SP100PKP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SP100PKP, decoded by SO8OO in southeastern Poland. 5,067 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 20 UTC dates in the available aggregate history. Observed between 2026-09-01 and 2026-09-20.

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 5,067 FT8 messages attributed to SP100PKP as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 80 m (41%) and 160 m (5%). Decoded messages were spread across the UTC day; the busiest six-hour window (04:00-10:00 UTC) held 34% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +2.9 dB.

Overview

5,067

Messages attributed

UTC dates decoded

426

Active 15-min windows

+2.9 dB

Estimated median S/N

Bands

160m · 238 80m · 2,098 40m · 2,731

First attributed message: 2026-09-01
Last attributed message: 2026-09-20 06:54 UTC

Observed FT8 message patterns

Attributed sample: 5,067 messages
Active dates: 20 UTC dates
Estimated median S/N: +2.9 dB
Estimated 10th-90th percentile: -11.9 to +19 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 241, moderate (-15 to -9 dB) 632, strong (≥ -8 dB) 4,194.

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 SP100PKP in decoded directed-looking exchanges:

AO77R · Spain ×35 Z335MK · North Macedonia ×17 LY790A · Lithuania ×16 HF780C · Poland ×9 K1ABC · United States ×6 SX48JM · Greece ×4 R440L · Asiatic Russia ×3 SP90K · Poland ×3 DL7UKM · Fed. Rep. of Germany ×2 8Z96ND · Saudi Arabia ×2 DL1EDR · Fed. Rep. of Germany ×2 EO100W · Ukraine ×2

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.

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	SP100PKP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 13:23	40m	- / -6	IV3SKB	-10 / -	6	Partial capture
09-20 10:13	40m	- / -4	SP2GRP	-4 / -	2	Partial capture
09-20 08:53	40m	- / -17	9A4FM	-13 / -	2	Partial capture
09-20 08:04	40m	- / -18	YO6BGT	+2 / -	4	Partial capture
09-20 06:54	40m	-15 / -5	DH0BRO	-6 / 0	3	Partial capture
09-20 06:49	40m	- / -	DH0BRO	-8 / -	3	Partial capture
09-20 06:36	40m	- / -	ON1BMM	-13 / -	2	Partial capture
09-20 06:22	40m	-14 / -6	YO4NT	+1 / -19	4	Partial capture
09-20 06:18	80m	- / -	DO2NM	-13 / -	11	Partial capture
09-20 06:10	80m	- / -5	HA1TAB	+5 / -	3	Partial capture
09-20 06:10	80m	+11 / -5	UR5TOC	0 / -2	3	Partial capture
09-20 06:05	80m	+11 / -	LY7Z	-2 / +2	2	Partial capture
09-20 06:05	80m	+10 / -	<...>	+4 / -	10	✓ Closing fragment
09-20 06:03	40m	- / -	DL1FAM	+7 / -	5	Partial capture
09-20 06:02	80m	- / -8	SP9SOS	-5 / -	3	Partial capture
09-20 05:57	80m	-11 / -	DL8WEM	-10 / +8	3	Partial capture
09-20 05:56	80m	-10 / -10	YT1DDL	-17 / -14	3	Partial capture
09-20 05:55	80m	-10 / -	<...>	+3 / -	12	✓ Closing fragment
09-20 05:30	40m	- / -8	ES6RMR	-12 / -	2	Partial capture
09-20 04:23	80m	- / -2	DL9OHA	+9 / -	4	Partial capture
09-20 03:46	80m	- / +2	SV8DCY	+16 / -	3	Partial capture
09-20 03:27	80m	- / +8	SP9IZV	+15 / -	4	Partial capture
09-20 03:19	80m	- / -5	DJ4WM	+2 / -	2	Partial capture
09-20 03:16	80m	- / -22	EA2DYB	-4 / -	2	Partial capture
09-20 03:10	80m	- / -13	IK4TVP	0 / -	2	Partial capture
09-20 01:26	40m	- / -5	R8CKD	-9 / -	4	Partial capture
09-19 22:46	40m	- / -16	LZ1BK	-8 / -	3	Partial capture
09-19 22:39	40m	- / -9	G3WRO	-12 / -	2	Partial capture
09-19 22:37	80m	- / -	SP4WJ	-11 / -	4	Partial capture
09-19 22:32	80m	+16 / -	<...>	+6 / -	6	✓ Closing fragment
09-19 22:28	80m	+19 / +9	MW7RHR	-13 / -15	3	Partial capture
09-19 22:25	80m	+18 / -2	UX2QX	-13 / -12	3	Partial capture
09-19 22:21	80m	+16 / -	EB5CS	- / -10	2	Partial capture
09-19 22:18	80m	+16 / -	<...>	+8 / -	2	✓ Closing fragment
09-19 22:16	80m	-3 / -2	ON4MAP	-10 / -15	3	Partial capture
09-19 22:15	80m	- / -9	DK2FM	+10 / -	2	Partial capture
09-19 22:13	80m	+17 / -	<...>	0 / -	5	✓ Closing fragment
09-19 22:11	80m	- / -	ON4MAP	-12 / -	4	Partial capture
09-19 22:10	80m	+15 / -7	DO2MWS	+13 / -	9	Partial capture
09-19 22:07	80m	+17 / -	<...>	+19 / -	2	✓ Closing fragment
09-19 22:03	80m	+20 / -	<...>	- / -	3	✓ Closing fragment
09-19 22:01	80m	+21 / -	DL2AOM	- / -12	2	Partial capture
09-19 21:58	80m	+18 / -	EA3GCT	- / -8	2	Partial capture
09-19 21:54	80m	- / -	CT1APN	-22 / -	2	Partial capture
09-19 21:54	80m	+19 / +1	YT5DL	+10 / -1	3	Partial capture
09-19 21:54	80m	- / -	SP4WJ	-5 / -	15	Partial capture
09-19 21:54	80m	+16 / -	<...>	+12 / -	8	✓ Closing fragment
09-19 21:50	80m	+12 / -	<...>	-2 / -	4	✓ Closing fragment
09-19 21:48	80m	+22 / +1	DL1RAZ	-4 / -	3	Partial capture
09-19 21:46	80m	+16 / -	<...>	+4 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
080215 -18 1546  SP100PKP IK8DYE R-11
080445  +2 2006  SP100PKP YO6BGT KN26 (x4)
085315 -15 1257  SP100PKP 9A4FM JN95 (x2)
101315  -5 2007  SP100PKP SP2GRP JO94 (x2)
132345 -14 1808  SP100PKP IV3SKB JN66 (x6)

80m

UTC    dB Audio  Message
061530 -12 1508  CQ SP100PKP (x4)
061815 -13 1608  SP100PKP DO2NM JO50 (x11)

160m

UTC    dB Audio  Message
203545 -13 2334  SP100PKP SP8OBQ R-19
203630  +5 2334  <...> SP100PKP RR73
203645 -18 1522  SP100PKP <...> 73
203700  -8 2334  CQ SP100PKP (x2)
203745  +6 2334  SP100PKP SP9CLQ KO00
203800  +0 2334  SP9CLQ SP100PKP -01
203815 +10 2334  SP100PKP SP9CLQ R-01
203900  -8 2334  <...> SP100PKP RR73
203915 -17 1894  SP100PKP <...> 73
033400 -17 2194  SP100PKP DL8TV -14
183130  -4 1896  SP100PKP RZ6CO LN04 (x4)

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