R3KJF — 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 R3KJF, decoded by SO8OO in southeastern Poland. 2,765 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-02.
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 2,765 FT8 messages attributed to R3KJF as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 20 m (12%) and 80 m (10%). Most decodes (58%) fell within the six-hour window 13:00-19:00 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: 2026-11-02 04:54 UTC
Observed FT8 message patterns
- Attributed sample
- 2,765 messages
- Active dates
- 58 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -16 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 311, moderate (-15 to -9 dB) 715, strong (≥ -8 dB) 1,739.
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 R3KJF 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 R3KJF
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
- KO91 · 1,470 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,221 km (approx.)
- Last such locator decoded
- 2026-11-02 04:54 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 | R3KJF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-02 04:53 | 40m | -8 / - | TA3NP | - / - | 2 | Partial capture |
| 11-02 04:51 | 40m | -6 / - | SP4FEU | - / +2 | 4 | ✓ Closing fragment |
| 11-02 04:50 | 40m | -4 / - | F4CQS | - / - | 2 | Partial capture |
| 11-02 04:49 | 40m | -5 / - | TA1EV | - / -14 | 3 | ✓ Closing fragment |
| 11-02 04:48 | 40m | -5 / - | IK3/UY7LA | - / - | 2 | Partial capture |
| 11-02 04:46 | 40m | -2 / - | LZ2IP | - / -3 | 3 | ✓ Closing fragment |
| 11-02 04:43 | 40m | -2 / -10 | F5OAM | -17 / -10 | 3 | Partial capture |
| 11-02 04:41 | 40m | -12 / - | IT9JNR | -9 / - | 2 | ✓ Closing observed |
| 11-02 04:39 | 40m | -13 / - | OE6JVE | - / -13 | 3 | ✓ Closing fragment |
| 11-02 04:36 | 40m | - / -3 | TC2TR | -12 / - | 2 | ✓ Closing fragment |
| 11-01 05:41 | 40m | -8 / - | SP6U | - / -18 | 2 | Partial capture |
| 11-01 05:39 | 40m | -4 / - | ZL1OGX | - / - | 2 | ✓ Closing fragment |
| 11-01 05:24 | 40m | -11 / - | EA3IVL | - / -12 | 3 | ✓ Closing fragment |
| 11-01 05:20 | 40m | -10 / - | ZL3IO | - / -14 | 2 | ✓ Closing fragment |
| 11-01 05:18 | 40m | -14 / - | UA2FFD | - / - | 2 | Partial capture |
| 11-01 05:15 | 40m | -12 / - | HK3AB | - / - | 2 | Partial capture |
| 11-01 05:14 | 40m | -11 / - | PY5AL | - / -22 | 4 | ✓ Closing fragment |
| 11-01 05:11 | 40m | -13 / - | IZ5WTV | - / -8 | 3 | ✓ Closing fragment |
| 11-01 05:10 | 40m | -12 / - | PY5AL | - / - | 2 | Partial capture |
| 11-01 05:08 | 40m | -12 / -1 | PV8AJ | -19 / -20 | 5 | ✓ Full exchange observed |
| 11-01 05:06 | 40m | -13 / - | YO6BHN | - / -14 | 3 | ✓ Closing fragment |
| 11-01 05:04 | 40m | -11 / - | YO5OHT | - / +4 | 3 | ✓ Closing fragment |
| 11-01 05:03 | 40m | -12 / -10 | CT7BRV | -8 / -6 | 4 | ✓ Full exchange observed |
| 11-01 04:52 | 40m | -7 / - | YO2MKE | - / -6 | 2 | ✓ Closing fragment |
| 11-01 04:47 | 40m | +2 / - | PY2MER | - / -21 | 6 | Partial capture |
| 11-01 04:46 | 40m | +3 / - | SQ9LFQ | - / -2 | 3 | ✓ Closing fragment |
| 11-01 04:45 | 40m | +4 / - | OK2CNI | - / -12 | 2 | ✓ Closing fragment |
