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Step 3. Basic usage
Switches and indicators on the ARX-6 deck
Switch / Indicator Function
BATTERY VOLTS
Indicates the internal battery voltage output. Normal operational range: > 12.00 Vdc
When the battery voltage drops below 12.00 Vdc, recharge the unit.
The battery capacity is estimated by the voltage level:
12.9 Vdc @ 100% capacity
12.6 Vdc @ 80% capacity
12.3 Vdc @ 50% capacity
12.0 Vdc @ 20% capacity
BATTERY CHARGING LED illuminates when the battery is charging.
MAIN POWER Enables power to the receiver and the recorder. The receiver and recorder are powered on sepa-
rately. NOTE: Before applying MAIN POWER, set the SQUELCH switch to “SQUELCH” (down).
RECEIVER POWER When the switch is up, power is applied to the receiver electronics. NOTE: When listening to
recordings, switch o the receiver to save battery power.
SQUELCH Controls the squelch feature. When switched to OPEN (up), the feature is disabled. NOTE: Before
applying MAIN POWER, set the SQUELCH switch to “SQUELCH” (down).
LISTEN Selects the audio source. Set to LISTEN RECORDER to playback recordings. Set to LISTEN RECEIVER
to hear live audio from the remote audio transmitter.
VOLUME Adjusts the audio volume level.
CHANNEL
16-position switch to select receiver channels 1 through 16. When a dierent channel is selected,
an audible message is played announcing the current channel. Channel frequencies are shown on
a label inside the deck cover.
EAR PHONE Headset or external speaker plug for use with a standard monaural 1/4” phono jack. When a jack
is plugged in, the internal speaker is disabled.
DIGITAL VOICE
RECORDER module See “APPENDIX A Recorder module usage” on page 3.
Listening to transmitted audio
To listen to audio from a remote VHF transmitter with the ARX-6, do the following:
1. With the ARX-6 charged and powered o, set the SQUELCH switch to SQUELCH (down).
2. Set the MAIN POWER switch up. A battery voltage indication will appear on the voltage display.
Wait for the voltage displayed to stabilize, then verify that the battery voltage is within the
operational range. If the voltage is too low, recharge the unit before continuing.
3. Set the RECEIVER POWER switch up (receiver power on).
4. Set the LISTEN switch to LISTEN RECEIVER (down).
5. Set the VOLUME control knob to point up (mid-range volume level).
6. Set the CHANNEL switch to the frequency of the VHF transmitter you want to listen to. A label
showing each channel frequency is provided inside the deck cover. When you switch to a dierent
frequency, an audible message is played indicating the current channel number.
7. Readjust the VOLUME level as needed.
8. Set the SQUELCH switch up or down to produce the best sound quality.
Recording audio
With the ARX-6 setup to listen to transmitted audio as described above, do the following:
1. Verify that an SD card or USB ash drive is installed in the recorder module, and sucient space is
available in the media to record. NOTE: The recorder uses approximately 1MB of storage space for
each minute of recording (MP3 format).
2. Press (briey) the POWER button on the recorder module to power it on. The recorder display will
illuminate.
3. Press the SD - USB button to select the media you want to record to. The media type selected will
appear on the recorder display.
4. Press the REC button. A large “REC” indicator will appear on the lower line of the recorder display.
5. Press the PLAY/R button to begin recording. A small “REC” will appear on the upper line of the
recorder display, and the media type where the recording is saved will ash.
6. Press the STOP button to stop recording. To resume recording, press the REC button again, then
press the PLAY/R button.
7. To power o the recorder, briey press the recorder POWER button.
Listening to recordings
When recordings are made, they are assigned a recording number that appears on the display during
recording. Recordings are addressed by recording number, then played.
1. With the ARX-6 charged and powered o, set the SQUELCH switch to SQUELCH (down).
2. Set the MAIN POWER switch up. A battery voltage indication will appear on the voltage display.
Wait for the voltage displayed to stabilize, then verify that the battery voltage is within the
operational range. If the voltage is too low, recharge the unit before continuing.
3. Set the RECEIVER POWER switch down (receiver o) to conserve battery power.
4. Set the LISTEN switch to LISTEN RECORDER (up).
5. Press (briey) the POWER button on the recorder module to power it on. The recorder display will
illuminate.
6. Press the SD - USB button to select the media with the recording you want to play. The type media
selected will appear on the recorder display.
7. Set the VOLUME knob on the recorder to a mid-point (up, 12 o’clock position).
8. Press the numerical buttons (0 ~ 9) on the recorder to address the recording number you want to
play. For instance, to choose track number 14, press 1, then 4. The number “14” will appear on the
display.
9. Press the PLAY/R button play the recording. Press STOP to end playback.
10. Adjust the VOLUME control knob to produce the best sound level.
NOTE Recordings are saved on the storage media (SD card or USB ash drive) in MP3 format. These
recordings can be transferred to and played on any MP3 compatible player.
