Choosing What to Scan – Frequency Range vs Custom List

Scanner mode sweeps in one of two ways, switched with the Frequency range / Custom list toggle.

Frequency Range

Set a Band (MHz) low and high value, then choose what to sweep within it via the Channels dropdown:

• Known — only frequencies already in the database within your band.
• All — every step-spaced frequency across the band, known ones labelled, unknowns shown as raw frequencies.
• New — like All, but skips anything already known, so you only catch unlisted activity.
• Bands — ignores this card’s own range entirely and instead sweeps every band you’ve ticked “Scan” on the Bands tab, each at its own settings.
• Any named custom list you’ve created also appears here as a shortcut — picked this way, it’s treated as exact aviation channels only (ignoring any range entries the list might contain), which is why you’ll be prompted to switch to AM mode if it isn’t already, since aviation lists are assumed to be AM.

Custom List

Switch the toggle to Custom list and pick one from the dropdown instead — this sweeps the list properly, respecting each entry’s own type: single frequencies are scanned as exact channels, and range entries (e.g. “144–146 MHz”) are swept at your step size, letting one list mix individual aviation channels with a swept amateur block, each keeping their own mode.

Pulling In Bands

There are two distinct ways bands feed into Scanner mode:

• Use Band (on the Bands tab) — a one-off copy of that band’s range/step/mode into your current Scanner tab settings. It doesn’t tick anything ongoing; it just fills the fields once.
• Channels: Bands (described above) — an ongoing sweep of every band currently ticked “Scan,” all at once.

The Step and Mode fields apply to whichever source is active.