YO2MHF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YO2MHF, decoded by SO8OO in southeastern Poland. 322 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-13.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 322 FT8 messages attributed to YO2MHF as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 20 m (21%) and 10 m (11%). Most decodes (50%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-13 15:00 UTC
Observed FT8 message patterns
- Attributed sample
- 322 messages
- Active dates
- 18 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -14 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 50, strong (≥ -8 dB) 248.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with YO2MHF in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to YO2MHF
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- KN06 · 242 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 387 km (approx.)
- Last such locator decoded
- 2026-09-13 15:00 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | YO2MHF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 14:47 | 40m | +5 / - | DL5WP | - / - | 21 | Partial capture |
| 09-13 14:20 | 40m | -2 / -5 | SA7CHI | -10 / -5 | 20 | ✓ Full exchange observed |
| 09-13 14:18 | 40m | -4 / - | 9A4AA | - / - | 4 | Partial capture |
| 09-13 13:57 | 40m | -4 / - | 9A4AA | - / - | 11 | Partial capture |
| 09-06 09:16 | 40m | -10 / - | 3Z25POT | - / - | 3 | Partial capture |
| 09-06 09:07 | 40m | -1 / - | SO100PKP | - / - | 10 | Partial capture |
| 09-06 09:05 | 40m | -4 / - | DL5PP | - / - | 3 | Partial capture |
| 09-06 08:41 | 40m | -5 / - | Z62NS | -16 / - | 7 | ✓ Full exchange observed |
| 09-06 08:41 | 40m | - / - | SQ1RTU | -4 / - | 3 | Partial capture |
| 09-06 08:38 | 40m | 0 / - | LA9H | - / -9 | 5 | ✓ Closing fragment |
| 09-06 08:35 | 40m | -3 / - | 4O7CC | - / - | 3 | ✓ Closing fragment |
| 08-27 07:23 | 20m | -19 / -14 | PA2AMJ | +2 / -4 | 5 | ✓ Full exchange observed |
| 08-21 13:34 | 10m | - / +8 | F5ILV | -12 / - | 2 | Partial capture |
| 08-19 19:16 | 40m | - / -12 | YO9CX | -16 / - | 3 | ✓ Closing fragment |
| 08-16 08:53 | 10m | - / +10 | DL2FK | -14 / - | 3 | ✓ Closing fragment |
| 08-15 18:35 | 40m | -15 / - | LA6RJA | - / - | 2 | Partial capture |
| 08-12 18:43 | 10m | - / -16 | LA1HW | -19 / - | 3 | ✓ Closing fragment |
| 08-01 08:12 | 10m | - / -12 | R6DOP | -18 / - | 2 | ✓ Closing fragment |
| 07-22 07:29 | 20m | -20 / - | CT3CK | - / - | 6 | ✓ Closing fragment |
| 07-19 14:07 | 10m | - / -21 | UR5VLC | -3 / - | 3 | ✓ Closing fragment |
| 07-19 13:57 | 10m | - / -11 | OZ2BMN | -22 / - | 3 | ✓ Closing fragment |
| 07-15 17:49 | 20m | -8 / - | TN8GD | - / -8 | 8 | ✓ Closing fragment |
| 07-15 17:32 | 20m | -6 / -10 | UN0GY | -9 / -14 | 19 | ✓ Full exchange observed |
| 07-15 13:37 | 20m | - / -14 | <...> | -19 / - | 3 | Partial capture |
| 07-05 04:21 | 80m | -5 / -24 | DO9BAU | +1 / -12 | 8 | ✓ Full exchange observed |
| 07-05 04:19 | 80m | -1 / - | 9A5E | +5 / +10 | 4 | ✓ Closing observed |
| 07-04 18:39 | 80m | 0 / - | YL2NX | - / - | 5 | Partial capture |
| 07-04 18:37 | 80m | -6 / -14 | YL3AVN | +6 / -10 | 4 | Partial capture |
| 07-04 18:35 | 80m | -7 / -5 | OE8TED | +4 / +8 | 5 | ✓ Full exchange observed |
| 07-04 18:33 | 80m | -15 / - | UB8A | - / - | 3 | Partial capture |
| 07-04 18:24 | 80m | -6 / - | 4Z5AV | - / - | 12 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 145215 +7 2783 DL5WP YO2MHF KN06 (x2) 145300 -3 784 YO2MHF R2EA -19 145315 +7 2783 DL5WP YO2MHF KN06 (x12)
UTC dB Audio Message 175145 -7 1244 TN8GD YO2MHF KN06 (x4) 072900 -24 1704 CT3CK YO2MHF KN06 (x6) 072315 +7 1983 YO2MHF PA2AMJ -14 (x3) 072530 -19 2037 PA2AMJ YO2MHF R-04 072545 +5 2037 YO2MHF PA2AMJ RR73
UTC dB Audio Message 081200 -19 2165 YO2MHF R6DOP -12 (x2) 184300 -21 1912 YO2MHF LA1HW -16 (x3) 085330 -11 1910 YO2MHF DL2FK JN48 (x3) 090415 -6 500 YO2MHF F4EXC -12 (x2) 093830 -22 2172 YO2MHF DK6TT R-14 114330 -13 695 YO2MHF HB3YBG R-07 122030 -5 629 YO2MHF M0BEW RR73 133415 -11 451 YO2MHF F5ILV JN23 (x2)
UTC dB Audio Message 184030 -4 446 YL2NX YO2MHF KN06 (x3) 041945 -5 1973 9A5E YO2MHF KN06 (x2) 042030 +5 1972 YO2MHF 9A5E RR73 042045 +0 1972 9A5E YO2MHF 73 042100 +2 2002 YO2MHF DO9BAU JO62 042145 -3 2002 DO9BAU YO2MHF -12 042200 +0 2002 YO2MHF DO9BAU R-24 042215 -5 2002 DO9BAU YO2MHF -12 (x2) 042300 +2 2002 YO2MHF DO9BAU R-24 042315 -9 2002 DO9BAU YO2MHF RR73 042330 -1 2002 YO2MHF DO9BAU 73
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee