Control Module over PCIe. Figure 1 depicts the User
Control Module.
HOMEMENU
BrightnessVolume/On/OffCursorValue/Enter
Figure 1 User Control Module
6.1 ARCHITECTURE
The human interface is organized into display pages. Each display page provides the operator the ability
to view specific information, or perform some specific task(s). The operator navigates from page to
page by pressing keys, turning knobs, etc. Navigation can be achieved either through the touchscreen
or through keys/knobs/push-button actions. Display pages are organized in a tree structure, rooted at
the normal operation page. All features are three (3) actions or less from the normal opera tion page.
Figure 2 shows the tree structure of the display pages identified in this document.
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NormalOperationPage
RelayMode
SimulcastMode
Relay/SimulcastMode
RepeaterMode
MessagePage
MenuDialog
ConfigurationMenu
System
PresetChannels
ScanGroups
EncryptionKeys
BacklightBrightness
Dialog
OTARConfirmation
Dialog
VolumeAdjustment
Dialog
EncryptionKeySelection
Dialog
KeypadChannelEntry
Dialog
ChannelEditDialog
QMEMDialog
KeypadFrequencyEntry
Dialog
TacticalModeView
ATCModeView
OTARStatusView
ScanStatusView
ScanGroupSelect/Edit
Dialog
Figure 2 Display Page Tree Structure
6.2 POWER ON
If aircraft power is removed while the PMR is in operation, the PMR shall automatically turn on upon
reapplication of aircraft power. If the PMR is not in operation (turned off) when aircraft power is
removed, the PMR shall remain off when aircraft power is restored, and shall only turn on when an
operator presses the “ON” button.
Upon power up, the PMR shall display a “boot” screen while system initialization is taking place. This
should take less than 30 seconds, which is the amount of time specified for the transceiver modules to
come up fully. Figure 3 depicts the boot screen. Note the software part number displayed near the
bottom of the screen. In addition, the hardware model number and firmware number shall be displayed.
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320-1XXXXX-XX
Figure 3 Boot Screen
During power up, if the Aircraft-Personality-Module (APM) is missing or inoperable, the PMR shall display
an error screen indicating the condition. The operator shall be required to acknowledge this condition
before execution can continue. Once acknkowledged, the system shall use default values for the APM
parameters and continue the boot process. Figure 4 depicts the APM-Error screen.
Configurationmoduleerror.
Missingorinoperable.
Usingdefaultvalues.
Figure 4 APM-Error Screen
During power up, if the Factory-Configuration data is missing or corrupt, the PMR shall display an error
screen indicating the condition and cease normal operation. Figure 5 depicts the Factory-ConfigurationError screen.
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Figure 5 Factory-Configuration-Error Screen
6.3 POWER OFF
If aircraft power is removed while the PMR is in operation, the PMR shall be able to restore the following
from non-volatile memory upon reapplication of aircraft power.
Current active channel for each transceiver
Current volume level for each transceiver
Current active transceiver
Audio Levels
The operator shall be able to turn the PMR off by pressing and holding the “ON” button. While the “ON”
button is being held down, the PMR shall do the following:
1. Go to full brightness.
2. Display the System Shutdown screen depicted in Figure 6.
3. Count down the seconds remaining until system turns off from 3 to 0.
4. When the count hits 0, power off.
If the operator releases the “ON” button prior to 3 seconds elapsing, the display shall return its previous
state.
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Figure 6 System Shutdown Screen
6.4 DISPLAY PAGES
The following sections flesh out each of the display pages identified in Figure 2. The information
required to display on each page is given along with known button/knob event requirements. A picture
showing the desired page layout is also provided. Due to the significant differences in aspect ratio
between the documentation system and the actual hardware’s display, some deviation in f onts, colors,
and information placement is expected, and permissible, in the implementation.
6.4.1 N
6.4.1.1 Layout
ORMAL OPERATION PAGE
This page is the primary operational page of the PMR. This page shall be the first operational page
displayed after system boot. Figure 7 depicts the desired layout for this page when the maximum 5
transceivers are available.
