Keysight / Agilent / HP 08648-60126 Audio Generator Board

The Keysight/Agilent/HP 08648-60126 is an audio generator board assembly that provides internal audio signal generation and modulation capabilities for the 8648A/B/C/D series of signal generators. Designated as Option 1E2, this board integrates directly into the host signal generator chassis and enables audio-based modulation for RF test applications in manufacturing and receiver testing environments.

Technical Specifications

Frequency Range: 10 Hz to 20 kHz usable, with potential waveform degradation due to bandwidth limitations

Output Voltage: 1 Vpk nominal

Output Impedance: 600 Ω nominal

Form Factor: Board assembly with internal integration to 8648 series chassis

Key Features

Operates as an internal modulation source within the 8648A/B/C/D signal generator

Accepts external audio signals via front panel BNC connector

Delivers 1 Vpk into 600 Ω load impedance

Bandwidth supports audio frequencies from 10 Hz through 20 kHz

Available as exchange assembly (08648-69126) or upgrade kit (08648-60374)

Typical Applications Audio generator boards are used in test environments requiring modulation of RF signals for cordless telephone, pager, and two-way radio development. Semi-automated receiver testing and general RF signal generation applications benefit from integrated audio modulation sources.

Compatibility & Integration This board assembly is designed exclusively for integration into Keysight/Agilent/HP 8648A, 8648B, 8648C, and 8648D signal generators. The board connects internally to the main chassis and does not function as a standalone unit. The 8648 series was manufactured in ISO 9002 registered facilities and reached end-of-life status in March 2007.