OE3UKW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Austria Most frequent locator attributed to this token: JN88

Receiver-side FT8 activity involving OE3UKW, decoded by SO8OO in southeastern Poland. 1,856 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-07.

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 1,856 FT8 messages attributed to OE3UKW as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 20 m (32%) and 60 m (14%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +7.3 dB.

Overview

1,856
Messages attributed
27
UTC dates decoded
153
Active 15-min windows
+7.3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-07 21:10 UTC

Observed FT8 message patterns

Attributed sample
1,856 messages
Active dates
27 UTC dates
Estimated median S/N
+7.3 dB
Estimated 10th-90th percentile
-8 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 137, strong (≥ -8 dB) 1,675.

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 OE3UKW

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
JN88 · 338 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
383 km (approx.)
Last such locator decoded
2026-10-07 21:07 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 UTCBandOE3UKW S/NCounterpartCounterpart S/NMsgsCapture
10-07 21:09 80m +3 / - F6FHZ - / -15 3 ✓ Closing fragment
10-07 21:07 160m +16 / +10 OM3SX +13 / -6 5 ✓ Full exchange observed
10-07 21:07 80m +1 / -5 HB9IAW -8 / -3 6 ✓ Full exchange observed
10-07 21:05 160m +15 / -13 OH5KNL -2 / -3 4 ✓ Full exchange observed
10-07 21:02 80m -5 / 0 M0KHR -11 / -7 4 ✓ Full exchange observed
10-07 20:54 80m - / -2 DO5PY +1 / - 3 ✓ Closing fragment
09-23 21:55 160m +8 / - SM6LRY - / -12 9 Partial capture
09-23 21:51 160m +11 / -15 R7CD -9 / +4 7 ✓ Full exchange observed
09-23 21:46 160m +15 / - HB9HFN - / +8 6 Partial capture
09-23 19:00 40m - / -2 IC8TEM -2 / - 2 ✓ Closing fragment
09-23 18:52 40m - / +6 EU6UE -12 / - 4 Partial capture
09-23 18:49 40m - / -4 RD3FY +1 / - 4 ✓ Closing fragment
09-23 18:48 40m - / +10 OH6DHM -4 / - 2 Partial capture
09-23 17:55 40m -2 / -5 TA2VTS -10 / -20 3 Partial capture
09-23 17:54 40m -7 / -6 PF7DKW -9 / -3 5 ✓ Full exchange observed
09-23 17:52 40m -6 / - YO3FVR/P - / -13 3 ✓ Closing fragment
09-23 17:49 40m -12 / - SP5MXW/P - / -7 2 Partial capture
09-23 17:46 40m -3 / - UX7QV - / -2 2 Partial capture
09-23 17:44 40m -10 / -3 SV1QN -8 / -13 5 ✓ Full exchange observed
09-23 17:33 40m -13 / - SP5MXW/P -4 / - 3 ✓ Closing observed
09-23 17:31 40m -2 / - 9A5X - / -8 3 Partial capture
09-23 17:25 40m +9 / +1 F4BNZ -14 / -19 17 Partial capture
09-23 17:23 40m +9 / - ON6LEO - / -2 3 Partial capture
09-23 17:21 40m +16 / +1 IV3IEA +3 / +1 6 ✓ Full exchange observed
09-23 17:16 40m +12 / - PD8MD - / -16 9 ✓ Closing fragment
09-23 17:15 40m +9 / +8 OK2CLW -4 / -8 4 ✓ Full exchange observed
09-23 17:13 40m -1 / -8 ON4AEO -6 / -16 3 ✓ Full exchange observed
09-23 17:12 40m +5 / +1 DC7KM +16 / - 5 ✓ Closing observed
09-23 17:07 40m +8 / - OM5NU - / -6 5 Partial capture
09-23 17:02 40m +11 / - OE3DSB - / -5 9 Partial capture
09-23 17:01 40m +16 / - ON6LEO - / -7 2 Partial capture
09-23 16:59 40m +12 / -2 IK2UCK +8 / -4 5 ✓ Full exchange observed
09-23 16:58 40m +10 / -8 OM3CPV -12 / -18 4 ✓ Full exchange observed
09-23 16:51 40m +7 / +1 SV1ENG -4 / +5 5 ✓ Full exchange observed
09-23 16:50 40m +2 / - HA1BF - / - 2 ✓ Closing fragment
09-23 16:18 40m +10 / - PD0REB - / -20 23 Partial capture
09-23 16:16 40m +7 / - YC2UKL - / -22 4 Partial capture
09-23 16:12 40m +10 / - PD0DEX 0 / -4 5 ✓ Closing observed
09-23 16:11 40m +12 / - OH3OJ - / - 2 Partial capture
09-23 16:10 40m +9 / - ON5EA - / -25 3 ✓ Closing fragment
09-23 16:09 40m +11 / -19 G7KFQ -16 / -25 3 ✓ Full exchange observed
09-23 16:07 40m +12 / - IZ2SPX - / +8 2 ✓ Closing fragment
09-23 15:59 40m +10 / - IZ3SNR - / -9 9 Partial capture
09-23 15:58 40m +6 / - G5STU - / -16 2 ✓ Closing fragment
09-23 15:56 40m +7 / - YB2TTM - / -16 3 Partial capture
09-23 15:55 40m +9 / - PD0REB - / -22 3 Partial capture
09-23 15:47 40m +8 / - OH3DJP - / -23 8 ✓ Closing fragment
09-23 15:44 40m +5 / -11 IK8DYE -11 / -5 5 ✓ Full exchange observed
09-23 15:43 40m +7 / -1 YO9PH +5 / +9 4 ✓ Full exchange observed
09-21 21:05 40m - / +5 DG3EAJ -9 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
210100  +9  557  ON4MAP OE3UKW RR73
210130  +4  557  CQ OE3UKW JN88
210215  -8 1244  OE3UKW M0KHR IO91
210230  -5  557  M0KHR OE3UKW -07
210245 -13 1243  OE3UKW M0KHR R+00 (x2)
210700  +2  557  HB9IAW OE3UKW -03
210715  -5 1687  OE3UKW HB9IAW R-05
210730  +1  557  HB9IAW OE3UKW -03
210745  -9 1686  OE3UKW HB9IAW R-05
210800  +0  556  HB9IAW OE3UKW RR73
210815  -9 1686  OE3UKW HB9IAW 73
210900  +6  557  F6FHZ OE3UKW -15 (x3)
160m
UTC    dB Audio  Message
215945  +8  551  SM6LRY OE3UKW -12
210500  -3 2187  OE3UKW OH5KNL -13
210515 +16  556  OH5KNL OE3UKW R-03
210530  -1 2187  OE3UKW OH5KNL RR73
210545 +14  556  OH5KNL OE3UKW 73
210615 +17  556  CQ OE3UKW JN88 (x2)
210700  -1  556  OE3UKW IW5ABF JN53
210715 +16  556  CQ OE3UKW JN88
210730  -5  761  OE3UKW R5AV -14
210730 +12  407  OE3UKW OM3SX KN08
210745 +13  557  OM3SX OE3UKW -06
210800 +14  407  OE3UKW OM3SX R+10
210815 +18  557  OM3SX OE3UKW RR73
210830 +13  407  OE3UKW OM3SX 73
60m
UTC    dB Audio  Message
204830  +8  587  LA5SJA OE3UKW RR73
204845 -21 1869  OE3UKW LA5SJA 73
204900  +6  588  OZ5VO OE3UKW -17 (x2)
205130  +8  587  ON6AT OE3UKW JN88 (x2)
205215 -21 1653  OE3UKW ON6AT R-10
205230 +11  587  ON6AT OE3UKW RR73
205245 -16 1654  OE3UKW ON6AT 73
205915  -5 1462  OE3UKW EB5AFK IM98 (x2)
210215 +21  588  OE3UKW UT5ECZ RR73
210345 -16 1077  OE3UKW UN7EG MO52 (x2)
205945 -23 1664  OE3UKW LA9JKA 73
40m
UTC    dB Audio  Message
184845  -5  320  OE3UKW OH6DHM R+10
184915  +0 2856  OE3UKW RD3FY KO85 (x4)
185215  -8 2259  OE3UKW EU6UE R+06 (x4)
190030  -3 2817  OE3UKW IC8TEM R-02 (x2)
191200  -4 2031  OE3UKW IZ7BMX 73
205015  -8 2632  OE3UKW JE2ERR 73
205545 -12  596  OE3UKW SA6EQU JO69
205145 -18 1445  OE3UKW UA9SY 73
10m
UTC    dB Audio  Message
114030 -20 2267  OE3UKW DA6KB 73
115200  +4  452  OE3UKW DO1ID JO41 (x4)
121030  +5 2737  OE3UKW SV2AEL R-02 (x2)
121230 -20 2164  OE3UKW SV4TQR 73
123300 -10  988  OE3UKW UR5LY R-13 (x2)
145145  -3 2493  OE3UKW OG2M R+03 (x2)
145345  -9 1741  OE3UKW II7MGBT R-07
172145 -19 1769  OE3UKW HB9AOF 73
172815 -14  881  OE3UKW SV3SFJ R+14
20m
UTC    dB Audio  Message
161915 -12 1276  OE3UKW CR5VP 73
170230  -5 2077  OE3UKW GM3RTG R+27 (x2)
191915  +0  462  OE3UKW G7NUT 73
191945 -13 1621  OE3UKW F4HSB JN37 (x4)
193015  -8 1190  OE3UKW PY7XC R-13 (x2)
194230  -8  974  OE3UKW CN8NS R-18 (x3)
202515 -24 1819  OE3UKW JA0IXW 73
204500 -19 2223  OE3UKW JJ2IJU 73

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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