JI4JKO — 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 JI4JKO, decoded by SO8OO in southeastern Poland. 295 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-05.
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 295 FT8 messages attributed to JI4JKO as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 80 m (22%) and 20 m (22%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-11-05 21:46 UTC
Observed FT8 message patterns
- Attributed sample
- 295 messages
- Active dates
- 55 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -20 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 138, strong (≥ -8 dB) 65.
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 JI4JKO 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 JI4JKO
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
- PM64 · 113 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,453 km (approx.)
- Last such locator decoded
- 2026-11-05 21:44 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 | JI4JKO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 22:05 | 80m | - / -22 | HB9TOC | +3 / - | 3 | ✓ Closing fragment |
| 11-05 21:46 | 80m | -23 / -14 | EA3EDU | -13 / - | 2 | ✓ Closing observed |
| 11-05 21:44 | 80m | -22 / - | T77NM | -11 / - | 2 | ✓ Closing observed |
| 11-05 21:23 | 80m | - / -17 | EA7TR | -4 / - | 3 | ✓ Closing fragment |
| 11-05 21:19 | 80m | - / -18 | OE8DDX | +12 / - | 2 | ✓ Closing fragment |
| 11-05 19:36 | 80m | - / -16 | Z33PB | 0 / - | 6 | Partial capture |
| 11-05 19:35 | 80m | - / -19 | IV3SKB | +20 / - | 2 | ✓ Closing fragment |
| 11-05 19:32 | 80m | - / - | EA3EDU | -9 / - | 5 | Partial capture |
| 11-05 19:31 | 80m | - / -13 | F5UKW | +8 / - | 2 | ✓ Closing fragment |
| 11-05 19:20 | 80m | - / - | EA3EDU | -14 / - | 2 | Partial capture |
| 11-05 19:04 | 80m | - / - | YO6BLU | +9 / - | 4 | Partial capture |
| 11-05 19:03 | 80m | - / - | OM2WQ | +8 / - | 6 | Partial capture |
| 11-05 19:00 | 80m | - / -15 | EA5DF | -5 / - | 3 | Partial capture |
| 11-04 22:30 | 40m | - / - | CT7BRV | -12 / - | 2 | Partial capture |
| 11-04 21:40 | 40m | -14 / - | IW0BSQ | - / - | 2 | Partial capture |
| 11-04 21:17 | 80m | - / -6 | YL3OI | +22 / - | 2 | ✓ Closing fragment |
| 11-04 20:55 | 40m | - / -20 | F6BPZ | -6 / - | 3 | Partial capture |
| 11-03 21:56 | 80m | - / -16 | IK2LFF | +6 / - | 2 | Partial capture |
| 11-03 21:44 | 160m | - / -17 | HB9CXZ | +1 / - | 3 | ✓ Closing fragment |
| 11-03 21:41 | 160m | - / - | F4EUF | -10 / - | 2 | Partial capture |
| 11-03 21:41 | 160m | - / - | DL1CC | 0 / - | 2 | Partial capture |
| 11-03 21:41 | 160m | - / -14 | IK5SRB | -3 / - | 3 | ✓ Closing fragment |
| 11-03 21:41 | 160m | - / - | YO3YV | -24 / - | 2 | Partial capture |
| 11-03 21:38 | 160m | - / -15 | IZ3GOO | -1 / - | 2 | ✓ Closing fragment |
| 11-03 20:28 | 80m | - / -12 | OM2WQ | +11 / - | 5 | ✓ Closing fragment |
| 11-03 20:06 | 160m | - / - | 9A5E | +4 / - | 2 | Partial capture |
| 11-03 20:03 | 160m | - / -15 | DL3IAE | +12 / - | 2 | Partial capture |
| 11-03 20:02 | 160m | - / -14 | IK4PLW | -6 / - | 2 | ✓ Closing fragment |
| 11-03 20:00 | 160m | - / - | OK1XV | 0 / - | 9 | Partial capture |
| 11-03 19:59 | 160m | - / -8 | OH7XI | +3 / - | 2 | ✓ Closing fragment |
| 11-03 19:42 | 160m | - / - | UX0LL | +5 / - | 3 | Partial capture |
