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Spectrum Scope Mode

nicsure edited this page Jan 9, 2026 · 4 revisions

Spectrum Scope Mode Overview

The Spectrum Scope provides a graphical view of signal activity across a range of frequencies.

It can be started by executing
Key Functions → Scope (default key: LP-2)
while in frequency mode.

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Frequency Entry

0–9 — Enter Centre Frequency

Begins entry of a new centre frequency in MHz.

  • * enters a decimal point
  • GREEN or # confirms entry
  • RED cancels entry

General Controls

SP-RED — Exit Scope

Exits Spectrum Scope and returns to Radio Mode.

SP-GREEN — Main Menu

Opens the main menu.

LP-GREEN — Function Menu

Opens the Scope Function Menu.
The menu lists all available scope functions and their associated key shortcuts.
Functions may also be executed directly from this menu.


Navigation

UP — Roll Left

Increments the centre frequency upward by the current step value.

  • Short press: one step
  • Long press: continuous stepping

DOWN — Roll Right

Same as Roll Left, but in the opposite direction.

SP-# — Set Strongest

Sets the centre frequency to the currently strongest detected signal.


Monitoring Functions

Certain actions and events will pause the scope display and switch the radio into receive mode on a user request or detected signal. Reception continues until the the user intervenes or the signal is lost in the case of trigger events.

SP-S2 — Monitor High

Opens the squelch and receives on the strongest signal currently visible on the scope.

SP-S1 — Monitor Centre

Opens the squelch and receives on the current centre frequency.

LP-1 to LP-9 — Set Trigger Level

Sets the signal strength threshold required to trigger monitoring.

A horizontal blue line appears on the scope display indicating the trigger level.

  • 1 – Lowest trigger threshold
  • 9 – Highest trigger threshold

LP-0 — Cancel Trigger

Removes the active monitor trigger.
The blue trigger line will disappear.

SP-# — Set Ignore

Adds the currently monitored frequency to the ignore list so it will not trigger again.

LP-RED — Clear Ignores

Clears all entries from the ignore list.


Scope Configuration

LP-# — Bar Count

Toggles the number of bars displayed in the scope, which also controls the visible frequency span.

Values: 16, 24, 48, 60, 80, 120

LP-* — Edit Step

Allows entry of a new frequency step value in kHz.

  • * enters a decimal point
  • GREEN or # confirms entry
  • RED cancels entry

Modulation Selection

LP-S1 — Set FM

Sets modulation mode to FM.

LP-S2 — Set AM

Sets modulation mode to AM.

LP-EMG — Set DSB

Sets modulation mode to DSB.


VFO Interaction

PTT — Frequency to VFO

Sets the active VFO in Radio Mode to the current center frequency.
This action does not exit Spectrum Scope Mode.

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