Operating Voltage 4.75-9.5 VDC
Operating Current
Power Save Mode (COR Operation) 2.5 mA typical
Power Save Mode (VOX Operation) 10 mA typical
Repeat Operation 17.5 mA typical
Average w/COR Power Save (80-10-10 cycle) <5 mA
Average w/COR Power Save (90-5-5 cycle) <4 mA
Operating Temperature -30 - +60 C
Frequency Response 300-3000 Hz
Input Impedance >45 k
Input Level (TX) 0.05-2.5 VPP
Input Level (RX) 0.05-2.5 VPP
Audio Output Impedance < 1200 Ohm
INSTALLATION OVERVIEW
1. Test the radio for functionality.
2. Program the unit per the Product Programming Section of this manual.
3. Install the unit into the radio per the Hardware Installation Section of this manual.
4. Program the radio per the Radio Programming Section of this manual.
*** Midian is not responsible for any damage/loss resulting from the use of Midian’s products.
2
GENERAL INFORMATION
Midian’s VAE-1 is a voice alarm encoder that can have a voice message stored in it and when the emergency
input is grounded the VAE-1 will transmit an emergency ANI and/or the prerecorded voice message. The
following are some common applications:
Emergency Location and Lone Worker: The VAE-1 is ideal for providing voice location messages for Public
Safety (firefighters and police) or for lone workers in areas where GPS location is not available. For example,
firefighters can store a custom voice message into the VAE-1 as their location changes while fighting a fire in a
building. If there is a fire in a ten story apartment building and the firefighter is working on the second floor in
apartment 215, the firefighter can record “Second floor apartment 215”. If the firefighter moves to the third floor in
apartment 306 the firefighter can rerecord the message to say “Third floor apartment 306”. If the emergency input
is activated (by a button press or the lone-worker feature) then the VAE-1 will send an emergency ANI to identify
to the dispatcher who is in trouble and then the voice message will follow to inform the dispatcher the distressed
firefighter last recorded location. This enables the rescuers to concentrate their search efforts in one area of the
apartment building rather than splitting their search efforts between ten stories. Locator tones can also be
generated to provide an audible alert to the searchers.
Equipment Failure Notification: The emergency input of the VAE-1 can be connected to equipment such as
tower lights or a backup generator, so that when the tower light goes out it can send a voice message stating that
the “Mount Lemmon tower 3 light is off”. This warning can be sent periodically multiple times or continuously until
reset. For backup power, when the backup is activated a message such a s “Ba ckup po wer is on”.
Emergency Alert: Public safety dispatchers do not want field radio users to talk on the channel without need
when an emergency is occurring. The dispatcher can have the VAE-1 send a voice message such as “Emergency
alert keep channel clear”. This message can be sent periodically u ntil reset.
3
PRODUCT PROGRAMMING
Midian’s VAE-1-VX1 is programmed using the KL-4 programmer. Please reference the KL-4 manual for setup
instructions of the programming software and hardware. From the product selection screen on the MPS software,
select the VAE-1-VX1 from the list and click OK.
Set the parameters of the software to fit the application. If any clarifications on a feature are required, move the
mouse cursor over the feature name until the question mark appears and right click, a definition of the feature will
be shown.
After entering the parameters, save the file by going to File - Save As. Enter the file name in the File Name block
and click “Save”. Saving the file will allow for quick and easy reprogramming of units.
Programming: Plug the board onto the KL-4, connect the green clip lead to the Program In hole and connect the
yellow clip lead to the Program Out hole. Push the power button on the KL-4 and click “Program Unit” in the MPS
software. The LED on the KL-4 will faintly flash if programmed successfully.
Reading: Plug the board onto the KL-4, connect the green clip lead to the Program In hole and connect the
yellow clip lead to the Program Out hole. Push the power button on the KL-4 and click “Read Unit” in the MPS
software.
Program Out Program In
4
Wake on COR/Wake on VOX: Select the appropriate method that the unit should use to come out of power save.
