The numbers speak for themselves. Quietly.
FT-0 builds on the FT8 and FT4 heritage by removing the one component responsible for every problem in digital modes: the transmission.
| Parameter | Value | Notes |
|---|---|---|
| Symbol rate | 0 baud | Finally, a mode your CPU can keep up with |
| Occupied bandwidth | 0 Hz | Infinite stations per passband, zero QRM |
| Modulation | None | Patent pending |
| T/R cycle | 15 s | 15 seconds of silence, then 15 seconds of silence |
| Duty cycle | 100% @ 0 W | Safe for all finals, including your Baofeng |
| Minimum SNR | −∞ dB | Every decode is a new weak-signal record |
| Bit error rate | 0.000000% | You cannot corrupt a transmission that does not exist |
| FEC | Unnecessary | The LDPC guys are seething |
| Multipath tolerance | Total | All paths arrive simultaneously, because nothing is arriving |
| Suggested calling frequency | All of them | Currently in use worldwide. You just can't tell. |
FT8 vs FT4 vs FT-0
Independent lab testing conducted in a room with the radio unplugged.
| Metric | FT8 | FT4 | FT-0 |
|---|---|---|---|
| T/R cycle | 15 s | 7.5 s | 15 s of pure serenity |
| Bandwidth | 50 Hz | 90 Hz | 0 Hz |
| Min SNR | −21 dB | −17.5 dB | −∞ dB |
| Busted calls | Some | More | Mathematically impossible |
| Works during blackout | No | No | Yes |
| Works with no antenna | No | No | Yes |
| Works with no radio | No | No | Yes |
| Electric bill impact | Some | Some | Negative (probably) |
Anatomy of a perfect QSO
A complete FT-0 contact, annotated. Total airtime: none. Total information exchanged: none. Confirmation rate: 100%.
Everything works, because nothing happens
FT-0 is the only mode with a 100% success rate across every band, every solar cycle, and every budget.
PROPAGATION-PROOF
Silence propagates equally well on all bands, at all times, under all solar conditions. Gray line: irrelevant. Sporadic E: does not care. Fully operational during total ionospheric blackout, making FT-0 the only truly reliable EmComm mode.
EME READY
Silence bounces off the moon at exactly the frequency it left. Zero Doppler correction required. Libration fading has no effect on nothing.
INSTANT DXCC
You have already worked every entity. North Korea is on the air in FT-0 right now. So is Bouvet. Silence emanates from all 340 entities continuously. Submit a blank ADIF to LoTW and wait for your wallpaper.
CONTEST DOMINANT
The FT-0 Field Day category is most contacts not made. Everyone ties at zero. Everyone wins. The robot accepts your empty log instantly with no busted calls.
QRP RECORDS
Miles per watt is division by zero. Mathematicians hate this one trick. Every FT-0 operator holds the all-time weak signal record simultaneously.
ZERO STATION COST
Radio: optional. Antenna: optional. Computer: optional. Coffee: required. The most accessible mode in the history of amateur radio.
What the community is saying
Reviews collected from operators who could not confirm the mode was working. This is a feature.
Get on the air with nothing
Or don't. The site works the same either way. Everything below is fully interactive and completely silent.
QSO SIMULATOR
Press one button and work a full six-step contact in real time. It logs itself. Make a contact →
LIVE SPOTS
A DX cluster and POTA feed updating constantly with nobody. Watch the spots →
BAND CONDITIONS
Solar flux 0, every band DEAD (optimal). Conditions are perfect. Check propagation →
SCOREBOARD
The Field Day standings where everyone ties for first at zero. See the standings →
CALLBOOK
Look up any FT-0 operator. No photo on file — they never keyed up. Search the callbook →
STORE
0-byte QSL cards, silent t-shirts, empty mugs. Everything $0.00. Buy nothing →
WSJT-0 v0.0.0
Available for Windows, macOS, Linux, and devices that are powered off.
(the actual hash of empty input — verify it yourself, this part is real)
New here? Read the Operating Manual, then check Live Spots to see who's not on the air right now.