Attenuator

Tim E. Burrow Utilities iPhoneiPadiPod touch

Attenuator is a free Utilities app for iPhone and iPad by Tim E. Burrow. Rated 5.0/5 from 8 ratings. Requires iOS 17.6. Updated July 1, 2026.

Rating: 5.0; 8 ratings
Price: Free; on the App Store
Size: 1 MB; Age 4+
Updated: Jul 1; 2026 · v5.50

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About Attenuator

Attenuator is a utility for anyone working with radio frequency sources and needs to know power and voltage after attenuation. You can specify an input voltage (Vpp or Vrms) and dB of attenuation to get the output voltage, power and attenuation. The impedance can be specified, typically 50Ω for most systems. There is a new emphasis on NMR utility, with options for calculating pulses based on reference power and pulse length. Powers are in Watts, dBm, and dB values. Measure local magnetic field to check stray static fields from magnets. See the local barometric pressure, useful if the magnet boil-off is high

Ratings & reviews

5.0

8 ratings

5 ★ 100% 4 ★ 0% 3 ★ 0% 2 ★ 0% 1 ★ 0%

What’s new

Version 5.50 · Updated July 1, 2026

- Added Spanish and Korean localizations - Improved translations across the app, especially for NMR, RF power, magnetic field, and accessibility text - Improved VoiceOver support for Field, Barometer, Power, Pulse, and Settings - Improved spoken units for VoiceOver, including dB, dBm, Vpp, Vrms, watts, tesla, pressure units, and pulse durations - Improved Dynamic Type and long-language layout on the Field, Barometer, Power, and Pulse tabs - Improved the Power calculator, including attenuation slider behavior, dB/dBm entry, unit prefixes, keyboard handling, and saved settings - Improved the Pulse calculator, including localized labels, NMR pulse/power wording, keyboard handling, and long text layout - Improved the magnetic field and barometer screens, including safer warning text, barometer unit selection with VoiceOver, and better error handling - Removed deprecated UI code paths and fixed warnings - Improved UI and general reliability - Ad-free and fully unlocked, with no in-app purchases

App privacy

The developer, Tim E. Burrow, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

Attenuator is a free Utilities app for iPhone, iPad and iPod touch, developed by Tim E. Burrow. It is rated 5.0 out of 5 from 8 ratings on the App Store, requires iOS 17.6 or later, is 1 MB to download and is available in 6 languages. It was first released on April 21, 2010 and last updated on July 1, 2026.

Category: Utilities
Rating: 5.0 / 5 (8 ratings)
Price: Free
Version: 5.50
Size: 1 MB
Requires: iOS 17.6 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, French, Japanese, Korean, Chinese, Spanish
Age rating: 4+
Released: April 21, 2010
Last updated: July 1, 2026
Developer: Tim E. Burrow

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Alternatives to Attenuator

Looking for apps like Attenuator? Here are 6 similar apps on the App Store. The highest rated is Spectrolite (4.8/5), and all 6 are free to download.

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