Systron Donner 6245A frequency counter

Product Description

Systron Donner 6245A 100 MHz Frequency Counter

This is a reliable, general-purpose frequency counter designed for bench and rack-mounted applications. With a 100 MHz range and optional GPIB interface, it is suitable for measuring signals from oscillators, transmitters, and digital circuits in development, production, or service environments.

Key Specifications:

• Frequency Range: 10 Hz to 100 MHz

• Input Channels: Likely 1 or 2 inputs (A and B), 50 Ω / 1 MΩ selectable impedance

• Sensitivity: Typically <25 mV RMS

• Interface: Optional GPIB/IEEE-488 (verify if installed)

• Display: 8- or 9-digit LED readout

• Timebase: High-stability internal oscillator; external reference input

Applications:

• Measuring crystal oscillator or synthesizer output frequency

• Production testing of RF modules or digital boards

• Educational or hobbyist electronics lab

• Integration into automated test systems (if GPIB-equipped)