The HP/Agilent 83525A is an RF plug-in module for the 8350A/B sweep oscillator mainframe, delivering signal generation across 0.01 to 8.4 GHz. This dual-band instrument combines wide frequency coverage with leveled output control, internal crystal markers, and full HP-IB programmability to support RF testing, device characterization, and precision frequency measurements.
## Technical Specifications
• **Frequency Range:** 0.01 to 8.4 GHz (10 MHz to 8.4 GHz)
– Lower Band: 0.01 to 2.1 GHz
– Upper Band: 2.0 to 8.4 GHz
– Band switch point: 2.0–2.1 GHz with 80 dB with Option 002 (70 dB attenuator)
– Power level accuracy: ±1.5 dB
– Output flatness: ±1 dB (lower band)
• **Frequency Accuracy (25°C):** ±12 MHz across full band
• **Sweep Performance:**
– Minimum sweep time (full band): 17 ms
– Power sweep capability for single-test response measurements
• **Crystal Markers:** Internal 10 MHz and 50 MHz markers (below 2 GHz)
– 1 MHz marker width: ±100 kHz
– 10 MHz marker width: ±200 kHz
– 50 MHz marker width: ±300 kHz
– LED indicator for marker coincidence
• **Frequency Reference Output:** 1 V/GHz nominal; 10 mV rear panel BNC output
## Key Features
• Dual-band architecture with automatic switching for continuous 0.01–8.4 GHz coverage
• Leveled power output with slope compensation for high-frequency loss mitigation
• External marker input for amplitude or Z-axis marking synchronized to sweep frequency
• HP-IB programmable with 0.1 dB front panel digital resolution for power setting
• Compatible with HP 8755 Swept Frequency Response Test Set for enhanced measurement capability
## Typical Applications
RF device characterization, frequency response testing, swept-frequency measurements, and precision calibration across microwave bands.
## Compatibility & Integration
Designed as a direct plug-in for HP/Agilent 8350A/B mainframes. Full remote control via HP-IB interface. Internal crystal frequency references and external marker inputs enable integration with legacy and modern test systems.
