F4KNJ — 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: JN18

Receiver-side FT8 activity involving F4KNJ, decoded by SO8OO in southeastern Poland. 182 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-10-17.

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 182 FT8 messages attributed to F4KNJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). 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 -8 dB.

Overview

182
Messages attributed
3
UTC dates decoded
13
Active 15-min windows
-8 dB
Estimated median S/N

Bands

40m · 182
First attributed message: 2026-07-11
Last attributed message: 2026-10-17 20:14 UTC

Observed FT8 message patterns

Attributed sample
182 messages
Active dates
3 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-12 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 73, strong (≥ -8 dB) 105.

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 F4KNJ in decoded directed-looking exchanges:

Most frequent locator attributed to F4KNJ

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
JN18 · 144 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,370 km (approx.)
Last such locator decoded
2026-10-17 20:13 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 UTCBandF4KNJ S/NCounterpartCounterpart S/NMsgsCapture
10-17 20:47 40m - / -4 CT7AXN +2 / - 3 ✓ Closing fragment
10-17 20:13 40m -6 / - UT2SQ - / -11 2 ✓ Closing fragment
10-17 20:06 40m +1 / -8 RX9WM -5 / -10 8 ✓ Full exchange observed
10-17 19:59 40m -8 / -8 CR6AEP -10 / 0 4 ✓ Full exchange observed
10-17 19:57 40m - / - PA3ADE -8 / - 5 Partial capture
10-17 19:43 40m - / - M9RDX -12 / - 5 Partial capture
10-17 19:36 40m -4 / - G0HZG - / +7 2 ✓ Closing fragment
10-17 19:31 40m - / - DL1HKL -2 / - 5 Partial capture
10-17 19:26 40m -9 / - SP9DHY - / -16 2 ✓ Closing fragment
10-17 19:20 40m -8 / - HB9ZHK - / -9 2 ✓ Closing fragment
10-17 19:17 40m -8 / -9 IU3GOR +5 / -8 5 ✓ Full exchange observed
10-17 19:16 40m - / - HB9ZHK -17 / - 2 Partial capture
10-17 19:04 40m - / +1 F1TXI -7 / - 4 Partial capture
10-17 19:04 40m -4 / - DL2KAC - / -17 2 ✓ Closing fragment
10-17 19:01 40m - / - IK5EEA -3 / - 3 ✓ Closing fragment
10-17 18:53 40m - / -17 YO4NT +7 / - 2 Partial capture
10-17 18:49 40m - / - R3YAF +6 / - 2 Partial capture
10-17 18:45 40m -3 / - PD0TVO - / -12 2 ✓ Closing fragment
10-17 18:39 40m -8 / -13 R2PX -6 / - 4 ✓ Closing observed
10-17 18:36 40m - / - G4CFS -3 / - 23 Partial capture
10-17 18:33 40m -6 / - LY2BSW -4 / -15 2 Partial capture
10-17 18:27 40m -5 / - PA2KV -5 / - 2 ✓ Closing observed
10-17 18:24 40m - / -7 EU1AFX -11 / - 5 Partial capture
10-17 18:21 40m - / -6 9A2B 0 / - 2 ✓ Closing fragment
10-17 18:19 40m -10 / +1 GJ0KYZ -1 / +1 3 ✓ Full exchange observed
10-17 18:19 40m - / - G4CFS -2 / - 6 Partial capture
10-17 18:16 40m -13 / - G0AMO -7 / +9 3 ✓ Closing observed
10-17 18:11 40m - / +1 SP1MGM +3 / - 3 ✓ Closing fragment
10-17 18:09 40m - / -4 F1POK -6 / - 2 ✓ Closing fragment
10-17 18:05 40m - / - DL1PJO -8 / - 6 Partial capture
10-17 18:05 40m -13 / -15 R2ASY -12 / -15 6 Partial capture
10-17 18:02 40m -8 / - HA0LQ - / -9 2 ✓ Closing fragment
10-17 17:59 40m -12 / -1 PA7D -10 / +9 5 ✓ Full exchange observed
10-17 17:57 40m -12 / - F4BJN -9 / -10 3 ✓ Closing observed
10-17 17:55 40m -10 / +8 G4TCI -7 / +6 5 ✓ Full exchange observed
10-17 17:52 40m - / -18 R3DHP -4 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
200945  +0  709  CQ F4KNJ JN18 (x8)
201345  -6  710  UT2SQ F4KNJ -11 (x2)
203430 -17 1534  F4KNJ G0ACQ IO80
204000 -15 1455  F4KNJ PA1AA JO21
204730  +1  988  F4KNJ CT7AXN IM59 (x3)

CW

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

Explore CW reception at SO8OO

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