R7KB — 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 R7KB, decoded by SO8OO in southeastern Poland. 210 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 11 UTC dates in the available aggregate history. Observed between 2026-09-28 and 2026-10-17.
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 210 FT8 messages attributed to R7KB as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (80%), followed by 80 m (20%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-17 07:13 UTC
Observed FT8 message patterns
- Attributed sample
- 210 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -13 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 144.
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 R7KB 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 R7KB
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
- KN65 · 104 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 971 km (approx.)
- Last such locator decoded
- 2026-10-17 07:07 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 | R7KB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 07:11 | 40m | +2 / - | UA3DPM | -4 / -9 | 7 | ✓ Full exchange observed |
| 10-17 07:10 | 40m | -12 / - | R6FX | - / +1 | 2 | ✓ Closing fragment |
| 10-17 07:10 | 40m | -6 / +2 | EW4DX | +14 / -3 | 7 | ✓ Full exchange observed |
| 10-17 07:06 | 40m | -12 / - | R4WZ | - / -13 | 5 | ✓ Closing fragment |
| 10-16 18:14 | 40m | +2 / - | R7KCK | -3 / - | 2 | ✓ Closing observed |
| 10-16 18:05 | 40m | -9 / - | RK1N | - / - | 2 | ✓ Closing fragment |
| 10-16 18:00 | 40m | -11 / - | UC8S | - / - | 3 | ✓ Closing fragment |
| 10-16 17:48 | 40m | - / - | R6FFB | -2 / - | 3 | Partial capture |
| 10-16 17:47 | 40m | -14 / - | LY7T | - / - | 2 | Partial capture |
| 10-16 17:42 | 40m | +2 / - | RA4ADF | -5 / -9 | 3 | ✓ Closing observed |
| 10-16 17:35 | 40m | -3 / - | JT1DN | - / - | 3 | Partial capture |
| 10-14 03:55 | 40m | - / -7 | MI7XHT | -14 / - | 2 | ✓ Closing fragment |
| 10-13 18:17 | 40m | -1 / - | TF4CU | - / - | 7 | Partial capture |
| 10-13 18:13 | 40m | -10 / - | 4X1QQ | - / - | 4 | Partial capture |
| 10-13 18:10 | 40m | -6 / -14 | EC1ALT | -10 / - | 4 | ✓ Closing observed |
| 10-13 18:08 | 40m | -8 / - | YL3FW | - / -18 | 2 | ✓ Closing fragment |
| 10-13 18:02 | 40m | -7 / - | BG0FQU | - / -12 | 3 | Partial capture |
| 10-13 18:02 | 40m | - / - | DJ0MAB | +3 / - | 2 | Partial capture |
| 10-13 18:00 | 40m | -11 / 0 | EW8AAC | -8 / -7 | 5 | ✓ Full exchange observed |
| 10-13 17:57 | 40m | -7 / -12 | EU6UE | -16 / -8 | 4 | ✓ Full exchange observed |
| 10-10 06:02 | 40m | - / - | UA3SCU | -13 / - | 2 | Partial capture |
| 10-10 06:00 | 40m | -5 / - | J48S | - / -9 | 3 | ✓ Closing fragment |
| 10-10 05:58 | 40m | -12 / - | ER3GM | - / - | 4 | Partial capture |
| 10-10 05:55 | 40m | -4 / -1 | SV1ENG | -8 / - | 7 | ✓ Closing observed |
| 10-10 05:51 | 40m | -5 / - | EK/RX3DPK | - / - | 4 | Partial capture |
| 10-08 16:30 | 80m | -14 / -13 | R4CCP | -18 / -1 | 3 | ✓ Full exchange observed |
