SP5C — 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 SP5C, decoded by SO8OO in southeastern Poland. 139 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-24.

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 139 FT8 messages attributed to SP5C as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (48%), followed by 40 m (27%) and 80 m (23%). Several six-hour UTC windows tied for the largest share (51%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.

Overview

139

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 67 80m · 32 60m · 1 40m · 38 20m · 1

First attributed message: 2026-06-10
Last attributed message: 2026-10-24 16:35 UTC

Observed FT8 message patterns

Attributed sample: 139 messages
Active dates: 8 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -14 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 92.

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 SP5C in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land ×2 DL8TV · Fed. Rep. of Germany F1PBZ · France G8OO · England SP7ENZ · Poland UX7QV · Ukraine YL2EA · Latvia XQ3SK · Chile 3W9T · Vietnam JH2FXK · Japan

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 SP5C

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 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 400 km (approx.)
Last such locator decoded: 2026-09-18 04:27 UTC

Other locator fields attributed to this token: KO02 (48).

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	SP5C S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-24 16:36	80m	- / +1	R2SN	-2 / -	2	Partial capture
10-24 16:34	80m	+14 / -	3W9T	- / -20	3	✓ Closing fragment
10-23 21:22	160m	-3 / -	7P8GE	- / -	5	Partial capture
10-23 21:19	160m	-7 / -	7P8GE	- / -	2	Partial capture
10-23 21:14	160m	-7 / -	7P8GE	- / -	6	Partial capture
10-19 17:28	60m	- / -	OZ2LP	-18 / -	4	Partial capture
10-19 17:24	60m	- / -	DD6ZV	+1 / -	7	Partial capture
10-19 05:56	40m	+2 / -	RK3YWS/P	- / -11	9	Partial capture
10-19 05:54	40m	-16 / -	FM/VE3DZ	- / -	2	Partial capture
10-19 04:59	80m	+18 / -	P4/WE9V	- / -18	2	Partial capture
10-19 04:56	80m	+19 / -	P4/WE9V	- / -	4	Partial capture
09-21 19:00	80m	+8 / -	RI1FJZ	- / -22	7	✓ Closing fragment
09-18 04:37	40m	- / -	US2UM	+4 / -	3	Partial capture
09-18 04:31	40m	- / -	UA3POG	-12 / -	2	Partial capture
09-18 04:27	40m	-23 / -	XQ3SK	- / -	2	✓ Closing fragment
09-18 04:09	160m	-12 / -	G8OO	- / -16	2	✓ Closing fragment
09-18 03:57	160m	-8 / -	V26OC	- / -	12	Partial capture
09-18 03:50	160m	-6 / -	V26OC	- / -	4	Partial capture
09-18 03:40	160m	-6 / -	V26OC	- / -	10	Partial capture
09-18 03:38	160m	-14 / -	W5GRP	- / -	2	Partial capture
09-18 03:35	160m	-13 / +2	DL8TV	-14 / -5	3	✓ Full exchange observed
09-18 03:33	160m	-6 / -4	F1PBZ	-3 / -13	7	✓ Full exchange observed
09-18 03:33	160m	-12 / -13	UX7QV	+4 / -2	5	✓ Full exchange observed
09-18 03:31	160m	-8 / -	SP7ENZ	-24 / -24	3	✓ Closing observed
09-18 03:30	160m	-4 / -1	YL2EA	-17 / -	5	✓ Full exchange observed
09-17 20:29	80m	+2 / -	JA0GCI	- / -	4	Partial capture
09-17 20:26	80m	- / -	UR4QWW	-6 / -	4	Partial capture
09-17 20:24	80m	-6 / -16	JH2FXK	-24 / +2	5	✓ Full exchange observed
09-17 20:21	80m	-3 / -	JA8JNU	- / -	6	Partial capture
09-17 20:18	80m	-6 / -	JH1FSB	- / -	3	Partial capture
09-17 20:04	160m	-14 / -	RI1FJZ	- / -12	4	✓ Closing fragment
09-17 19:10	40m	- / -5	RX9ABI	-5 / -	3	Partial capture
09-17 19:01	40m	- / +2	II0IHMG	-6 / -	3	Partial capture
09-17 18:57	40m	-8 / -	SV2FNT	- / -	2	Partial capture
09-01 17:45	40m	-2 / -	RI1FJL	- / -22	11	Partial capture
09-01 17:33	40m	+4 / -	RI1FJL	- / -	5	Partial capture
09-01 17:26	40m	+5 / -	RI1FJL	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
190245  +7 1613  RI1FJZ SP5C R-22 (x3)
045600 +19 2412  P4/WE9V SP5C KO02 (x6)
163445 +13 1489  3W9T SP5C KO02 (x3)
163600 -15 1108  SP5C DK5OPA JO30
163630  -2 1875  SP5C R2SN +01 (x2)

160m

UTC    dB Audio  Message
040945 -11 2327  G8OO SP5C -16 (x2)
211445  -9 1402  7P8GE SP5C KO02 (x13)

60m

UTC    dB Audio  Message
172430 -15 2133  CQ SP5C KO02
172445 -10 1132  SP5C OZ2LP JO55
172445  +0 2132  SP5C DD6ZV JO62 (x2)
172545 -23 1466  SP5C SP1RKT JO84
172545  +3 2132  SP5C DD6ZV JO62 (x5)
172845 -18 2132  SP5C OZ2LP JO55 (x4)

40m

UTC    dB Audio  Message
043730  +7 1355  SP5C US2UM KO50 (x3)
055415 -17 1010  FM/VE3DZ SP5C KO02 (x2)
055645  +7 1022  RK3YWS/P SP5C KO02 (x7)
060000 -14 2482  SP5C FM/VE3DZ -10
060015  +2 1022  RK3YWS/P SP5C R-11 (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.

CW

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

Explore CW reception at SO8OO

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