AGILENT 70429A-K92

The AGILENT 70429A-K92 is a microwave spectrum analysis plug-in module that delivers precision signal acquisition and processing for high-frequency RF measurements. It integrates with Agilent phase noise and RF test systems to enable narrow-resolution spectral analysis across an extended frequency range. The module features dual independent frequency dividers with programmable division ratios (1, 2, 4, 8, or 16 per divider, maximum combined ratio 256) and supports both manual and external logic control via 15-pin D-connector interface.

Manual mode operation is enabled through front-panel switches (I/E and E/D); external control mode utilizes dedicated logic lines for divider selection and fine output power adjustment, with default idle state of 5V logic '1'. The module accepts 50Ω SMA-female RF inputs and outputs, draws DC power via external supply (e.g., Agilent 6236B or E3630A) through the supplied DC cable, and disables RF output when either or both divider control lines are set to logic '1'. External control implementation requires switch units capable of providing open-circuit (logic '1') or ground (logic '0') signals across six power adjustment lines and three lines per divider.

Technical Specifications

• RF Input/Output: 50Ω, SMA-female connectors


• DC Power Input: 15-pin D-connector-female


• External Control Interface: 15-pin D-connector-female with 3 control lines per divider and 6 output power adjustment lines


• Control Logic Levels: Default 5V (logic '1'); external control accepts open or ground (logic '0')


• Frequency Division: Two independent dividers (A and B), each programmable to divide by 1, 2, 4, 8, or 16; maximum combined division ratio 256

Key Features

• Narrow resolution bandwidths for detailed spectral characterization


• Stable performance across wide frequency range


• Dual independent divider architecture with fine output power control


• Manual or external logic-controlled operation modes


• Requires external DC supply (Agilent 6236B, E3630A, or equivalent)

Typical Applications

• Advanced spectrum monitoring and analysis


• RF component and subsystem evaluation


• RF system testing and validation


• Precision signal acquisition in phase noise measurement systems

Compatibility & Integration Designed as a plug-in module for Agilent E5505A Phase Noise System and related Agilent measurement platforms. Operates in conjunction with optional 70429AK95 frequency divider accessory.