SP8XGU — 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: Poland Most frequent locator attributed to this token: KO00

Receiver-side FT8 activity involving SP8XGU, decoded by SO8OO in southeastern Poland. 701 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.

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 701 FT8 messages attributed to SP8XGU as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 160 m (21%) and 60 m (10%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was +1 dB.

Overview

701
Messages attributed
31
UTC dates decoded
67
Active 15-min windows
+1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-23 03:43 UTC

Observed FT8 message patterns

Attributed sample
701 messages
Active dates
31 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-12 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 117, strong (≥ -8 dB) 554.

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 SP8XGU

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
KO00 · 442 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
84 km (approx.)
Last such locator decoded
2026-10-23 03:43 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 UTCBandSP8XGU S/NCounterpartCounterpart S/NMsgsCapture
10-23 03:38 160m -1 / -22 R5AV +4 / 0 4 ✓ Full exchange observed
10-23 03:35 80m 0 / - DO1OAS -10 / -13 4 ✓ Closing observed
10-23 03:31 80m -3 / -15 R6AAG -5 / -14 6 Partial capture
10-23 03:30 80m -4 / -14 RW6HP 0 / -3 7 ✓ Full exchange observed
10-23 03:28 80m -9 / -2 DL4HTK 0 / - 3 ✓ Closing observed
10-22 18:23 40m - / 0 M7KSV -13 / - 2 ✓ Closing fragment
10-22 18:07 40m - / -12 DF2JK 0 / - 2 ✓ Closing fragment
10-22 17:48 40m - / -5 M9MKE -14 / - 3 ✓ Closing fragment
10-22 17:37 40m - / -4 GJ0KYZ +3 / - 2 ✓ Closing fragment
10-22 03:40 60m - / -4 ON1JP -14 / - 2 ✓ Closing fragment
10-22 03:33 40m - / -10 R4ML -8 / - 2 ✓ Closing fragment
10-22 03:25 40m - / +3 YY5EHT -19 / - 3 Partial capture
10-21 04:04 160m +6 / - DC0ED - / -18 2 ✓ Closing fragment
10-21 04:02 160m -3 / -13 Z35Z +2 / -5 4 ✓ Full exchange observed
10-21 03:58 80m -16 / - ON4MAP - / -13 2 ✓ Closing fragment
10-21 03:57 80m -6 / -5 PA3BUD -4 / -9 4 ✓ Full exchange observed
10-21 03:55 80m -8 / -7 M7KEV -14 / -8 4 ✓ Full exchange observed
10-21 03:54 80m -5 / +4 9A2G +7 / +1 5 ✓ Full exchange observed
10-21 03:51 80m -13 / -5 SP5DFK/QRP -11 / -11 2 Partial capture
10-21 03:49 80m -10 / - TA3NK -8 / -13 3 ✓ Closing observed
10-21 03:48 80m -9 / -3 DD8BA +4 / -2 4 ✓ Full exchange observed
10-21 03:46 80m -13 / - M9XPN - / -19 4 ✓ Closing fragment
10-21 03:45 80m -5 / -4 YO3FWL +1 / - 4 ✓ Closing observed
10-21 03:38 60m - / -3 PA4PA +11 / - 4 ✓ Closing fragment
10-21 03:17 40m - / - YY5EHT -21 / - 3 Partial capture
10-20 03:50 40m - / -5 UA9SY -9 / - 3 ✓ Closing fragment
10-18 04:07 40m - / -8 TA3NK -14 / - 3 ✓ Closing fragment
10-16 04:01 40m - / +2 SV5AZK -20 / - 2 Partial capture
10-16 03:58 40m - / - SV5AZK -12 / - 2 Partial capture
10-16 03:55 40m - / -10 R4ML -14 / - 2 ✓ Closing fragment
