SP6CA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO80

Receiver-side FT8 activity involving SP6CA, decoded by SO8OO in southeastern Poland. 599 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.

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 599 FT8 messages attributed to SP6CA as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (94%), followed by 20 m (6%). The busiest six-hour window was 17:00-23:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -1 dB.

Overview

599

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

40m · 562 20m · 37

First attributed message: 2026-06-06
Last attributed message: 2026-09-15 06:04 UTC

Observed FT8 message patterns

Attributed sample: 599 messages
Active dates: 22 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -17 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 430.

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 SP6CA in decoded directed-looking exchanges:

EK1KE · Armenia ×2 HZ1TT · Saudi Arabia ×2 RK4FF · European Russia ×2 RN6MA · European Russia ×2 UA9SY · Asiatic Russia ×2 7Z1BM · Saudi Arabia 7Z1BQ · Saudi Arabia A71UN · Qatar CR7BUJ · Portugal DB1EF · Fed. Rep. of Germany DG5PW · Fed. Rep. of Germany DK3HV · 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 SP6CA

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: JO80 · 319 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 347 km (approx.)
Last such locator decoded: 2026-09-15 06:04 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	SP6CA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 03:41	40m	- / -4	RC9WC	-19 / -	3	Partial capture
09-17 03:34	40m	- / -3	9H4JX	-16 / -	2	✓ Closing fragment
09-17 00:51	40m	- / -	EA3GEH	-16 / -	4	✓ Closing fragment
09-17 00:09	40m	- / -12	HZ1TT	-1 / -	3	✓ Closing fragment
09-15 06:03	40m	+2 / -	W4WFC	- / -	2	Partial capture
09-13 04:13	40m	- / -3	OH3OJ	-1 / -	2	Partial capture
09-13 04:05	40m	- / -5	US3EW	+4 / -	3	✓ Closing fragment
09-13 01:47	40m	- / -11	HK3ZM	-6 / -	2	✓ Closing fragment
09-13 01:44	40m	- / -5	RO6G	-11 / -	2	Partial capture
09-13 01:11	40m	- / -2	W3ACW	-18 / -	2	✓ Closing fragment
09-13 00:24	40m	- / 0	W1ATV	-3 / -	4	✓ Closing fragment
09-13 00:22	40m	- / -7	N4NF	-14 / -	2	Partial capture
09-12 19:04	40m	-3 / -19	CN8NS	-10 / -7	9	✓ Full exchange observed
09-12 05:01	40m	- / -1	F4BYA	+2 / -	3	Partial capture
09-12 04:55	40m	- / -	DC9TS	-12 / -	2	Partial capture
09-12 01:11	40m	- / +1	W3DIY	-12 / -	3	Partial capture
09-12 00:55	40m	- / -3	UA9SY	-4 / -	3	✓ Closing fragment
09-12 00:20	40m	- / +6	KC0MPD	-7 / -	4	Partial capture
09-12 00:05	40m	- / +8	F4ACR	-13 / -	3	✓ Closing fragment
09-11 05:17	40m	-17 / -6	R3KLE	-18 / -5	4	✓ Full exchange observed
09-11 05:05	40m	- / -	US3EW	-6 / -	2	Partial capture
09-11 04:25	40m	- / -	F4IIX	+2 / -	4	Partial capture
09-11 03:57	40m	- / -7	HK3YL	-20 / -	2	✓ Closing fragment
09-11 03:53	40m	- / -19	RQ6B	-12 / -	5	✓ Closing fragment
09-11 03:48	40m	- / -7	RK4FF	-8 / -	2	✓ Closing fragment
09-11 03:37	40m	- / -	F4BYA	-4 / -	2	Partial capture
09-11 03:25	40m	- / -7	RK4FF	-6 / -	3	Partial capture
09-10 23:56	40m	- / -15	EU1KI	-13 / -	2	Partial capture
09-09 17:51	40m	+6 / -	ZL1VAH	- / -19	5	✓ Closing fragment
09-09 15:50	40m	+3 / +4	OZ5AGJ	-13 / 0	5	✓ Full exchange observed
09-09 15:25	40m	- / -	PD1BER	-14 / -	12	Partial capture
09-09 15:23	40m	0 / -	SP7QAA	- / -7	2	✓ Closing fragment
09-09 15:20	40m	+4 / -	SO100PKP	- / -	2	Partial capture
09-09 15:19	40m	+3 / -	R73SLET	- / +3	3	Partial capture
09-08 22:13	40m	- / -	UR4QWW	-19 / -	3	Partial capture
09-08 22:10	40m	- / -11	8Z1IT	-10 / -	3	✓ Closing fragment
09-07 21:37	40m	-8 / -	JA6RCH	- / -14	2	✓ Closing fragment
09-07 21:35	40m	-4 / -	PI4TX	-8 / -6	5	✓ Full exchange observed
09-07 21:31	40m	-7 / -	EA8UP	- / -	3	Partial capture
09-07 21:30	40m	-5 / -	VJ6X	-19 / -16	4	✓ Closing observed
09-07 21:27	40m	-4 / -	7Z1TT	- / -	6	Partial capture
09-07 21:25	40m	-5 / -	KB1EFS	- / -19	3	✓ Closing fragment
09-06 00:05	40m	- / -	EA3HMM	-2 / -	3	Partial capture
09-05 23:57	40m	- / -3	F1IQH	-16 / -	2	Partial capture
09-05 20:06	40m	- / -	LY4Q	-12 / -	2	✓ Closing fragment
09-05 20:05	40m	-1 / +5	T77R	0 / -9	4	✓ Full exchange observed
09-05 01:00	40m	- / 0	NE9U	-20 / -	3	Partial capture
09-05 00:39	40m	- / -	KN0BLE	-18 / -	2	Partial capture
09-04 23:38	40m	- / -6	WA6VZN	-10 / -	3	✓ Closing fragment
09-04 22:57	40m	- / +3	M0ENG	-14 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
041415  -1  663  SP6CA OH3OJ +00
060330  +1 1760  W4WFC SP6CA JO80 (x2)
000930  -2 1729  SP6CA HZ1TT -12 (x3)
005115 -14 1739  SP6CA EA3GEH JN01 (x4)
033400 -20 1909  SP6CA 9H4JX -03 (x2)
034130 -20 2069  SP6CA RC9WC -04 (x3)

10m

UTC    dB Audio  Message
102345  -8 2785  SP6CA EX8ABQ -17

20m

UTC    dB Audio  Message
103015 -17 1368  SP6CA HA1ZW 73
103245  +5 1565  SP6CA UT7UJ +10 (x2)
104100  -7 1565  CQ SP6CA JO80 (x2)
102630 -11 2280  SP6CA DJ1TU JN48
195345  +0 1564  SP6CA RK3AF -11 (x2)
213415 -22 1564  SP6CA F8KIC/P JN29
200230  +1 2818  SP6CA F4BYA JN19
193815  +1 1007  SP6CA SM3JBO -05 (x2)
141545  -6 2016  SP6CA UN7PNF -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.

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