Keysight N9917B-209 ERTA Transmission Analysis Module

Overview

The Keysight N9917B-209 ERTA (Extended Range Transmission Analysis) option transforms FieldFox analyzers into a distributed measurement system for RF transmission analysis. ERTA enables accurate gain and loss measurements of long, lossy cable systems and RF components where both ends cannot easily be brought together, such as cables installed on ships or aircraft. The system uses two synchronized FieldFox units—one as a source and reference receiver, the other as a measurement receiver—to achieve high accuracy using InstAlign technology.

Key Features

• Scalar transmission gain/loss measurements (B/R)
• Input power (R) and output power (B) measurements
• Typical gain/loss measurement uncertainty: ±0.6 dB at frequencies ≤ 4 GHz with GPS-locked frequency references
• Dynamic range: 83 dB (f ≤ 4 GHz, GPS-locked)
• Maximum measurable attenuation: 108 dB (f ≤ 4 GHz, GPS-locked)
• Supports long-lossy cable measurements and waveguide insertion loss testing
• Frequency-offset measurement capability for mixers and converters

Applications

• Long-distance RF cable characterization on ships and aircraft
• Waveguide system insertion loss measurement
• RF mixer and converter characterization
• Remote antenna system analysis

System Requirements

• Two FieldFox units (N9913B, N9914B, N9915B, N9916B, N9917B, or N9918B)
• Prerequisite options: 210 (VNA transmission/reflection) and 233 (spectrum analyzer)
• Recommended options: 235 (preamplifier) and 307 (GPS receiver)