HP / Agilent 59307A VHF Switch

The HP/Agilent 59307A is a dual-channel VHF signal router built around two independent, bidirectional Single Pole 4-Throw (SP4T) relay switches. Each switch handles DC to 500 MHz signals at 50-ohm impedance with sub-nanosecond rise time capability, making it suitable for fast-edge pulse routing, RF multiplexing, and automated test signal distribution. Control via front-panel pushbuttons or HP-IB remote command delivers flexible operation in bench and system environments.

– Technical Specifications

• Frequency Range: DC to 500 MHz
• Impedance: 50 ohms
• VSWR: 40 dB at 100 MHz
• Rise Time: 1 nanosecond (optimized for fast pulse waveforms)
• Relay Contact Rating: 0.5 A at 25 V
• Relay Settling Time: 20 ms
• Switching Rate: 50 channels/second maximum
• Power Input: 115 V or 230 V ±10%, 48–440 Hz
• Power Draw: 6 VA maximum
• Fuse Rating: 0.5 A slow-blow (both supply voltages)
• HP-IB Bus Load: 3.3 mA per line

– Key Features

• Dual independent SP4T switches with common and four I/O ports per channel
• Manual selection via illuminated pushbutton indicators on front panel
• Remote programming via HP-IB (IEEE 488) with configurable address switches
• Listen-only HP-IB operation; accepts ASCII commands (‘A’/’B’ for switch, ‘1’–’4′ for position)
• Ten BNC RF connectors: five per switch (common + four I/O)
• Compact 4″ × 8.38″ × 11.6″ form factor, 2.64 kg net weight

– Typical Applications

• RF signal routing and multiplexing in automated test systems
• Fast-pulse signal distribution for time-domain measurements
• Multi-channel signal selection in lab and production environments
• Integration into HP-IB-controlled measurement racks

– Compatibility & Integration

Full compatibility with HP-IB (IEEE 488) command sets enables integration into legacy and modern test systems. Configurable rear-panel addressing supports multi-unit networked topologies. PC control via HP-IB interface cards with appropriate driver software is supported.