COR Hold-Up Time This is the amount of time after loss of COR/VOX that the unit considers COR/VOX dropped.
VOX Settings > Sensitivity: This is a threshold detection based on the energy level in the audio.
VOX Settings > Attack Time: This sets the minimum time before the unit will detect VOX based on the sensitivity
setting.
VOX Settings > Decay Time: This sets the time before the unit will drop the VOX detection. Be certain to set this
long enough so that you do not have drop outs between words or on brief pauses.
Beep Options > Power Up: Enables a short beep sequence that takes place immediately after po wer-up.
Beep Options > Error: This beep may be triggered by any input event if programmed to do so. For example, if a
long press on the Mode Input is not assigned to a function, it may be configured to generate the error beep.
Beep Options > Mode: This is used to indicate to the user when the mode has been enabled/disabled (i.e..
Beep Options > Go Ahead: This is a local beep out the speaker to indicate to the user that ANI has been sent
and it is okay to talk.
Beep Options > Wake Up Beep: Enables a short beep to be sent over the air immediately after PTT is pressed.
Enabling this beep is recommended when the 'Wake on VOX' feature is used.
Beep Options > Courtesy Beep: If selected, once the unit is done retran smitting the recorded audio it will
generate a courtesy tone to let others know it is done retransmitting.
Beep Options > Enable Side Tone Pin: Future Use.
Voice Compression: If left unchecked the VAE-1 can store up to a 3-minute voice message. If check the VAE-1
can store up to a 2.25 minute voice message, but with a higher level of audio quality.
5
Common PTT: Check this box.
Trunking Delay Enable: Check this box if using a trunking system. This will cause the unit to hold off transmitting
the ANI until it has received a channel acquisition acknowledgement from the radio.
Key-Up Delay: This sets the amount of time the unit waits after keying the radio before it transmitting the ANI.
6
Protocol Format: Select the desired signaling format in which the ANI and ENI will be transmitted.
ANI Position: This can be set for the beginning of transmission (leading), end of transmission (trailing) or both.
Tone Duration: This field only applies to DTMF and 5-Tone formats and sets the length of each tone.
Tone Gap Duration: This field only applies to DTMF and sets the length of the gap between tones.
Fleet ID: This field only applies to FleetSync and sets the Fleet ID of the unit.
Unit ID: This sets the ANI of the unit.
Message: This field only applies to G-Star.
Status: This field only applies to G-Star.
Repeat Delay: This sets the time after sending an ANI that the unit will wait before sending another ANI.
7
Protocol Format: This displays the format selected on the ANI tab.
Fleet ID: This field only applies to FleetSync and sets the Fleet ID for the ENI.
Unit ID: This sets the Emergency ANI of the unit.
Message: This field only applies to G-Star.
Status: This field only applies to G-Star.
Transmit Forever: If selected the ENI will transmit continuously at the repeat interval until canceled.
Transmit Count: This sets the number of times the ENI will be sent.
Repeat Interval: This sets the time between ENI transmissions.
PTT Resets/Cancels ENI: If selected, pressing the PTT button will either reset the Lone Worker’s Transmit Delay
time or cancel the transmission of the ENI.
Live Mic Enable: If selected the unit will enable the mic of the radio to transmit mic audio to the dispatcher.
Revert to Clear: Currently not used.
Locator Tone Enable: If selected the unit will emit tones out the radio’s speaker after an Emergency ANI is sent.
8
Transmit Delay: In Lone Worker mode, if the user does not interact with the radio before this amount of time
passes, the ENI sequence will be transmitted. This time is in seconds.
Warning Tone Enable: This will generate a tone sequence to alert the user the ENI is about to be transmitted.
Warning Tone Delay: In Lone Worker mode, if the user does not interact with the radio before this amount of
time passes, the emergency warning tone will be sounded. This amount of time must be less than that of the
Transmit Delay for the warning tone to be sounded. Also, the Warning Tone Enable box must be checked for the
tone to be sounded. For example, based on the screen shown above after 105 seconds of no activity the unit will
generate warning tones. The user then has 15 seconds to interact with the radio to keep the Transmit Delay time
of 120 seconds expiring and the ENI being transmitted.
