DO9FR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO9FR, decoded by SO8OO in southeastern Poland. 1,880 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 36 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-11.
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 1,880 FT8 messages attributed to DO9FR as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 160 m (5%). Most decodes (88%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.1 dB.
Overview
Bands
Last attributed message: 2026-10-11 19:52 UTC
Observed FT8 message patterns
- Attributed sample
- 1,880 messages
- Active dates
- 36 UTC dates
- Estimated median S/N
- -10.1 dB
- Estimated 10th-90th percentile
- -19 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 447, moderate (-15 to -9 dB) 683, strong (≥ -8 dB) 750.
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 DO9FR 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 DO9FR
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
- JO53 · 1,267 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 841 km (approx.)
- Last such locator decoded
- 2026-10-11 19:52 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 | DO9FR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-11 19:13 | 80m | -10 / -6 | PE1PWR | -14 / -2 | 5 | ✓ Full exchange observed |
| 10-11 19:12 | 80m | -6 / -5 | SQ1EIC | -18 / -8 | 4 | ✓ Full exchange observed |
| 10-11 17:53 | 80m | - / 0 | OZ1BM | -6 / - | 3 | ✓ Closing fragment |
| 10-10 17:41 | 80m | -2 / +6 | SM0CXS | -12 / - | 3 | ✓ Closing observed |
| 10-10 17:26 | 80m | -5 / -22 | UR5LAK | -1 / -7 | 8 | ✓ Full exchange observed |
| 10-10 17:22 | 80m | -7 / - | R57EBT | - / -16 | 3 | Partial capture |
| 10-10 17:13 | 80m | -11 / -10 | OE6BME | +5 / +6 | 4 | ✓ Full exchange observed |
| 10-10 17:08 | 80m | -11 / - | OM3PC | - / - | 5 | Partial capture |
| 10-10 17:04 | 80m | -8 / -9 | 9A5E | +12 / - | 3 | ✓ Full exchange observed |
| 10-10 16:55 | 80m | -5 / -10 | PA0MUS | -3 / +5 | 4 | Partial capture |
| 10-10 16:52 | 80m | -6 / +1 | SP5ALV | +14 / - | 6 | ✓ Full exchange observed |
| 10-09 16:42 | 80m | -12 / - | RA3TK | -9 / -9 | 7 | Partial capture |
| 10-09 16:37 | 80m | -6 / - | DL4IB | - / -19 | 2 | ✓ Closing fragment |
| 10-08 18:39 | 80m | 0 / - | RY4D | - / - | 5 | Partial capture |
| 10-08 18:31 | 80m | -6 / - | R4RJ | - / -7 | 2 | ✓ Closing fragment |
| 10-08 18:22 | 80m | -3 / - | RV3V | - / -6 | 2 | ✓ Closing fragment |
| 10-08 18:07 | 80m | - / -17 | SP3IPA | +7 / - | 5 | ✓ Closing fragment |
| 10-08 17:52 | 80m | -10 / -11 | ER5GB | -8 / - | 7 | ✓ Closing observed |
| 10-08 17:00 | 80m | - / -23 | RU9ST | -8 / - | 4 | Partial capture |
| 10-08 16:55 | 80m | - / - | S51SU | -6 / - | 2 | Partial capture |
| 10-08 16:48 | 80m | +1 / -15 | YO8CRU | +1 / -11 | 6 | ✓ Full exchange observed |
| 10-05 19:10 | 80m | - / -15 | RU3RA | +4 / - | 4 | Partial capture |
| 10-05 19:08 | 80m | -13 / - | SP9SX | - / - | 2 | Partial capture |
