The Keysight (formerly Agilent) N9923A FieldFox is a highly accurate and rugged handheld RF Vector Network Analyzer operating from 2 MHz up to 4 GHz or 6 GHz. Designed for demanding field environments, it is the industry's only handheld network analyzer to meet MIL-PRF-28800F Class 2 compliance with no exceptions. The N9923A features built-in QuickCal technology, enabling precise calibration without a mechanical cal kit, and delivers superior measurement stability over time and temperature. While standard functionality provides S11 and S21 measurements, Option 122 expands its capability to full 2-port S-parameters. The instrument supports additional options for cable and antenna analysis, vector voltmeter measurements, and USB power sensor integration.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | LAN (10/100Base-T), 2x USB 2.0 (Host), 1x mini-USB (Device) |
| Display | 6.5-inch color VGA (640 x 480) transflective LCD, LED backlit |
Physical
| Parameter | Value |
|---|---|
| Power Supply | AC Adapter: 100-240 VAC, 50/60 Hz; Battery: 10.8 V Lithium-Ion |
| Operating Temperature | -10 to +55 |
| Dimensions (W×H×D) | 292 x 188 x 72 |
| Weight | 2.8 |
General Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 2 MHz to 4 GHz (Option 104) / 2 MHz to 6 GHz (Option 106) |
| Data Points | 101, 201, 401, 601, 801, 1001, 1601, 4001, 10001 |
Network Analyzer Specifications
| Parameter | Value |
|---|---|
| Measurement Parameters | T/R measurements (S11, S21 magnitude and phase) standard; Full 2-port S-parameters (S11, S21, S12, S22) with Option 122 |
| Calibration Methods | QuickCal (Option 112), Enhanced response cal, Full 2-port cal, Mechanical cal |
Test Port Characteristics
| Parameter | Value |
|---|---|
| Connector Type | Type-N (female) |
| Impedance | 50 Ω |
Optional Measurement Capabilities
| Parameter | Value |
|---|---|
| Vector Voltmeter | 2 MHz to 4 / 6 GHz, compares phase and electrical length, single and dual channel (A/B, B/A) measurements (Option 308) |
| USB Power Sensor Support | 9 kHz to 24 GHz, requires external U2000 Series USB power sensor (Option 302) |
Display and User Interface
| Parameter | Value |
|---|---|
| Display Type | Transflective color TFT LCD (anti-glare) suitable for outdoor use |
| Display Size | 6.5 in |
| Display Resolution | 640 x 480 (VGA) |
Connectivity and Storage
| Parameter | Value |
|---|---|
| External Media Support | SD Card, USB flash drive |
Power Specifications
| Parameter | Value |
|---|---|
| Battery Type | Lithium-Ion (4.6 Ah) |
| Battery Operating Time | 4 hours (typical) |
Interfaces & Connectivity
| Parameter | Value |
|---|---|
| Network Interface | 10/100Base-T Ethernet (RJ-45) |
| Programming Interface | SCPI via LAN and USB |
Options & Upgrades
| Parameter | Value |
|---|---|
| Time Domain Analysis | Supported via Option 010 |
| Full 2-Port S-Parameters | Supported via Option 122 (adds S12, S22) |
| QuickCal | Supported via Option 112 |
Environmental & Standards
| Parameter | Value |
|---|---|
| Shock and Vibration standard | MIL-PRF-28800F Class 2 |
| Safety Compliance | IEC/EN 61010-1 |
| EMC Compliance | IEC/EN 61326-1 |
Frequency
| Parameter | Value |
|---|---|
| Frequency Resolution | 1 Hz |
Software & Control
| Parameter | Value |
|---|---|
| Maximum Traces | 4 |
| Markers | 6 per trace |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -51 °C to 71 °C |
Configuration Options
| Parameter | Value |
|---|---|
| Available Frequency Options | 4 GHz (Option 104), 6 GHz (Option 106) |
Technology
RF Vector Network Analysis
Applications
Field RF testing, component characterization, cable and antenna testing, distance-to-fault (DTF) analysis, base station installation and maintenance