RT3K — 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 RT3K, decoded by SO8OO in southeastern Poland. 1,791 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.
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 1,791 FT8 messages attributed to RT3K as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 10 m (22%) and 40 m (21%). The busiest six-hour window was 01:00-07:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-23 18:03 UTC
Observed FT8 message patterns
- Attributed sample
- 1,791 messages
- Active dates
- 65 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 324, moderate (-15 to -9 dB) 648, strong (≥ -8 dB) 819.
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 RT3K 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 RT3K
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
- KN99 · 427 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,235 km (approx.)
- Last such locator decoded
- 2026-10-22 19:06 UTC
Other locator fields attributed to this token: KO90 (316).
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 | RT3K S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 18:00 | 80m | -4 / - | YO8ROM | - / -16 | 4 | Partial capture |
| 10-23 17:59 | 80m | -6 / - | OZ9FF | - / -21 | 2 | Partial capture |
| 10-23 17:48 | 80m | -12 / -11 | RG4C | -13 / -2 | 10 | ✓ Full exchange observed |
| 10-23 17:47 | 80m | -8 / -5 | R2AVW | +1 / -4 | 5 | ✓ Full exchange observed |
| 10-23 17:46 | 80m | -7 / -16 | RA4PKA | -22 / -13 | 4 | ✓ Full exchange observed |
| 10-23 17:44 | 80m | -2 / - | SP7ZM | - / -18 | 2 | Partial capture |
| 10-23 17:42 | 80m | -4 / -7 | LZ2XA | 0 / -3 | 4 | ✓ Full exchange observed |
| 10-23 17:41 | 80m | -7 / -10 | RD9FC | -10 / -14 | 4 | ✓ Full exchange observed |
| 10-23 17:25 | 80m | -12 / - | YT2ZE | -9 / - | 2 | ✓ Closing observed |
| 10-23 16:38 | 80m | - / -8 | YT7DX | +7 / - | 3 | ✓ Closing fragment |
| 10-23 16:37 | 40m | - / -8 | R3XBB | -12 / - | 2 | Partial capture |
| 10-23 16:36 | 40m | - / -12 | OK1XLE | +11 / - | 3 | Partial capture |
| 10-23 16:31 | 40m | - / -5 | RU3XX | -8 / - | 2 | ✓ Closing fragment |
| 10-23 16:23 | 40m | -17 / - | R3DCA | -12 / -10 | 2 | ✓ Closing observed |
| 10-23 16:21 | 40m | -10 / -19 | DA3W | -16 / -20 | 4 | Partial capture |
| 10-23 16:20 | 40m | -10 / - | R3BKM | - / -15 | 2 | Partial capture |
| 10-23 16:18 | 40m | -6 / - | OH7UE | - / -6 | 2 | Partial capture |
| 10-23 16:17 | 40m | -13 / - | SP4CIW | -16 / -13 | 2 | ✓ Closing observed |
| 10-23 15:55 | 40m | -11 / -12 | DD7EE | -3 / -15 | 2 | Partial capture |
| 10-23 15:44 | 40m | - / -13 | DF0KK | +5 / - | 3 | ✓ Closing fragment |
| 10-23 15:38 | 40m | -12 / -9 | RA6YZ | -14 / - | 3 | ✓ Closing observed |
| 10-23 15:35 | 40m | - / - | R2BP | -8 / - | 2 | ✓ Closing fragment |
| 10-23 15:33 | 40m | - / -8 | RL1F | -12 / - | 2 | ✓ Closing fragment |
| 10-23 15:30 | 40m | -13 / - | SV1DKR | -17 / -2 | 3 | ✓ Closing observed |
| 10-23 14:55 | 40m | -10 / -2 | YO4DW | -2 / -3 | 3 | ✓ Full exchange observed |