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RT1
RX
61
174
RT2
125.300
RX
RT3
CHINO FD
RT4RT5
PRESCOTT TWR
WEATHER
SCANPVTDIR
RT1
DIR PVT SCAN
PRESCOTT TWR
◄
◄
Figure 7 Normal Operation Page
The Normal-Operation-Page is divided into 2 regions: System Dashboard and Active Transceiver. These
regions are depicted in Figure 8.
CHANMUTEDIR
RT1
DIRPVT SCAN
PRESCOTT TWR
RX
RT1
61
174
RT2
125.300
RX
RT3
CHINO FD
RT5RT4
SCANPVTDIR
PRESCOTT TWR
WEATHER
System
Dashboard
Active
Transceiver
◄
◄
Figure 8 Normal Operation Page Regions
The System-Dashboard region contains a summary of the operating state of all the transceivers installed
in the system. The PMR supports from 1 to 3 internal transceivers and 0 to 2 external transceivers. This
region shall be split into sub-regions, one for each transceiver. These sub-regions are termed a
Dashboard-View. Details of the contents of the Dashboard-View are given elsewhere in this document.
The Active-Transceiver region contains detailed information on the active transceiver. The active
transceiver is the one that the operator will interact with. This region of the display is termed an ActiveTransceiver-View. All transceiver specific functions are accessed via the Active-Transceiver-View.
Details of the contents of the Active-Transceiver-View are given elsewhere in this document.
CHANMUTEDIR
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A transceiver shall be made active by pressing its Dashboard-View, either by direct touch or by
cursor/value/enter. Any of the installed transceivers shall be selectable as the active transceiver, but
only one transceiver shall be active at any given time.
When a transceiver is made active, it shall become the active transmitter for its PTT group. In singlemicrophone installations (i.e. a single PTT group), the active transceiver shall transmit when the PTT is
asserted. In multiple-microphone installations (i.e. two or more PTT groups), the active transceiver for
the PTT group shall transmit when the PTT for the group is asserted.
6.4.1.2 Navigation
To Home page shall be navigable by both touch and cursor/value. The screen element that the operator
is currently interacting with shall be indicated by a rectangle drawn around the element. This rectangle
is termed the focus rectangle. Only one screen element shall be focused at any given time. After three
(3) seconds of inactivity, the focus rectangle shall become invisible to avoid screen clutter. The gold
boxes (some rounded) in Figure 9 show the screen elements that shall be focusable.
Touching an element gives it the focus. Rotating the cursor knob clockwise shall move the focus
rectangle in a generally circular, left-to-right, top-to-bottom fashion. The red arrows in Figure 9 depict
the motion of the focus rectangle as the cursor knob is turned clockwise. Turning the cursor knob
counterclockwise shall move the focus rectangle in the reverse order of clockwise rotation. If the focus
rectangle is invisible due to inactivity, the first turn of the cursor knob shall make the focus rectangle
visible, but shall not move it from its previous location.
Figure 9 Normal Operation Page Navigation
6.4.1.3 Dashboard-View
The Dashboard-View contains a summary of the operating state of a transceiver . Its purpose is to keep
the operator informed about the state of non-active transceivers. This view contains only summary
information, such as the active channel and indications of mode. The Dashboard-View for an internal
transceiver is depicted in Figure 10. The Dashboard-View for an external transceiver is depicted in
Figure 11.
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RTX
RXTXPTX
DIRPVTSCAN
SIMRLY
ACT--CHANNEL
Figure 10 Dashboard View – Internal Transceiver
RTX
PTX
RXTX
SIMRLY
Figure 11 Dashboard View – External Transceiver
Table 1 Dashboard View Indicators
Indicator Description
RTX
RX Indicates transceiver is receiving. Only visible when receiving.
TX Indicates transceiver is transmitting. Only visible when transmitting.
PTX
DIR
Placeholder for transceiver’s identifier. Always visible. Valid values are RT1,
RT2 … RT5
Indicates transceiver is associated with PTT-X. Displayed in reverse video
(as shown) when transceiver is the active transceiver for its PTT group.
