F4JBR — 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 F4JBR, decoded by SO8OO in southeastern Poland. 243 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-13 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 243 FT8 messages attributed to F4JBR as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 80 m (30%) and 40 m (17%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.9 dB.
Overview
Bands
Last attributed message: 2026-11-02 19:49 UTC
Observed FT8 message patterns
- Attributed sample
- 243 messages
- Active dates
- 13 UTC dates
- Estimated median S/N
- -9.9 dB
- Estimated 10th-90th percentile
- -21 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 63, moderate (-15 to -9 dB) 66, strong (≥ -8 dB) 114.
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 F4JBR 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 F4JBR
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
- JN15 · 143 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,485 km (approx.)
- Last such locator decoded
- 2026-11-02 19:48 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 | F4JBR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-02 19:48 | 160m | -24 / -20 | YT2ZE | -10 / -12 | 5 | ✓ Full exchange observed |
| 11-02 19:45 | 160m | - / -6 | I8OHQ | -4 / - | 2 | ✓ Closing fragment |
| 11-02 19:41 | 160m | - / -11 | HB9PLH | -12 / - | 2 | ✓ Closing fragment |
| 10-30 18:54 | 160m | -14 / - | 6W/IK2HKT | - / -19 | 2 | Partial capture |
| 10-30 17:45 | 160m | - / - | PA3EVY | -16 / - | 2 | ✓ Closing fragment |
| 10-30 17:45 | 160m | - / - | UT7UA | +10 / - | 3 | Partial capture |
| 10-30 17:42 | 160m | -22 / - | G0BNR | -15 / -7 | 2 | ✓ Closing observed |
| 10-29 19:10 | 160m | -12 / - | R2FC | - / - | 3 | Partial capture |
| 10-29 19:08 | 160m | -12 / - | EA7KOM | - / -6 | 2 | ✓ Closing fragment |
| 10-29 19:06 | 160m | -14 / -14 | UB1Q | -19 / -22 | 6 | ✓ Full exchange observed |
| 10-29 19:01 | 160m | -16 / -22 | HB9DVO | -6 / -17 | 5 | ✓ Full exchange observed |
| 10-29 19:00 | 160m | -7 / -22 | R4FDK | -18 / -15 | 8 | ✓ Full exchange observed |
| 10-29 18:58 | 160m | -24 / -4 | S57AM | 0 / -5 | 3 | ✓ Full exchange observed |
| 10-29 18:12 | 160m | -18 / - | JF8QNF | - / - | 2 | Partial capture |
| 10-29 17:57 | 160m | - / -14 | OK1VKX | -12 / - | 4 | ✓ Closing fragment |
| 10-29 17:48 | 160m | - / -14 | SQ9PBV | -10 / - | 4 | ✓ Closing fragment |
| 10-29 17:40 | 160m | - / -2 | IZ8VYU | -22 / - | 3 | ✓ Closing fragment |
| 10-28 19:53 | 160m | -16 / - | E73S | - / - | 2 | Partial capture |
| 10-28 19:50 | 160m | -10 / - | EW4M | - / - | 2 | Partial capture |
| 10-28 19:49 | 160m | -10 / - | EA5V | - / -1 | 2 | ✓ Closing fragment |
| 10-28 19:48 | 160m | -12 / - | IQ0AK | -11 / - | 2 | ✓ Closing observed |
| 10-28 19:45 | 160m | -18 / +1 | C31CT | -6 / +4 | 4 | ✓ Full exchange observed |
| 10-28 19:43 | 160m | -18 / - | SQ9PBV | - / -18 | 2 | Partial capture |
| 10-28 19:38 | 160m | -10 / +2 | DD3KF | 0 / 0 | 3 | Partial capture |
| 10-28 19:36 | 160m | -10 / -11 | EC4TR | -10 / +2 | 4 | ✓ Full exchange observed |
| 10-28 19:34 | 160m | - / - | SQ1RTU | -21 / - | 2 | Partial capture |
| 10-28 19:30 | 160m | -16 / - | YU7JDE | - / - | 2 | Partial capture |
| 10-28 19:24 | 160m | -12 / -4 | EI4DQ | -10 / -5 | 5 | ✓ Full exchange observed |
| 10-28 19:22 | 160m | - / -16 | IU3RRX | -8 / - | 3 | ✓ Closing fragment |
