SP5DFK/QRP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SP5DFK/QRP, decoded by SO8OO in southeastern Poland. 2,398 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 42 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-07.

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 2,398 FT8 messages attributed to SP5DFK/QRP as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (87%), followed by 40 m (9%) and 60 m (4%). Most decodes (74%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5 dB.

Overview

2,398

Messages attributed

UTC dates decoded

355

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 2,085 60m · 86 40m · 226 20m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-10-07 06:09 UTC

Observed FT8 message patterns

Attributed sample: 2,398 messages
Active dates: 42 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15.9 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 245, moderate (-15 to -9 dB) 566, strong (≥ -8 dB) 1,587.

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 SP5DFK/QRP in decoded directed-looking exchanges:

LY790A · Lithuania ×29 HF780C · Poland ×27 Z335MK · North Macedonia ×8 SX48JM · Greece ×3 SP5TAE · Poland ×2 SP90K · Poland ×2 UX7BM · Ukraine ×2 DO1SWC · Fed. Rep. of Germany DM2DZM · Fed. Rep. of Germany YR26AB · Romania DL7UKM · Fed. Rep. of Germany EU1KY · Belarus

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	SP5DFK/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 06:08	40m	- / -4	EW2GI	-7 / -	3	Partial capture
10-07 04:13	80m	- / -	F4IDN	-9 / -	3	Partial capture
10-07 03:28	80m	- / -12	SP3HUU	+12 / -	5	Partial capture
10-07 00:31	80m	- / -	GM4KHE	-20 / -	2	Partial capture
10-06 23:44	80m	- / -3	9A4AA	+7 / -	3	Partial capture
10-06 23:37	80m	- / -	9A4ZM	+10 / -	2	Partial capture
10-06 22:26	80m	- / -2	PA3GDL	+5 / -	2	Partial capture
10-06 22:22	80m	- / -	DL3YAZ	-14 / -	2	Partial capture
10-06 22:13	80m	- / -3	DA6BR	-6 / -	2	Partial capture
10-06 20:37	40m	- / -	DL3JHK	-13 / -	2	Partial capture
10-06 20:35	40m	- / -12	HA1BF	-11 / -	2	Partial capture
10-06 20:34	80m	- / -9	SP9TBT	+4 / -	3	Partial capture
10-06 20:33	80m	- / +4	DF1IH	+7 / -	3	Partial capture
10-06 20:09	80m	-7 / -	<...>	- / -	3	Partial capture
10-06 19:52	80m	- / -9	R1TAX	-7 / -	2	Partial capture
10-06 19:49	80m	- / -13	EA2EJO	-16 / -	2	Partial capture
10-06 19:30	80m	- / -12	I8IGS	0 / -	2	Partial capture
10-06 19:26	80m	- / -	IK5CHL	+4 / -	2	Partial capture
10-06 19:08	80m	-1 / -	<...>	- / -	3	✓ Closing fragment
10-06 19:04	80m	- / -	ES6DO	-2 / -	2	Partial capture
10-06 18:59	80m	-8 / -13	YO3AI	-10 / -15	2	Partial capture
10-06 18:59	80m	-8 / -	<...>	-8 / -	4	✓ Closing fragment
10-06 18:51	80m	-2 / -	OZ7HAM	- / -	2	Partial capture
10-06 18:51	80m	+1 / -	<...>	0 / -	3	✓ Closing fragment
10-06 18:49	80m	-7 / -	R6HV	- / -5	2	Partial capture
10-06 18:27	80m	- / -	HA8UM	+5 / -	4	Partial capture
10-06 18:21	80m	-15 / -	<...>	+6 / -	4	✓ Closing fragment
10-06 18:15	80m	-10 / -	<...>	-11 / -	5	✓ Closing fragment
10-06 18:13	80m	- / +10	R2AL	+14 / -	2	Partial capture
10-06 18:09	80m	- / -	R2AL	+13 / -	3	Partial capture
10-06 18:04	80m	- / -	R2AL	+12 / -	4	Partial capture
10-06 17:42	80m	- / -	RA1QCX	-8 / -	2	Partial capture
10-06 17:41	80m	- / -17	UA4FEN	-20 / -	2	Partial capture
10-06 17:33	80m	- / -3	R2AL	+12 / -	2	Partial capture
10-06 16:19	80m	-18 / -1	SP9DWT	-5 / +2	2	Partial capture
10-06 16:14	80m	- / -16	SP5IDR	+5 / -	3	Partial capture
10-06 15:45	80m	- / -5	R2AL	-1 / -	11	Partial capture
10-06 15:12	80m	- / -	R2AL	-5 / -	3	Partial capture
10-06 14:30	80m	- / +5	RY4C	-14 / -	2	Partial capture
10-06 12:13	80m	- / -	DO1SJF	-24 / -	2	Partial capture
10-06 05:49	80m	-4 / -4	HA7XL	+10 / -6	8	Partial capture
10-06 04:27	80m	- / -15	F4FSY	0 / -	3	Partial capture
10-06 04:02	80m	- / -14	F5MOO	+8 / -	2	Partial capture
10-06 03:56	80m	- / -22	F5MOO	+9 / -	4	Partial capture
10-06 03:53	80m	- / -5	S52D	+13 / -	2	Partial capture
10-06 03:52	80m	-2 / -5	UA3ZUX	-7 / +7	2	Partial capture
10-06 03:47	80m	-3 / -	<...>	+1 / -	12	✓ Closing fragment
10-06 03:45	80m	-11 / -24	Z61DX	-10 / -3	5	✓ Full exchange observed
10-06 03:45	80m	- / -13	HB9AWS	+2 / -	2	Partial capture
10-06 03:41	80m	-20 / -	<...>	+3 / -	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
073430  -6 1551  SP5DFK/QRP SP7JMJ R JO92
101715 -17  931  SP5DFK/QRP DL7UKT JO62 (x2)
102115 -24 1627  SP5DFK/QRP UA6AAW R-08
103745 -15  834  SP5DFK/QRP IZ2ARJ R-09
195200  -5 1510  SP5DFK/QRP <...> RR73
203500 -11 1510  SP5DFK/QRP HA1BF -12 (x2)
203715 -15 1510  SP5DFK/QRP DL3JHK JO62 (x2)
053730 -14 1514  SP5DFK/QRP DH5IS JN49
060800  -6 1514  SP5DFK/QRP EW2GI KO43 (x3)
060930 -10 1514  YR26AB SP5DFK/QRP 73

80m

UTC    dB Audio  Message
233745 +12 1806  SP5DFK/QRP 9A4ZM JN86 (x2)
234445  +8  787  SP5DFK/QRP 9A4AA JN75 (x3)
003145 -17 1022  SP5DFK/QRP GM4KHE IO75 (x2)
032815 +13 1973  SP5DFK/QRP SP3HUU JO71 (x5)
041315 -10 2115  SP5DFK/QRP F4IDN IN97 (x3)

60m

UTC    dB Audio  Message
204415  -6  355  SP5DFK/QRP IW2CAK R-04
204545  -7  671  SP5DFK/QRP G7RTI IO91 (x7)
205615 -21 1815  SP5DFK/QRP OH1LA KP01 (x4)
192945  +7 2429  SP5DFK/QRP <...> RR73
193345 -12  392  <...> SP5DFK/QRP (x2)

10m

UTC    dB Audio  Message
094230  -8 1045  SP5DFK/QRP <DO1SWC> RR73
102930 -19 1612  SP5DFK/QRP <...> RR73

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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