Continuous Warning Enable: This will generate a constant tone to alert the user the ENI is about to be
transmitted.
Power-up with Lone Worker on: If checked the unit will be in Lone Worker mode when the radio is turned on.
This eliminates the need for the user to use the mode input to turn the Lone Worker mode on.
Motion Resets Delay Timers: The unit can then use the accelerometer to detect motion based on the Motion
Sensitivity setting to determine if the user is in distress in addition to requiring interaction with the radio.
Motion Sensitivity: This sets a level of motion required to reset the Transmit Delay timer. Some work
environments may have an inherent level of motion that would be detected by lower settings of the accelerometer,
so a higher level of sensitivity might be needed. Midian recommends experimenting to determine the best
sensitivity setting for the work environment.
9
Transmit Frequency: When the emergency input is grounded the unit sends an Emergency ANI either once or
multiple times. This field tells the unit to send the voice alarm with the emergency ANI only on the first Emergency
ANI or on all Emergency ANI’s.
Require PTT to Record: Most radios will only pass audio to the option board when PTT is pressed. If this is the
case this box must be checked. In this mode a button is used to put the unit in record mode and then the PTT is
pressed to pass audio to the unit. The unit keeps the audio from being transmitted in record mode, but only if the
PTT path is broken.
Auto Review: After message recording is completed the unit will replay the message over the speaker to confirm
the message.
Save Message When Powered Off: This will keep the last recorded message in memory when power is cycled.
Auto Record: If checked the unit will start to record immediately upon power up. If the Require PTT to Record
box is checked it will wait for the PTT.
10
PTT > Active Polarity: This sets whether the unit looks for an active low or active high to start a recording.
PTT > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting the PTT.
Mode > Type: Select whether the switch is Momentary or Latched.
Mode > Active Polarity: Select the active polarity of the mode switch. In this case it should be Low.
Mode > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting the
mode change.
The remaining fields set how the switch is used (short press, long press or double press) and for which function
(record start, record stop/play, record start/stop, Lone Worker enable or Lon e Worker Reset).
11
COR > Active Polarity: This sets whether the unit looks for an active low or active high to start recording the
received audio. For these radios the polarity should be set to high.
COR > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting the
COR.
PTT > Active Polarity: This sets the polarity necessary for the unit’s PTT output to key the radio.
12
Audio Enable > Active Polarity: This sets the polarity necessary for the unit to enable the speaker of the radio to
pass beeps.
Emergency > Active Polarity: This sets whether the unit looks for an active low or active high to trigger an
emergency ANI.
Emergency > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting
the Emergency input activation.
Off Function: This can be set for Emergency Cancel, Lone Worker Enable or Lone Worker Reset.
On Function: This can be set for Emergency On, Lone Worker Enable or Lone Worker Reset.
13
Trunking Delay Input > Active Polarity: This sets whether the unit needs an active low or active high indication
from the radio to indicate a trunked channel has been established.
14
Tones > Beep Volume: Adjust the slider for the desired beep volume. This level is expressed as a percentage of
max voice audio level.
Tones > Over-The-Air-Signal Modulation: Adjust the slider for the desired modulation of the Emergency ANI.
This level is expressed as a percentage of max voice audio level. Midian recommends using 67%.
Playback > Playback Level: This controls the audio level when a stored voice message is played back on the
radio speaker. If voice playback is too low or too loud, adjust this level accordingly.
Playback > Transmit Level: This controls the audio level when a stored voice message is retransmitted over the
air. If the transmit level is too low or too loud, adjust this level accordingly.
15
AUDIO LEVELS ALIGNMENT
This section describes how to determine and set the audio levels.
Audio Levels Overview:
To ensure the best audio quality, the unit must be configured to match the audio levels used by the radio. The unit
uses programmable gain amplifiers to accomplish this. Determining the gain settings for these amplifiers is an
involved process, so Midian simplified this process by developing an algorithm that requires the technician to
make only four voltage measurements. From these four measurements, all of the many internal settings are
determined.