10-14 03:55 160m +17 / -7 S57MK -15 / -16 4 ✓ Full exchange observed
10-14 03:50 80m -2 / -12 M9XPN -6 / -17 7 ✓ Full exchange observed
10-14 03:50 80m -6 / -14 ON4MAP -10 / -19 8 ✓ Full exchange observed
10-14 03:49 80m - / - RA6HN -5 / - 2 Partial capture
10-14 03:46 80m 0 / -2 YU0U +16 / 0 5 ✓ Full exchange observed
10-14 03:45 80m 0 / - SM7WNM - / -2 2 ✓ Closing fragment
10-11 03:47 40m - / -8 R4FDD 0 / - 2 ✓ Closing fragment
10-10 04:26 40m - / -12 IU2THY -3 / - 3 Partial capture
10-10 04:24 40m - / 0 GJ0KYZ -2 / - 2 ✓ Closing fragment
10-10 04:21 40m - / -22 EA5RO -18 / - 3 ✓ Closing fragment
10-10 04:18 40m - / - LY4Q -5 / - 3 ✓ Closing fragment
10-09 03:51 160m +2 / - IT9JNR - / - 2 Partial capture
10-09 03:46 160m +5 / -7 OM3SX +5 / -2 9 ✓ Full exchange observed
10-09 03:38 80m -6 / - UA3YPS 0 / -2 12 Partial capture
10-09 03:35 80m - / -16 EI4JFB -2 / - 3 ✓ Closing fragment
10-09 03:33 80m - / -9 SP8BJU -8 / - 2 ✓ Closing fragment
10-08 03:52 80m -15 / - DL0RDG -16 / -20 3 Partial capture
10-08 03:51 80m -13 / - OH6IH -16 / - 2 ✓ Closing observed
10-08 03:46 40m - / -5 YY5EHT -20 / - 3 Partial capture
10-07 04:00 160m +5 / - GU4WRP - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
035515  -7 1183  CQ SP8XGU KO00 (x3)
035700  -7 1504  F4EGM SP8XGU -20
033815 +12  698  CQ SP8XGU KO00
033830  +3  698  SP8XGU R5AV -22
033845  +4  698  R5AV SP8XGU R+00
033900  +4  700  SP8XGU R5AV RR73
033915  -6  698  R5AV SP8XGU 73
033945  -4  698  CQ SP8XGU KO00 (x6)
80m
UTC    dB Audio  Message
033145  -1  699  SP8XGU RW6HP 73
033145  -9 2723  SP8XGU R6AAG -15
033200  -6  698  R6AAG SP8XGU R-14
033215  -4 2723  SP8XGU R6AAG -15
033230  -5  698  R6AAG SP8XGU R-12 (x2)
033330  -3  698  CQ SP8XGU KO00 (x3)
033500 -10  698  SP8XGU DO1OAS JO51
033515  -3  698  DO1OAS SP8XGU -13 (x2)
033600  -9  699  SP8XGU DO1OAS 73
033615  +3  698  CQ SP8XGU KO00 (x2)
40m
UTC    dB Audio  Message
033330  -8  807  SP8XGU R4ML RR73
173645  -2 2066  SP8XGU PE9JAN 73
173715  +3  539  SP8XGU GJ0KYZ -04 (x2)
174515 -15 1670  SP8XGU IZ2SXZ 73
174845 -16  538  SP8XGU M9MKE IO82 (x3)
175345 -16 2039  SP8XGU M0SVX R-01
180530  -3  506  SP8XGU F4NFM IN97
180700  +4  505  SP8XGU DF2JK R-12 (x2)
182330 -12  505  SP8XGU M7KSV +00 (x2)
031130  +2  745  SP8XGU IU7FQK JN80
60m
UTC    dB Audio  Message
035300  +1  503  SP8XGU SP5JMA KO02 (x3)
035700 -11 1424  SP8XGU DK2YCT JO32
035900  +0  625  SP8XGU F6ICX JN18 (x3)
033000  -2 1642  SP8XGU LZ936BA -02
033000 -17 1145  SP8XGU EA2EGI -14
033830 +11  263  SP8XGU PA4PA JO22 (x4)
034015 -14 1345  SP8XGU ON1JP -04 (x2)
20m
UTC    dB Audio  Message
033445  -8  575  SP8XGU K9GM EN63 (x5)
034300 -20 1517  SP8XGU EW3DK KO33 (x2)
040045 -12 1118  SP8XGU NE5TX 73
015815 -16  960  SP8XGU IW5ALZ R+00
10m
UTC    dB Audio  Message
191245  -9  578  SP8XGU DL7JE JO30 (x2)

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

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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