| 10-28 19:20 | 160m | -14 / - | EI4DQ | - / - | 2 | Partial capture |
| 10-28 19:17 | 160m | - / - | DF4WQ | -17 / - | 7 | Partial capture |
| 10-28 19:17 | 160m | -15 / - | M0IOY | - / -12 | 3 | ✓ Closing fragment |
| 10-25 05:55 | 40m | -6 / - | KO4FQW | - / -15 | 2 | ✓ Closing fragment |
| 10-25 05:52 | 40m | - / - | DL9KM | -8 / - | 7 | Partial capture |
| 10-25 05:50 | 40m | -13 / - | SP0LPR | - / -12 | 2 | ✓ Closing fragment |
| 10-25 05:49 | 40m | -8 / - | K2JC | - / -16 | 2 | ✓ Closing fragment |
| 10-25 05:48 | 40m | - / - | F4BYA | +4 / - | 4 | Partial capture |
| 09-06 02:49 | 40m | +8 / - | LZ3AI | - / -19 | 2 | Partial capture |
| 09-06 02:48 | 40m | - / - | TA2EE | -18 / - | 2 | Partial capture |
| 09-06 02:48 | 40m | +2 / - | UT2AU | -12 / - | 4 | ✓ Closing observed |
| 09-06 02:46 | 40m | +2 / - | N8SLT | - / -8 | 2 | ✓ Closing fragment |
| 09-06 02:43 | 40m | +2 / - | WA4UVH | - / -10 | 2 | Partial capture |
| 09-06 02:43 | 40m | - / +9 | IZ8PPI | -19 / - | 4 | Partial capture |
| 09-06 02:40 | 40m | +2 / - | T77NC | - / -14 | 5 | ✓ Closing fragment |
| 09-06 02:37 | 80m | - / -4 | F1PBZ | +2 / - | 4 | Partial capture |
| 09-06 02:34 | 80m | 0 / -8 | OZ8MW | -1 / +1 | 5 | ✓ Full exchange observed |
| 09-06 02:31 | 80m | +11 / 0 | F4NGK | -9 / -7 | 3 | Partial capture |
| 09-06 02:27 | 80m | +5 / +8 | DL1YAU | -9 / -1 | 5 | ✓ Full exchange observed |
| 09-06 02:25 | 80m | +10 / 0 | DO8JB | -3 / -2 | 5 | ✓ Full exchange observed |
| 09-06 02:22 | 80m | +9 / -10 | R7FQ | -8 / -9 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185645 -17 1203 CQ F4JBR JN15 (x2) 194100 -13 1152 F4JBR HB9PLH -11 194130 -14 1009 F4JBR M0IOY IO93 194130 -12 1152 F4JBR HB9PLH RR73 194415 -17 1107 DJ1TU F4JBR -14 194530 -3 2540 F4JBR I8OHQ -06 (x2) 194645 -17 1107 CQ F4JBR JN15 (x2) 194845 -24 1107 YT2ZE F4JBR JN15 194900 -14 1909 F4JBR YT2ZE -20 194915 -24 1106 YT2ZE F4JBR R-12 194930 -6 1909 F4JBR YT2ZE RR73 194945 -23 1107 YT2ZE F4JBR 73
UTC dB Audio Message 055200 -15 1229 KD2VRL F4JBR R-25 055245 -7 1283 F4JBR DL9KM JN68 (x6) 055530 -3 1227 KO4FQW F4JBR -15 055545 -8 1283 F4JBR DL9KM JN68 055600 -9 1227 KO4FQW F4JBR RR73 055730 -1 1227 CQ F4JBR JN15 (x2) 055815 +1 1229 F4JBR DJ4WM JO42 055845 -12 1408 F4JBR PD4RJ JO33 055845 -18 1687 F4JBR IZ6BYS JN72
UTC dB Audio Message 023700 -4 1180 CQ F4JBR JN15 023715 -12 559 F4JBR SQ3KO JO82 023715 +5 2605 F4JBR F1PBZ -04 023730 +1 1180 CQ F4JBR JN15 023745 +4 2605 F4JBR F1PBZ -04 023800 +5 1180 CQ F4JBR JN15 023815 -2 2605 F4JBR F1PBZ -04 023830 +5 1180 CQ F4JBR JN15 023845 +0 2605 F4JBR F1PBZ -04 023900 +0 1180 CQ F4JBR JN15 (x6)
UTC dB Audio Message 044800 -12 1352 F4JBR G8OO JO02 044800 -17 2073 F4JBR DL9KM JN68 044830 -10 1351 F4JBR G8OO JO02 044830 -11 2073 F4JBR DL9KM JN68 044900 -13 1351 F4JBR G8OO JO02 044900 -11 2073 F4JBR DL9KM JN68 044930 -12 1351 F4JBR G8OO JO02 (x2) 052045 -11 1110 NP3MR F4JBR JN15 (x3) 052215 -13 1109 CQ F4JBR JN15 (x4)
UTC dB Audio Message 064345 +4 1068 KS4OT F4JBR RR73 064415 +0 1067 CQ F4JBR JN15 064430 +3 271 F4JBR RA6OY KN88 064445 +12 1067 CQ F4JBR JN15 064515 +12 1067 R5BQ F4JBR -09 (x2) 064600 +7 1710 F4JBR R5BQ -16 064615 +10 1066 R5BQ F4JBR R-07 064630 +5 1710 F4JBR R5BQ RR73 064645 +5 1065 R5BQ F4JBR 73 064715 -3 1065 CQ F4JBR JN15 (x5)
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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