KB9AX — 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: EM69

Receiver-side FT8 activity involving KB9AX, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-10-01.

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 116 FT8 messages attributed to KB9AX as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 80 m (25%) and 20 m (3%). 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 -10 dB.

Overview

116
Messages attributed
8
UTC dates decoded
13
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 29 40m · 83 20m · 4
First attributed message: 2026-06-19
Last attributed message: 2026-10-01 23:38 UTC

Observed FT8 message patterns

Attributed sample
116 messages
Active dates
8 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-22 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 46.

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 KB9AX 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 KB9AX

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
EM69 · 30 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,886 km (approx.)
Last such locator decoded
2026-10-01 23:36 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 UTCBandKB9AX S/NCounterpartCounterpart S/NMsgsCapture
10-01 23:36 40m -6 / - HA1SU - / -9 2 ✓ Closing fragment
10-01 23:36 40m -5 / - IU8RFW -9 / -9 4 Partial capture
10-01 23:36 40m - / - RZ4FWA -15 / - 3 Partial capture
10-01 23:34 40m -10 / 0 IZ5IMD -2 / +8 6 ✓ Full exchange observed
10-01 23:34 40m -8 / - K1JAK - / +5 2 ✓ Closing fragment
10-01 23:33 40m - / - UA9SHH -18 / - 2 Partial capture
09-19 23:47 40m -3 / - EA5HM -11 / -8 19 Partial capture
09-19 23:47 40m - / -4 F5NBU +3 / - 3 ✓ Closing fragment
09-19 23:47 40m - / -13 M9KCA -15 / - 2 Partial capture
09-19 23:45 40m - / -15 R2BQM +2 / - 4 Partial capture
09-19 23:44 40m -4 / - KA0OSN - / -9 2 ✓ Closing fragment
09-19 23:42 40m -2 / - HZ1TT - / -16 2 Partial capture
09-19 23:41 40m -6 / -1 EX7CQ -1 / - 3 ✓ Closing observed
09-16 00:21 40m -10 / - 9A3AUH - / -16 3 ✓ Closing fragment
09-16 00:20 40m - / - PA1PXL -1 / - 2 Partial capture
09-16 00:18 40m -10 / - WB8NXR - / -11 2 ✓ Closing fragment
09-16 00:17 40m - / +5 GM7JQK -11 / - 9 Partial capture
09-16 00:17 40m -9 / - WA4NFO - / -11 2 ✓ Closing fragment
09-16 00:15 40m -9 / - YO3GNF - / -13 2 ✓ Closing fragment
09-16 00:13 40m - / - EA2EDI -21 / - 2 Partial capture
09-16 00:12 40m -9 / - HA3MK - / -14 5 ✓ Closing fragment
09-16 00:11 40m -8 / - DL9KM - / -11 2 ✓ Closing fragment
09-16 00:10 40m -9 / - XE1IHD - / -11 2 ✓ Closing fragment
09-16 00:09 40m -9 / - KJ5PDD - / -6 2 ✓ Closing fragment
09-16 00:08 40m -8 / - 9A4ZM - / -15 2 ✓ Closing fragment
09-16 00:07 40m -10 / - AC8JT - / -8 2 ✓ Closing fragment
09-16 00:07 40m - / - M0WTN -18 / - 4 Partial capture
09-16 00:06 40m -8 / - KR4LQH - / -7 2 ✓ Closing fragment
09-16 00:03 40m -10 / - DL2AX - / -15 2 ✓ Closing fragment
09-16 00:02 40m -10 / - WB8ZFL - / -10 2 ✓ Closing fragment
09-16 00:02 40m - / -21 UN9LDA -15 / - 9 Partial capture
09-16 00:01 40m -10 / - YO4NF - / -12 2 ✓ Closing fragment
09-16 00:01 40m -10 / -8 EI3CTB +3 / -15 11 ✓ Full exchange observed
09-16 00:00 40m -9 / - KK5JY - / 0 2 ✓ Closing fragment
09-16 00:00 40m - / - M0WTN -12 / - 3 Partial capture
09-15 23:57 40m -7 / - TJ1GD - / - 6 Partial capture
09-15 23:55 40m -9 / +5 SV9QWC -12 / -14 4 ✓ Full exchange observed
09-14 23:54 80m -14 / -13 EC3A -23 / - 3 ✓ Closing observed
09-14 23:46 80m - / - OE3OOG -10 / - 3 Partial capture
09-14 23:45 80m -22 / - LW1DJ - / -10 2 ✓ Closing fragment
09-14 23:44 80m - / - F6BHK -24 / - 2 Partial capture
09-14 23:39 80m - / - F5NNN -18 / - 4 Partial capture
09-14 23:37 80m - / -13 SQ9DJQ -10 / - 2 Partial capture
09-14 23:36 80m - / -5 EA8AJ -24 / - 3 Partial capture
09-14 23:32 80m - / -13 EA2DYB -17 / - 3 Partial capture
09-14 23:31 80m - / - PA3KUS -10 / - 10 Partial capture
09-14 23:24 80m - / -19 F4FPR -22 / - 5 ✓ Closing fragment
09-14 23:23 80m - / -13 F1PBZ -10 / - 2 ✓ Closing fragment
09-12 00:15 40m - / -12 CT7AUT -11 / - 3 Partial capture
09-12 00:14 80m - / - IS0BQE -10 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
233515 -12 1898  IZ5IMD KB9AX +08
233530 -15 2399  KB9AX RA4FUT LO23
233530  -5 2308  KB9AX IZ5IMD R+00
233545  -7 2398  IZ5IMD KB9AX RR73
233600  -2 2308  KB9AX IZ5IMD 73
233615  -5 2398  CQ KB9AX EM69
233630 -17 2028  KB9AX RZ4FWA LO23
233630 -10  939  KB9AX IU8RFW JN70
233645  -5 2398  HA1SU KB9AX R-09
233700 -16 2028  KB9AX RZ4FWA LO23
233700 -10  939  KB9AX IU8RFW JN70
233715  -8 2397  HA1SU KB9AX 73
233730 -12 2028  KB9AX RZ4FWA LO23
233730  -7  939  KB9AX IU8RFW JN70
233845  -5 2398  IU8RFW KB9AX -09
160m 
UTC    dB Audio  Message
002030 -24 1996  KB9AX V26OC FK97
80m 
UTC    dB Audio  Message
234500 -24 1558  KB9AX F6BHK JN24
234515 -22 1558  LW1DJ KB9AX -10 (x2)
234600 -13 1008  KB9AX OE3OOG JN87
234615 -22 1557  CQ KB9AX EM69                         a1
234630  -6 1008  KB9AX OE3OOG JN87
234645 -19 1557  CQ KB9AX EM69
234700 -12 1008  KB9AX OE3OOG JN87
234915 -22 1558  CQ KB9AX EM69
235030 -24 1397  KB9AX CT7AUT IM67
235400 -22 1663  KB9AX EC3A -13 (x2)
235445 -14 1557  EC3A KB9AX 73
235645 -14 1557  CQ KB9AX EM69
235730 -24 1557  KB9AX F6BHK JN24

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