SP5SJL — 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: KO02

Receiver-side FT8 activity involving SP5SJL, decoded by SO8OO in southeastern Poland. 598 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 45 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-25.

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 598 FT8 messages attributed to SP5SJL as the transmitting token by decoded message structure across 45 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 80 m (29%) and 60 m (12%). Most decodes (74%) 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 (61%); the estimated median was -6 dB.

Overview

598

Messages attributed

UTC dates decoded

107

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 1 80m · 174 60m · 74 40m · 343 20m · 6

First attributed message: 2026-06-14
Last attributed message: 2026-10-25 10:36 UTC

Observed FT8 message patterns

Attributed sample: 598 messages
Active dates: 45 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 182, strong (≥ -8 dB) 366.

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 SP5SJL in decoded directed-looking exchanges:

SP4VIT · Poland ×3 IQ2AAH · Italy ×2 OZ1SMB · Denmark ×2 SP4GDW · Poland ×2 SP7VCL · Poland ×2 CR7BUJ · Portugal DN9MJK · Fed. Rep. of Germany D2ACE · Angola IZ4EKI · Italy OS9T · Belgium R4FDW · European Russia XV9T · Vietnam

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 SP5SJL

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: KO02 · 334 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-10-25 10:36 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	SP5SJL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-25 19:13	40m	- / +2	IK2VFQ	+5 / -	2	✓ Closing fragment
10-25 10:36	40m	-14 / -	SP4GDW	- / -	2	Partial capture
10-21 19:04	80m	- / -12	DK8HC	+2 / -	3	✓ Closing fragment
10-21 19:03	80m	-11 / -4	SP4VIT	-2 / -3	3	✓ Full exchange observed
10-18 19:48	40m	- / -17	A61DD	-15 / -	2	Partial capture
10-18 10:03	40m	-12 / -	SP4GDW	- / -6	3	✓ Closing fragment
10-18 10:00	40m	-14 / -12	SP4WSL	-12 / -2	4	✓ Full exchange observed
10-17 16:41	10m	- / -4	CR7BUJ	-6 / -	2	✓ Closing fragment
10-10 19:59	40m	- / -12	EA3CHO	-7 / -	2	✓ Closing fragment
10-10 09:48	40m	- / -	HF5W	-6 / -	2	Partial capture
10-10 09:45	40m	- / -	HF5W	+2 / -	2	Partial capture
10-10 09:42	40m	-8 / -	SP4GDW	- / -10	3	✓ Closing fragment
10-08 17:53	80m	-12 / -	SP4VIT	-9 / -	3	✓ Closing observed
10-07 12:34	40m	-20 / -5	DK1TBL	-9 / -	4	✓ Closing observed
10-07 10:28	40m	-9 / +1	SP4VIT	-16 / +1	4	✓ Full exchange observed
10-06 20:42	80m	-10 / -6	SP3JHZ	+3 / -9	5	✓ Full exchange observed
10-06 20:41	80m	-12 / -19	IQ4JO	+6 / -15	5	✓ Full exchange observed
10-06 19:14	40m	-14 / -15	EX7CQ	-12 / -	3	Partial capture
10-03 19:13	40m	- / -8	IQ2AAH	+2 / -	2	✓ Closing fragment
09-28 14:28	40m	-10 / -	SO100PKP	- / 0	2	Partial capture
09-28 14:26	40m	-9 / 0	SP2EOE	-6 / -	3	✓ Closing observed
09-28 14:21	40m	-8 / +7	SP100PKP	-7 / +3	5	Partial capture
09-20 16:52	40m	-9 / +2	SP9TEX	+11 / +1	5	✓ Full exchange observed
09-20 14:21	40m	-6 / +1	HF100PKP	-11 / -	4	Partial capture
09-20 14:19	40m	-6 / -8	II4IANT	-10 / -3	3	Partial capture
09-20 14:19	40m	-5 / -	UF6V/UA5D	- / -8	3	Partial capture
09-20 14:17	40m	-7 / -	SP9CXN	+10 / +2	5	✓ Full exchange observed
09-20 10:00	40m	-6 / -11	SQ2RBY/P	-17 / -	2	Partial capture
09-20 09:58	40m	-9 / -	IK2VFR/P	- / -6	2	Partial capture
09-19 18:10	80m	-3 / -	SN100PKP	- / -	2	Partial capture
09-19 18:06	80m	-7 / -12	9A3TGY	-5 / -20	6	✓ Full exchange observed
09-18 18:17	40m	0 / -	SO100PKP	- / -10	3	Partial capture
09-18 18:13	40m	+3 / -	GX3RAF/P	- / -9	5	Partial capture
09-17 11:27	40m	-10 / -	SQ100PKP	-2 / -	8	Partial capture
09-17 11:26	40m	-6 / -	IK3/UY7LA	- / +2	2	Partial capture
09-16 08:45	40m	-7 / -1	SQ9SZ	-8 / -18	5	✓ Full exchange observed
09-16 08:43	40m	-8 / -	W1AW/4	- / -6	2	Partial capture
09-13 18:46	40m	- / -7	EX7CQ	0 / -	2	Partial capture
09-13 07:06	60m	-10 / -	SP2OSA	-16 / -15	4	✓ Closing observed
09-12 17:42	40m	-7 / -	UB0SMX/P	- / -22	6	Partial capture
09-12 17:33	40m	-9 / -	II6IALU	- / -	2	Partial capture
09-12 16:13	40m	-4 / -	II8IHBC	-9 / -	2	✓ Closing observed
09-12 16:12	40m	- / -5	US3EW	+1 / -	5	✓ Closing fragment
09-12 16:11	40m	-18 / -	F4GMB/QRP	- / -14	2	Partial capture
09-12 13:19	40m	-4 / -	II9IAGM	- / -6	2	Partial capture
09-12 13:17	40m	-6 / -	UB3ADO/P	- / -	2	Partial capture
09-12 13:15	40m	-2 / -12	SQ3EWA	-18 / -14	5	✓ Full exchange observed
09-12 13:06	40m	-11 / -	UB3ADO/P	- / -10	2	Partial capture
09-12 13:04	40m	-11 / -9	SP7VCL	-8 / -13	5	✓ Full exchange observed
09-11 19:13	80m	+3 / -	SP100PKP	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
100100 -15 1601  SP4WSL SP5SJL R-02
100115 -12 1539  SP5SJL SP4WSL RR73
100130 -14 1600  SP4WSL SP5SJL 73
100330 -14 1600  SP4GDW SP5SJL KO02 (x3)
194815 -15  872  SP5SJL A61DD -17 (x2)
103615 -12 1760  SP4GDW SP5SJL KO02 (x2)
190445  -1 2582  SP5SJL EA6ABF -09
190830 -12 2026  SP5SJL EG46PPA -10
191300  +5 1266  SP5SJL IK2VFQ +02 (x2)
191600 -19 2135  SP5SJL M0EBM RR73

