FAQ

Is FreqSense free?

Yes. It is a free tool on Squaresmile Tools; a free account opens it — a 30-second signup, no card. There is no paid tier of FreqSense. If you want a measured scan at the venue, there is the separate, paid KlarFunk desktop scanner.

Does FreqSense know which TV channels are on air where I am?

No. It draws the region's TV-channel grid — where TV channels sit — not which local transmitters are on air. Only a scan shows what is actually in the room. Import one from a scanner's CSV or from KlarFunk before you trust a window. See Import a scan.

Which regions and countries are covered?

The spectrum selector has eight regions: Germany (BNetzA), the United Kingdom (Ofcom), the United States (FCC), the EU (generic CEPT), France (ANFR), Japan (MIC), Australia (ACMA) and Canada (ISED). Each has its own TV-channel grid, mobile bands and allowed ranges.

The regulatory table covers fourteen countries: those eight plus Austria, Switzerland, the Netherlands, Belgium, Italy and Spain. Spain is not its own spectrum region — plan with EU and read Spain's row (ES) in the table.

Is the regulatory data authoritative?

No. FreqSense is a planning aid, not legal advice. Each band names its source — the regulator's order, linked — and a valid until date where the order sets one; each country shows the date its data was last checked (as of). Rules change: open the linked order and check the regulator's current version before you transmit.

Which part of the spectrum does it cover?

400–960 MHz, with zoom presets for PMSE (470–694), UHF (470–960) and the full range. Bands outside it — in Germany, for example, 174–230 MHz, 1350–1400 MHz and 1785–1805 MHz — are listed in the regulatory table but are not on the spectrum, so FreqSense does not coordinate them.

Does it work with my Shure or Sennheiser software?

Yes. Export Wireless Workbench (WWB) and Wireless Systems Manager (WSM) CSV files for import, and import their plans back. Open an exported file in WWB or WSM and check it there before sending it to the receivers. See Export to WWB, WSM and paper.

Which scan files can it read?

RF Explorer's CSV export, Shure WWB6 and WWB7 scan CSVs, Rohde & Schwarz FSH exports and any two-column frequency / level file in MHz and dBm. Files with ; separators and decimal commas work. Up to three traces at once. See Import a scan.

Do I need hardware?

Not to plan. To see what is on air in the room, you need a scan — from any scanner that writes one of the formats above, or from KlarFunk.

Which intermod orders are checked?

3rd order — 2A−B from two transmitters and A+B−C from three — and 5th order (3A−2B). The packer and the plan check both use them, including a product that lands exactly on one of your channels. The Intermod Calculator additionally offers the 2A+B−2C family.

Can I coordinate mics and in-ears together?

Yes. Coordinate one band, then pick the next and coordinate again. Each band is placed clean against the others, and re-coordinating one band leaves the others where they are. Rows are Mic or IEM, and each band can keep backups. See Find free windows and coordinate channels.

How many channels?

1 to 64 per band, at 200, 400 or 800 kHz minimum spacing, on the 25 kHz raster.

Do my plans sync between devices?

Yes. Saved plans, the theme, the pattern overlay and the tool language sync through your account. The working plan on screen survives a reload. See Account sync.

I cleared or loaded a plan by mistake.

Press Undo in the toast. Clear, Load and the plan imports (JSON, WWB, WSM) offer it and put the previous plan back exactly.

Does it work offline?

Once the page is open, planning keeps working without a connection. Saved plans stay on the device and sync when the connection is back.

Which languages does the tool speak?

Eleven: English, German, Spanish, French, Italian, Japanese, Korean, Dutch, Polish, Portuguese and Chinese, chosen from the platform language picker.

Can it monitor my receivers during the show?

No. FreqSense plans and analyses scans; it has no receiver telemetry. Watch the RX RF and AF meters at FOH or monitor world, as the field notes say.