# FieldFox — Remote control and monitoring

> Remote control and monitoring for Keysight FieldFox handheld analyzers. (iPhone/iPad app by Keysight Technologies, Inc..)

- Source: https://appshunter.io/ios/app/fieldfox/id635077328 (this page in markdown: same URL + `.md`)
- Developer: [Keysight Technologies, Inc.](https://appshunter.io/developer/903911491)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.00/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 27 MB
- Languages: American English
- Released: 2013-06-03
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fieldfox/id635077328/reviews.md

## What is FieldFox?

For Use with Keysight Technologies FieldFox handheld analyzers. Provides remote viewing capability for FieldFox instruments, or full remote control if the FieldFox is outfitted with instrument remote connectivity option 030. Contact Keysight Technologies for details on option 030. 

The FieldFox Remote Viewer application is used to remotely monitor or remotely control a FieldFox instrument. Connect FieldFox to wired LAN and power, then connect your IOS device to WIFI or cellular to remotely monitor or control the instrument. 

Once connected, the instrument display is mirrored to the IOS device. If the FieldFox has been outfitted with instrument option 030, full remote control can be performed from the iPod, iPhone or iPad (running IOS 7.1 or later). Portrait and Landscape orientations are supported with Landscape providing a full screen view of the data screen (with popup keyboard), and portrait providing a visual representation of the FieldFox display and keyboard together. 

Included in the app is a variety of online resources including product manuals, brochures, app notes, and training videos. Product documentation can be viewed and shared with third party apps such as iBooks, for offline storing and viewing. (Note WIFI or cellular connection required for all documentation content except the Intro Video, which is locally stored in the app).

Connections to the remote FieldFox instrument can be made from anywhere the IOS device has network connections that can reach the instrument LAN connection. 

Note: Using cellular connectivity may produce slower connection response than WIFI, and may incur carrier data usage charges. 

Note: For remote viewing or remote control, a FieldFox instrument (not included) is required. Contact Keysight via the support link for information on how to purchase a FieldFox instrument for use with this program. 

Note: For remote viewing only, no additional FieldFox instrument licenses are required. For full remote control, FieldFox instrument option 030 is required. Contact Keysight Technologies for full details on how to outfit a FieldFox with this option.

## Key features

- Remote viewing of FieldFox instruments
- Full remote control with option 030
- Instrument display mirroring
- Access to product manuals and brochures
- View and share documentation
- Portrait and landscape orientation support

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/fieldfox/id635077328/reviews.md

### 5/5 — save/recall key can not work

*2022-02-17, version 3.5*

save/recall key can not work

### 4/5 — Great app but iOS update has broken it. Now unable to connect.

*2019-11-16*

Great app for using in the field. I use this for displaying VVM and VNA when phase cutting cables and tuning antennas insitu on Doppler VOR. Not sure that i would feel comfortable carrying the iPad pro up a tower though.

Recent iOS update has broken this app. Thank you Apple for making my day more difficult than need be.

### 5/5 — Great app to use with my FielfFox!

*2014-05-15, version 1.1*

This app really helps me to maximize the use of my FieldFox. Now I have a great box and a great remote interface!

### 5/5 — good if you have a use

*2013-12-14, version 1.0*

Most people wont have a use for this but it's really good!

## Frequently asked questions about FieldFox

### What is FieldFox used for?

FieldFox is used to remotely view or control Keysight FieldFox handheld analyzers from an iOS device. It mirrors the instrument's display and allows for full remote control if the instrument has the required option.

### Does FieldFox require a FieldFox instrument?

Yes, a FieldFox instrument is required to use FieldFox for remote viewing or control. The app itself does not include the instrument.

### What is needed for full remote control with FieldFox?

For full remote control, the FieldFox instrument must be outfitted with instrument remote connectivity option 030. Remote viewing is available without this option.

### Can I access documentation through FieldFox?

Yes, FieldFox includes a variety of online resources like product manuals, brochures, app notes, and training videos. Most documentation requires a network connection to view.

### What devices support FieldFox?

FieldFox supports iPhone, iPad, and iPod devices running iOS 7.1 or later. It offers both portrait and landscape orientations for viewing.

### Is FieldFox free to use?

Yes, FieldFox is available for free. However, a FieldFox instrument, which is not included with the app, is required for its functionality.

### How often is FieldFox updated?

The latest version of FieldFox is 3.5, last updated on September 7, 2021. Updates typically include bug fixes and feature enhancements.

### Does FieldFox have ads?

No, FieldFox does not contain advertisements. It is a free application designed for professional use with Keysight instruments.

## Version history (last 5 releases)

### 3.5 — 2021-09-07

Misc bug fixes and improvements for performance.

### 3.4 — 2019-08-21

Updated documentation to reflect new FieldFox models now available. Minor improvements and bugfixes.

### 3.2 — 2017-10-05

New documentation now available, as well as bug fixes and stability improvements.

### 3.1 — 2015-09-03

o Correct an issue where External USB GPS was not being supported on FieldFox
o Fix a bug with CSV file output format for Mapped data.
o General stability enhancements.

### 3.0 — 2015-08-03

- New download feature for screenshots, trace data, and instrument save states. Retrieve the file from FieldFox and email from your iOS device.

- New signal strength/mapping feature. Your FieldFox equipped with a Spectrum Analyzer and Option 30 can be used to measure power and plot results directly to a map for determining signal strength at location. Good for interference hunting with your directional antenna. 

Mapped data can be output to KML files or CSV files for import to map applications like Google Earth or Google Maps.

New map features include:
Three selectable SA marker based measurements.
Auto-Map-Marking with configurable time between marks.
Icon color can be mapped to measured power for visual indication.
Power, Freq, Heading, Tilt, GPS Coord all stored in data.
Exportable data in KML or CSV format.
Selectable GPS (iOS GPS or FieldFox GPS).

Note: New mapping features require FieldFox option 030 and GPS capable iOS device or FieldFox GPS device  (internal or external supported).

- General improvements and bugfixes for stability and ease of use.

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## More apps by Keysight Technologies, Inc.

- [MicroWave Calculator](https://appshunter.io/ios/app/microwave-calculator/id369705771)
- [Engineering Calc](https://appshunter.io/ios/app/engineering-calc/id415598261)
- [Tips and Tricks - Keysight Oscilloscopes](https://appshunter.io/ios/app/tips-and-tricks-keysight-oscilloscopes/id416812592)
- [Keysight Pocket Guide](https://appshunter.io/ios/app/keysight-pocket-guide/id579918710)
- [Electronics Handbook](https://appshunter.io/ios/app/electronics-handbook/id723317441)

All apps by Keysight Technologies, Inc.: https://appshunter.io/developer/903911491

## Related topics

[Field Monitoring](https://appshunter.io/ios/topics/field-monitoring)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*