Receive-only PSK signal terminal

Decode radio tones with a phosphor CRT workbench.

PhosphorPSK listens to nearby receiver audio, visualizes the carrier, shows a waterfall, and keeps decoded session text in a local logbook.

PhosphorPSK green carrier scope on iPhone

A focused instrument, not a dashboard.

The interface keeps scope, waterfall, lock state, and decoded text in one continuous view so the operator can stay with the signal.

01 / SIGNAL

Carrier scope and waterfall

Watch carrier movement, lock confidence, level, SNR, and a compact waterfall while listening.

02 / MODES

PSK31, PSK63, PSK125

Switch between common PSK modes, adjust input gain, and trim the manual carrier when needed.

03 / LOGS

Local session logbook

Decoded captures stay on device and can be searched, deleted, copied, or shared by the user.

PhosphorPSK iPad workbench with scope, controls, and logs
STEP 01
Place near receiver audio.Use the microphone or an external source for local listening.
STEP 02
Lock the carrier.Auto lock and manual carrier controls keep the terminal focused.
STEP 03
Review decoded sessions.Search signal captures and share a plain text log when needed.

Built for field review on iPhone and iPad.

Green and amber phosphor themes keep the app visually clear without turning it into a generic utility screen.

Main green terminal

Main terminal with carrier scope, waterfall, and decode text.

Amber carrier terminal

Amber phosphor mode for alternate viewing conditions.

Signal log screen

Signal Log keeps captured sessions searchable and shareable.

Instrument controls screen

Instrument drawer contains receiver, display, log, and app controls.

Support and privacy.

No account is required. PhosphorPSK is designed around local listening and local records.

Local Data

  • Decoded text is stored in the local logbook.
  • Audio is analyzed on device for the terminal display.
  • Logs are shared only when you choose to share them.

App Details

Version 1.0.0. Universal iPhone and iPad. Read the Privacy Policy.