Can change if transceiver is participating in a simulcast, in which case the
simulcast trigger PTT will be displayed.
Indicates transceiver is in direct mode. Only visible when transceiver is in
direct mode. When not displayed, transceiver is in repeater mode. This
indicator should automatically appear for preset channels whose transmit
and receive frequencies are identical.
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Indicates transceiver is in private mode, i.e. encryption is enabled. Only
PVT
visible when transceiver is in encrypted mode. When not displayed,
transceiver is operating in the clear.
SCAN
Indicates transceiver is in scan mode. Only visible when transceiver is in
scan mode. When not displayed, transceiver is not scanning.
Indicates transceiver is participating in a simulcast. Only visible when
SIM
simulcast mode is active and the transceiver is participating in the
simulcast. When not displayed, transceiver is not participating in a
simulcast.
Indicates transceiver is participating in a relay. Only visible when relay
RLY
mode is active and transceiver is participating in the relay. When not
displayed, transceiver is not participating in a relay.
Placeholder for transceiver’s active channel. Always visible. When
transceiver is in tactical mode and is tuned to a preset channel the active
ACT--CHANNEL
channel indicator will display the alphanumeric identifier of the channel.
When transceiver is in COM mode, or the manual channel is tuned while in
tactical mode, the active channel indicator will display the receive
frequency of the channel.
When the transceiver has been turned off, all indicators except the transceiver identifier shall be
invisible, and “RADIO OFF” shall be displayed. The Dashboard-View for a transceiver that is off is
depicted in Figure 12.
Figure 12 Dashboard View – Transceiver Off
When the transceiver is not installed in the system, all indicators except the transceiver identifier shall be
invisible, and “NOT INSTALLED” shall be displayed. The Dashboard-View for a transceiver that is not
installed is depicted in Figure 13.
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RTX
NOT INSTALLED
Figure 13 Dashboard View – Transceiver Not Installed
6.4.1.4 Active-Transceiver-View
The Active-Transceiver-View contains detailed information on the operating state of the active
transceiver, and allows the operator to control the transceiver. From within this view the operator can
perform activities such as change channels, enter/exit direct mode, turn on/off encryption, etc. This also
contains more detailed state information than is displayed in the Dashboard-View. The ActiveTransceiver-View is depicted in Figure 14.
Figure 14 Active Transceiver View
The Transceiver-Label contains the identifier of the active transcei ver. Valid values are RT1, RT2, RT3,
RT4, and RT5. The Transceiver-Label shall behave as a button that when pressed, shall toggle the
transceiver’s on/off state. The label press shall be either by direct touch, or by cursor/value/enter
control.
The Indicator-Bar displays the current state of the active transceiver. The following table lists all the
indicators that can appear in the Indicator-Bar, what they mean, and when they are to be displayed.
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Table 2 Active Transceiver View Indicators
Indicator Description
RX Indicates transceiver is receiving. Only visible when receiving.
TX Indicates transceiver is transmitting. Only visible when transmitting.
M Indicates transceiver is muted. Only visible when muted.
90%
Placeholder for current volume level. Always visible. Valid values range
from 0% to 100%.
Indicates transceiver is in direct mode. Only visible when transceiver is in
DIR
direct mode. When not displayed, transceiver is in repeater mode. This
indicator should automatically appear for preset channels whose transmit
and receive frequencies are identical.
Indicates transceiver is in private mode, i.e. encryption is enabled. Only
PVT
visible when transceiver is in encrypted mode. When not displayed,
transceiver is operating in the clear.
SCAN
Indicates transceiver is in scan mode. Only visible when transceiver is in
scan mode. When not displayed, transceiver is not scanning.
Indicates transceiver is participating in a simulcast. Only visible when
SIM
simulcast mode is active and the transceiver is participating in the
simulcast. When not displayed, transceiver is not participating in a
simulcast.
Indicates transceiver is participating in a relay. Only visible when relay
RLY
mode is active and transceiver is participating in the relay. When not
displayed, transceiver is not participating in a relay.