Still, getting the best audio quality will likely require a bit of trial and error. The unit only has control of audio
voltage levels, not input and output impedances. These impedances can dramatically influence the levels.
The Four Voltage Measurements:
An oscilloscope and a communications test set/service monitor are required for the measurements. It is
recommended that the measurements be recorded in units of mV peak-to-peak. Each measurement must be
taken with system modulation at either 60% or 100%, but Midian recommends using 60%
A method for controlling transmit modulation is required for accurate measurements in the TX mode. A small
speaker held in place near the microphone by a rubber band can serve this purpose in most cases. Use a sinewave generator to inject a 1000 Hz tone into the speaker. Adjust the output of the sine wave generator so that the
transmitter produces 60% of rated modulation while PTT is pressed. Note that if the audio source (such as a
speaker) is moved even slightly, the TX modulation may change significantly. Care must be taken to avoid
changing the TX modulation while taking the measurements.
The first two measurements must be taken using a radio that has not been modified. The 2
require that the unit is installed and power is applied to the radio/unit. These measurements must be taken within
15 seconds of powering on the unit. This is because the unit may enter power saving mode after that time.
Measurements made while the unit is in power saving mode will not be valid. The unit ships with the power save
feature enabled by default. The power save feature can be disabled via the programming software so that it will
not interfere with taking measurements, if desired. Please note that the levels provided to the option board are
different between narrow band and wide band.
1. TX Input: This procedure is to determine the audio level that the unit will see at the TX audio pickup point
after it is installed. The unit must be installed and powered-on while making this measurement. Use the TX
Alignment Set-Up procedure and measure the audio level at TP1 on the unit.
2. RX Input: This procedure is to determine the audio level that the unit will see at the RX audio pickup point
after it is installed. The unit must be installed and powered-on while making this measurement. Use the TX
Alignment Set-Up procedure and measure the audio level at TP2 on the unit.
3. In the programming software under audio levels set the TX In to the same level as measured in step 1 and for
a preliminary adjustment set the TX Out for the same level. Set the RX In to the same level as measured in
step 2 and for a preliminary adjustment set the RX Out for the same level. Program the unit.
4. RX Output: This procedure is to determine the audio level that would normally appear at the RX audio
insertion point in an unmodified radio. Using the same RX Alignment Set-Up procedure verify the audio level
at the speaker is still at the same level measured initially in the RX Alignment Set-Up procedure. If not adjust
the RX Out level accordingly.
5. TX Output: The goal of this procedure is to determine the audio level that would normally appear at the TX
audio insertion point in an unmodified radio. Using the same TX Alignment Set-Up procedure verify the
modulation is still at 60%, if not adjust the TX Out level accordingly.
nd
two measurements
16
Programming the Audio Levels:
After determining the audio levels at the audio hookup points, it will be necessary to program the unit to match
these levels. In the programming software, there is a slider control on the Audio Levels Screen for each of the of
four audio hookup points. Locate the column that corresponds to the modulation and units of measurement for
each of the audio hookup points. Adjust the slider bar such that the value appearing in the appropriate column
matches what was measured as closely as possible. Midian recommends the following values based on 60%
modulation:
Be certain to follow standard anti-static procedures when handling any of Midian’s products.
VX-350:
Remove the battery, exposing the option board cover and remove the cover. Plug the unit onto the options
connector. Replace the option board cover and battery. Firmware version 1.0 or higher should be used.
VX-410 & VX-420:
Remove the battery, exposing the option board cover and remove the cover. Remove the dummy board from the
radio and replace with the unit. Replace the option board cover and battery. Firmware version 1.04 or higher
should be used.
VX-450 & VX-460:
Remove the battery, exposing the option board cover and remove the cover. Plug the unit onto the options
connector. Replace the option board cover and battery. Firmware version 1.10 or higher should be used.