| 10-08 16:29 | 80m | -9 / -2 | UA3QQG | -16 / -4 | 5 | ✓ Full exchange observed |
| 10-06 19:16 | 40m | -12 / -6 | SP6AMI | -6 / -10 | 4 | ✓ Full exchange observed |
| 10-06 19:11 | 40m | -4 / - | V51WH | - / - | 2 | Partial capture |
| 10-06 19:04 | 40m | 0 / - | TF4M | - / -9 | 3 | ✓ Closing fragment |
| 10-06 18:56 | 40m | -14 / - | F/DK5UR/P | - / - | 3 | Partial capture |
| 10-05 17:35 | 40m | -2 / - | DA125RH | - / -13 | 2 | Partial capture |
| 10-05 17:34 | 40m | +2 / - | R1QF | - / - | 2 | ✓ Closing fragment |
| 10-05 16:43 | 40m | -12 / - | SM3ULU | -13 / -18 | 3 | ✓ Closing observed |
| 10-05 16:39 | 40m | -9 / -4 | AM5CV | -21 / -19 | 5 | Partial capture |
| 10-05 16:35 | 40m | +2 / -6 | RD3FY | -7 / - | 5 | ✓ Closing observed |
| 10-05 16:34 | 40m | -13 / -5 | OZ1A | -14 / -9 | 2 | Partial capture |
| 10-04 17:27 | 40m | -6 / - | RW3RN | - / -14 | 2 | ✓ Closing fragment |
| 10-04 17:25 | 40m | -12 / - | LX1RFJ | -10 / - | 2 | ✓ Closing observed |
| 10-04 17:22 | 40m | -13 / - | RL2F | - / -8 | 2 | Partial capture |
| 10-04 17:19 | 40m | - / - | R6DZR | -10 / - | 2 | Partial capture |
| 10-04 17:10 | 80m | -3 / -26 | R4UA | +3 / -5 | 4 | Partial capture |
| 10-04 17:08 | 80m | - / -9 | RU3FM | -1 / - | 2 | ✓ Closing fragment |
| 10-03 17:53 | 40m | - / -3 | EW8AAC | -7 / - | 5 | Partial capture |
| 10-02 18:13 | 40m | -3 / +7 | RV3YN | -6 / 0 | 4 | ✓ Full exchange observed |
| 10-02 16:32 | 80m | - / -4 | UA3QQG | -12 / - | 4 | Partial capture |
| 10-02 16:29 | 160m | - / -8 | UI6A | -6 / - | 4 | Partial capture |
| 10-02 16:29 | 160m | - / -23 | OK2BUZ | +22 / - | 4 | Partial capture |
| 10-02 04:32 | 40m | -8 / - | UB4HVA | -16 / -8 | 4 | Partial capture |
| 10-02 04:31 | 40m | -4 / - | R3KNL | - / -7 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 071015 -14 1171 R6FX R7KB +01 071030 +15 545 R7KB EW4DX KO23 071045 -10 1170 R6FX R7KB RR73 071100 +17 545 R7KB EW4DX KO23 071115 -6 546 EW4DX R7KB -03 071130 -6 2896 R7KB UA3DPM KO95 071130 +16 545 R7KB EW4DX R+02 071145 -7 546 EW4DX R7KB RR73 071200 -2 2896 R7KB UA3DPM KO95 071200 +15 545 R7KB EW4DX 73 071230 -4 2896 R7KB UA3DPM KO95 071315 +2 2896 UA3DPM R7KB -09 071330 -3 2896 R7KB UA3DPM R+22 071345 +3 2897 UA3DPM R7KB RR73 071400 -3 2896 R7KB UA3DPM 73
UTC dB Audio Message 170845 -8 2608 R7KB RU3FM R-09 (x2) 171015 +5 2525 R7KB R4UA LO24 171130 -3 2525 R4UA R7KB -05 171315 +2 2524 R7KB R4UA R-26 (x2) 171415 +12 1300 R7KB RL3FA KO85 162900 -9 1281 UA3QQG R7KB KN65 162915 -15 1281 R7KB UA3QQG -02 162930 -8 1280 UA3QQG R7KB R-04 162945 -18 1281 R7KB UA3QQG RR73 163000 -9 1280 UA3QQG R7KB 73 163045 -19 1653 R7KB R4CCP -13 163100 -14 1653 R4CCP R7KB R-01 163115 -16 1654 R7KB R4CCP RR73
UTC dB Audio Message 162915 +31 2498 R7KB OK2BUZ -23 162945 -16 1668 R7KB UI6A -08 162945 +22 2498 R7KB OK2BUZ RRR (x2) 163015 -1 1668 R7KB UI6A -08 163030 +20 2498 R7KB OK2BUZ JN99 163045 +0 1668 R7KB UI6A -08 (x2) 174945 -8 900 R7KB R7KCK RR73
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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