SP4OIK — 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: KO03

Receiver-side FT8 activity involving SP4OIK, decoded by SO8OO in southeastern Poland. 5,254 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 99 UTC dates in the available aggregate history. Observed between 2026-06-06 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 5,254 FT8 messages attributed to SP4OIK as the transmitting token by decoded message structure across 99 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (42%) and 60 m (6%). Most decodes (53%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -4 dB.

Overview

5,254

Messages attributed

UTC dates decoded

776

Active 15-min windows

-4 dB

Estimated median S/N

Bands

160m · 2 80m · 2,228 60m · 298 40m · 2,639 20m · 87

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 15:30 UTC

Observed FT8 message patterns

Attributed sample: 5,254 messages
Active dates: 99 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -14 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 349, moderate (-15 to -9 dB) 1,196, strong (≥ -8 dB) 3,709.

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 SP4OIK in decoded directed-looking exchanges:

SP7VCL · Poland ×10 IQ2AAH · Italy ×9 SQ8V · Poland ×9 SP8BJU · Poland ×7 SQ8AZT · Poland ×7 SP4VIT · Poland ×6 IN3IBW · Italy ×5 IQ4JO · Italy ×5 SQ5ANT · Poland ×5 SP9KKA · Poland ×4 SQ8NGI · Poland ×4 OT4R · Belgium ×3

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 SP4OIK

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: KO03 · 2,845 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 400 km (approx.)
Last such locator decoded: 2026-09-26 05:28 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 UTC	Band	SP4OIK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 15:29	60m	-5 / -10	SP4NKJ	+6 / 0	4	✓ Full exchange observed
11-05 15:18	80m	-3 / +4	SQ8N	+10 / +10	9	✓ Full exchange observed
11-03 20:12	80m	-8 / -18	ES6RMR	-12 / -20	12	Partial capture
11-03 17:27	80m	- / -17	SQ8NGV	-13 / -	2	Partial capture
11-02 17:18	80m	-13 / -	DK80NDS	- / -14	3	Partial capture
11-02 17:15	80m	-14 / -	DK80NDS	- / -14	2	Partial capture
11-02 17:07	80m	-14 / -25	DK80NDS	-7 / -14	8	Partial capture
11-02 13:03	40m	-11 / -	SH5RJX	-15 / -2	4	Partial capture
11-01 20:50	80m	-10 / -15	9A60CBM	+8 / -15	4	Partial capture
11-01 19:51	60m	- / -13	9A60CBM	-17 / -	2	Partial capture
11-01 14:26	40m	-9 / -	DK0GV	-8 / -3	8	✓ Closing observed
10-31 19:36	80m	-12 / -	5P1KZX	- / -	3	Partial capture
10-31 19:25	80m	-6 / -	5P1KZX	- / -	4	Partial capture
10-31 18:06	40m	-18 / -	W4QLC	- / -7	3	Partial capture
10-31 08:00	40m	-11 / -	F5OYA/P	- / -1	3	Partial capture
10-30 21:44	80m	-13 / -12	9A60CBM	+3 / -9	9	Partial capture
10-30 21:38	80m	-2 / -13	9A60CBM	+3 / -	7	Partial capture
10-30 18:01	60m	-9 / -17	9A60CBM	-14 / -18	18	Partial capture
10-30 17:27	80m	-18 / -9	SQ8V	-2 / -12	4	✓ Full exchange observed
10-30 16:01	80m	-9 / -6	YU65AEC	0 / -10	3	Partial capture
10-29 21:01	80m	-19 / -15	SQ5NO	-16 / -16	11	Partial capture
10-29 20:34	80m	- / -14	SP7VCL	-4 / -	4	✓ Closing fragment
10-29 18:22	80m	-10 / -10	SQ8V	-12 / -8	2	Partial capture
10-29 08:45	40m	-14 / -	SQ3EWA	- / -11	2	Partial capture
10-28 13:37	10m	- / +3	TN8GD	-15 / -	2	Partial capture
10-27 18:26	80m	+2 / -9	SQ8V	-6 / -	3	✓ Closing observed
10-27 18:17	40m	- / -10	9A60CBM	-11 / -	5	Partial capture
10-27 15:24	40m	+4 / -	SQ8V	- / -15	4	Partial capture
10-27 07:57	40m	-10 / -	SP6TKK	-6 / +1	6	✓ Full exchange observed
10-27 07:46	40m	-13 / -	SQ3EWA	- / -13	9	Partial capture
10-26 21:09	80m	-10 / -7	SP7VCL	-8 / -9	4	✓ Full exchange observed
10-26 20:14	80m	-8 / -15	HF10SQ8W	-5 / -	2	Partial capture
10-26 19:39	80m	-12 / -	DO9BAU	- / -	11	Partial capture
10-26 19:36	80m	-4 / -	SQ9MEZ	-4 / -10	7	✓ Closing observed
10-26 18:25	80m	-7 / -	SQ8V	- / -11	3	Partial capture
10-25 10:42	40m	- / -16	S53AK	-4 / -	4	Partial capture
10-25 10:40	40m	-8 / +10	SP5ROM	-6 / -	5	✓ Closing observed
10-25 07:16	40m	-4 / +1	SQ8V	0 / -	4	✓ Closing observed
10-24 19:17	80m	-8 / -5	SQ9MEZ	-2 / -17	5	Partial capture
10-24 18:57	80m	- / -16	SQ3EWA	-13 / -	2	Partial capture
10-24 18:46	80m	-10 / -16	SQ3EWA	-3 / -19	7	Partial capture
10-24 18:42	80m	-6 / -9	SP6TKK	+11 / -14	8	✓ Full exchange observed
10-24 18:26	80m	-8 / -	SQ3EWA	- / -19	17	Partial capture
10-24 18:19	80m	-8 / -	SQ3EWA	- / -19	2	Partial capture
10-24 18:12	80m	-8 / -	SQ3EWA	-21 / -19	2	✓ Closing observed
10-24 18:03	80m	-8 / -	SQ3EWA	- / -19	7	Partial capture
10-24 17:47	80m	-12 / -17	SQ3EWA	-16 / -19	14	✓ Full exchange observed
10-24 07:41	80m	- / -1	SP7VCL	+3 / -	3	✓ Closing fragment
10-24 07:34	40m	-1 / -	SP4GDW	-6 / -13	6	✓ Closing observed
10-24 07:02	40m	-12 / -13	9A60CBM	-16 / -14	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
180345 -17 1233  SP4OIK 9A60CBM -17
180430  -9 1232  9A60CBM SP4OIK (x2)
180515 -12 1233  SP4OIK 9A60CBM -12
180530  -3 1232  9A60CBM SP4OIK R-18 (x5)
195115 -17 1154  SP4OIK 9A60CBM -13 (x2)
152930  -4  882  SP4NKJ SP4OIK
152945  +6  882  SP4OIK SP4NKJ -10
153000  -6  882  SP4NKJ SP4OIK R+00
153015  +7  882  SP4OIK SP4NKJ RR73