| 10-22 19:06 | 80m | -7 / - | R3PLA | - / -12 | 2 | ✓ Closing fragment |
| 10-22 19:04 | 80m | -4 / -8 | R3DQT | -7 / -7 | 3 | ✓ Full exchange observed |
| 10-22 19:02 | 80m | -9 / -18 | SP5ALV | +2 / -11 | 7 | ✓ Full exchange observed |
| 10-22 18:49 | 80m | -11 / +7 | DL1CC | +9 / -13 | 5 | ✓ Full exchange observed |
| 10-22 18:44 | 80m | - / - | DG5LP | -3 / - | 3 | Partial capture |
| 10-22 18:44 | 80m | - / - | DF8RU | -5 / - | 3 | Partial capture |
| 10-22 18:43 | 80m | -12 / -10 | RA2FU | +8 / -21 | 7 | ✓ Full exchange observed |
| 10-22 18:36 | 80m | -10 / - | YO3HUI | - / -18 | 2 | ✓ Closing fragment |
| 10-22 18:03 | 40m | -5 / -11 | M1DBW | 0 / - | 3 | ✓ Closing observed |
| 10-22 17:58 | 40m | 0 / -4 | ON6WDL | +21 / -8 | 4 | ✓ Full exchange observed |
| 10-22 17:57 | 40m | - / -17 | PD1B | -4 / - | 2 | ✓ Closing fragment |
| 10-22 17:38 | 80m | -9 / -3 | OH6RE | +6 / -16 | 3 | ✓ Full exchange observed |
| 10-22 17:37 | 80m | -3 / -9 | S59A | +15 / -6 | 5 | ✓ Full exchange observed |
| 10-22 17:36 | 80m | -2 / -11 | RA2F | -2 / - | 3 | ✓ Closing observed |
| 10-22 17:36 | 80m | - / -15 | EU1EU | -1 / - | 2 | Partial capture |
| 10-22 17:34 | 80m | -5 / -6 | DO6LE | +2 / -22 | 5 | ✓ Full exchange observed |
| 10-22 17:31 | 80m | -12 / +1 | R5ACQ | +2 / -12 | 4 | ✓ Full exchange observed |
| 10-22 17:12 | 80m | -8 / - | RA5AD | -7 / -7 | 3 | ✓ Closing observed |
| 10-21 18:26 | 80m | -9 / - | RN3ZBX | -9 / -3 | 3 | ✓ Closing observed |
| 10-21 18:24 | 80m | -4 / - | R8PG | -3 / - | 2 | ✓ Closing observed |
| 10-21 18:14 | 40m | -9 / -22 | PH2M | -8 / -8 | 7 | ✓ Full exchange observed |
| 10-21 18:10 | 40m | -19 / -5 | SM0NSJ | -12 / - | 3 | ✓ Closing observed |
| 10-21 18:09 | 40m | -16 / - | JT1DN | - / - | 2 | ✓ Closing fragment |
| 10-21 18:06 | 40m | - / -12 | IK0CHU | -2 / - | 2 | ✓ Closing fragment |
| 10-21 17:59 | 40m | -13 / -9 | PA1L | +1 / -3 | 8 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 175000 -13 2542 RG4C RT3K -02 (x6) 175245 -13 1897 RT3K RG4C R-11 175300 -14 2542 RG4C RT3K RR73 175315 -13 1898 RT3K RG4C 73 175900 -8 2542 OZ9FF RT3K -21 (x2) 180000 -8 2542 YO8ROM RT3K -16 (x4)
UTC dB Audio Message 162000 -13 2650 R3BKM RT3K -15 (x2) 162130 -12 2650 DA3W RT3K -20 (x2) 162315 -17 2468 R3DCA RT3K -10 162315 -16 1920 RT3K DA3W R-19 162400 -12 1510 RT3K R3DCA 73 162415 -16 1920 RT3K DA3W R-19 163130 -8 1546 RT3K RU3XX R-05 (x2) 163615 +11 981 RT3K OK1XLE R-12 (x2) 163715 -12 1510 RT3K R3XBB R-08 163715 +11 981 RT3K OK1XLE R-12 163745 -11 1510 RT3K R3XBB R-08
UTC dB Audio Message 050000 -10 1183 ZL2KR RT3K -18 081700 -4 2675 CT3MD RT3K -04 (x3) 081845 -5 865 RT3K CT3MD R-09 081900 -6 2675 CT3MD RT3K RR73 081915 +1 865 RT3K CT3MD 73 084000 -10 2675 II7MGBT RT3K -11 084015 -9 1153 RT3K TC30AUG R-13 194345 +9 1884 RT3K AO5FSB R-13 (x2) 195100 -1 2381 RT3K EA7KGJ R-15 (x2) 195500 -2 1281 RT3K EB3JT R-15 (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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