The Advantest U4341 is a portable RF field analyzer engineered for on-site RF signal characterization and troubleshooting across mobile communications, broadcasting, and EMC testing applications. Operating from 9 kHz to 2.2 GHz, this battery-powered instrument delivers 100 dB dynamic display range with a 20 dB internal pre-amplifier and 50 Ohm input impedance. The 6-inch color TFT LCD display features ±15 degree tilt adjustment for flexible viewing angles in field conditions.
Technical Specifications
• Frequency Range: 9 kHz to 2.2 GHz
• Input Impedance: 50 Ohm
• Dynamic Display Range: 100 dB
• Internal Pre-Amplifier Gain: 20 dB
• Display: 6-inch color TFT LCD with ±15° tilt mechanism
• Weight: 6.8 kg (analyzer only); 9 kg (with battery pack)
• Power Supply: 100/230 V AC, +10 to +16 V DC, or internal battery
• Battery Runtime: Approximately 1.5 hours (full charge)
• Battery Charging Time: Approximately 1 hour
• Memory: Two JEIDA Ver. 4.1/PCMCIA Rel. 2.0 memory card slots
• External DC Input: XLR connector
– Key Features
• Fixed frequency tuning mode (zero span) with sweep time up to 4.5 ms for PHS single slot observation of 625 µs burst waveforms
• ID Trigger and ID Marker functions for demodulation data display (CI, CS-ID, PS-ID)
• Reduced dB measurement function standard
• Analog TV modulation option with on-screen picture display
• Modular internal architecture with slide-in front panel and addon cards for field serviceability
• Horizontal operation orientation required
– Typical Applications
• Mobile communications signal characterization
• Broadcasting system field measurements
• EMC testing and compliance verification
• PHS burst waveform analysis and troubleshooting
– Compatibility & Integration
Memory card slots enable panel settings storage and measurement data archival. External DC power input via XLR connector supports extended field operations beyond battery duration. Maintain 10 cm clearance around air vents for thermal management.
