HP Z3805A GPS Frequency/Time Receiver Calibrator

The HP Z3805A is a high-precision GPS frequency and time receiver designed to provide extremely accurate time and frequency outputs. It is used as a reference standard for calibrating and synchronizing systems, such as wireless base stations in CDMA networks.

Main Features

• Precise Frequency Standard: Provides two 10 MHz outputs and two 1PPS outputs with a frequency accuracy better than 1×10^-12.
• GPS Reception: Equipped with 8 GPS receive channels and 6-channel parallel tracking, supporting both C/A code and L1 carrier signals.
• Holdover Mode: Automatically switches to holdover mode if the satellite signal is lost, maintaining system synchronization for up to 24 hours (with slightly reduced accuracy).
• Power Supply: Operates on a DC input voltage of 19.5–30 V.
• Enhanced Stability: Often used in conjunction with an ultra-precise, dual-oven-controlled quartz oscillator (e.g., HP 10811-60165) to ensure exceptional stability.
• Calibration Standard: Serves as a 10 MHz frequency standard for high-precision calibration applications.

Applications

This device is widely used for:

• Synchronizing wireless base stations and communication networks
• Serving as a primary frequency standard in calibration laboratories
• Providing reliable time and frequency outputs for test and measurement equipment

Thanks to its advanced GPS reception, extremely high frequency accuracy, and robust holdover mode, the HP Z3805A is an indispensable tool for ensuring precise synchronization and calibration in high-performance measurement systems.