RDL PT-ASG1 Portable Audio Signal Generator

Portable or benchtop audio oscillator used in applications requiring a stable audio signal source for system verification, alignment and testing. The internal oscillator operates at 700 Hz allowing aural monitoring of the signal without the fatigue associated with oscillators running at a higher frequency. The 700 Hz signal falls in the passband of an audio system and is easily distinguished from either 400 Hz or 1 kHz signals. The oscillator output is compared against an internal temperature-stable reference in a gain controlled loop that adjusts the final output level with stability for accurate audio testing. Two outputs are provided. The XLR balanced output is front-panel switch selectable for Mic or Line level. Operates either from an internal 9V battery or from an external 12 Vdc to 30 Vdc supply. Test leads and a bench top support bracket are included.

Features:

• Stable Portable or Bench Audio Generator
• Selectable Mic or Line Level Output
• Precision Audio Reference Level
• Connectorized Balanced and Unbalanced Outputs
• Operation from Standard 9 Volt Battery or 24 Vdc
• +4 dBu or +6 dBu Precision Stable Reference Level
• Typical Performance:
  • Outputs (2): XLR (front-panel selectable mic or line), Phono (consumer level)
  • Balanced Output Level (Selectable):
    • Line: +4 dBu or +6 dBu*(2.5 kO load)
    • Mic: -46 dBu (2.5 kO load, 50 dB below +4 dBu)
    • Unbalanced Output Level: -10 dBV
  • Oscillator Frequency: 700 Hz nominal
  • Output Stability: Better than 0.01 dB
  • Reference Level Preset: Switch-selectable +4 dBu or +6 dBu
  • Power Requirement: 9 V internal or 12 to 30 Vdc external @ 20 mA