F4JKY/P — 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: France Most frequent locator attributed to this token: JN23

Receiver-side FT8 activity involving F4JKY/P, decoded by SO8OO in southeastern Poland. 272 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-06.

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 272 FT8 messages attributed to F4JKY/P as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (67%), followed by 40 m (33%). Most decodes (76%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

272
Messages attributed
19
UTC dates decoded
52
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-06 05:20 UTC

Observed FT8 message patterns

Attributed sample
272 messages
Active dates
19 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-16 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 35, moderate (-15 to -9 dB) 135, strong (≥ -8 dB) 102.

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.

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 F4JKY/P

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
JN23 · 112 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,462 km (approx.)
Last such locator decoded
2026-09-28 04:46 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 UTCBandF4JKY/P S/NCounterpartCounterpart S/NMsgsCapture
10-18 03:44 40m - / - OK6RP -2 / - 3 Partial capture
10-18 00:42 40m - / -6 OH3XR -12 / - 3 Partial capture
10-18 00:37 40m - / - OH3XR -14 / - 4 Partial capture
10-17 14:33 40m - / -13 S52D +4 / - 2 Partial capture
10-17 14:31 40m - / +7 HB9DLT -14 / - 3 ✓ Closing fragment
10-17 14:17 40m - / - OK1STK -2 / - 2 Partial capture
10-17 14:09 40m - / -6 HB9HJI -11 / - 2 ✓ Closing fragment
10-17 14:06 40m - / - DK5UR +3 / - 3 Partial capture
10-17 14:04 40m - / - DL9PN -2 / - 5 Partial capture
10-14 17:31 40m - / -10 OH3OJ +3 / - 2 Partial capture
10-14 17:08 40m - / -18 RC5F +1 / - 4 Partial capture
10-14 07:30 40m - / -16 DD2MON -12 / - 3 ✓ Closing fragment
10-14 07:25 40m - / -17 DK5UR -10 / - 3 ✓ Closing fragment
10-05 23:23 40m - / - EA7LGM 0 / - 4 Partial capture
10-05 23:14 40m - / - EA7LGM -2 / - 3 Partial capture
10-05 07:27 40m - / - G4CFS 0 / - 3 Partial capture
10-05 07:19 40m - / -16 PC2J -9 / - 3 ✓ Closing fragment
10-05 07:05 40m - / +8 DH5BM -2 / - 4 ✓ Closing fragment
10-05 06:54 40m - / -8 HB9DLT -14 / - 2 Partial capture
09-28 17:51 40m - / -15 PE1NPS -7 / - 3 Partial capture
09-28 16:12 40m - / -9 UA3ZQN 0 / - 4 Partial capture
09-28 15:48 40m - / -7 I2OGV +2 / - 2 Partial capture
09-28 15:41 40m - / -4 DL9GCR -4 / - 2 Partial capture
09-28 10:41 40m - / - SP2TQQ -23 / - 3 Partial capture
09-28 09:04 40m - / - PE1NPS -15 / - 2 Partial capture
09-28 06:13 40m - / - DL7AOM +5 / - 2 Partial capture
09-28 04:50 40m -12 / - SP1ETT - / - 2 ✓ Closing fragment
09-28 04:44 40m -15 / - KC2NJ - / -16 3 ✓ Closing fragment
09-28 04:43 40m -14 / -2 SM7WNM -22 / - 2 ✓ Closing observed
09-28 04:40 40m -13 / -11 YO4NF 0 / - 2 ✓ Closing observed
09-28 04:39 40m -6 / -11 OH3OJ -2 / -13 4 ✓ Full exchange observed
09-28 04:32 40m -7 / - US2YW - / -9 3 ✓ Closing fragment
09-28 04:30 40m -9 / - WA8UET - / -22 2 Partial capture
09-28 04:26 40m -3 / -9 TA3NK -15 / -13 4 ✓ Full exchange observed
09-28 04:25 40m -6 / -8 RN1CW -6 / -6 5 ✓ Full exchange observed
09-28 04:23 40m - / - I0CNR -11 / - 6 Partial capture
09-28 04:20 40m -4 / - WD4OBP - / -9 3 ✓ Closing fragment
09-28 04:20 40m - / - UA3PAB -6 / - 2 Partial capture
09-28 04:19 40m - / - RN1CW -10 / - 8 Partial capture
09-28 04:17 40m -8 / - KC2NJ - / -20 2 Partial capture
09-28 04:17 40m -9 / - G3TKT -6 / - 2 ✓ Closing observed
09-28 04:15 40m - / - RN1CW -3 / - 4 Partial capture
09-28 04:02 40m -10 / - YO6GLT - / -6 2 ✓ Closing fragment
09-28 03:59 40m -9 / -9 M0HYE -5 / - 4 ✓ Closing observed
09-28 03:59 40m - / - PE1NPS -11 / - 2 Partial capture
09-28 03:57 40m - / - UA3PAB +6 / - 3 Partial capture
09-28 03:56 40m -6 / - DC9GT - / - 2 ✓ Closing fragment
09-28 03:52 40m - / -14 RN6MA -15 / - 3 ✓ Closing fragment
09-28 03:48 40m -11 / - G1UMV -13 / -13 3 ✓ Closing observed
09-28 03:47 40m - / - PE1NPS -9 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
143345  +6  895  F4JKY/P S52D R-13
152415  +7 2840  F4JKY/P SP8FNA R-16
152815 -22 1334  F4JKY/P RA4NCC LO68
003745 -15 2372  F4JKY/P OH3XR KP11 (x7)
011515  +1 2839  F4JKY/P VO1AW R-02
034445  -1 2368  F4JKY/P OK6RP JO60 (x3)
064315  -1 2369  F4JKY/P IQ4JO R-01
10m
UTC    dB Audio  Message
125400  -1 3000  F4JKY/P DN9MSG JO43
155000  +6 2993  F4JKY/P EA7R +13
20m
UTC    dB Audio  Message
090815  -7 2169  F4JKY/P PD7JLP JO32
090830 -14 1002  CT1GFK/P F4JKY/P -05
090845  -4 2168  F4JKY/P PD7JLP JO32
090915  +3  821  F4JKY/P GM4CXM IO75 (x2)
091000 -13 1002  GM4CXM F4JKY/P +08
091015  -2  821  F4JKY/P GM4CXM R-02
091030 -11 1002  GM4CXM F4JKY/P RR73
091045  -1  821  F4JKY/P GM4CXM 73
091130 -14 1002  CQ POTA F4JKY/P JN23
091215  -6 1001  F4JKY/P PA2BUL JO21 (x3)
091400  -9 1002  PA2BUL F4JKY/P RR73
091415 -10 1001  F4JKY/P PA2BUL 73

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 SO8OO

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