SP3UKK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO82

Receiver-side FT8 activity involving SP3UKK, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-05.

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 123 FT8 messages attributed to SP3UKK as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 80 m (29%) and 160 m (19%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

123
Messages attributed
1
UTC dates decoded
12
Active 15-min windows
-9 dB
Estimated median S/N

Bands

160m · 23 80m · 36 40m · 64
First attributed message: 2026-07-05
Last attributed message: 2026-07-05 21:53 UTC

Observed FT8 message patterns

Attributed sample
123 messages
Active dates
1 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-13 to +4 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 57.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP3UKK 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 SP3UKK

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
JO82 · 59 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
439 km (approx.)
Last such locator decoded
2026-07-05 21:52 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 UTCBandSP3UKK S/NCounterpartCounterpart S/NMsgsCapture
07-05 21:52 160m -10 / -1 DH3KR -15 / -11 5 ✓ Full exchange observed
07-05 21:51 160m -8 / - F5RRS - / - 2 Partial capture
07-05 21:48 160m -6 / +4 SP2LLP +3 / +5 5 ✓ Full exchange observed
07-05 21:42 80m -2 / -4 IT9BYL -10 / -13 5 ✓ Full exchange observed
07-05 21:40 80m +4 / -12 DO9BAU +1 / -1 5 ✓ Full exchange observed
07-05 21:39 80m +2 / -10 UA4FKT +6 / +6 4 ✓ Full exchange observed
07-05 21:38 80m +3 / -2 SK3WWA +4 / +1 5 ✓ Full exchange observed
07-05 21:36 80m +6 / - II8WWA -5 / -9 4 ✓ Closing observed
07-05 21:23 160m -8 / -14 UI6A +3 / -19 6 ✓ Full exchange observed
07-05 21:22 160m -10 / -18 RK4FH -5 / -20 9 ✓ Full exchange observed
07-05 21:20 160m -7 / -13 EI5GSB -11 / -14 2 Partial capture
07-05 20:51 40m -15 / - LA2VLA - / -9 3 ✓ Closing fragment
07-05 20:49 40m -12 / - OH3NXW - / - 3 ✓ Closing fragment
07-05 20:44 80m -5 / - SQ8V - / -7 2 Partial capture
07-05 19:54 80m +7 / - II7WWA - / - 3 Partial capture
07-05 19:49 40m -8 / - EG4WWA - / - 2 Partial capture
07-05 19:46 40m -11 / - OZ7DR - / - 3 Partial capture
07-05 19:43 40m -9 / - SN4WWA -17 / +1 6 ✓ Full exchange observed
07-05 19:39 40m -9 / - 9A4ZM -12 / - 3 ✓ Closing observed
07-05 19:38 40m -11 / -11 E75AA -16 / -8 3 ✓ Full exchange observed
07-05 19:37 40m -8 / - II0WWA - / - 2 Partial capture
07-05 19:35 40m -6 / 0 TM2WWA -7 / +9 5 ✓ Full exchange observed
07-05 19:34 40m -8 / - II0WWA - / - 2 Partial capture
07-05 19:32 40m -8 / 0 II3WWA +6 / +2 4 ✓ Full exchange observed
07-05 19:29 40m -9 / - CS2WWA - / -15 5 ✓ Closing fragment
07-05 19:26 40m -7 / - SK3WWA - / -9 7 ✓ Closing fragment
07-05 19:24 40m -9 / - CS2WWA - / - 3 Partial capture
07-05 19:23 40m -11 / -11 PE1NPS -12 / +6 6 ✓ Full exchange observed
07-05 19:21 40m -14 / - GB2WWA - / -6 3 ✓ Closing fragment
07-05 19:20 40m -12 / - 8A1WWA - / -9 2 ✓ Closing fragment
07-05 19:18 40m -13 / - SK3WWA - / - 2 Partial capture
07-05 19:16 40m -12 / - II9WWA - / +3 4 ✓ Closing fragment
07-05 19:15 40m -12 / - II5WWA -10 / +2 3 ✓ Closing observed
07-05 19:09 80m +5 / -8 SN3WWA +8 / 0 6 ✓ Full exchange observed
07-05 19:07 80m +7 / -8 II8WWA -11 / - 5 Partial capture
07-05 19:05 80m +5 / 0 DA0WWA +1 / -7 5 Partial capture
07-05 19:03 80m +4 / -12 R7CD +10 / -3 5 ✓ Full exchange observed
07-05 19:01 80m +4 / -9 SV1BLD +8 / -4 5 ✓ Full exchange observed
07-05 19:00 80m -7 / -15 9A4ZM -3 / - 4 ✓ Closing observed
07-05 18:59 80m -13 / -7 DO6MFD -12 / -11 3 ✓ Full exchange observed
07-05 17:44 40m -13 / - PD0HI - / -14 3 ✓ Closing fragment
07-05 17:41 40m -12 / - UA9XL - / - 2 Partial capture
07-05 17:34 40m -15 / - A61CK - / -11 2 ✓ Closing fragment
07-05 17:12 10m - / -12 EA3FCQ -6 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
212600  -8 1600  UI6A SP3UKK 73
212630 -10 1600  CQ SP3UKK JO82                        a1 (x2)
214830  -4 1645  SP2LLP SP3UKK JO82 (x2)
214915  +1 1644  SP3UKK SP2LLP +04
214930  -6 1644  SP2LLP SP3UKK R+05
214945  +5 1644  SP3UKK SP2LLP RR73
215100  -6 1645  F5RRS SP3UKK JO82 (x2)
215230 -10 1644  DH3KR SP3UKK JO82
215245 -15 1495  SP3UKK DH3KR -01
215300 -10 1644  DH3KR SP3UKK R-11
215315 -15 1496  SP3UKK DH3KR RR73
215330  -9 1644  DH3KR SP3UKK 73
80m 
UTC    dB Audio  Message
213900  -5 1701  SP3UKK II8WWA R+13
213915  +9 1606  SP3UKK UA4FKT LO23
213930  +2 1606  UA4FKT SP3UKK +06
213945  +1 1606  SP3UKK UA4FKT R-10 (x2)
214015  +5 2002  SP3UKK DO9BAU JO62
214030  +5 1606  DO9BAU SP3UKK -01
214045  +0 2002  SP3UKK DO9BAU R-12
214100  +3 1606  DO9BAU SP3UKK RR73
214115  -3 2002  SP3UKK DO9BAU 73
214215  -2 1651  IT9BYL SP3UKK JO82
214230 -11 1525  SP3UKK IT9BYL -04
214245  -1 1651  IT9BYL SP3UKK R-13
214300 -10 1525  SP3UKK IT9BYL RR73
214315  -2 1651  IT9BYL SP3UKK 73
40m 
UTC    dB Audio  Message
194400 -15 1993  SP3UKK SN4WWA +16
194415 -11 2095  SN4WWA SP3UKK R+01
194430 -16 1993  SP3UKK SN4WWA RR73
194445  -7 2095  SN4WWA SP3UKK 73
194645 -11 2095  OZ7DR SP3UKK JO82 (x3)
194915  -7 2095  EG4WWA SP3UKK JO82 (x2)
204900 -11 2340  OH3NXW SP3UKK JO82 (x3)
205130 -14 2340  LA2VLA SP3UKK JO82 (x3)
10m 
UTC    dB Audio  Message
171245  -7 2606  SP3UKK EA3FCQ -12 (x3)

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee