The Advantest R3477 is a high-performance signal analyzer operating from 9 kHz to 13.5 GHz, engineered for research and development, manufacturing, and field testing in telecommunications and related sectors. This instrument delivers exceptional sensitivity with average display noise levels as low as -168 dBm/Hz (1 GHz, preamplifier on) and dynamic range up to 162 dB. The analyzer provides broadband modulation analysis across a 25 MHz bandwidth as standard, with optional support for 3GPP W-CDMA/HSDPA and 3GPP2 cdma2000/1xEV-DV protocols.
Technical Specifications
Frequency Coverage: 9 kHz to 13.5 GHz
Sensitivity & Noise Performance:
• Average Display Noise Level: < -156 dBm/Hz @ 2 GHz (preamplifier off); +6 dBm (200 MHz to 3.3 GHz); typical +9 dBm
• Third-Order Intermodulation (TOI): > +21 dBm (1–2 GHz); > +22 dBm (2–3.3 GHz)
• 2nd Order Harmonic Distortion: < -60 dBc to 0 Hz: 2 ms to 2000 s
Amplitude Performance:
• Display Range: -120 dBm to +30 dBm
• Amplitude Accuracy: ±0.4 dBm (50 MHz–2.5 GHz) to ±2.0 dBm (7.5–13.2 GHz)
• Maximum Input Power: +30 dBm; +13 dBm (preamp on)
– Key Features
• Broadband modulation analysis function (25 MHz bandwidth) standard
• Optional 3GPP and 3GPP2 modulation analysis modules
• Optional WiBro Analysis Software available
• LAN interface for remote operation
• Dual USB 1.1 interfaces for data export (PNG, BMP formats)
• GPIB and video interfaces
– Typical Applications
Wireless communications testing, adjacent channel leakage ratio (ACLR) measurement, multicarrier signal analysis, and compliance verification for 3G/mobile standards.
– Compatibility & Integration
Remote control via LAN and GPIB; data logging through USB storage interfaces.


















