The Tektronix TTR503A is a portable, two-port vector network analyzer for S-parameter measurements, cable and antenna testing, and RF network characterization from 100 kHz to 3 GHz. This USB-connected instrument operates via PC control with VectorVu-PC™ software on Windows 7/8/10 (64-bit), delivering dynamic range exceeding 122 dB and trace noise as low as 0.006 dB RMS typical. Weighing under 3.5 lbs, it provides a cost-effective platform for educational institutions, research labs, and manufacturing environments requiring field-deployable VNA capability.
Technical Specifications
Frequency & Performance
• Operating range: 100 kHz to 3.0 GHz
• Dynamic range: >122 dB typical; 125 dB (200 MHz to 3 GHz)
• Trace noise (magnitude): 0.006 dB RMS typical, <0.008 dB RMS
• Magnitude stability: 0.008 dB/°C (300 kHz to 3 GHz)
• IF bandwidth: 1 Hz to 500 kHz
S-Parameter Measurement
• Two-port, two-path architecture measuring S11, S12, S21, S22
• Sweep points: 1 to 20,001
• Simultaneous traces: Up to 16
• Markers: Up to 9
• Impedance: 50 Ω
Source & Signal
• Output power: −50 dBm to +7 dBm
• Sweep modes: Linear, Log
– Key Features
• Type-N female connectors on both ports
• Built-in bias tee on each port for active device biasing
• Full 2-port, 2-path calibration with SOLT and TRL support
• Touchstone file import/export for EDA simulation integration
• Offline S-parameter analysis mode without instrument connection
– Typical Applications
Component characterization, filter and matching network analysis, transmission line measurements, antenna impedance and return loss assessment, active device bias-dependent S-parameter testing.
– Compatibility & Integration
USB 2.0 interface to Windows computers. SCPI command interface, Windows API, and LabVIEW driver support enable integration into automated test systems and design workflows.
