RFrequency - LTE and 5GNR EARFCN Calculator APK for Android

Open RFrequency - LTE and 5GNR EARFCN Calculator by Joyanworks to convert channel numbers into downlink and uplink radio frequencies on Android devices. The app implements EARFCN and NR‑ARFCN mathematics and maps legacy systems such as GSM, WCDMA, and CDMA, plus WLAN and broadcasting bands for rapid reference. It delivers precise numeric outputs aimed at RF engineers, 3GPP developers, network testers, and students needing on-the-spot frequency values during field work.

As a calculation utility, the app accepts EARFCN and NR‑ARFCN inputs and returns both downlink and uplink frequencies based on the relevant 3GPP formulae. It also covers legacy cellular families and WLAN and broadcasting bands, listed for quick lookup.

RFrequency turns channel identifiers into actionable frequency values

• LTE and 5GNR channel-to-frequency conversion
• GSM, CDMA, WCDMA mapping
• WLAN and broadcasting band tables

The Android build is aimed at rapid field use with a lightweight footprint

The app is distributed for Android devices and the listing notes a compatible Android version is required. It is described as a lightweight, specialized tool intended for quick access to technical data in the field, which supports workflows where technicians need immediate frequency numbers rather than long setup procedures.

Calculations adhere to standards to support technical accuracy

Frequency outputs are produced using 3GPP definitions for EARFCN and NR‑ARFCN, and the app explicitly states it computes both downlink and uplink results. This alignment with standard formulas makes the tool suitable as a reference during testing and development, giving engineers a predictable numeric basis for site verification and lab validation tasks.

The interface and scope assume RF knowledge, so depth exceeds casual use

The interface is arranged for quick technical lookups, and the target audience is RF engineers, 3GPP developers, testers, and students. Casual users unfamiliar with channel numbering are likely to find the terminology dense; the app favors concise numeric output over guided explanations, which suits users who already understand EARFCN and NR‑ARFCN concepts.

A focused utility for field technicians and RF professionals, with one clear limitation

RFrequency is a practical choice for engineers and testers who need immediate channel-to-frequency conversions during site work; it is not a spectrum planning or network configuration suite. Practical tip: cross-check calculated values against operator documentation before applying them in live environments. In deployment, the app serves well as a rapid verification tool while leaving larger planning tasks to dedicated software.