Indicates transceiver is associated with PTT-X. Displayed in reverse video
PTX
(as shown) when transceiver is the active transceiver for its PTT group.
Can change if transceiver is participating in a simulcast, in which case the
simulcast trigger PTT will be displayed.
The Transfer-Button is a soft button that allows the operator to flip-flop the active and standby
channels. The Transfer-Button shall only be visible when the active transceiver is operating in standby
tuning mode.
The Active-Channel-Field is always visible and displays the channel to which the active transceiver is
currently tuned. When operating in Tactical-Mode the Active-Channel-Field shall display the channels
number and alphanumeric identifier if tuned to a preset channel. In SCAN mode, this field will display
the active channel. When Paused or Delaying in SCAN mode, this field will display the channel where
the pause or delay occurs. If tuned to a manual channel, the number shall be displayed as ‘..M’ and the
channel’s receive frequency shall be displayed in place of the alphanumeric identifier. If the PTT is in
effect, the alphanumeric identifier shall change to the transmit frequency of the channel, and if the
channel is being encrypted, the encryption key shall be displayed to the right of the transmit frequency.
If the channel is for receive only, the alphanumeric identifier field shall display “RX ONLY” during an
attempted PTT. When operating in ATC-Mode the Active-Channel-Field shall display the channel’s
receive frequency.
The Standby-Channel-Field is only visible in standby tuning mode, and displays the channel to which the
active transceiver will be tuned when the Transfer-Button is pressed. When operating in Tactical-Mode
the Standby-Channel-Field shall display the channels number and alphanumeric identifier if tuned to a
preset channel. If tuned to a manual channel, the number shall be displayed as ‘..M’ and the channel’s
receive frequency shall be displayed in place of the alphanumeric identifier. When operating in ATCMode the Standby-Channel-Field shall display the channel’s receive frequency.
The Transceiver-Function-Menu is always visible and displays the functions available for the active
transceiver. Different types of transceivers have different functions. Only functions applicable to the
active transceiver shall be made visible. Functions that are applicable but not available shall be shown
but disabled. The following table lists the transceiver functions and their applicability.
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Table 3 Transceiver Functions
Function Description Applicability Mode Availability
CHAN
DIR
OTAR
KEY
TEST
Allows channel to be selected by
channel number
Toggles state of direct/repeat
mode
Start/Stop performing an OTAR
operation
Allows encryption key to be
temporarily changed
Temporarily forces un-squelch of
transceiver
Allows frequency to be selected
by number
Toggles state of mute, allowing
audio to be heard or silenced.
Force COM tuning to be in 25 KHz
increments.
Force COM tuning to be in 8.33
KHz increments.
Allows squelch threshold to be
changed.
CWT ATC Always
APX, CWT TAC,
Always
ATC
CWT ATC Always
CWT ATC Always
CWT TAC,
Always
ATC
When the transceiver has been turned off, all indicators except the transceiver identifier shall be
invisible, and “RADIO OFF” shall be displayed. The Active-Transceiver-View for a transceiver that is off
is depicted in Figure 15.
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Figure 15 Active Transceiver View – Transceiver Off
6.4.1.5 Common Functions
Some functionality is available regardless of whether a transceiver is operating in Tactical mode or ATCCOM mode, such as volume control. The following sections describe operation that is common to both
Tactical and ATC-COM mode.
6.4.1.5.1 Test Function
When the operator presses and holds the TEST Transceiver-Menu button the active transceiver shall be
forcibly un-squelched for as long as the button is pressed. When the operator releases the TransceiverMenu button, the active transceiver shall resume its normal squelch operation.
6.4.1.5.2 Mute Function
When the operator presses the MUTE Transceiver-Menu button the active tr ansceiver shall be muted if it
is not already muted, and shall become unmuted if it is currently muted. When a transceiver is muted ,
no audio from that transceiver shall be audible.
