R2DDN — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving R2DDN, decoded by SO8OO in southeastern Poland. 445 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.
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 445 FT8 messages attributed to R2DDN as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 40 m (23%) and 20 m (20%). Most decodes (99%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-10-18 19:09 UTC
Observed FT8 message patterns
- Attributed sample
- 445 messages
- Active dates
- 34 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -17 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 141, strong (≥ -8 dB) 243.
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 R2DDN 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 R2DDN
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
- KO85 · 198 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-10-18 19:09 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 | R2DDN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 18:34 | 40m | - / -18 | PD4AH | -6 / - | 11 | ✓ Closing fragment |
| 10-18 19:09 | 80m | +2 / - | DM3ER | 0 / -25 | 3 | Partial capture |
| 10-18 19:07 | 80m | +7 / - | RN3TT | - / -1 | 3 | ✓ Closing fragment |
| 10-18 19:05 | 80m | -2 / -10 | R7KJM | -5 / -7 | 5 | ✓ Full exchange observed |
| 10-18 18:41 | 80m | -6 / -7 | R8PG | -6 / -5 | 4 | ✓ Full exchange observed |
| 10-18 18:38 | 80m | +4 / -19 | DD5SI | +14 / -23 | 6 | ✓ Full exchange observed |
| 10-18 18:37 | 80m | -8 / - | BG0EJN | - / - | 2 | Partial capture |
| 10-16 20:02 | 40m | - / -17 | PA3ELQ | +8 / - | 2 | Partial capture |
| 10-16 19:42 | 40m | - / -13 | ON1EHF | -8 / - | 2 | ✓ Closing fragment |
| 10-16 19:14 | 40m | - / -16 | IK5NQI | +6 / - | 2 | ✓ Closing fragment |
| 10-16 19:12 | 40m | - / -10 | HB9EOT/P | 0 / - | 2 | ✓ Closing fragment |
| 10-16 18:31 | 40m | -4 / -7 | R6FFB | +2 / +1 | 5 | ✓ Full exchange observed |
| 10-16 18:23 | 40m | -12 / - | PC1K | - / -13 | 3 | ✓ Closing fragment |
| 10-15 17:44 | 80m | -11 / -18 | IU8SDA | +2 / -10 | 5 | ✓ Full exchange observed |
| 10-13 19:07 | 40m | -20 / - | SP2SCB | - / -13 | 2 | ✓ Closing fragment |
| 10-10 19:09 | 40m | - / -15 | F4NHL | -2 / - | 2 | ✓ Closing fragment |
| 10-09 19:52 | 80m | -13 / - | F6DQZ | - / - | 2 | Partial capture |
| 10-09 19:41 | 80m | -4 / - | SM3WFR | - / - | 2 | Partial capture |
| 10-09 19:39 | 80m | -5 / - | RN3DDW/P | - / - | 2 | Partial capture |
| 10-09 19:36 | 80m | -7 / - | UA4HBR | - / - | 2 | Partial capture |
| 10-09 19:32 | 80m | - / - | UA3IDQ | -10 / - | 2 | ✓ Closing fragment |
| 10-09 19:30 | 80m | -18 / -15 | OH8WW | -2 / -6 | 4 | ✓ Full exchange observed |
| 10-09 19:28 | 80m | -6 / - | DL7VGU | - / - | 2 | Partial capture |
| 10-09 18:39 | 80m | - / -13 | UA3LNM | +7 / - | 2 | Partial capture |
| 10-09 18:37 | 80m | -3 / 0 | RT3K/P | -13 / - | 2 | Partial capture |
| 10-07 19:18 | 80m | -11 / -6 | RA1QX | -10 / - | 4 | ✓ Closing observed |
