SP5DFK/QRP — 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

Receiver-side FT8 activity involving SP5DFK/QRP, decoded by SO8OO in southeastern Poland. 3,440 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.

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 3,440 FT8 messages attributed to SP5DFK/QRP as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (90%), followed by 40 m (7%) and 60 m (3%). Most decodes (77%) 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

3,440

Messages attributed

UTC dates decoded

508

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 3,107 60m · 98 40m · 234 20m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-10-23 18:41 UTC

Observed FT8 message patterns

Attributed sample: 3,440 messages
Active dates: 57 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15.5 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 345, moderate (-15 to -9 dB) 825, strong (≥ -8 dB) 2,270.

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:

HF780C · Poland ×60 LY790A · Lithuania ×29 Z335MK · North Macedonia ×8 SX48JM · Greece ×3 OR80AF · Belgium ×3 YR26AB · Romania ×2 9A69AA · Croatia ×2 HA1RB · Hungary ×2 OH3OJ · Finland ×2 OT26B · Belgium ×2 SP5TAE · Poland ×2 SP90K · Poland ×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	SP5DFK/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 19:37	80m	- / -5	IZ2QPP	-6 / -	2	Partial capture
10-23 19:04	80m	- / +2	R5DT	+6 / -	2	Partial capture
10-23 19:01	60m	- / -	<...>	-11 / -	2	✓ Closing fragment
10-23 18:40	80m	-9 / -9	YO2LIM	+6 / -3	5	✓ Full exchange observed
10-23 18:38	80m	-12 / -	<...>	-5 / -	2	✓ Closing fragment
10-23 18:30	80m	- / -9	YO6CTF	+8 / -	3	Partial capture
10-23 18:24	80m	-11 / -	<...>	- / -	10	Partial capture
10-23 18:15	80m	+2 / -3	SP1CZA	-14 / -2	2	Partial capture
10-23 18:07	80m	-2 / -1	OK1WCF	+17 / +10	2	Partial capture
10-23 18:06	80m	-8 / -	SP9PLK	- / -	2	Partial capture
10-23 18:04	80m	0 / -	<...>	0 / -	14	✓ Closing fragment
10-23 18:02	80m	0 / -	SP5ROM	- / -16	2	Partial capture
10-23 18:00	80m	-3 / -3	UR5KC	+5 / -13	2	Partial capture
10-23 17:56	80m	-5 / -	<...>	+6 / -	8	✓ Closing fragment
10-23 17:53	80m	-8 / -13	F1MGE	-1 / -15	5	Partial capture
10-23 17:50	80m	-8 / -11	SQ5NO	-12 / -9	2	Partial capture
10-23 17:48	80m	-10 / -	<...>	-10 / -	7	✓ Closing fragment
10-23 16:10	80m	- / -10	OK2URW	+4 / -	2	Partial capture
10-23 15:50	80m	- / -	SP9WAZ	-12 / -	2	Partial capture
10-23 15:23	80m	- / -14	RA6ATZ	-10 / -	2	Partial capture
10-23 04:02	80m	- / -	R1CAA	-6 / -	2	Partial capture
10-23 03:38	80m	- / -2	SP6GCU	+7 / -	2	Partial capture
10-23 02:09	80m	- / -25	IZ2DVI	+16 / -	4	Partial capture
10-22 16:40	80m	- / -	SP3PLD	+15 / -	3	Partial capture
10-22 16:25	80m	-8 / -11	RA5AD	-3 / -1	2	Partial capture
10-22 16:22	80m	0 / -8	SP9UPH	+20 / +10	3	Partial capture
10-22 16:21	80m	-1 / -15	PA7ZZ	-1 / -8	4	Partial capture
10-22 16:18	80m	-3 / -	<...>	+4 / -	13	✓ Closing fragment
10-22 01:06	80m	-8 / -	CT2HEX	- / -7	2	Partial capture
10-22 00:24	80m	- / -	DO9BAU	+6 / -	12	Partial capture
10-21 22:42	80m	- / -9	I8OHQ	-10 / -	3	Partial capture
10-21 21:52	80m	- / -23	DK7UY	+4 / -	3	Partial capture
10-21 21:50	80m	- / -16	F1IQH	-13 / -	4	Partial capture
10-21 21:42	80m	- / -16	RU3SD	+13 / -	5	Partial capture
10-21 21:15	80m	- / -	DO5RBB	+4 / -	2	Partial capture
10-21 21:08	80m	- / -12	DO5RBB	-3 / -	2	Partial capture
10-21 21:02	80m	- / -3	DO9BAU	+8 / -	2	Partial capture
10-21 21:02	80m	- / -3	R5DK	+3 / -	3	Partial capture
10-21 19:38	80m	- / -	DO5PY	-4 / -	2	Partial capture
10-21 19:21	80m	- / -	DO9BAU	+10 / -	6	Partial capture
10-21 18:43	80m	- / -	DK1GP	-20 / -	2	Partial capture
10-21 18:43	80m	- / -	R4CHN	-16 / -	2	Partial capture
10-21 17:48	80m	- / +9	SP3LPT	-6 / -	2	Partial capture
10-21 17:44	80m	-9 / -	<...>	+2 / -	8	✓ Closing fragment
10-21 17:37	80m	-12 / -1	DO9SAM	0 / 0	2	Partial capture
10-21 17:36	80m	-10 / -	<...>	+10 / -	8	✓ Closing fragment
10-21 17:34	80m	-8 / -	RT2H	- / -	4	Partial capture
10-21 06:07	80m	- / -11	IS0LAY	-21 / -	2	Partial capture
10-21 05:44	80m	- / +10	HB9CEX	+10 / -	2	Partial capture
10-21 04:46	80m	- / -	DL1UDO	+5 / -	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
183930  -5 1441  SP5DFK/QRP <...> RR73
183945 -11 1439  <I8IGS> SP5DFK/QRP 73
184015 -13  928  <YO2LIM> SP5DFK/QRP
184030  +8  929  SP5DFK/QRP YO2LIM -09
184045  -8  928  YO2LIM SP5DFK/QRP R-03
184100  +3  929  SP5DFK/QRP YO2LIM RR73
184115  -7  928  YO2LIM SP5DFK/QRP 73
184145 -12  894  <...> SP5DFK/QRP
184315 -13 1502  SP5DFK/QRP R7NO -18
190445  +7 1127  SP5DFK/QRP R5DT KO94 (x2)
191345  -4 1649  SP5DFK/QRP SQ9LFQ R-16
193700  -7 1659  SP5DFK/QRP IZ2QPP JN46 (x2)
193815  +4 1871  SP5DFK/QRP IU3WOZ JN55