6.4.1.5.3 Volume Adjustment
When the operator turns the volume knob, the volume adjustment dialog shall appear to adjust the
volume on the active transceiver. Figure 16 depicts the volume adjustment dialog after the volume knob
has been turned. Turning the volume knob clockwise shall increase the volume level, while turning the
knob counter clockwise shall decrease the volume level. The current volume level shall be displayed
within the dialog. The volume adjustment dialog shall automatically disappear when no knob turning
activity has occurred for more than 2 seconds.
When the operator pushes the VOL Transceiver-Menu button the volume adjustment dial og shall appear
to adjust the volume on the active transceiver. Touching the volume scale and sliding the pointer to the
left shall decrease the volume level, while sliding the pointer to the right shall increase the volume level.
The current volume level shall be displayed within the dialog. The volume adjustment dialog shall
automatically disappear when no touch pointer activity has occurred for more than 2 seconds.
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RT1
VOL:
◄
Figure 16 Volume Adjustment Dialog
6.4.1.5.4 Quick Memory (QMEM)
The QMEM feature allows the operator to store/recall frequencies much like presets on a car stereo.
When the operator presses the QMEM Transceiver-Menu button, the QMEM selection dialog shall be
displayed. The QMEM selection dialog allows the operator to either recall or program a QMEM location.
When the operator momentarily presses a QMEM location, the channel programmed into the
corresponding (0-9) QMEM location shall be loaded into the active channel, and the previously active
channel shall be loaded into the standby channel. If the operator presses and holds a QMEM location
(0-9) for 3 or more seconds, the current active channel shall be programmed into the corresponding
QMEM location. Should the operator not press any key for more than 4 seconds after pressing the
QMEM Transceiver-Menu button, the QMEM operation shall automatically be canceled. The operator
shall be able to manually cancel the QMEM operation by pressing the Cancel button. There shall be 10
QMEM locations for Tactical mode, and another 10 QMEM locations for ATC-COM mode. Figure 17
depicts the QMEM selection dialog in Tactical Mode.
CHANMUTEVOL
90%
90%90%
90%
PVTDIR
◄
Select QMEM
0: PRESCOTT TWR
2: CHINO FD
4: N/A
6: N/A
8: N/A
Cancel
Figure 17 QMEM Selection Dialog
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1: WEATHER
3: PRESCOTT PD
5: N/A
7: N/A
9: N/A
Page 20 of 85
When a transceiver is operating in Tactical mode the QMEM selection dialog shall display the
alphanumeric identifier of the preset channel if the QMEM locations has been programmed or “N/A if the
locations is un-programmed. When a transceiver is operating in ATC-COM mode, the receive frequency
of the channel shall be displayed for programmed QMEM locations, while “N/A” shall be displayed for unprogrammed locations.
The QMEM locations can be touched directly, or selected by rotation the Cursor knob. The selected
locations shall be indicated by the focus rectangle, shown in orange in the figure. Pressing the ENTER
button shall have the same effect on the focused location as if it were touched directly on the screen,
including the press and hold functionality.
6.4.1.5.5 Squelch Threshold Adjustment
When the operator pushes the SQL Transceiver-Menu button the squelch threshold adjustment dialog
shall appear to adjust the squelch threshold on the active transceiver. Touching the scale and sliding
the pointer to the left shall decrease the level, while sliding the pointer to the right shall incre ase the
level. Rotating the value knob clockwise shall increase the level while rotating the value knob
counterclockwise shall decrease the level. The current level shall be displayed within the dialog. The
squelch threshold adjustment dialog shall automatically disappear when no touch pointer activity has
occurred for more than 2 seconds. Figure 18 depicts the squelch threshold adjustment dialog after the
SQL button has been pressed.
RT1
SQL:
◄
Figure 18 Squelch Threshold Adjustment Dialog
6.4.1.6 Tactical Mode
When a transceiver is operating in Tactical mode it behaves similar too, and has all the functionality of,
previous generations of Cobham (Wulfsberg) tactical radios, such as the C-5000/RT-5000 and P-2000.
This includes preset channel tuning, P25 functionality, and, via the Manual-Channel, unlimited frequency
tuning capability. The following sections describe operation in Tactical mode.
6.4.1.6.1 Changing Channels
When the unit is operating in tactical mode and standby tuning is enabled and the operator presses the
Transfer-Button the active and standby channels shall be swapped , and the active transceiver shall be
tuned to the new active channel (previously the standby channel). Figure 19 depicts the active
transceiver both prior to, and after, pressing the Transfer-Button.
MUTEVOLSQL
90%
PVTDIR
25%90%
◄
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Figure 19 Changing Active Channel by Transfer
When the unit is operating in tactical mode and standby tuning is enabled the operator shall be able to
focus the standby channel’s Channel-Number field. When the Channel-Number field has the focus,
turning the Value knob clockwise shall select the next available channel by number, while turning the
knob counterclockwise shall select the previous available channel by number. Fi gure 20 depicts the
standby channel being tuned by number.
Figure 20 Changing Standby Channel by Number
When the unit is operating in tactical mode and standby tuning is enabled the operator shall be able to
focus the standby channel’s Channel-Alpha field. When the Channel-Alpha field has the focus, turning
the Value knob clockwise shall select the next available channel by alphanumeric identifier, while turning
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the knob counterclockwise shall select the previous available channel by alphanumeric identifier. Figure
21 depicts the standby channel being tuned by alphanumeric identifier.
Figure 21 Changing Standby Channel by Alphanumeric Identifier
When the unit is operating in tactical mode and standby tuning is enabled and the operator presses the
CHAN Transceiver-Menu button, the Channel-Number-Entry dialog shall appear to change the standby
channel on the active transceiver. Figure 91 depicts the Channel-Number-Entry dialog.
If the number entered is a valid channel, it shall be loaded into the active transceiver and the display
shall return to the Normal-Operation-Page. If the entered number is invalid, the digits entered shall be
cleared and the operator can try again. Entering a channel number of 0 shall load the manual channel
for the active transceiver. Pressing the HOME button shall cancel the operation and return to the
Normal-Operation-Page.
6.4.1.6.2 Direct/Repeat Mode
When the unit is operating in tactical mode and the active channel is not a simplex channel, and the
operator presses the DIR Transceiver-Menu button and the transceiver is in Direct mode, the transceiver
shall change to Repeater mode. Conversely, if the transceiver is in Repeater mode, pressing the DIR
Transceiver-Menu button shall change the transceiver to Direct mode. If the active channel is a simplex
channel, the DIR Transceiver-Menu button shall have no effect as DIR should be displayed at all times
6.4.1.6.3 Encrypted Mode
When the unit is operating in tactical mode and the active channel is capable of encryption , and the
operator presses the PVT Transceiver-Menu button and the transceiver is in encrypted mode, the
transceiver shall change to non-encrypted mode. Conversely, if the transceiver is in non-encrypted
mode, pressing the PVT Transceiver-Menu button shall change the transceiver to encrypted mode. If
the active channel (or transceiver itself) is not capable of encryption, the PVT Transceiver-Menu button
shall have no effect.
6.4.1.6.4 ATC Mode
When the unit is operating in tactical mode and the operator presses the ATC Transceiver-Menu button,
the transceiver shall change to ATC-COM mode. Note ATC-COM functionality is only available on CWT
modules. If the active transceiver is an APX, the ATC Transceiver-Menu button should be disabled or
invisible.
6.4.1.6.5 OTAR Process
When the operator presses the OTAR Transceiver-Menu button, the OTAR process shall begin. The first
step in this process is confirmation. The operator shall be presented with the OTAR start confirmation
dialog, depicted in Figure 22. The operator may press the NO button or the HOME key to cancel the
operation, or press the YES button to continue the OTAR operation.
701-070801 Rev A This document contains proprietary information,
Page 23 of 85
see proprietary statement on first page.
Figure 22 OTAR Confirmation Dialog
Once the operator has confirmed the operation, the active transceiver shall begin the OTAR operation.