80m

UTC    dB Audio  Message
201730 -10 1435  ES6RMR SP4OIK -17 (x5)
202045 -15 1435  SP4OIK ES6RMR R-24
151815  -4  686  SQ8N SP4OIK (x4)
152000  +6  686  SP4OIK SQ8N +04
152015  -5  687  SQ8N SP4OIK
152030  +5  686  SP4OIK SQ8N +01
152045  -2  686  SQ8N SP4OIK R+10
152100 +19  686  SP4OIK SQ8N RR73

40m

UTC    dB Audio  Message
180630 -17 1836  W4QLC SP4OIK -07 (x2)
142630 -13 1670  DK0GV SP4OIK (x7)
143015  -8 1670  SP4OIK DK0GV RR73
130330 -13 1062  SH5RJX SP4OIK (x2)
130415 -15 1063  SP4OIK SH5RJX +14
130430  -9 1062  SH5RJX SP4OIK R-02
162200  -9 1130  SP4OIK DK0GV -25

160m

UTC    dB Audio  Message
200500 +11 2185  SP4OIK SP100PKP -22
200530 +14 2185  SP4OIK RR73; UA4FKT <...> -04
192800 +13 1069  SP4OIK SO100PKP -13
194530 +10 1069  SP4OIK RR73; EW8MZ <...> +00
192000  -3 1989  SP4OIK SN100PKP -10 (x2)
194700 +13 2295  SP4OIK RR73; YL3KZ <...> +00
204930  -4  664  SP4OIK DO3VE JO52
205830  +3 2063  SP4OIK RR73; OM1AN <...> -06
203600  +8  366  SP4OIK SP2LLP -08 (x2)
192700 -19 1711  SP4LVG SP4OIK
221530 -12 2617  SP9MRO SP4OIK

10m

UTC    dB Audio  Message
141415 +12  421  SP4OIK OE4DJN -08 (x2)
090200 -14 1880  SP4OIK II7MGMU -06
140345 -24 1628  SP4OIK II7MGXX -11
150115  -8 1758  SP4OIK II7MGBT -15
133730 -12 1519  SP4OIK TN8GD +03 (x2)
133900 -23 1579  SP4OIK RR73; DG0JBA <TN8GD> +08

20m

UTC    dB Audio  Message
190845  +2 1072  <...> SP4OIK KO03
211200  +0 2221  SP4OIK II7MGBR -07
182815 -12 1754  SP4OIK IR7MGGC -06 (x3)
190000 -11 2803  SP4OIK UA0LQE PN53
190645  -6 1372  SP4OIK JA5ROH/P -11
050645  -3 1211  SP4OIK II7MGLE -14
050845 -14 2103  SP4OIK II7MGBT -10
062300  -4  930  SP4OIK II7MGBR -06
070300  +5  872  SP4OIK II7MGBT -13
173630 -13 2582  SP4OIK IR7MGGC -03
173830  +7  924  SP4OIK II7MGXX -12
125230  -9 2103  SP4OIK II7MGBT +06
125430  -2 1092  SP4OIK II7MGXX +04

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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