| 11-03 18:53 | 160m | - / - | DK5SO | -5 / - | 4 | Partial capture |
| 11-03 18:53 | 160m | - / -19 | S58T | +7 / - | 4 | ✓ Closing fragment |
| 11-03 18:52 | 160m | - / - | DF4NR | +10 / - | 2 | Partial capture |
| 11-03 18:48 | 160m | - / - | DF4NR | +7 / - | 3 | Partial capture |
| 11-03 18:48 | 160m | - / -13 | DL3IAE | +16 / - | 3 | Partial capture |
| 11-03 18:48 | 160m | - / - | R5BS | -5 / - | 2 | Partial capture |
| 11-03 18:47 | 160m | - / -15 | IW3GRG | +20 / - | 2 | Partial capture |
| 11-03 18:46 | 160m | - / +2 | OH7MA | -8 / - | 2 | ✓ Closing fragment |
| 11-02 21:26 | 80m | - / - | OM2WQ | +23 / - | 3 | Partial capture |
| 11-02 21:14 | 80m | - / -21 | I0KMJ | +5 / - | 2 | ✓ Closing fragment |
| 11-02 21:14 | 80m | - / -9 | Z34K | -14 / - | 4 | Partial capture |
| 11-02 21:13 | 80m | - / -13 | OE8TED | +9 / - | 2 | ✓ Closing fragment |
| 11-02 21:06 | 80m | - / -18 | UA3QQG | -10 / - | 2 | Partial capture |
| 11-02 21:05 | 80m | - / - | UA6LQZ | 0 / - | 3 | Partial capture |
| 11-02 21:00 | 80m | - / -12 | E78W | +8 / - | 4 | ✓ Closing fragment |
| 11-02 20:27 | 160m | - / 0 | SP5EXA | +10 / - | 3 | ✓ Closing fragment |
| 11-02 20:27 | 160m | - / - | IZ7NLJ | +3 / - | 2 | Partial capture |
| 11-02 20:02 | 160m | - / - | R3ZMM | -9 / - | 3 | Partial capture |
| 11-02 19:57 | 160m | - / - | OH3NAQ | +10 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 082300 -13 1787 JI4JKO TA6B -03 (x2) 081315 -14 1575 JI4JKO SV9MBL RRR 080030 -22 1999 JI4JKO F1TXI RR73 052630 -19 2270 JI4JKO RQ7R KN64 (x4) 072945 -11 717 JI4JKO A92GE -16 070645 -22 1748 JI4JKO A41DV -07 093115 -11 496 JI4JKO <...> -06 075130 -21 1666 JI4JKO R9FFZ LO89 082700 -18 992 ES6RQ JI4JKO PM64 (x2) 082630 -14 747 JI4JKO 6W/IK2HKT -15
UTC dB Audio Message 193915 +1 366 JI4JKO Z33PB -16 211430 +0 989 JI4JKO W1AW/4 -15 211930 +12 2554 JI4JKO OE8DDX -18 (x2) 212130 +1 1227 JI4JKO ON6LEO -24 212300 -6 254 JI4JKO EA7TR IM76 (x3) 214415 -22 434 T77NM JI4JKO PM64 214430 -11 198 JI4JKO T77NM 73 214630 -13 555 JI4JKO EA3EDU R-14 214645 -23 434 EA3EDU JI4JKO RR73 220530 +12 410 JI4JKO HB9TOC -22 (x3)
UTC dB Audio Message 191445 -11 671 JI4JKO OP9T JO21 191500 +5 927 JI4JKO ON8DM JO10 212900 -24 2134 JI4JKO SV7CFP -13 204330 -7 590 JI4JKO ZL1RPC/F -04 205515 -11 1261 JI4JKO F6BPZ -20 (x3) 213100 -9 1071 JI4JKO 5B4AMX RR73 213145 -12 660 SV8IE JI4JKO R-14 214045 -15 715 IW0BSQ JI4JKO PM64 (x2) 214500 -9 992 JI4JKO 9K2YM RR73 222945 -10 1740 JI4JKO EA5EE -11 223015 -12 1929 JI4JKO CT7BRV IM58 (x2)
UTC dB Audio Message 213845 +5 1824 JI4JKO IZ3GOO -15 (x2) 214115 -24 1453 JI4JKO YO3YV KN34 214115 +5 1952 <JI4JKO> SP/DL5DBO 214115 -2 1608 JI4JKO IK5SRB JN63 214115 +0 1063 JI4JKO DL1CC JO72 214145 -24 1453 JI4JKO YO3YV KN34 214145 +1 1608 JI4JKO IK5SRB R-14 214145 -10 1163 JI4JKO F4EUF JN39 214145 -1 1063 JI4JKO DL1CC JO72 214215 -7 1608 JI4JKO IK5SRB 73 214215 -11 1163 JI4JKO F4EUF JN39 214415 +0 2228 JI4JKO HB9CXZ -17 (x3)
UTC dB Audio Message 195400 -7 1628 JI4JKO G5TV R-11 (x2) 195930 -15 1068 JI4JKO IU5AWQ JN53 (x4) 200130 -4 609 JI4JKO F5SPJ -22 (x5) 225030 -9 872 JI4JKO CT2HEX -04 (x2) 230330 -6 1278 JI4JKO CT1FIU -17 (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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