JK1EBA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM95

Receiver-side FT8 activity involving JK1EBA, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-09.

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 3 FT8 messages attributed to JK1EBA as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

3
Messages attributed
3
UTC dates decoded
3
Active 15-min windows
-
S/N pattern not inferred

Bands

20m · 3
First attributed message: 2026-06-06
Last attributed message: 2026-06-09 14:39 UTC

Observed FT8 message patterns

Attributed sample
3 messages
Active dates
3 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JK1EBA in decoded directed-looking exchanges:

Most frequent locator attributed to JK1EBA

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
PM95 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,693 km (approx.)
Last such locator decoded
2026-06-09 14:39 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 UTCBandJK1EBA S/NCounterpartCounterpart S/NMsgsCapture
10-22 14:51 40m - / -18 RA4FEQ -8 / - 2 Partial capture
10-18 15:05 40m - / - R2AL -1 / - 4 Partial capture
10-14 14:46 40m - / -19 R7DX -9 / - 5 ✓ Closing fragment
10-14 14:25 40m - / - R7DX -9 / - 2 Partial capture
10-14 14:21 40m - / -19 R3XBS -6 / - 2 Partial capture
10-07 16:47 40m - / -16 DK5WL -5 / - 5 Partial capture
10-07 16:43 40m - / -14 RA6LO -9 / - 3 ✓ Closing fragment
10-07 16:39 40m - / -21 YL3NF -2 / - 2 ✓ Closing fragment
10-07 16:33 40m - / -11 UA4FEN -10 / - 2 Partial capture
10-07 16:31 40m - / -21 DK5WL -1 / - 4 ✓ Closing fragment
10-07 16:31 40m - / -6 R6DJR -3 / - 2 Partial capture
10-07 16:26 40m - / -14 HB9ELE +7 / - 4 ✓ Closing fragment
10-07 16:23 40m - / - DK5WL +1 / - 3 Partial capture
10-07 16:23 40m - / - DL2MEL -11 / - 2 Partial capture
10-07 16:23 40m - / - SV1JSM -8 / - 2 Partial capture
10-07 16:22 40m - / - US3EW -5 / - 4 Partial capture
10-07 16:21 40m - / -15 OZ9FF -8 / - 4 ✓ Closing fragment
10-07 16:11 40m - / -14 S59A +4 / - 2 ✓ Closing fragment
10-07 16:10 40m - / - R7DX -7 / - 4 Partial capture
10-07 16:09 40m - / - OK1UG +5 / - 5 Partial capture
10-07 16:05 40m - / -17 HB9ELE +3 / - 6 Partial capture
10-07 16:00 40m - / - LB7ZG -8 / - 2 Partial capture
10-07 15:59 40m - / -4 YO9PH -2 / - 2 ✓ Closing fragment
09-28 21:16 40m - / -3 5Z4VJ -12 / - 2 ✓ Closing fragment
09-28 20:59 40m - / -12 EB5AFK 0 / - 9 Partial capture
08-20 12:57 20m - / - RG5A -8 / - 2 Partial capture
08-16 16:33 20m - / -18 PG1C -3 / - 3 Partial capture
08-16 16:28 20m - / -12 UR5EDX +12 / - 4 ✓ Closing fragment
08-16 14:43 20m - / -10 MD0CCE +9 / - 2 ✓ Closing fragment
08-16 13:34 20m - / - 9A2RD +12 / - 5 Partial capture
08-08 14:47 20m - / -15 SV2HTW -1 / - 4 Partial capture
08-07 14:27 20m - / - RA3ZH -12 / - 2 Partial capture
08-07 14:08 20m - / - RA3ZH -2 / - 3 Partial capture
08-05 11:51 20m - / -5 GM0SDV -6 / - 8 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
142530  -9 1388  JK1EBA R7DX KN84 (x7)
150500  -1 1606  JK1EBA R2AL KO85 (x4)
145145 -12  802  JK1EBA RA4FEQ -18 (x2)
150915  -9  326  JK1EBA US3EW KN78
150945  +2 3008  JK1EBA RT6Z KN98
20m 
UTC    dB Audio  Message
133500  +9  510  JK1EBA 9A2RD JN65 (x3)
144330  +9 2447  JK1EBA MD0CCE -10 (x2)
162430 -13 1028  JK1EBA SM6UQL -10
162830 +11  877  JK1EBA UR5EDX KN78 (x4)
163345  -3 2263  JK1EBA PG1C -18 (x3)
125715  -7 2165  JK1EBA RG5A KN93 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee