R2DDA — 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 R2DDA, decoded by SO8OO in southeastern Poland. 752 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-31.
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 752 FT8 messages attributed to R2DDA as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 80 m (26%) and 20 m (3%). Most decodes (95%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-31 19:30 UTC
Observed FT8 message patterns
- Attributed sample
- 752 messages
- Active dates
- 34 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -16 to +2.4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 85, moderate (-15 to -9 dB) 197, strong (≥ -8 dB) 470.
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 R2DDA 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 R2DDA
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
- KO96 · 111 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,353 km (approx.)
- Last such locator decoded
- 2026-10-31 19:23 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 | R2DDA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-31 19:30 | 80m | +6 / - | OD5ZZ | - / -13 | 2 | ✓ Closing fragment |
| 10-31 19:27 | 80m | +4 / -2 | R6DUW | -11 / -7 | 8 | ✓ Full exchange observed |
| 10-31 19:26 | 80m | +6 / -15 | R1BC | +11 / -4 | 5 | ✓ Full exchange observed |
| 10-31 19:25 | 80m | +8 / - | R4ABW | - / -9 | 2 | ✓ Closing fragment |
| 10-31 19:22 | 80m | +6 / -7 | ON4CJU | -8 / -22 | 4 | ✓ Full exchange observed |
| 10-31 19:19 | 80m | +1 / +6 | PI4DX | +14 / -5 | 5 | ✓ Full exchange observed |
| 10-31 19:18 | 80m | +2 / - | SM4UPU | - / -16 | 2 | ✓ Closing fragment |
| 10-29 18:49 | 80m | -14 / +10 | RA3SI | -17 / +2 | 2 | Partial capture |
| 10-29 18:46 | 80m | -5 / - | 5Z4VJ | - / -17 | 3 | ✓ Closing fragment |
| 10-29 18:41 | 40m | -6 / - | RA0SCA | - / -12 | 2 | ✓ Closing fragment |
| 10-29 18:41 | 40m | -5 / - | AP5ARS | - / -12 | 4 | Partial capture |
| 10-29 18:37 | 40m | -2 / - | HZ1IQ | - / -15 | 2 | Partial capture |
| 10-29 18:36 | 40m | -2 / - | A61DD | - / -6 | 2 | Partial capture |
| 10-29 18:17 | 40m | -9 / - | BD4RHV | - / -14 | 2 | ✓ Closing fragment |
| 10-29 18:13 | 40m | -1 / -18 | OE7LVI | -2 / - | 3 | ✓ Closing observed |
| 10-29 18:11 | 40m | +1 / -15 | RD3FY | +1 / -12 | 9 | ✓ Full exchange observed |
| 10-29 18:11 | 40m | - / +9 | LZ26IPA | -8 / - | 2 | ✓ Closing fragment |
| 10-29 18:05 | 40m | -6 / - | ZL1VAH | - / -12 | 4 | ✓ Closing fragment |
| 10-25 15:46 | 40m | -6 / - | BA7IWL | - / -19 | 2 | Partial capture |
| 10-25 15:45 | 40m | -4 / - | RM1O | - / -22 | 2 | Partial capture |
| 10-25 15:44 | 40m | -4 / - | JA1DDZ | - / -13 | 2 | ✓ Closing fragment |
| 10-25 15:40 | 40m | -2 / -13 | F8BMB | -11 / -16 | 4 | ✓ Full exchange observed |
| 10-25 15:38 | 40m | -9 / -6 | 9A6SJU | -5 / - | 2 | ✓ Closing observed |
