OD5KU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Lebanon Most frequent locator attributed to this token: KM73

Receiver-side FT8 activity involving OD5KU, decoded by SO8OO in southeastern Poland. 7,242 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 87 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 7,242 FT8 messages attributed to OD5KU as the transmitting token by decoded message structure across 87 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (4%) and 10 m (2%). Most decodes (82%) fell within the six-hour window 01:00-07:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +1 dB.

Overview

7,242
Messages attributed
87
UTC dates decoded
844
Active 15-min windows
+1 dB
Estimated median S/N

Bands

80m · 11 40m · 307 20m · 6,797 10m · 127
First attributed message: 2026-06-07
Last attributed message: 2026-09-21 03:32 UTC

Observed FT8 message patterns

Attributed sample
7,242 messages
Active dates
87 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-11 to +14.4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 101, moderate (-15 to -9 dB) 1,026, strong (≥ -8 dB) 6,115.

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 OD5KU 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 OD5KU

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
KM73 · 4,873 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,124 km (approx.)
Last such locator decoded
2026-09-21 03:10 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 UTCBandOD5KU S/NCounterpartCounterpart S/NMsgsCapture
09-21 03:32 40m -10 / - OK2MFD - / -12 2 ✓ Closing fragment
09-21 03:27 40m -4 / - II9IAGM - / -21 2 Partial capture
09-21 03:10 40m -5 / - SP5MIG - / -16 3 ✓ Closing fragment
09-21 02:31 40m -8 / - A61OK - / - 11 Partial capture
09-21 02:26 40m -16 / - SQ9SET - / - 2 ✓ Closing fragment
09-21 02:16 40m -2 / -6 G1CEC -9 / -19 8 ✓ Full exchange observed
09-21 02:15 40m -9 / - II9IAGM - / -15 3 Partial capture
09-19 04:22 40m -16 / -1 LZ936BA +3 / +2 3 Partial capture
09-19 04:20 40m -18 / -13 CT2HEX -17 / -17 3 Partial capture
09-19 04:01 40m - / - CT2HEX -9 / - 3 Partial capture
09-19 03:59 40m -11 / - OT7K - / -3 4 ✓ Closing fragment
09-19 03:32 40m -13 / - 9H4JX - / -14 3 ✓ Closing fragment
09-19 03:31 40m -15 / - 9A1KO - / - 3 Partial capture
09-19 01:19 40m -3 / - ON8FAB - / - 12 Partial capture
09-19 01:02 40m -7 / - RZ9A - / - 11 Partial capture
09-19 00:51 40m -1 / - PD0NYL - / -20 2 ✓ Closing fragment
09-19 00:47 40m -8 / -11 W1WCI -11 / -15 7 ✓ Full exchange observed
09-19 00:47 40m -6 / - VU2SW - / - 3 Partial capture
09-19 00:45 40m -3 / -3 F6IRA +2 / -6 5 ✓ Full exchange observed
09-19 00:41 40m -10 / - R9HEP/P - / -16 2 Partial capture
09-19 00:38 40m -7 / - PD4RJ - / -22 3 ✓ Closing fragment
09-19 00:36 40m -6 / - DJ2KP - / -4 2 ✓ Closing fragment
09-19 00:29 40m +2 / - F4EGM - / -16 3 Partial capture
09-19 00:20 40m -4 / - R9HEP/P - / - 5 Partial capture