| 10-05 19:47 | 80m | -13 / -15 | M7WVX | -4 / -20 | 5 | ✓ Full exchange observed |
| 10-05 19:20 | 80m | -10 / -8 | R5KH | -8 / -8 | 3 | ✓ Full exchange observed |
| 10-05 19:11 | 80m | 0 / -16 | DK0PRL | +2 / -18 | 5 | ✓ Full exchange observed |
| 10-05 19:10 | 40m | - / -21 | EA5KE | +2 / - | 4 | Partial capture |
| 10-03 18:54 | 40m | -8 / - | M9DJN | - / -13 | 2 | ✓ Closing fragment |
| 10-01 19:14 | 80m | - / -21 | DO8JB | -11 / - | 3 | ✓ Closing fragment |
| 10-01 19:12 | 80m | -8 / -21 | DH8IAT | -6 / -22 | 3 | ✓ Full exchange observed |
| 10-01 19:08 | 80m | -3 / +1 | R4CCW | -4 / +4 | 5 | ✓ Full exchange observed |
| 10-01 19:06 | 80m | -2 / -3 | R6ODX | +7 / -1 | 5 | ✓ Full exchange observed |
| 10-01 19:02 | 80m | -9 / -24 | TA4/DD1WT | -13 / -16 | 4 | Partial capture |
| 10-01 18:39 | 80m | 0 / - | IQ0YA | - / - | 2 | Partial capture |
| 10-01 18:26 | 80m | -18 / - | SM5URS | -5 / -17 | 4 | ✓ Closing observed |
| 10-01 18:23 | 80m | -9 / - | SQ7KHW | - / - | 2 | Partial capture |
| 10-01 18:11 | 80m | -5 / -16 | SM7IUN | -2 / -12 | 4 | ✓ Full exchange observed |
| 10-01 18:05 | 80m | -2 / -2 | TF4M | -18 / -18 | 3 | ✓ Full exchange observed |
| 10-01 18:03 | 80m | -3 / - | RQ3D | - / -15 | 2 | ✓ Closing fragment |
| 10-01 17:33 | 80m | -12 / -16 | G8AJM | +4 / -17 | 4 | ✓ Full exchange observed |
| 10-01 17:27 | 80m | -5 / -3 | RA6ZS | -7 / -5 | 5 | ✓ Full exchange observed |
| 10-01 17:26 | 80m | -17 / - | RZ6HBK | - / -12 | 3 | ✓ Closing fragment |
| 09-21 18:54 | 80m | +2 / -6 | DH9DR | +5 / -6 | 5 | ✓ Full exchange observed |
| 09-21 18:26 | 80m | -10 / - | UA3DUJ | -15 / - | 2 | ✓ Closing observed |
| 09-21 18:23 | 80m | -4 / - | R9FAK | - / -8 | 3 | ✓ Closing fragment |
| 09-21 18:21 | 80m | +7 / -9 | OZ1KEF | -4 / -9 | 4 | ✓ Full exchange observed |
| 09-21 18:19 | 80m | - / -9 | 5P1KZX | +6 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 200230 +8 2699 R2DDN PA3ELQ -17 (x2) 182745 -15 2630 R2DDN CT2IGO RR73 183430 -6 1138 R2DDN PD4AH -18 (x11) 185730 -4 953 R2DDN PD0PY RR73
UTC dB Audio Message 184215 -6 1243 R2DDN R8PG RR73 184230 -8 1243 R8PG R2DDN 73 184445 -7 1014 R2DDN DL3MIB JN57 190530 -4 2356 R7KJM R2DDN KO85 190545 -8 2356 R2DDN R7KJM -10 190600 +1 2357 R7KJM R2DDN R-07 190615 -2 2356 R2DDN R7KJM RR73 190630 -3 2357 R7KJM R2DDN 73 190745 +2 731 RN3TT R2DDN KO85 (x3) 190915 -2 1871 DM3ER R2DDN KO85 (x2) 191000 +0 1877 R2DDN DM3ER RRR 191130 +4 1874 R2DDN UC6D 73
UTC dB Audio Message 203045 +4 996 R2DDN 9A2RD JN65 (x5)
UTC dB Audio Message 171800 +4 991 GW4DVB R2DDN KO85 171900 +5 2082 YO3NSS R2DDN KO85 172030 +0 999 AP2FLY R2DDN KO85 (x2) 171400 +5 433 YO3NSS R2DDN KO85 (x3) 171645 -4 992 DL7HS R2DDN KO85 (x2) 171900 -15 1377 R2DDN M7ELO -11 172645 -2 1567 OE5NVL R2DDN KO85 (x2) 173115 +3 667 II7MGBA R2DDN KO85 180230 -13 1388 I0WBX R2DDN KO85 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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