Support RF Utility

RF Utility is built to be fast, accurate, and free to use. If these tools save you time at work, in the lab, or on site, you can support the project directly.

Why support it?

This site is intentionally lightweight: static pages, client-side calculations, no unnecessary tracking, and no intrusive advertising on the MVP. Support helps cover domain costs, future hosting, and the time required to add more validated engineering tools and reference content.

Donation options are coming soon.

Paid resources

The RF Link Budget Workbook combines a printable PDF with an editable path-loss and link-budget spreadsheet. Both files are delivered manually by email within 24 hours after completed payment.

RF Link Budget Workbook

A printable PDF workbook and editable Excel spreadsheet for free-space path loss and RF link budget planning.

A 10-page PDF with worksheets and worked examples, plus an editable XLSX calculator with frequency and distance units, input checks, received power and fade-margin results.

£9.00
PDF + spreadsheet coming soon
  • ✓ Editable Excel path-loss and link-budget calculator
  • ✓ Frequency and distance unit selectors with input checks
  • ✓ Blank RF link budget worksheet
  • ✓ FSPL formula and quick-reference table
  • ✓ Coax / feeder loss planning section
  • ✓ Receiver sensitivity and link margin checklist
  • ✓ Fade margin guidance and assumptions template
  • ✓ Worked examples for sub-1 GHz, 2.4 GHz, and 3.5 GHz links
Purchase link coming soon View details

Transparency

  • Donations and purchases are optional. The core calculators remain free.
  • When enabled, payments are processed by PayPal, not directly by this website.
  • No payment card details are stored on RF Utility.
  • Support helps fund future tools, reference pages, and site maintenance.
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