80m

UTC    dB Audio  Message
204230  +4  943  SP5SJL SP3JHZ JO71
204245 -10 1783  SP3JHZ SP5SJL -09
204300  +3  943  SP5SJL SP3JHZ R-06
204315  -9 1783  SP3JHZ SP5SJL RR73
204330  +2  943  SP5SJL SP3JHZ RR73
204515 -12 1783  LZ936BA SP5SJL KO02
175300 -15 1359  SP4VIT SP5SJL KO02
175345  -9 1617  SP5SJL SP4VIT RR73
175400 -10 1358  SP4VIT SP5SJL 73
190300  +0 1809  SP5SJL SP4VIT -04
190315 -11 1424  SP4VIT SP5SJL R-03
190330  -3 1809  SP5SJL SP4VIT RR73
190400  +4  565  SP5SJL DK8HC JO42 (x3)

10m

UTC    dB Audio  Message
113945 -19 1850  SP5SJL DN9MJK +22 (x2)
114545 -11 1029  SP5SJL YU4FQN +02
072400 -17 1447  SP5SJL M0MDS +04
072530 -14 1875  SP5SJL DJ0WO +25
164115  -8 1166  SP5SJL CR7BUJ -04 (x2)

60m

UTC    dB Audio  Message
182245  -9 1596  SP5SJL OZ1SMB JO54
182300  -7 1653  OZ1SMB SP5SJL -05
182315  -6 1596  SP5SJL OZ1SMB R-01
182330  -5 1652  OZ1SMB SP5SJL RR73
182345  -8 1596  SP5SJL OZ1SMB 73
182400  -5 1726  CQ SP5SJL KO02
182415  -1 1726  SP5SJL DD6ZV JO62
182430  +1 1726  DD6ZV SP5SJL -02
182445  -3 1726  SP5SJL DD6ZV R+06
182500  -3 1726  DD6ZV SP5SJL RR73
182515  +1 1726  SP5SJL DD6ZV 73
070615  -9 1752  SP2OSA SP5SJL KO02 (x2)
070700 -16 1536  SP5SJL SP2OSA RR73
070715 -13 1752  SP2OSA SP5SJL 73

160m

UTC    dB Audio  Message
201000  -4 1449  SP5SJL SA5ACL -12 (x5)
201815 -21 1935  CQ SP5SJL KO02
200000  +5 2185  SP5SJL RR73; SP6BCC <...> +20
203730 +11 1358  SP5SJL HF100PKP -11

20m

UTC    dB Audio  Message
192030  -1  373  SP5SJL XV9T -05 (x2)
121230 -18 1072  SP5SJL EG5ECL +00
182000  -6 1784  D2ACE SP5SJL KO02 (x6)
124530 -19 1719  SP5SJL R4FDW -02 (x2)
131200 -16 2105  SP5SJL II7MGBT -09
075300  +3  467  SP5SJL RI1FJL +00
075330  -5  467  SP5SJL RR73; JR7WFC <RI1FJL> -14
073445 -21 1212  SP5SJL IU4SQE -11

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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