| 10-25 15:38 | 40m | -3 / -11 | IU1HGN | -15 / - | 6 | ✓ Closing observed |
| 10-25 15:37 | 40m | -6 / - | RC9WC | -24 / - | 2 | ✓ Closing observed |
| 10-24 20:29 | 80m | -4 / -13 | SP6FME | +1 / -4 | 6 | ✓ Full exchange observed |
| 10-24 20:19 | 80m | +1 / - | 4O4A | - / -1 | 3 | Partial capture |
| 10-24 20:17 | 80m | +12 / - | S55X | - / -21 | 2 | Partial capture |
| 10-24 20:13 | 80m | 0 / - | 4X5JK | -18 / -10 | 3 | ✓ Closing observed |
| 10-24 20:10 | 80m | +7 / - | RC7LX | - / -11 | 3 | ✓ Closing fragment |
| 10-17 19:01 | 40m | -1 / -15 | IU4UWH | -13 / -14 | 6 | Partial capture |
| 10-17 18:59 | 40m | -4 / - | RT8T | -12 / - | 2 | ✓ Closing observed |
| 10-17 18:58 | 40m | -4 / - | A65DF | - / -13 | 2 | Partial capture |
| 10-17 18:56 | 40m | -4 / - | DS2MGT | - / -15 | 2 | ✓ Closing fragment |
| 10-17 18:52 | 40m | -6 / - | JH4SLF | - / -14 | 7 | ✓ Closing fragment |
| 10-17 18:48 | 40m | 0 / - | BI1HJR | - / -12 | 2 | ✓ Closing fragment |
| 10-17 18:44 | 40m | -4 / - | 4X1UF | - / -12 | 2 | ✓ Closing fragment |
| 10-16 19:22 | 80m | -1 / +4 | IZ2ZSF | +2 / -13 | 5 | ✓ Full exchange observed |
| 10-16 19:20 | 80m | -8 / - | R3PLA | -1 / -7 | 3 | ✓ Closing observed |
| 10-16 19:18 | 80m | +3 / -13 | R7KKO | -8 / -8 | 4 | ✓ Full exchange observed |
| 10-16 19:17 | 80m | +4 / -11 | RA4NCC | -15 / - | 5 | ✓ Closing observed |
| 10-16 19:16 | 80m | - / -9 | OE8JOTA | +3 / - | 2 | Partial capture |
| 10-16 19:06 | 80m | -4 / - | HA1RB | - / -13 | 2 | Partial capture |
| 10-16 18:57 | 40m | -5 / - | OE1AES | - / -16 | 2 | Partial capture |
| 10-16 18:56 | 40m | -6 / - | PA1EDL/J | - / -13 | 2 | Partial capture |
| 10-16 18:54 | 40m | -2 / - | PC1K | - / -15 | 2 | ✓ Closing fragment |
| 10-16 18:53 | 40m | +2 / - | 9A5MP | - / -19 | 2 | Partial capture |
| 10-16 18:52 | 40m | - / -19 | LZ1DPP | -2 / - | 2 | ✓ Closing fragment |
| 10-16 18:50 | 40m | -4 / - | EY7BM | - / -15 | 2 | Partial capture |
| 10-10 18:23 | 40m | - / - | DL8TV | +8 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192700 +8 1344 R1BC R2DDA -04 192715 -9 1347 R2DDA R6DUW KN96 192715 +10 643 R2DDA R1BC R-15 192730 +4 1344 R1BC R2DDA RR73 192745 -11 1347 R2DDA R6DUW KN96 192745 +11 643 R2DDA R1BC 73 192800 -3 1344 R6DUW R2DDA -07 192815 -8 1347 R2DDA R6DUW R-02 (x2) 192900 +12 2704 R6DUW R2DDA RR73 192915 -16 1347 R2DDA R6DUW R-02 192930 +13 2704 HB3YYA R2DDA -17 192945 -12 1347 R2DDA R6DUW RR73 193000 +6 846 OD5ZZ R2DDA -13 (x2)
UTC dB Audio Message 181730 -10 2387 BD4RHV R2DDA RR73 181800 -8 2387 YB2TTM R2DDA -14 183500 -2 2638 BG5CCB R2DDA -16 183530 +9 2638 BG2EFX R2DDA -19 183630 -3 1030 A61DD R2DDA -06 (x2) 183730 +4 2228 HZ1IQ R2DDA -15 (x2) 184015 -4 2639 BH3FZG R2DDA -11 184115 -4 808 AP5ARS R2DDA -12 184145 -6 808 RA0SCA R2DDA -12 (x2) 184245 -9 837 AP5ARS R2DDA -17 (x3)
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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