K2ZJ — 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: United States Most frequent locator attributed to this token: FN13

Receiver-side FT8 activity involving K2ZJ, decoded by SO8OO in southeastern Poland. 965 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 70 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.

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 965 FT8 messages attributed to K2ZJ as the transmitting token by decoded message structure across 70 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (76%), followed by 20 m (15%) and 80 m (8%). Most decodes (80%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -5.1 dB.

Overview

965
Messages attributed
70
UTC dates decoded
198
Active 15-min windows
-5.1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-06 00:50 UTC

Observed FT8 message patterns

Attributed sample
965 messages
Active dates
70 UTC dates
Estimated median S/N
-5.1 dB
Estimated 10th-90th percentile
-17 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 142, moderate (-15 to -9 dB) 197, strong (≥ -8 dB) 626.

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 K2ZJ

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
FN13 · 450 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,995 km (approx.)
Last such locator decoded
2026-11-06 00:49 UTC

Other locator fields attributed to this token: FN23 (1).

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 UTCBandK2ZJ S/NCounterpartCounterpart S/NMsgsCapture
11-06 00:49 40m -6 / - A92AE - / -23 4 ✓ Closing fragment
11-06 00:39 40m -4 / -6 4L1FL +5 / -13 6 ✓ Full exchange observed
11-06 00:30 40m -6 / - 7Q6M - / -19 3 ✓ Closing fragment
11-05 22:30 40m - / - OE9GWV -12 / - 4 Partial capture
11-05 22:29 40m -11 / +1 HA3HZ +1 / -14 5 ✓ Full exchange observed
11-05 22:25 40m -14 / - YB1LIN - / - 2 Partial capture
11-05 21:45 40m -11 / -3 IN3THU +3 / -13 5 ✓ Full exchange observed
11-05 21:44 40m -10 / +1 M7LYG -6 / -10 3 Partial capture
11-04 21:41 40m - / - IK1LJO -17 / - 4 ✓ Closing fragment
11-04 21:32 40m - / +2 CT1BWU -8 / - 3 ✓ Closing fragment
11-03 22:32 40m -8 / - IT9ODQ - / -16 4 ✓ Closing fragment
11-03 22:30 40m -11 / - JR3OEH - / - 2 Partial capture
11-03 00:30 40m - / - SV5BYP -14 / - 2 ✓ Closing fragment
11-01 07:05 40m - / - YL3VN -6 / - 2 Partial capture
11-01 07:04 40m - / -6 EA5RO -12 / - 2 ✓ Closing fragment
11-01 07:01 40m - / -8 DK5UR -5 / - 3 ✓ Closing fragment
11-01 06:56 40m - / -7 DK5UR -1 / - 2 ✓ Closing fragment
11-01 06:35 40m - / +3 DL6NDN +1 / - 3 ✓ Closing fragment
10-31 21:38 40m -8 / - DU1RAA - / - 2 Partial capture
10-31 21:28 40m - / +8 CT3IQ -11 / - 3 ✓ Closing fragment
10-31 06:23 40m - / +2 IW2LUY -8 / - 3 ✓ Closing fragment
10-31 04:13 40m -6 / - US1VAA - / -16 2 ✓ Closing fragment
10-31 04:05 40m -7 / - SU1AS - / - 14 Partial capture
10-31 03:50 40m -9 / - SU1AS - / - 4 Partial capture
10-31 00:10 80m -6 / +6 DC7LR -6 / -20 6 ✓ Full exchange observed
10-30 22:58 40m - / - EA1QC -10 / - 2 Partial capture
10-30 22:03 40m - / - IK1LJO -17 / - 5 ✓ Closing fragment