The display shall give feedback to the operator on the progress of the OTAR operation. At a minimum,
“OTAR in progress” and “OTAR completed” or “OTAR failed” status messages shall be displayed. The
status messages shall be displayed in the screen area normally used to display the active and standby
channel information. Figure 23 depicts a typical OTAR status display.
While the OTAR status is “OTAR in progress” the STOP button shall be enabled. If the oper ator presses
the STOP button the OTAR cancel confirmation dialog shall be displayed, as depicted in Figure 24. This
dialog functions identically to the OTAR start confirmation dialog. If the operator chooses to cancel the
OTAR, then the OTAR operation shall be aborted and normal operation resumed. If the operator
chooses to continue with the OTAR operation, the display shall resume to where it was prior to the STOP
button being pressed. While an OTAR is in progress, no transceiver functions shall be available other
than to cancel the OTAR in progress.
While the OTAR status is “OTAR completed” or “OTAR failed” the OK button shall be enabled. The
operator shall be required to press the OK button to acknowledge the result of the OTAR operation.
When the operator presses the OK button the display and available function ality shall return to normal.
701-070801 Rev A This document contains proprietary information,
Page 24 of 85
see proprietary statement on first page.
RT1
RT1
RT1
OTAR in progress
CANCEL
OTAR complete
OK
90%
SCANPVTDIR90%
SCANPVTDIR90%
SCANPVTDIR
OTAR failed!
OK
Figure 23 OTAR Status Display
Figure 24 OTAR Cancel Confirmation Dialog
701-070801 Rev A This document contains proprietary information,
see proprietary statement on first page.
Page 25 of 85
6.4.1.6.6 Encryption Key Selection
When the operator presses the KEY Transceiver-Menu button, the encryption key selection dialog shall
appear as depicted in Figure 25. All 16 possible keys shall be displayed, both by number and
alphanumeric identifier. In addition, the “PRESET” option shall be displayed, allowing the restoration of
the key that was preset for the channel. The operator shall be able to select a key by touching it directly
on the screen, or by using the cursor/value knobs. When the value knob is turned, the focus rectangle
shall traverse the list, scrolling as necessary. When the cursor knob is turned, the focus rectangle shall
move between the list and the Cancel button. Pressing the ENTER button shall select the key with the
focus. The operator shall be able to cancel the operation by pressing the Cancel button.
Select Key
P: PRESET
1: DES 1
2: IOP DES
3: DES 3
Figure 25 Key Selection Dialog
6.4.1.6.7 Scan Operation
Scan mode is invoked by pressing the SCAN Transceiver-Menu button. Only the active transceiver is
affected. If the active transceiver is incapable of scan, the Error-Tone shou ld sound. If the active
transceiver is scan capable but there are no scan groups programmed for it, the No-Scan-Groups dialog
shall display. If the active transceiver is scan capable and there are one or more scan groups
programmed for it, the Select-Scan-Group dialog shall display.
The No-Scan-Groups dialog is displayed when an attempt is made to start scan mode on a transceiver
that has no scan groups associated with it. The page is depicted in Figure 26. The OK soft button or
the HOME button shall be used to dismiss the dialog. All other buttons and knobs are ignored.
The Select-Scan-Group dialog is displayed when scan mode is started on a transceiver that has one or
more associated scan groups. This page, depicted in Figure 27, shall allow the operator to select one of
the transceiver’s scan groups for scanning.
The first time the Select-Scan-Group dialog is displayed after a power cycle, the first (lowest numbered)
scan group assigned to the active transceiver shall be focused. For subsequent invocations of the page,
the most recently selected scan group for the active transceiver shall be focused. The last selected scan
group need not be retained when power is lost.
CancelOk
All available scan groups for the transceiver shall be displayed, both by number and alphanumeric
identifier. The operator shall be able to select a group by touching it directly on the screen, or by using
the cursor/value knobs. When the value knob is turned, the focus rectangle shall traverse the list,
scrolling as necessary. When the cursor knob is turned, the focus rectangle shall move between the list
and the Edit, Scan, and Cancel buttons.
701-070801 Rev A This document contains proprietary information,
see proprietary statement on first page.
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