| 10-05 19:00 | 80m | -6 / -12 | HF1Z | +10 / - | 3 | ✓ Closing observed |
| 10-05 18:59 | 80m | -12 / -12 | OK1AY | +12 / - | 5 | ✓ Full exchange observed |
| 10-05 18:52 | 80m | -19 / -23 | R7CD | -4 / 0 | 4 | Partial capture |
| 10-05 18:38 | 80m | -1 / - | OM3PC | - / - | 3 | Partial capture |
| 10-05 18:35 | 80m | -9 / +2 | OZ1A | -6 / - | 5 | ✓ Full exchange observed |
| 10-05 18:04 | 80m | - / -3 | DL5SD | -3 / - | 2 | ✓ Closing fragment |
| 10-05 17:48 | 80m | -8 / -14 | UA3VVA | -4 / +1 | 5 | ✓ Full exchange observed |
| 10-05 17:28 | 80m | -15 / -4 | G1XOW | -4 / - | 4 | ✓ Full exchange observed |
| 10-05 17:22 | 80m | -8 / +1 | DK2BK | -1 / +7 | 4 | ✓ Full exchange observed |
| 10-05 17:16 | 80m | -12 / +8 | SQ1KD | -8 / - | 6 | ✓ Full exchange observed |
| 10-04 19:19 | 80m | -14 / - | RA3RPW | - / - | 2 | Partial capture |
| 10-04 18:49 | 80m | -8 / - | DH3SUP | - / - | 4 | ✓ Closing fragment |
| 10-04 18:47 | 80m | -9 / +6 | PA0AME | -18 / -6 | 4 | ✓ Full exchange observed |
| 10-03 20:33 | 80m | -1 / -4 | DA6IT | -6 / +3 | 5 | ✓ Full exchange observed |
| 10-03 20:25 | 80m | +10 / - | IZ0COC | - / - | 2 | Partial capture |
| 10-03 20:24 | 80m | -6 / - | S55X | - / - | 2 | Partial capture |
| 10-03 20:21 | 80m | 0 / -11 | G6GN | -4 / - | 4 | Partial capture |
| 10-03 20:18 | 80m | +2 / -6 | DO4TYW | -8 / +3 | 5 | ✓ Full exchange observed |
| 10-03 20:14 | 80m | -5 / -8 | Z62NS | -1 / +4 | 16 | ✓ Full exchange observed |
| 10-03 20:11 | 80m | -3 / - | IW2CAK | - / - | 2 | Partial capture |
| 10-03 20:06 | 80m | -5 / -14 | IW2CAK | -17 / -9 | 5 | ✓ Full exchange observed |
| 10-03 20:03 | 80m | 0 / - | DL1FRH | - / -15 | 2 | ✓ Closing fragment |
| 10-03 19:56 | 80m | - / -4 | SP1MGM | +4 / - | 3 | ✓ Closing fragment |
| 10-03 15:39 | 80m | -5 / 0 | DL4ZP | -18 / -7 | 9 | ✓ Full exchange observed |
| 10-03 15:35 | 80m | -1 / +2 | DL2SWU | 0 / - | 7 | ✓ Full exchange observed |
| 10-03 15:33 | 80m | +4 / - | DL1NB | -22 / - | 2 | ✓ Closing observed |
| 10-03 15:33 | 80m | -2 / -11 | LY8O | +7 / - | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 191745 -12 1648 CQ DO9FR JO53 (x15)
UTC dB Audio Message 194715 -15 1807 DO9FR DL7UKM R+00 194730 -12 1715 DL7UKM DO9FR RR73 194745 -16 1808 DO9FR DL7UKM 73 194800 -6 1715 CQ DO9FR JO53 (x3) 194915 -12 1808 DO9FR DL7UKM JO62 194930 -14 1715 CQ DO9FR JO53 194945 -4 1715 DO9FR DK7ZT +01 195000 -14 1715 DK7ZT DO9FR R+18 195015 +2 1715 DO9FR DK7ZT RR73 195030 -17 1715 DK7ZT DO9FR 73 195230 -16 2302 R2EA/P DO9FR JO53 195345 -1 2450 DL3IAE DO9FR JO53 195600 -7 2303 R2EA/P DO9FR JO53
UTC dB Audio Message 162330 -18 1168 DO9FR F6FDY JN33 (x2) 162600 +5 2140 DO9FR LZ3CB KN32 (x3) 172745 -12 2090 DO9FR IK1MJK/P JN35 (x4) 092930 -7 2690 DO9FR F1PBZ -06 134445 -19 1836 DO9FR EB3JT JN01
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.
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