10-30 21:51 40m -10 / - JH0INP - / - 2 Partial capture
10-30 21:49 40m -10 / +1 I5HLK -6 / -14 4 ✓ Full exchange observed
10-30 21:49 40m - / - IK1LJO -15 / - 8 Partial capture
10-30 21:47 40m -8 / -3 GJ0KYZ +4 / -8 5 ✓ Full exchange observed
10-30 21:31 40m -13 / - JA7TZP - / -24 3 ✓ Closing fragment
10-30 21:21 40m -16 / - JA1LZU - / - 2 Partial capture
10-30 21:13 40m -14 / - JA1LZU - / - 4 Partial capture
10-30 20:53 40m -13 / -9 G0OYR -3 / -13 4 ✓ Full exchange observed
10-30 20:52 40m -12 / - JH0HZO - / - 2 Partial capture
10-30 20:45 40m - / +6 F4IXB -5 / - 2 Partial capture
10-30 19:40 40m - / -11 DC7LR -4 / - 2 ✓ Closing fragment
10-26 01:01 40m -7 / - CO6QK - / -13 3 ✓ Closing fragment
10-25 06:13 40m - / - SV1KWA -6 / - 2 Partial capture
10-25 06:12 40m - / +1 DL1FAM -5 / - 3 ✓ Closing fragment
10-25 06:12 40m - / -12 F4MOJ/P -8 / - 3 Partial capture
10-25 05:31 40m - / - DK9RC -6 / - 2 Partial capture
10-24 21:44 40m - / - EA7L -14 / - 3 Partial capture
10-20 17:39 40m - / - IU1WMA -8 / - 5 Partial capture
10-20 08:26 40m - / -13 PA3GHJ -23 / - 2 ✓ Closing fragment
10-19 21:36 40m -8 / 0 M0OVG -14 / - 4 ✓ Closing observed
10-19 14:44 10m - / 0 CN8WK -4 / - 2 ✓ Closing fragment
10-19 00:41 40m -9 / - R2EA/P - / +3 3 Partial capture
10-19 00:00 40m -8 / - YO8RSL - / -18 6 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
223230 -10 1998  K2ZJ OE9GWV JN47
003015  -9  378  7Q6M K2ZJ FN13 (x3)
003130 -17 1312  K2ZJ IU8RFW JN70
003900  -3  377  4L1FL K2ZJ FN13
003915  +2  378  K2ZJ 4L1FL -06
003930  -7  377  4L1FL K2ZJ R-13
003945  +6  378  K2ZJ 4L1FL RR73
004000  -3  377  4L1FL K2ZJ 73
004015  +8  378  K2ZJ 4L1FL 73
004915  -5  377  A92AE K2ZJ FN13 (x4)
80m
UTC    dB Audio  Message
013600  +7  422  K2ZJ UA6BEW R-15
013615  +1  421  UA6BEW K2ZJ RR73 (x2)
013700  +9  421  K2ZJ UA6BEW R-15 (x2)
013745  +2  421  UA6BEW K2ZJ RR73
013800 +10  421  K2ZJ UA6BEW R-15
013815  +0  420  UA6BEW K2ZJ RR73
001030  -8  307  DC7LR K2ZJ FN13 (x2)
001115  -8 2754  K2ZJ DC7LR +06
001130  -3  307  DC7LR K2ZJ R-20
001145  -5 2754  K2ZJ DC7LR RR73
001200  -5  307  DC7LR K2ZJ 73
001400  -4  307  OD5ZZ K2ZJ FN13
10m
UTC    dB Audio  Message
131245  -5  295  K2ZJ DN9SH R+03 (x3)
132145 -19 2268  K2ZJ PE0TS R+04 (x2)
132745  -8 2629  K2ZJ DN9MSG JO43
132945 -17 1192  K2ZJ PD7LB JO33 (x2)
135615 -16  238  A41DV K2ZJ FN13
140015 -16  238  DO7EMS K2ZJ -15
144330 -20 1972  K2ZJ PT7YB HI06
160500  -7  247  K2ZJ EA7CU -18 (x2)
144430  -4 2332  K2ZJ CN8WK +00 (x2)
160m
UTC    dB Audio  Message
000315  +9 2655  K2ZJ DL1RWN -19 (x2)
20m
UTC    dB Audio  Message
152245  +0  278  K2ZJ OH8KTX R-11 (x3)
155600 -16 1613  K2ZJ LB4BK JO39
155930 -11  286  K2ZJ F1IQH JN27 (x3)
162730  +8  692  K2ZJ M0XCZ IO90 (x3)
165000 -18  233  KC0FSH K2ZJ RR73
165200 -14  233  KM6UTC K2ZJ -10
165215 -17 1377  K2ZJ EA4T -04
165300 -15  233  KM6UTC K2ZJ RR73
171400 -17  233  K7PDW K2ZJ -11

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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