09-19 00:13 40m -6 / - HI8ML - / - 11 Partial capture
09-19 00:06 40m -14 / - PA1AA - / -11 4 Partial capture
09-19 00:04 40m -8 / -15 PD2ET -21 / -21 3 Partial capture
09-19 00:02 40m -8 / - R9HEP/P - / - 2 Partial capture
09-19 00:01 40m - / -16 PD2ET -19 / - 2 Partial capture
09-18 23:55 40m 0 / -4 UG4L -13 / -9 5 ✓ Full exchange observed
09-18 23:51 40m -2 / - SM7TZK - / -16 4 ✓ Closing fragment
09-18 23:49 40m -7 / - R3RRC/P - / -24 4 Partial capture
09-18 23:46 40m -10 / - DL3MIB - / - 2 Partial capture
09-18 23:44 40m -9 / +5 R3RRC/P -9 / -10 5 ✓ Full exchange observed
09-18 23:29 80m - / - UA3ATQ -24 / - 4 Partial capture
09-18 23:25 80m -10 / - II7IABB - / - 4 Partial capture
09-18 23:23 80m - / -20 RY3F -11 / - 3 Partial capture
09-18 23:21 80m -14 / - UB8CQC/P - / -15 2 Partial capture
09-18 23:21 80m - / - UA3ATQ -10 / - 3 Partial capture
09-18 23:20 80m -14 / -22 EW2ZC +3 / - 6 Partial capture
09-18 23:20 80m - / - F5UTN -4 / - 2 Partial capture
09-18 23:19 80m - / - G0ORC -7 / - 5 Partial capture
09-18 23:18 80m -13 / -15 SP6JIU +24 / -16 5 ✓ Full exchange observed
09-11 04:36 40m +2 / - DL3MIB - / - 5 Partial capture
09-11 04:21 40m +8 / -8 PA3EVY -14 / - 4 Partial capture
09-11 03:58 40m +6 / - F4HQL - / - 3 Partial capture
09-11 03:55 40m +9 / - R6AO - / -18 5 ✓ Closing fragment
09-11 03:21 40m +5 / - RY4D - / -21 3 ✓ Closing fragment
09-11 03:03 40m -1 / - UW5ESX - / +2 2 ✓ Closing fragment
09-11 02:57 40m +11 / - N4HFE - / -15 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
023300  -7 2363  A61OK OD5KU KM73 (x7)
031030  -4 2363  SP5MIG OD5KU KM73 (x3)
031500 -12 2364  DL9KM OD5KU -13
032745  -6 2364  II9IAGM OD5KU R-21 (x2)
033215  -9 2364  OK2MFD OD5KU -12 (x2)
80m 
UTC    dB Audio  Message
232300 -11 2293  OD5KU RY3F -20
232300  +2 2377  OD5KU EW2ZC -22
232330 -17 2293  OD5KU RY3F -20
232330  -5 2377  OD5KU EW2ZC -22
232400  -6 2293  OD5KU RY3F -20
232400  +9 2377  OD5KU EW2ZC -22 (x2)
232515 -13 2293  II7IABB OD5KU KM73 (x4)
232930 -24 1611  OD5KU UA3ATQ KO85 (x4)
20m 
UTC    dB Audio  Message
175115 +11 2670  F5SFT OD5KU KM73 (x4)
175300  +9 1388  OD5KU I0WBX JN62
175315 +12 2671  F5SFT OD5KU KM73
175330  +5 1388  OD5KU I0WBX JN62
175345 +15 2670  F5SFT OD5KU KM73
175400  +9 1388  OD5KU I0WBX JN62
175400 -14 1074  OD5KU 5B4AHO KM64
175415  +9 2671  F5SFT OD5KU KM73
175430 +11 1388  OD5KU I0WBX JN62
175430 -13 1074  OD5KU 5B4AHO KM64
175445 +15 2671  F5SFT OD5KU KM73
175530  -9 1073  OD5KU 5B4AHO KM64
10m 
UTC    dB Audio  Message
145200 -21 2256  G1NZO OD5KU KM73
150115 -20 2256  GW0KZG OD5KU R-04 (x2)
154730  -9 2255  OD5KU GJ0KYZ -12 (x4)
161645 -14 2484  UX1AA OD5KU KM73 (x2)
150900 -10 2490  OD5KU DH7ZP JO40
132200 -24 1594  OD5KU EA8AID IL27
143630 -12 2579  <...> OD5KU KM73
150730 -22 2109  CT1BQN OD5KU KM73 (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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