| 11-01 04:42 | 40m | -4 / - | R4ADE | - / -6 | 3 | ✓ Closing fragment |
| 11-01 04:40 | 40m | -9 / 0 | RC1C | -15 / -9 | 5 | ✓ Full exchange observed |
| 11-01 04:40 | 40m | -10 / -8 | EA4HTI | -20 / -15 | 5 | ✓ Full exchange observed |
| 11-01 04:39 | 40m | -14 / - | SP1EG | - / -8 | 2 | ✓ Closing fragment |
| 11-01 04:38 | 40m | -8 / - | HF50HSP | - / +6 | 2 | Partial capture |
| 11-01 04:37 | 40m | -12 / - | XQ3SK | - / - | 2 | Partial capture |
| 10-28 05:33 | 40m | -12 / - | F4MXT/P | - / - | 2 | Partial capture |
| 10-28 05:32 | 40m | -9 / - | RZ4FWA | - / - | 3 | Partial capture |
| 10-28 05:26 | 40m | -8 / +1 | DK1HSI | -1 / - | 6 | Partial capture |
| 10-28 05:24 | 40m | -8 / - | UA9SY | - / -11 | 2 | ✓ Closing fragment |
| 10-28 05:23 | 40m | -6 / - | R2FDP | - / -12 | 2 | Partial capture |
| 10-27 14:55 | 40m | -8 / - | R6ZBQ | - / - | 3 | Partial capture |
| 10-27 14:52 | 40m | -3 / - | YB2TTM | - / - | 2 | Partial capture |
| 10-27 14:49 | 40m | -4 / +2 | SN9Q | +10 / +2 | 4 | ✓ Full exchange observed |
| 10-27 14:48 | 40m | -4 / - | UB8SII | - / - | 2 | Partial capture |
| 10-27 14:25 | 40m | -4 / - | YD2CXP | - / -18 | 2 | Partial capture |
| 10-27 14:24 | 40m | -6 / - | DS5TOS | - / -11 | 3 | ✓ Closing fragment |
| 10-27 14:22 | 40m | -8 / - | UB8SII | - / - | 2 | Partial capture |
| 10-27 14:20 | 40m | -8 / - | R4IR | - / -1 | 3 | ✓ Closing fragment |
| 10-27 14:17 | 40m | -8 / - | UA0LQE | - / -14 | 2 | ✓ Closing fragment |
| 10-27 14:15 | 40m | -5 / - | RA9YDL | - / -3 | 3 | Partial capture |
| 10-27 14:14 | 40m | -3 / - | R6GY | - / - | 2 | Partial capture |
| 10-27 14:11 | 40m | -7 / - | R0WC | - / -1 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 044645 -2 1432 LZ2IP R3KJF R-03 (x2) 044800 -7 1432 IK3/UY7LA R3KJF KO91 (x2) 044900 -1 1432 TA1EV R3KJF KO91 (x3) 045030 -2 1432 F4CQS R3KJF KO91 (x2) 045145 -6 1432 SP4FEU R3KJF KO91 (x4) 045345 -10 1431 TA3NP R3KJF KO91 (x2)
UTC dB Audio Message 152430 -3 1551 UA7FV R3KJF KO91 (x2) 152515 -20 203 R3KJF UA7FV RR73 152530 -3 1551 UA7FV R3KJF 73 152600 -6 1551 UA6AKW R3KJF KO91 152630 +1 1551 CQ R3KJF KO91 152700 -4 1551 UA6AKW R3KJF R-01 (x2) 152800 -8 1551 RZ6BS R3KJF KO91 152845 -1 1691 R3KJF HA8LD -12 (x2) 153115 -2 1243 R3KJF RA5BM RR73 153315 -17 1145 R3KJF R3DRA RR73 153415 -24 1190 R3KJF R9TT -16 153500 -1 1551 R9TT R3KJF 73
UTC dB Audio Message 053030 -2 1543 R3KJF 9A4ZM JN86 (x2)
UTC dB Audio Message 095830 -13 1444 DO7RMS R3KJF KO91 095930 -11 1443 RX3DQ R3KJF KO91 100100 -10 1443 DL1NEO R3KJF 73 100230 -13 1443 9A3AUH R3KJF R-10 (x2) 100400 -13 1443 PA1GLD R3KJF KO91 (x2) 100445 -19 1531 R3KJF PA1GLD -12 100500 -11 1443 PA1GLD R3KJF R-13 (x2) 101400 -11 1701 R3KJF EA5JCG -12 (x4) 112800 -14 2495 R3KJF CR7BUW IM58
UTC dB Audio Message 090300 +6 2212 HA5MG/MM R3KJF KO91 090330 +2 2212 <II4KEMP> R3KJF KO91 091400 +7 2211 M9KJY R3KJF KO91 (x2) 111545 -13 2148 OZ7BFC R3KJF 73 111615 -12 2148 OR5T R3KJF KO91 111630 -1 1101 R3KJF OR5T -04 (x2) 112130 -2 2148 R3KJF RL3QGD KO91 (x3) 121230 -11 2147 R3KJF SP1ZMO JO73 (x4)
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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee