SP4NKU — 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: KO12

Receiver-side FT8 activity involving SP4NKU, decoded by SO8OO in southeastern Poland. 1,749 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 70 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-05.

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 1,749 FT8 messages attributed to SP4NKU as the transmitting token by decoded message structure across 70 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (64%), followed by 40 m (32%) and 20 m (4%). Most decodes (56%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5 dB.

Overview

1,749
Messages attributed
70
UTC dates decoded
212
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-05 04:52 UTC

Observed FT8 message patterns

Attributed sample
1,749 messages
Active dates
70 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-16 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 197, moderate (-15 to -9 dB) 405, strong (≥ -8 dB) 1,147.

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 SP4NKU

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
KO12 · 1,270 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
297 km (approx.)
Last such locator decoded
2026-11-05 04:51 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 UTCBandSP4NKU S/NCounterpartCounterpart S/NMsgsCapture
11-05 04:50 80m -10 / - UA9XL/P - / -17 5 Partial capture
11-04 06:28 40m -4 / - DL/N0PNG - / -12 2 Partial capture
11-04 02:57 80m -14 / - GB1RBL - / -15 2 Partial capture
11-04 02:52 80m -13 / -16 GB1RBL -12 / -15 10 ✓ Full exchange observed
11-04 02:50 80m - / -19 RA6FCU/P -2 / - 2 Partial capture
11-04 02:49 80m -14 / - 6W/IK2HKT - / -9 4 Partial capture
11-02 03:12 80m -16 / - 6W/IK2HKT - / - 3 Partial capture
11-02 03:07 80m -16 / - 6W/IK2HKT - / - 2 Partial capture
11-02 03:03 80m -19 / - RA6FCU/P - / - 5 Partial capture
11-02 02:58 80m -17 / - 6W/IK2HKT - / - 4 Partial capture
11-02 02:49 80m -15 / - PC40EUDXF - / - 8 Partial capture
11-02 02:46 80m -14 / -14 DK0GV +4 / -2 7 ✓ Full exchange observed
11-02 02:32 80m -18 / -16 GB1RBL -17 / - 4 Partial capture
11-01 23:50 80m -8 / - DN2MM - / - 11 Partial capture
11-01 23:45 80m -20 / -11 T77RN -9 / -21 10 ✓ Full exchange observed
11-01 23:44 80m -20 / - SP9TBT/5 - / -4 2 Partial capture
11-01 07:06 40m -17 / - II1VVF - / -17 5 Partial capture
11-01 06:57 40m -9 / - A60FD/31 - / - 14 Partial capture
11-01 06:43 40m - / -6 II4GCLB -14 / - 2 Partial capture
11-01 05:01 40m - / -10 TA1MB -11 / - 3 ✓ Closing fragment
11-01 00:11 40m - / -10 YO1BRANCUSI -4 / - 6 Partial capture
10-31 00:35 80m -21 / - <...> - / +7 2 Partial capture
10-31 00:31 80m - / -16 EX7DY -18 / - 2 ✓ Closing fragment
10-30 03:25 80m -5 / -18 R6LE -5 / -3 9 ✓ Full exchange observed
10-30 03:23 80m -1 / -20 R8CA -13 / -12 5 ✓ Full exchange observed
10-30 03:22 80m -4 / -13 R3XBS -6 / -11 4 ✓ Full exchange observed
10-30 03:13 80m -8 / - DO6FM - / - 10 Partial capture
10-30 02:32 40m - / -12 TC1TR +4 / - 2 ✓ Closing fragment
10-30 02:07 40m - / -4 TC2TR -12 / - 2 ✓ Closing fragment
10-29 05:27 40m - / -9 TC2TR -18 / - 2 ✓ Closing fragment
10-28 04:43 40m - / -13 TC6ATA -8 / - 3 Partial capture
10-27 02:11 40m - / -1 M9XPN -10 / - 4 ✓ Closing fragment
10-26 01:25 80m -8 / - OK2ZDL - / - 6 Partial capture
10-26 00:47 80m -11 / - RD0L/P - / - 4 Partial capture
10-25 14:35 40m -4 / - SP2ZST -12 / 0 5 ✓ Closing observed
10-25 13:53 40m +4 / - RD0L/P - / -25 5 Partial capture
10-25 13:45 40m +3 / - RD0L/P - / - 6 Partial capture
10-24 00:56 40m - / -9 F1PBZ -5 / - 4 Partial capture
10-24 00:50 80m -22 / -5 DO2FRE -3 / -10 6 ✓ Full exchange observed
10-23 23:56 80m -14 / -17 DO5PY -1 / - 3 ✓ Closing observed
10-23 23:53 80m - / -23 SN0EG +4 / - 5 ✓ Closing fragment
10-23 23:50 80m - / 0 DK2LG +16 / - 2 Partial capture
10-23 23:47 80m -14 / - DL1EDR +6 / -6 4 ✓ Closing observed
10-23 23:47 80m -14 / - EI4JFB - / -16 2 ✓ Closing fragment
10-23 23:41 80m -19 / -18 DO1YFF +5 / -11 9 ✓ Full exchange observed
10-23 06:34 40m -16 / - R1QF/P - / -4 4 Partial capture
10-23 05:58 40m -7 / - R1QF/P - / - 6 Partial capture
10-22 22:58 80m -8 / -18 UN7EAX -6 / -7 5 ✓ Full exchange observed
10-22 22:57 80m -8 / -7 DO8PAT +2 / - 4 ✓ Closing observed
10-22 22:50 80m -1 / - DO4CNA - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
025230 -14 1703  SP4NKU GB1RBL -16
025245  -7 2574  GB1RBL SP4NKU R-15
025300 -12 1703  SP4NKU GB1RBL RR73
025315 -12 2574  GB1RBL SP4NKU R-15
025330 -11 1703  SP4NKU GB1RBL RR73
025345 -16 2574  GB1RBL SP4NKU R-15
025400 -11 1703  SP4NKU GB1RBL RR73
025415 -15 2574  GB1RBL SP4NKU R-15 (x3)
045015 -14 2197  UA9XL/P SP4NKU KO12 (x5)
40m
UTC    dB Audio  Message
070230 -12  916  A60FD/31 SP4NKU KO12 (x5)
070600 -14 2009  II1VVF SP4NKU KO12 (x5)
072030  +2  737  SP4NKU PE40EUDXF -12 (x2)
062830  -9 2307  DL/N0PNG SP4NKU KO12
062845 -11 2830  SP4NKU UA9XL/P -11
062900  +2 2307  DL/N0PNG SP4NKU R-12
10m
UTC    dB Audio  Message
153315 -17 2120  SP4NKU F4IDN R+00 (x2)
153415 -20 1783  SP4NKU PE9JAN JO22 (x2)
101945  -5 2330  SP4NKU <...> -08 (x3)
124015 -11 2560  SP4NKU TF4M RR73
160m
UTC    dB Audio  Message
002330 +13 1490  SP4NKU LZ2IP -18 (x2)
024245 -22 2148  OH0Z SP4NKU KO12
024530  +4 1287  SP4NKU LY3BRA -18 (x2)
60m
UTC    dB Audio  Message
060130  -8 1697  SP4NKU LZ2XF KN33
20m
UTC    dB Audio  Message
151500  +9 2694  SP4NKU PD0PWH JO21 (x3)
152130  -9 2683  SP4NKU RN4AZ LN29
152130  -8 1825  SP4NKU M7JVT IO94 (x2)
152200 -13 2693  SP4NKU F5OYA/P
152230 -10 1825  SP4NKU M7JVT R-03
152330  -8 2692  SP4NKU PA2KV JO33 (x2)
152400  -7 2102  SP4NKU EP2AES LM55
152430 -10 2693  SP4NKU PA2KV 73
154830  +0  771  SP4NKU DK9NP -05 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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