VX-600 & VX-900:
Remove the battery, exposing the option board cover and remove the cover. Remove the dummy board from the
radio and replace with the unit. Replace the option board cover and battery. Firmware version 1.22 or higher
should be used.
VX-800:
Remove the battery, exposing the option board cover and remove the cover. Remove the dummy board from the
radio and replace with the unit. Replace the option board cover and battery. Firmware version 1.28 or higher
should be used.
VX-820 & VX-920:
Remove the battery, exposing the option board cover and remove the cover. Plug the unit onto the options
connector. Replace the option board cover and battery. Firmware version 1.19 or higher should be used.
VX-2100 & VX-2200:
Remove the cover of the radio exposing the options connector. Plug the unit onto the Options Connector.
Replace the cover of the radio. Firmware version 1.00 or higher should be used. Note: Some versions of this
radio may have a large diode (D1002) installed under the options connector that can cause a short on the unit. If
this diode is present protect the option board using electrical or kapton tape.
VX-4100 & VX-4200:
Remove the cover of the radio exposing the options connector. Plug the unit onto the Options Connector.
Replace the cover of the radio. Firmware version 1.25 or higher should be used.
VX-4500 & VX-4600:
Remove the cover of the radio exposing the options connector. Plug the unit onto the Options Connector.
Replace the cover of the radio. Firmware version 1.10 or higher should be used.
18
VX-4000, VX-5500 & VX-6000:
Remove the cover of the radio exposing the options connector. Plug the FIF-7A (from Vertex) onto the options
connector per Vertex’s instructions. Then plug the unit onto the FIF-7A. Replace the cover of the radio.
Firmware version 2.02 or higher is required in the VX-4000. Firmware version 0324 or higher should be used in
the VX-5500. Firmware version 4.02 or higher should be used in the VX-6000.
19
RADIO PROGRAMMING
VX-350:
For the VX-350 radio programming software CE-86 v1.01 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. The “Option
Unit” should be read as “FVP-35”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Program the desired button to “Option Switch” or “Option Switch 2”.
Download the program to the radio.
VX-410 & VX-420:
For the VX-410 & VX-420 radio programming software CE-64 v1.00 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. Set the
“Option Board” to “Encryption (Hi Level)”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the “Side 1” or “Side 2” Key to “ACC 1”. Press or Press & Hold may be used. The assigned
button will then control the Emergency ANI. On full keypad versions the A, B, C, or D button may be used.
In the main screen, in the “ENCR” column, every channel must have the flag checked. NOTE: This does not
provide encryption on a per channel basis. On this screen, the “SQ” column must have a figure greater than “0”.
Download the program to the radio.
VX-450 & VX-460:
For the VX-450 & VX-460 radio programming software CE-115 v1.01 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. The “Option
Unit” should be read as “FVP-35”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the mode select button to “Option Switch 1”.
Download the program to the radio.
VX-600 & VX-900:
For the VX-600 & VX-900 radio programming software CE-39 v1.04 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Miscellaneous”. Set
the “Encryption Type” to “Hi Level”. This will also change the “Encryption Device” setting under “Common” >
“Option” to “Yes”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the “TOP SEL Key” (top orange button), “SIDE SEL Key” (top side button), or the A, B, C, or D
(keypad models only) button to “ACC1”. The assigned button will then control the Emergency ANI.
In the main screen, in the “ENCR” column, every channel must have the flag checked. NOTE: This does not
provide encryption on a per channel basis.
Download the program to the radio.
20
VX-800:
For the VX-800 radio programming software CE-31 v1.20 or higher (DOS) or v1.05 (Windows) must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Miscellaneous”. Set
the “Encryption Type” to “Hi Level”. This will also change the “Encryption Device” setting under “Common” >
“Option” to “Yes”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the “SEL1 Key” (top orange button), “SEL2 Key” (top gray button), or the A, B, C, or D (keypad
models only) button to “ACC1”. The assigned button will then control the Emergency ANI.
In the main screen, in the “ENCR” column, every channel must have the flag checked. NOTE: This does not
provide encryption on a per channel basis.
Download the program to the radio.
