KC2NJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN20

Receiver-side FT8 activity involving KC2NJ, decoded by SO8OO in southeastern Poland. 339 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-04.

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 339 FT8 messages attributed to KC2NJ as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (74%), followed by 40 m (26%). Most decodes (89%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

339
Messages attributed
13
UTC dates decoded
87
Active 15-min windows
-14 dB
Estimated median S/N

Bands

40m · 87 20m · 252
First attributed message: 2026-06-07
Last attributed message: 2026-09-04 04:55 UTC

Observed FT8 message patterns

Attributed sample
339 messages
Active dates
13 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 135, moderate (-15 to -9 dB) 135, strong (≥ -8 dB) 69.

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 KC2NJ 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 KC2NJ

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
FN20 · 26 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,111 km (approx.)
Last such locator decoded
2026-09-04 02:00 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 UTCBandKC2NJ S/NCounterpartCounterpart S/NMsgsCapture
09-04 05:44 40m - / -15 DB26YLBB +6 / - 2 Partial capture
09-04 04:38 40m - / -5 DF7DC +8 / - 2 ✓ Closing fragment
09-04 04:24 40m - / -15 SP3IOE +10 / - 2 Partial capture
09-04 04:21 40m - / -23 IZ5IIN +4 / - 2 Partial capture
09-04 04:00 40m -14 / - SN100PKP - / -16 4 Partial capture
09-04 03:15 40m - / -12 US1VM +7 / - 5 Partial capture
09-04 03:14 40m -16 / -18 R3WDW -12 / - 3 ✓ Closing observed
09-04 02:36 40m -22 / - W8WMU - / -8 2 ✓ Closing fragment
09-04 02:25 40m -14 / - FY1ZZC - / -24 4 ✓ Closing fragment
09-04 02:19 40m - / - WF2A +4 / - 2 ✓ Closing fragment
09-04 02:15 40m -5 / - KQ4KSY - / - 3 ✓ Closing fragment
09-04 02:13 40m -10 / - KE9FFT - / -11 2 Partial capture
09-04 02:00 40m - / - SV1TRJ -18 / - 3 Partial capture
09-04 01:56 40m - / - HK3PSA -16 / - 2 ✓ Closing fragment
09-04 01:51 40m - / - RX6DA 0 / - 6 Partial capture
09-04 01:44 40m - / - TA3NK -4 / - 2 Partial capture
09-04 01:43 40m - / - RY7F -8 / - 5 Partial capture
09-04 01:41 40m - / 0 KO4VZM -18 / - 2 ✓ Closing fragment
09-04 01:29 40m - / - DL6RS +9 / - 3 Partial capture
09-04 01:28 40m - / -5 ON1DGN -9 / - 4 Partial capture
09-04 01:24 40m -22 / - VO2NS -7 / -10 2 ✓ Closing observed
09-03 05:48 40m - / -9 DF0AWG +8 / - 2 ✓ Closing fragment
09-03 05:22 40m - / -17 ON3PJA -6 / - 3 ✓ Closing fragment
09-03 05:14 40m - / -11 DL1KVN -8 / - 3 ✓ Closing fragment
09-03 04:30 40m - / -15 IK7CNX -1 / - 4 Partial capture
09-03 04:04 40m -14 / - II7MGLE - / -14 2 Partial capture
09-03 03:56 40m -17 / -22 II7MGLE -7 / -14 4 Partial capture
09-03 03:45 40m -19 / -16 II7MGBA +9 / -1 2 Partial capture
09-03 03:41 40m -15 / - EG1PPE - / -9 5 ✓ Closing fragment
09-03 03:39 40m - / -9 US1VM +12 / - 5 Partial capture
09-03 03:28 40m - / -6 LZ936BA -11 / - 2 Partial capture
09-03 03:01 40m - / -11 LZ936BA -6 / - 4 Partial capture
09-03 02:36 40m -8 / - K1SQ - / -4 4 Partial capture
09-03 01:36 40m -20 / - W8WMU - / -16 2 Partial capture
09-03 01:08 40m -9 / - W8EDE - / - 3 Partial capture
09-03 00:32 40m -19 / - KD4MPR - / -1 2 ✓ Closing fragment
09-03 00:15 40m -10 / - KE0EHD - / -16 3 ✓ Closing fragment
08-30 21:53 20m - / -18 DD7XX -11 / - 3 Partial capture
08-30 20:03 20m - / -15 ON5JDA -10 / - 6 Partial capture
08-30 19:34 20m - / - F5JQF +2 / - 9 Partial capture
08-30 19:01 20m - / -18 IK4YWL +6 / - 2 ✓ Closing fragment
08-27 05:45 40m - / -18 F4NHL -17 / - 2 Partial capture
08-27 05:31 40m - / -18 IU3WNU 0 / - 3 Partial capture
08-27 05:29 40m - / -9 PD0WF -8 / - 2 ✓ Closing fragment
08-27 05:26 40m - / -8 PD9DX +4 / - 2 ✓ Closing fragment
08-27 05:02 40m - / -18 SP2ZST -10 / - 2 ✓ Closing fragment
08-27 03:36 40m -16 / -2 IR7MGGC -12 / -15 6 Partial capture
08-27 03:26 40m -16 / - N4RLS - / +10 3 ✓ Closing fragment
08-27 03:21 40m -16 / -7 AO5FSB -22 / -16 3 ✓ Full exchange observed
08-24 16:46 20m - / +1 DA1EA 0 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
040045 -16  640  SN100PKP KC2NJ -16 (x4)
041830 -14 2114  K7MC KC2NJ -02
042130  +4  681  KC2NJ IZ5IIN R-23 (x2)
042415 +11  950  KC2NJ SP3IOE R-15 (x2)
043815 +10  875  KC2NJ DF7DC R-05 (x2)
045500 -16  871  TI5RR KC2NJ RR73
054430  +7 2483  KC2NJ DB26YLBB R-15 (x3)
20m 
UTC    dB Audio  Message
193600  +2 3092  KC2NJ F5JQF JN26 (x6)
200315  -9 1418  KC2NJ ON5JDA R-15 (x6)
215330 -11 1872  KC2NJ DD7XX R-18 (x3)

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.

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