FT Ham vs PhosphorSSTV

FT Ham – FT8/FT4 Decoder & Audio Transmitter for Amateur Radio. FT Ham puts a complete FT8 and FT4 station in your pocket. Decode, reply and log QSOs from your iPhone or iPad in real time. Decoding runs entirely on your device. No interface yet? Hold your iPhone near your radio's speaker and start decoding in minutes. WHAT YOU NEED - A transceiver that can work in USB mode (upper sideband), on HF, VHF or UHF. - To receive: just your device. Place it next to the radio speaker and the built-in microphone picks up the signals. - To transmit and get the best decodes: an audio connection between the radio and your device, such as a radio with built-in USB audio, a USB sound card or an audio interface cable. - An amateur radio license to transmit. Anyone can listen. WHAT FT HAM DOES - Live waterfall: color palettes, level controls and a label on every decoded signal. Tap near a signal to reply. - Real-time decoding: FT8 and FT4 from the microphone or a USB audio interface, with callsign, report, SNR and country. - Transmit: FT8 and FT4 audio for CQ, reports, RRR and 73, aligned to UTC slots and played through the speaker or your radio interface. - Auto QSO sequencing: answers CQ, follows even and odd cycles, retries when needed and logs the QSO when it is complete. - Manual control at any time: choose any message yourself. - Clear decode list: columns, an active QSO bar, NEW GRID and NEW DXCC badges and a Needed filter. - Call alerts: sound, vibration or a notification when someone calls you or a watched station is heard. - Accurate timing: slots follow network time for more reliable decodes. - Compound callsigns, optional 11 m and CB callsigns, and HF to 23 cm bands. - Logbook: edit, batch select, filter by date, undo, and ADIF import and export. - Contact map: see your logged QSOs and coverage on a map. - English, German, Spanish, French and Italian. FT HAM PREMIUM (OPTIONAL ONE-TIME PURCHASE) - CAT radio control through rigctld on your computer, with frequency sync and PTT. - QRZ Logbook, LoTW and eQSL upload with confirmation sync. - PSK Reporter spotting. - QSO statistics: charts by band and mode, DXCC counter and activity heatmaps. - iPad dashboard with the waterfall and messages side by side. Everything that was free before stays free. Premium is not a subscription. PRIVACY Your logbook and settings stay on your device. FT Ham sends anonymous crash reports and usage statistics (you can turn statistics off). QRZ, LoTW, eQSL and PSK Reporter only receive data after you turn them on. Full details at ftham.turrion.dev/privacy. GOOD TO KNOW FT Ham only produces audio and your radio does the transmitting. Always follow your local regulations. The FT Ham core is open source under the MIT License. Premium features are proprietary. Third-party licenses are listed in the app.

PhosphorSSTV decodes Slow Scan Television (SSTV) signals in real time using your iPhone's microphone. SSTV has been the amateur radio image transmission mode since the 1960s. From cold-war era picture transmissions to International Space Station passes, SSTV encodes images as audio tones between 1200–2300Hz. Each scanline is a sweep through frequency space, painting pictures one line at a time across the HF bands. Hold your phone near a shortwave radio tuned to an SSTV signal — or play a recording — and watch the image build scanline by scanline on an authentic phosphor CRT display, just like the original SSTV monitors. No internet connection required. No external hardware. No account. Just your iPhone and a radio. TEN SSTV MODES • Scottie S1, S2, DX — the most widely used SSTV modes on HF worldwide • Martin M1, M2 — popular across European SSTV activity • Robot 36, 72 — YCbCr colour modes, used by the ISS during special events • Robot 8, 12, 24 BW — fast greyscale modes for text, diagrams, and low-bandwidth conditions REAL-TIME DECODING • Progressive scanline rendering — the image builds top to bottom, just like a real SSTV monitor • VIS code detection automatically identifies the transmission mode • Sync-aligned slant correction eliminates timing drift for straight, clean images • Hilbert transform FM discriminator for accurate frequency-to-pixel conversion SIGNAL ANALYSIS • Live FFT spectrum display shows the full 0–4 kHz audio band • Scrolling waterfall reveals the SSTV signal structure in real time • SSTV band markers at 1200 Hz (sync), 1500 Hz (black), and 2300 Hz (white) • Input gain control from 0.1× to 20× IMAGE LOG • Decoded images saved automatically with thumbnails • Full metadata: mode, timestamp, duration, VIS detection status • View full-size, share, or delete • Swipe to delete, tap to view detail AUTHENTIC CRT AESTHETIC • Green and amber phosphor display themes • Scanline overlay, vignette, and glow effects • Monospaced terminal typography throughout • The same retro aesthetic as our PhosphorRTTY and PhosphorCW apps WHERE TO FIND SSTV • 20m band: 14.230 MHz USB — primary worldwide SSTV frequency • 80m band: 3.845 MHz LSB • 40m band: 7.171 MHz LSB • ISS: 145.800 MHz FM during special SSTV events • Or search YouTube/archive.org for SSTV audio recordings to decode PRIVACY PhosphorSSTV makes zero network requests. No accounts, no tracking, no analytics, no ads. Microphone audio is processed entirely on-device and is never recorded or transmitted. See our full privacy policy on our support page. ABOUT SSTV Slow Scan Television was developed in the late 1950s as a way to transmit still images over voice-bandwidth radio channels. Unlike fast-scan television (broadcast TV), SSTV takes seconds to minutes per image, encoding pixel brightness as audio frequency. The 1200 Hz sync pulse marks each line boundary, black is 1500 Hz, and white is 2300 Hz. Every pixel in between is a precise frequency in that range. Amateur radio operators worldwide still use SSTV daily on the HF bands, and the International Space Station periodically transmits commemorative images that can be received with nothing more than a handheld radio.