Privacy & site information

Calculator inputs

These six calculators run JavaScript in your browser. This release does not upload your entered values or results, place them in URLs, or save them in cookies, local storage or a database. Values remain in the open page; your browser may independently restore page or form state.

Tool 06 copies a calculation record to your clipboard only when you choose “Copy results”. If clipboard access fails, it selects the record for manual copying. Your device or clipboard software may retain or synchronise what you copy.

Hosting and external links

Loading this website sends normal connection and request information, such as your IP address, requested page, browser information and request time, to Cloudflare, the hosting provider. This is separate from calculator inputs. Hosting and security services may process or retain that information under the site operator’s Cloudflare configuration and Cloudflare’s policies.

This release includes no analytics, advertising, tracking scripts, third-party fonts, accounts or submission forms. The calculators do not use cookies. Cloudflare security features may set cookies depending on the hosting configuration. See Cloudflare’s privacy policy for its processing information. External reference links take you to other providers with their own policies.

Availability and engineering assumptions

Calculations can continue after a page has loaded without further network access. A fresh visit or reload still requires the page and assets to be available; this hosted release does not install an offline cache. Each tool shows its equations, numerical limits and model assumptions. Results depend on the supplied inputs and do not establish equipment ratings, installation performance or regulatory compliance.

Release: Engineering Workbench v0.6.0, prepared for rfcalcs.com on 25 October 2026. Six tools: RF power and units; frequency, period and wavelength; feeder loss; VSWR and impedance; receiver performance; RF link budget.