60m

UTC    dB Audio  Message
173945 +11  786  SP5DFK/QRP 9A2AA R+00
174930  +0 2435  SP5DFK/QRP <...> RR73 (x2)
175300  -2 1130  SP5DFK/QRP LZ2VQ KN23
183545  +1  458  SP5DFK/QRP IK4PLW JN64 (x3)
194730  +2 1043  SP5DFK/QRP DL2VN JO51
225845  -2 1047  SP5DFK/QRP DL1OBF JO42 (x2)
162700 -13 1769  SP5DFK/QRP <...> RR73 (x2)
171930 -14 1458  SP5DFK/QRP YO4BEW KN35
190145 -10 1763  SP5DFK/QRP <...> RR73 (x2)

40m

UTC    dB Audio  Message
054115  -3 1965  SP5DFK/QRP SP2IHI JO83
054115  -4 1530  SP5DFK/QRP DG3BZ JO31 (x2)
054215  -5 1966  SP5DFK/QRP SP2IHI JO83
054215  -5 1531  SP5DFK/QRP DG3BZ JO31
054245  -7 1965  SP5DFK/QRP SP2IHI JO83
054315  -5 1530  SP5DFK/QRP DG3BZ JO31
131700 -19 2097  SP5DFK/QRP F1PDX R-06
155515  -4 1040  SP5DFK/QRP <...> RR73 (x2)
182630  -8 1040  SP5DFK/QRP F4PAN +02 (x3)
225615  +3 1042  SP5DFK/QRP ON5VN -06 (x2)

10m

UTC    dB Audio  Message
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.

CW

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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