Assempix - Decode COFDMTV

Name: Assempix - Decode COFDMTV
Author: aicodix GmbH

Liveaicodix GmbH3 apps · 52.9K installsCommunicationFreecom.aicodix.assempix

A coded OFDM update to SSTV to receive digital images over SSB, AM and FM radio

Alert me ★ Watch Open in Play ↗

Total installs: 5,053
Installs / day: 0
Rating: —★
Released: 25 Nov 2021
Last update: 17 Dec 2025
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
No data collected
Follows the Play Families Policy

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

5 in 3 groups

5 Sensitive0 Notable0 Routine

What this app can do with your phone

Record sound using your phone's microphone
Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

MicrophoneSensitive1

Access to your phone's microphone to record sound

Record sound using your phone's microphonerecord audio · RECORD_AUDIO

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

Assempix decodes COFDMTV encoded audio signals to images and is based on open-source software. COFDMTV is based on COFDM (coded orthogonal frequency-division multiplexing) technology: - 160 ms long OFDM symbols - 6.25 Hz per sub-carrier - 1/8 guard interval - differentially encoded PSK (phase-shift keying) modulation - systematic polar codes for forward error correction Following modes are supported: Using SPC(64800, 43072): Mode 6: 8PSK, 2700 Hz BW and about 10 seconds long Mode 7: 8PSK, 2500 Hz BW and about 11 seconds long Mode 8: QPSK, 2500 Hz BW and about 16 seconds long Mode 9: QPSK, 2250 Hz BW and about 18 seconds long Using SPC(64512, 43072): Mode 10: 8PSK, 3200 Hz BW and about 9 seconds long Mode 11: 8PSK, 2400 Hz BW and about 11 seconds long Mode 12: QPSK, 2400 Hz BW and about 16 seconds long Mode 13: QPSK, 1600 Hz BW and about 24 seconds long Payload must be smaller or equal to 5380 bytes. JPEG, PNG and WebP image formats are supported. Width and height are limited to between 16 and 1024 pixels.

What's new

- added support for 16 KB page size - added support for AVIF - updated libs and tools

Growing in Communication

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