AB4KK — 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: EM90

Receiver-side FT8 activity involving AB4KK, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-08-24.

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 42 FT8 messages attributed to AB4KK as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

42
Messages attributed
4
UTC dates decoded
11
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-08-20
Last attributed message: 2026-08-24 02:16 UTC

Observed FT8 message patterns

Attributed sample
42 messages
Active dates
4 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-18 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 1.

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 AB4KK

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
EM90 · 16 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,294 km (approx.)
Last such locator decoded
2026-08-23 01:34 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 UTCBandAB4KK S/NCounterpartCounterpart S/NMsgsCapture
10-20 00:48 60m - / - K1OF -20 / - 2 ✓ Closing fragment
10-16 02:18 60m - / -22 F4BPO +8 / - 6 ✓ Closing fragment
10-06 03:15 60m - / -18 IK1WGX -12 / - 2 ✓ Closing fragment
10-06 03:09 60m - / -15 IT9VCE -12 / - 2 ✓ Closing fragment
10-06 03:06 60m - / -18 F5RRS -3 / - 2 ✓ Closing fragment
09-19 02:43 60m - / -19 F5RMK -6 / - 4 ✓ Closing fragment
09-19 02:27 60m - / -11 AC2PB -16 / - 2 ✓ Closing fragment
09-09 23:48 60m - / -20 F5RMK -12 / - 6 ✓ Closing fragment
09-09 23:46 60m - / -15 PA4PA +4 / - 3 ✓ Closing fragment
09-08 03:27 60m - / -15 IZ8VYU +15 / - 2 ✓ Closing fragment
09-08 03:24 60m - / -16 F4FHM/QRP -8 / - 2 Partial capture
09-08 03:02 60m - / -20 5B4VL +12 / - 2 ✓ Closing fragment
09-08 02:38 60m - / -15 DJ3AA +4 / - 2 ✓ Closing fragment
09-08 02:25 60m - / -9 F5MYK -12 / - 2 ✓ Closing fragment
09-06 23:12 40m - / -18 CR7BRV -4 / - 3 ✓ Closing fragment
09-06 22:22 40m - / -20 K1SM -14 / - 3 ✓ Closing fragment
09-06 01:46 40m - / - F1IQH -5 / - 3 Partial capture
09-06 00:41 40m - / 0 EC5M -11 / - 2 ✓ Closing fragment
09-06 00:09 60m - / -22 PA4PA +12 / - 2 ✓ Closing fragment
09-03 02:08 60m - / -26 LA9GX +11 / - 10 Partial capture
09-03 00:46 60m - / -20 DL1OBF +10 / - 2 ✓ Closing fragment
08-30 01:42 60m - / +2 PE1MHY -2 / - 5 Partial capture
08-30 01:30 60m - / -10 F5MYK -6 / - 2 ✓ Closing fragment
08-30 01:17 60m - / -15 PI4DX +7 / - 2 ✓ Closing fragment
08-24 02:18 40m - / - IK4LZH -3 / - 3 Partial capture
08-24 02:16 40m - / +9 K4DV -6 / - 2 Partial capture
08-24 02:12 40m - / -22 IW2MYH -2 / - 6 Partial capture
08-24 02:11 40m - / - EB1LA -5 / - 3 Partial capture
08-24 02:11 40m - / - F1IQH -4 / - 4 Partial capture
08-24 02:10 40m - / - R6FY +7 / - 3 Partial capture
08-23 01:34 20m -17 / -14 SV5BYP -11 / - 7 Partial capture
08-23 01:15 20m - / - ON3CCM -11 / - 2 Partial capture
08-23 00:55 20m -16 / - KI6Q - / -12 2 Partial capture
08-23 00:52 20m -18 / -12 G8KHF -10 / -11 2 Partial capture
08-23 00:46 20m -12 / - 8Z1IT - / - 2 Partial capture
08-23 00:38 20m -18 / - G1CEC - / -11 6 Partial capture
08-23 00:06 20m -11 / -15 DB3EH -6 / - 5 ✓ Closing observed
08-22 23:58 20m - / - DB3EH -9 / - 2 Partial capture
08-22 23:49 20m - / +2 IK4LZH +3 / - 6 ✓ Closing fragment
08-22 23:47 20m - / -2 F4VTR +1 / - 7 ✓ Closing fragment
08-22 23:45 20m -11 / -12 F4MXU -9 / -17 2 Partial capture
08-22 23:42 20m -13 / - DL1VCA 0 / -17 7 Partial capture
08-22 23:41 20m -9 / - UA6CE -2 / -6 3 ✓ Closing observed
08-22 23:36 20m - / -19 F4BYA +6 / - 4 ✓ Closing fragment
08-22 22:45 20m - / - IK4LZH -6 / - 2 Partial capture
08-22 22:38 20m - / - DL7RAY -3 / - 5 Partial capture
08-22 22:33 20m - / -8 DL8SBD -2 / - 2 ✓ Closing fragment
08-22 22:27 20m - / - US7UR +2 / - 2 Partial capture
08-22 22:21 20m - / - F1IQH -11 / - 2 Partial capture
08-22 22:19 20m - / -7 PD0U -8 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
030715  -3 1913  AB4KK F5RRS RR73
030945  -8 1270  AB4KK IT9VCE -15 (x2)
031045 +13 2697  AB4KK F4EZJ JN05
031545 -10 1534  AB4KK IK1WGX -18 (x2)
021845  +4 1107  AB4KK F4BPO JN36 (x6)
004345 -21 1773  AB4KK ON1JP RR73
004845 -21 1968  AB4KK K1OF FN31 (x2)
80m
UTC    dB Audio  Message
022345 -18  804  AB4KK W3DQS -19
40m
UTC    dB Audio  Message
021845  -8 2090  AB4KK RU6FS -12
021845  -2  439  AB4KK IK4LZH JN54 (x3)
004115 -11  563  AB4KK EC5M +00 (x2)
014645  -1  540  AB4KK F1IQH JN27 (x3)
222200 -13 2255  AB4KK K1SM -20 (x3)
231245  -4  667  AB4KK CR7BRV -18 (x3)
20m
UTC    dB Audio  Message
005515 -17  754  KI6Q AB4KK -12 (x2)
005715 -15  754  UN0GY AB4KK EM90
010015 -17  754  CQ AB4KK EM90                         a1
010115 -14  753  G4RYE AB4KK -05
010900 -12  754  CQ AB4KK EM90
011515 -15 1117  AB4KK ON3CCM JO10 (x2)
013400 -13 1696  AB4KK SV5BYP -14
013415 -17  753  SV5BYP AB4KK EM90
013430 -10 1696  AB4KK SV5BYP -14 (x5)

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