SP8OC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KN19

Receiver-side FT8 activity involving SP8OC, decoded by SO8OO in southeastern Poland. 149 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-06.

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 149 FT8 messages attributed to SP8OC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (30%) and 10 m (5%). Most decodes (54%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +4 dB.

Overview

149

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

80m · 93 40m · 44 20m · 5 10m · 7

First attributed message: 2026-06-17
Last attributed message: 2026-09-06 20:35 UTC

Observed FT8 message patterns

Attributed sample: 149 messages
Active dates: 7 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -9 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 133.

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 SP8OC in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×3 IZ5PFI · Italy ON5CD · Belgium SV1CQN · Greece T77RN · San Marino UR8EP · Ukraine CN2DX · Morocco F5RRS · France IN3IZQ · Italy XQ3SK · Chile YU1JB · Serbia DF1KG · Fed. Rep. of Germany

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 SP8OC

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: KN19 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 100 km (approx.)
Last such locator decoded: 2026-09-03 04:05 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	SP8OC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-06 20:45	40m	- / -15	R2EA	+5 / -	2	Partial capture
09-06 20:34	80m	+17 / -	JA4TKY	- / -11	3	Partial capture
09-06 20:29	80m	+16 / -	DL9KM	- / -18	10	✓ Closing fragment
09-06 20:26	80m	+16 / -	JA5MHD	- / -13	3	Partial capture
09-06 20:24	80m	+18 / -4	OH1LA	0 / -7	7	✓ Full exchange observed
09-05 05:17	80m	+14 / -	OZ7FOC	- / -22	5	Partial capture
09-05 05:15	80m	+18 / -8	S57NCP	-4 / -	3	✓ Closing observed
09-05 05:08	40m	- / -2	DL8TV	+8 / -	5	✓ Closing fragment
09-03 04:20	40m	- / -5	F4CVQ	+12 / -	2	✓ Closing fragment
09-03 04:18	80m	+11 / -	K9US	- / -16	4	Partial capture
09-03 04:16	80m	+8 / -	F4FQY	- / -12	2	✓ Closing fragment
09-03 04:12	80m	-3 / -12	DO5WG	+5 / -5	5	✓ Full exchange observed
09-03 04:12	80m	+13 / -13	F5MYK	-13 / -12	8	✓ Full exchange observed
09-03 04:11	80m	+2 / -	SV8LMQ	- / -8	2	✓ Closing fragment
09-03 04:08	80m	+8 / -8	F5RMK	-12 / -5	4	✓ Full exchange observed
09-03 04:05	80m	+14 / -7	F5HNQ	-18 / -3	5	✓ Full exchange observed
09-03 04:03	80m	+12 / -	M0MDR	- / -7	3	Partial capture
09-03 04:00	40m	- / -	RV6F	-19 / -	3	Partial capture
09-03 03:59	80m	+13 / +8	SP6JIU	+23 / +4	7	✓ Full exchange observed
09-03 03:55	40m	- / -11	K4YT	-6 / -	2	✓ Closing fragment
08-22 04:47	80m	+14 / -	SP3HGD	- / -9	7	Partial capture
07-27 09:29	10m	- / +4	SV1CQN	-6 / -	2	✓ Closing fragment
07-27 09:27	10m	- / -19	ON5CD	-2 / -	2	✓ Closing fragment
07-25 14:28	20m	- / -4	CN2DX	-8 / -	2	✓ Closing fragment
07-18 17:30	20m	- / -2	F5RRS	-6 / -	3	✓ Closing fragment
07-18 17:27	20m	- / -5	YU1JB	-11 / -	2	✓ Closing fragment
07-18 17:23	10m	- / +1	IZ0CLP	-2 / -	2	Partial capture
07-18 17:20	10m	- / +2	IZ5PFI	+7 / -	2	✓ Closing fragment
07-16 23:38	40m	- / -	DL9KM	-9 / -	5	✓ Closing fragment
07-16 23:37	40m	- / -10	F6BHK	0 / -	2	Partial capture
07-15 04:58	40m	- / -8	DF1KG	-16 / -	2	✓ Closing fragment
07-08 09:02	10m	- / -3	UR8EP	-19 / -	5	✓ Closing fragment
06-30 22:08	80m	- / -	UA4FKT	-7 / -	3	Partial capture
06-24 09:12	10m	- / -	T77RN	+1 / -	2	✓ Closing fragment
06-24 05:32	40m	- / +1	YL3AKH	-7 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
035530  -6 2690  SP8OC F5OYA/P JN13
040030 -21 1353  SP8OC RV6F LN14 (x3)
042045 +13  373  SP8OC F4CVQ R-05 (x2)
050815  +4 2440  SP8OC DL8TV JN49 (x5)
201000  +0 2434  SP8OC R2EA -10
201900 -13 1330  SP8OC YO4DWD R-14
204545  +6 2433  SP8OC R2EA -15 (x2)

80m

UTC    dB Audio  Message
202815  -2 1820  SP8OC OH1LA 73
202900 +13 2836  DL9KM SP8OC -18 (x10)
203400 +18 2836  CT7AUT SP8OC -15
203430 +20 2836  JA4TKY SP8OC -11 (x3)

10m

UTC    dB Audio  Message
090200 -14 1079  SP8OC RR73; 2E0TZW <...> -08
090230 -16 1747  SP8OC UR8EP KN68 (x5)
172045  +7 2917  SP8OC IZ5PFI R+02 (x2)
172345  -2  309  SP8OC IZ0CLP R+01 (x2)
175900  -8 2788  SP8OC 9A4ZM JN86
092730  -2 2615  SP8OC ON5CD R-19 (x2)
092915  -5  643  SP8OC SV1CQN R+04 (x2)

20m

UTC    dB Audio  Message
224630 -24 1739  SP8OC XQ3SK 73
172715 -13 1521  SP8OC YU1JB R-05 (x2)
173045 -19 1645  SP8OC IN3IZQ 73
173045  +2 1991  SP8OC F5RRS JN36 (x3)
061145 -13 1181  SP8OC DL6UM R-03
142830  -8 1779  SP8OC CN2DX R-04 (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.

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