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Operational Verification of the Console

Basic procedure to check the connection:
  1. Use a signal source (microphone, player, etc.).
    • On channels 4 or 5, correctly select the input (BAL/LIN).
    • Common error: absence of signal due to incorrectly assigned input.
  2. Press the CUE button on the input channel.
  3. Select CUE as the monitoring source and adjust the CUE level.
    • The audio should be heard in headphones (and in monitors if assigned).
To send the signal on-air:
  1. Press PGM on the channel to send it to the main output.
  2. Open the channel fader to the desired level.
    • The signal will be sent on-air and displayed on the program VU meters.
The gain must be adjusted on each channel (except USB) using the gain presets on the panel, so that the normal working position of the main fader is –15 dB (gray zone).

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Program Recording

The DX series consoles feature two stereo output buses:
  • PGM (Program): Signal sent on-air.
  • REC (Recording): Auxiliary signal, typically used for recording.
Each channel can be assigned to PGM or REC using assign buttons, enabling recording while broadcasting a different signal.

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Recording via USB

The PGM and REC signals are available on the computer via USB. On Windows©:
  • USB Recording Device 1 → corresponds to USB-1, PGM signal.
  • USB Recording Device 2 → corresponds to USB-2, REC signal.
On the computer:
  • Configure the recording application to use the appropriate device.
On the console:
  • In monitoring, assign REC to Control Room or Studio speakers if you want talent to hear the recording.
  • Remove from PGM and assign to REC the channels to be recorded (e.g., microphones). → These channels will NOT go on-air.
  • The station remains on-air with another channel (e.g., Line-1 on PGM).
Level adjustment:
  • Check levels on the console’s REC VU meters and in the software.
  • Adjust from the console using the channel fader → 0 VU = –15 dBfs.
The USB-1 and USB-2 recording devices have no software input level control.
Adjustment is always made on the console.
Monitoring:
  • Talent can monitor via headphones or speakers.
  • To play back recordings: assign the corresponding channel to REC on the PC.
Avoid feedback loops on the PC. Mute potential USB-2 (REC) returns in the recording software (or Windows).
When finished, reset all controls to their original positions.

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Phone Line Recording

The TELCO channel can be assigned to any output using the PGM/REC button. Example: recording a phone report while music is playing on-air.
  • Assign the hybrid and a microphone to the REC output.
  • Proceed with communication as described in Hybrid Channel.
  • Assign monitoring to REC to monitor the conversation.