F4JKT — 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: JN17

Receiver-side FT8 activity involving F4JKT, decoded by SO8OO in southeastern Poland. 1,227 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 51 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 1,227 FT8 messages attributed to F4JKT as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (29%), followed by 160 m (27%) and 80 m (26%). Several six-hour UTC windows tied for the largest share (77%), 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

1,227
Messages attributed
51
UTC dates decoded
170
Active 15-min windows
-13 dB
Estimated median S/N

Bands

160m · 333 80m · 319 60m · 176 40m · 352 20m · 29 10m · 18
First attributed message: 2026-06-10
Last attributed message: 2026-11-05 05:01 UTC

Observed FT8 message patterns

Attributed sample
1,227 messages
Active dates
51 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-22 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 422, moderate (-15 to -9 dB) 471, strong (≥ -8 dB) 334.

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 F4JKT 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 F4JKT

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
JN17 · 782 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,401 km (approx.)
Last such locator decoded
2026-11-05 05:01 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 UTCBandF4JKT S/NCounterpartCounterpart S/NMsgsCapture
11-05 04:38 40m -12 / - CA6SNT - / -19 3 ✓ Closing fragment
11-04 16:54 80m -8 / - RC6OU - / -16 2 ✓ Closing fragment
11-04 16:51 80m -8 / - RA6ZS - / -13 2 ✓ Closing fragment
11-04 16:44 80m - / - UX7UU +1 / - 3 Partial capture
11-04 16:43 80m -9 / - HB3YTK - / - 14 ✓ Closing fragment
11-04 16:41 80m -8 / - DK5OPA - / -13 2 ✓ Closing fragment
11-04 16:39 80m -10 / - SV7NIN - / -9 2 ✓ Closing fragment
11-04 16:29 80m -23 / - EX7DY - / -9 3 Partial capture
11-04 05:36 80m -1 / - PI40EUDXF - / - 3 Partial capture
11-04 05:30 80m -5 / - R8LCM/M - / - 4 Partial capture
11-04 05:08 80m -5 / - R9CS/P - / - 3 Partial capture
11-04 04:57 160m -18 / - KB3Z - / -22 15 ✓ Closing fragment
11-04 04:46 160m -14 / - 9H1ES - / - 14 Partial capture
11-04 04:44 160m -6 / - K3LL - / - 2 Partial capture
11-04 04:42 160m -8 / - KB3Z - / - 3 Partial capture
11-04 04:39 160m -9 / -17 SQ9PBV +12 / -14 5 ✓ Full exchange observed
11-03 05:52 60m -5 / - 6W/IK2HKT - / -8 11 Partial capture
11-03 05:49 60m -6 / -6 HF5A +11 / 0 5 ✓ Full exchange observed
11-03 05:43 160m -8 / - GB1RBL - / -12 2 ✓ Closing fragment
11-03 05:41 160m -9 / - PE7W - / - 3 Partial capture
11-02 05:42 40m -8 / - TJ1GD - / -16 7 ✓ Closing fragment
11-02 05:35 40m -9 / - TR8CA - / - 11 Partial capture
11-02 05:27 40m -6 / - FS4WBS - / - 7 Partial capture
11-02 05:18 40m +5 / - EA5HM -16 / -3 7 ✓ Closing observed
11-02 05:01 160m -14 / - 6W/IK2HKT - / - 6 Partial capture
11-02 04:50 160m -20 / - 6W/IK2HKT - / - 11 Partial capture
11-02 04:43 160m -19 / - RU4CK/P - / - 7 Partial capture
10-31 17:18 40m - / -7 M0BEW -10 / - 2 ✓ Closing fragment
10-31 17:15 40m -14 / +8 IN3EZU -18 / +1 3 ✓ Full exchange observed
10-31 17:12 40m -14 / - M0YFT -12 / -3 5 Partial capture
10-31 17:02 40m - / -5 DJ2MS -15 / - 6 ✓ Closing fragment
10-31 17:01 40m -10 / - RZ4FWA - / -15 4 Partial capture
10-31 16:59 40m -12 / - 5Z4VJ - / -16 4 Partial capture
10-31 16:57 40m -12 / - DF5DY -6 / - 3 ✓ Closing observed
10-31 16:57 40m - / - F4NQP -16 / - 2 Partial capture
10-31 16:55 40m -12 / - PD0DNA - / -16 2 ✓ Closing fragment
10-31 16:54 40m -12 / - DC7MA - / +10 2 ✓ Closing fragment
10-31 16:52 40m -13 / - IK2CMI - / -1 2 ✓ Closing fragment
10-31 16:49 40m -12 / +5 DG4VN +7 / +6 4 ✓ Full exchange observed
10-31 16:49 40m -11 / - HA3SR -21 / -10 4 Partial capture
10-30 06:35 60m -18 / - 6W/IK2HKT - / -26 18 Partial capture
10-30 06:30 60m -19 / 0 DH5NC -18 / -10 4 ✓ Full exchange observed
10-30 06:19 60m -11 / - HB9DWR - / -1 2 ✓ Closing fragment
10-30 05:51 60m -18 / - 6W/IK2HKT - / - 18 Partial capture
10-30 05:45 60m -18 / - 6W/IK2HKT - / - 6 Partial capture
10-28 05:28 160m -22 / - SQ9PBV - / -9 4 Partial capture
10-28 05:25 160m -21 / -10 IW4AOT +4 / 0 3 ✓ Full exchange observed
10-27 07:16 60m - / - F4GUK -17 / - 4 ✓ Closing fragment
10-27 06:37 60m -22 / -11 DJ7JB -7 / -2 5 ✓ Full exchange observed
10-27 06:37 60m -21 / -2 G8OO -3 / +2 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
045730 -22 1644  KB3Z F4JKT -20 (x14)
050115 -21 1359  6W/IK2HKT F4JKT JN17
40m 
UTC    dB Audio  Message
053915 -10 2335  TR8CA F4JKT JN17 (x4)
054215 -10 2335  TJ1GD F4JKT JN17 (x7)
043545  -8 1831  F4JKT UB3ZKO KO80
043830  -7 1489  CA6SNT F4JKT JN17 (x3)
80m 
UTC    dB Audio  Message
164630 -10 1455  HB3YTK F4JKT RR73 (x8)
165100  -7 1455  CQ F4JKT JN17
165130  -9 1455  RA6ZS F4JKT -13 (x2)
165330 -10 1455  CQ F4JKT JN17
165400  -9 1455  RC6OU F4JKT -16 (x2)
165815 -19 1455  EX7DY F4JKT JN17
60m 
UTC    dB Audio  Message
054930  -7  869  HF5A F4JKT +00
054945 +13 2759  F4JKT HF5A R-06
055000  -4  869  HF5A F4JKT RR73
055015 +12 2759  F4JKT HF5A 73
055215  -7  869  6W/IK2HKT F4JKT JN17 (x11)
20m 
UTC    dB Audio  Message
143130 +13 1947  RW4HUD F4JKT -03
143230  +6 1947  IQ4JO F4JKT -10 (x6)
143645 +14 1947  RI1FJL F4JKT -06 (x8)

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

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