HP 8657A - 100kHz-1.04 GHz Signal Generator with Option 001

The HP 8657A is a synthesized signal generator designed for testing AM, FM, and pulsed receivers, as well as various RF components. It offers a frequency range from 100 kHz to 1.04 GHz, making it suitable for a wide array of RF testing applications.

Key Features

• Frequency Range: 100 kHz to 1.04 GHz
• Output Level Range: +13 dBm to –143.5 dBm into 50 Ω
• Modulation Capabilities: Supports AM and FM modulation
• Low Residual FM: Ensures minimal measurement error during hum and noise tests
• High Spectral Purity: Provides low single-sideband phase noise, essential for adjacent channel selectivity measurements
  
  

Option 001 - High-Stability Time Base

The Option 001 upgrade enhances the standard time base of the HP 8657A, offering improved frequency stability. This is particularly beneficial for applications requiring precise frequency accuracy over extended periods. The high-stability time base significantly reduces aging rates and temperature-related frequency variations.

Specifications with Option 001

• Aging Rate: Approximately 1.5 × 10^–8 parts/day after 10 days
• Temperature Stability (0 to 55 °C): Approximately 7 × 10^–9
• Line Voltage Influence: Approximately 2 × 10^–9 (+5%, –10%)

These enhancements make the HP 8657A with Option 001 suitable for demanding applications where long-term frequency stability is crucial.