DO7NN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO7NN, decoded by SO8OO in southeastern Poland. 92 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-10.
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 92 FT8 messages attributed to DO7NN as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 160 m (47%). Several six-hour UTC windows tied for the largest share (58%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-09-10 03:16 UTC
Observed FT8 message patterns
- Attributed sample
- 92 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -19 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 25.
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 DO7NN 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 DO7NN
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 · 54 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 841 km (approx.)
- Last such locator decoded
- 2026-09-10 03:16 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 | DO7NN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 04:33 | 80m | - / -8 | TM35DCM | -5 / - | 3 | Partial capture |
| 09-12 04:33 | 80m | - / -15 | Z62NS | +6 / - | 8 | Partial capture |
| 09-10 03:16 | 160m | -10 / - | EI4GAB | - / - | 2 | Partial capture |
| 09-10 03:09 | 160m | -18 / -22 | LY3BRA | +7 / +5 | 8 | ✓ Full exchange observed |
| 09-10 03:06 | 160m | -10 / -5 | OR7K | -6 / - | 5 | ✓ Full exchange observed |
| 09-10 03:04 | 80m | - / -18 | ON4MAP | -14 / - | 2 | ✓ Closing fragment |
| 09-10 02:59 | 80m | -1 / - | R3AP | - / - | 2 | Partial capture |
| 09-10 02:58 | 80m | -9 / - | W4IPC | - / 0 | 3 | ✓ Closing fragment |
| 09-10 02:56 | 80m | -16 / -18 | R3KLE | -7 / - | 4 | ✓ Closing observed |
| 09-10 02:53 | 80m | -12 / - | UA4FKT | -8 / -1 | 2 | Partial capture |
| 09-10 02:51 | 80m | -5 / -10 | SZZZ/YU1FW | +8 / - | 3 | Partial capture |
| 09-01 04:10 | 80m | -12 / +3 | F1TFT | -4 / +9 | 5 | ✓ Full exchange observed |
| 09-01 04:08 | 80m | -6 / - | EW6TW | - / - | 2 | Partial capture |
| 09-01 04:05 | 80m | -8 / -7 | SP9YGD | +10 / +5 | 5 | ✓ Full exchange observed |
| 09-01 04:04 | 80m | -4 / - | OZ6MM | - / -3 | 2 | ✓ Closing fragment |
| 09-01 04:00 | 80m | -2 / - | US2YW | +15 / -4 | 4 | Partial capture |
| 09-01 03:57 | 80m | -14 / -16 | F5NNN | -7 / -2 | 6 | ✓ Full exchange observed |
| 09-01 03:55 | 80m | -20 / - | SV2JAO | -14 / -14 | 4 | ✓ Closing observed |
| 09-01 03:50 | 80m | -17 / - | WC4H | - / - | 3 | Partial capture |
| 09-01 03:48 | 80m | -10 / - | OO0O | - / - | 2 | Partial capture |
| 09-01 03:43 | 80m | -6 / -12 | DO9BAU | +4 / +7 | 9 | ✓ Full exchange observed |
| 09-01 03:41 | 80m | -13 / 0 | 3Z100PKP | +9 / +6 | 3 | Partial capture |
| 08-27 17:54 | 20m | - / - | RX9ABI | -7 / - | 2 | Partial capture |
| 08-13 21:05 | 160m | -17 / -5 | ON6LR | -20 / -2 | 4 | ✓ Full exchange observed |
| 08-13 20:59 | 160m | -17 / - | SM2OTU | - / -12 | 3 | ✓ Closing fragment |
| 08-13 20:52 | 160m | -19 / -3 | SP3BPU | +7 / - | 3 | ✓ Closing observed |
| 08-13 20:47 | 160m | -23 / 0 | DG1KPC | -14 / - | 3 | ✓ Closing observed |
| 08-13 20:36 | 80m | - / -7 | TF4M | -10 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 030015 +0 2705 R3AP DO7NN JO53 030300 -12 1199 SQ9RKE DO7NN JO53 030445 -11 1392 DO7NN ON4MAP -18 (x2) 043300 +6 404 DO7NN Z62NS -15 043300 -6 2723 DO7NN TM35DCM -08 043330 +2 405 DO7NN Z62NS -15 043330 -5 2723 DO7NN TM35DCM -08 043400 +8 405 DO7NN Z62NS -15 043400 -5 2723 DO7NN TM35DCM -08 043430 +5 405 DO7NN Z62NS -15 (x5)
UTC dB Audio Message 030700 -7 1995 DO7NN OR7K -05 030715 -7 1995 OR7K DO7NN R+11 030730 -4 1995 DO7NN OR7K RR73 030745 -11 1995 OR7K DO7NN 73 030900 -19 1476 LY3BRA DO7NN JO53 (x2) 031115 +6 1475 DO7NN LY3BRA -22 031130 -18 1476 LY3BRA DO7NN R+05 031145 +7 1475 DO7NN LY3BRA -22 031200 -18 1476 LY3BRA DO7NN R+05 031215 +7 1475 DO7NN LY3BRA RR73 031230 -19 1476 LY3BRA DO7NN 73 031500 -24 1898 DL3RN DO7NN JO53 031600 -11 887 EI4GAB DO7NN JO53 (x2)
UTC dB Audio Message 175400 -10 273 DO7NN RX9ABI MO05 (x2)
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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