DigiDecoder: Ham Radio

DigiDecoder is a universal ham radio digital modes decoder and encoder. Use the built-in microphone or connect an audio cable directly for better input quality.

One app for all the signals! The correct digital mode is automatically recognized and decoded in real time with an animated waterfall display.

Quickly encode and send beautiful SSTV images, plus CW, FT8, and Packet messages. Bluetooth and network TNCs for Packet are supported as well.

Try DigiDecoder free for 7 days. After the trial, continue with an affordable monthly subscription, or unlock lifetime access with a one-time purchase (a few months' worth). Nothing is charged during the trial and you can cancel anytime.

Currently supported decode modes (more to come):

SSTV:

Robot 8 BW - 160×120

Robot 12 BW - 160×120

Robot 24 Color - 160×120 YCrCb

Robot 24 BW - 320×240

Robot 36 - 320×240 YCrCb

Robot 72 - 320×240 YCrCb

Scottie S1 - 320×256 RGB

Scottie S2 - 320×256 RGB

Scottie DX - 320×256 RGB

Martin M1 - 320×256 RGB

Martin M2 - 320×256 RGB

PD50 - 320×256 YCrCb

PD90 - 320×256 YCrCb

PD120 - 640×496 YCrCb

PD180 - 640×496 YCrCb

PD240 - 640×496 YCrCb

PD160 - 512×400 YCrCb

PD290 - 800×616 YCrCb

Packet:

AX.25 1200 - AFSK Bell 202, 1200/2200 Hz

FX.25 1200 - AX.25 + Reed-Solomon FEC

AX.25 300 - AFSK 1600/1800 Hz

FX.25 300 - AX.25 300 + Reed-Solomon FEC

IL2P 1200 AFSK - Bell 202 + RS FEC

IL2P 300 AFSK - 1600/1800 Hz + RS FEC

IL2P 300 BPSK - 1500 Hz DBPSK + RS FEC

Weak Signal:

FT8 - 8-tone GFSK, 15s periods

FT4 - 4-tone GFSK, 7.5s periods

JS8 - Keyboard-to-keyboard, FT8-based modulation

Narrowband:

RTTY - 45.45/50/75 Bd

CW/Morse - 5-55 WPM

Olivia - 8/250, 8/500, 16/500, 16/1000, 32/1000

Currently supported encode modes (more to come):

SSTV:

Robot 12 BW - 160×120

Robot 36 - 320×240 YCrCb

Scottie S1 - 320×256 RGB

Scottie S2 - 320×256 RGB

Martin M1 - 320×256 RGB

Martin M2 - 320×256 RGB

PD120 - 640×496 YCrCb

Packet:

AX.25 1200 - AFSK Bell 202, 1200/2200 Hz

FX.25 1200 - AX.25 + Reed-Solomon FEC

AX.25 300 - AFSK 1600/1800 Hz

FX.25 300 - AX.25 300 + Reed-Solomon FEC

Narrowband:

RTTY - 45.45/50/75 Bd

CW/Morse - 5-55 WPM

Weak Signal:

FT8 - 8-tone GFSK, 15s periods

FT4 - 4-tone GFSK, 7.5s periods

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/