VX-820 & VX-920:
For the VX-820/920 radio programming software CE-59 v2.10 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. The “Option
Unit” should be read as “FVP-35”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Program the desired button to “Option SW1” or “Option SW2”. Option SW1 is momentary and
Option SW2 is latched.
Download the program to the radio.
VX-2100 & VX-2200:
For the VX-2100 & VX-2200 radio programming software CE-82 v1.04 or higher must be used.
Read the radio with the option board installed. Under the “Common” heading select “Key Function” to set which
key will control the Emergency ANI or Lone Worker on/off. Set the “P1-P4 Short Press” button to “Option SW”.
Download the program to the radio.
VX-4100 & VX-4200:
For the VX-4100 & VX-4200 radio programming software CE-59 v1.01 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. The “Option
Unit” should be read as “FVP-35”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the “P1-P4” or “A” button to “Option Switch 1”.
Download the program to the radio.
NOTE: The VX-4100 & VX-4200 currently does not provide the unit with a COR Input, therefore program the unit
for Wake on VOX feature should be used rather than Wake on COR.
21
VX-4500 & VX-4600:
For the VX-4500 & VX-4600 radio programming software CE-115 v1.01 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. The “Option
Unit” should be read as “FVP-35”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the “P1-P4” or “A” button to “Option Switch 1”.
Download the program to the radio.
VX-4000, VX-5500 & VX-6000:
For the VX-4000 radio programming software CE-35 v2.0.2.0 or higher or CE-49 v3.3.0.0 or higher must be used.
For the VX-5500/VX-6000 radio programming software CE-49 v3.3.0.0 or higher must be used.
Read the radio with the option board installed. Select “Common” from the menu and then “Option”. Set the
“Option Unit” to “FVP-35 (Hi Level Encr)”. This will also change the “Encryption Type” setting under “Common” >
“Miscellaneous” to “Hi Level”.
Under the “Common” heading select “Key Function” to set which key will control the Emergency ANI or Lone
Worker on/off. Set the PF1-PF5 (long or short) button to “Hi-Level Enc SW”.
In the main screen, in the “ENCR” column, every channel must have the flag checked. NOTE: This does not
provide encryption on a per channel basis.
Download the program to the radio.
22
OPERATION
ANI Encode: When the PTT button is pressed, the unit will assert the PTT Output and send the programmed
ANI tones out the TX Tone Output.
ENI Encode: When the Emergency button is pressed, the unit will assert the PTT Output and send the
programmed Emergency ANI tones out the TX Tone Output. Note: On the portable radios the emergency from
the external mic is not supported.
Lone Worker Enable: The Lone Worker feature can be enabled upon power up or using the Mode Input or
Emergency Input.
Lone Worker Reset: If the Lone Worker feature is being used, pressing the PTT or pressing the button assigned
to Lone Worker Reset will reset the Transmit Delay timer. If the Warning Tone Delay time expires the unit will
generate warning tones to indicate to the user that the Lone Worker feature is about to send an ENI if the unit
does not see PTT or Lone Worker Reset activity. If the Transmit Delay time then expires the unit will send the
ENI.
Message Recording on Power Up: If the Auto Record feature is enabled the unit will record a voice message
immediately upon power up. If the radio requires PTT to pass voice to the option board and the Require PTT to
Record box is checked, the unit will wait to record until the PTT is pressed.
Message Recording with Mode Button: Using the button(s) set for controlling record start and stop, press the
button in the manner programmed in Mode Input to start recording. If the radio requires PTT to pass voice to the
option board and the Require PTT to Record box is checked, the unit will wait to record until the PTT is pressed.
When recording is completed, press the button in the manner programmed in Mode Input to stop recording. When
the recording is stopped the unit will play back the recorded message if the Auto Review box is checked.
23
TECHNICAL NOTES
Radio Compatibility: Midian has taken the utmost care to ensure the option board integrates into the radio with
minimal impact to the features of the radio. However, some features may not be available in the radio when an
option board is used. If a feature is not available, please contact Midian to see if the feature can be added.