K4PRO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: EL87

Receiver-side FT8 activity involving K4PRO, decoded by SO8OO in southeastern Poland. 392 related FT8 messages, 57 CQ messages, observed on 160m, 80m, 40m, 20m, across 33 UTC dates. Heard between 2026-05-26 and 2026-08-23.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

392

Related messages

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

80m 40m 20m 160m

First seen: 2026-05-26
Last seen: 2026-08-23 16:20 UTC

Frequent QSO partners observed at SO8OO

Stations K4PRO worked most often, as logged from our receiver:

F1PBZ · France ×3 LB5JK · Norway ×2 N8PFK · United States ×2 RD3FY · European Russia 7Z1DM · Saudi Arabia DL9MCS · Fed. Rep. of Germany PD1LVK · Netherlands EA5JHE · Spain HB9EFK · Switzerland HB9SZV · Switzerland F4LNM · France TA3TK · Asiatic Turkey

Activity Heatmap

Locator transmitted by K4PRO

Approximate centre of EL87, decoded 2026-08-21 00:18 UTC. A transmitted locator is not proof of the operator's permanent location.

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	K4PRO S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 18:19	20m	- / -	M9LHX	-12 / -	2	Partial capture
08-23 04:29	40m	-3 / -	IT9VCE	-8 / -8	2	Partial capture
08-23 04:29	40m	- / -	DG5AAG	+2 / -	5	Partial capture
08-23 04:29	40m	- / -	DL8TV	+4 / -	4	Partial capture
08-23 04:28	40m	- / -	IN3WZS	+11 / -	10	Partial capture
08-23 04:26	40m	-6 / -6	F1PBZ	+8 / -13	3	✓ Full exchange observed
08-22 00:44	20m	-14 / -	BH1OHX	- / -30	3	Partial capture
08-21 02:58	160m	- / -	G8MIA	-12 / -	4	Partial capture
08-21 02:53	40m	+2 / -	PD1WMD	- / -17	2	Partial capture
08-21 02:52	40m	- / -11	R3KED	+2 / -	2	Partial capture
08-21 02:51	40m	- / -	R3WDW	-3 / -	2	Partial capture
08-21 02:51	40m	+3 / -	W9CSO	- / -16	2	✓ Closing fragment
08-21 02:51	40m	- / -	RJ6L	-8 / -	2	Partial capture
08-21 02:49	40m	- / -	RD3FY	-7 / -	3	Partial capture
08-21 02:49	40m	+2 / -5	SV8GXC	0 / -18	7	✓ Full exchange observed
08-21 02:48	40m	+4 / -	F5NBU	- / +3	2	✓ Closing fragment
08-21 00:19	20m	+8 / -	KE7AGC	- / -9	2	✓ Closing fragment
08-21 00:16	20m	+10 / -	7Z1DM	- / -20	2	✓ Closing fragment
08-21 00:15	20m	+9 / -	CE8VSO	- / -14	3	✓ Closing fragment
08-21 00:13	20m	+10 / -	KK4MQM	- / -9	2	✓ Closing fragment
08-21 00:11	20m	+4 / -	NZ7L	- / -12	2	✓ Closing fragment
08-21 00:10	20m	-3 / -	KM6CWV	- / -18	2	✓ Closing fragment
08-21 00:06	20m	+5 / -	KE7IN	- / -17	3	✓ Closing fragment
08-16 23:01	20m	-10 / -	NM7D	- / -19	2	✓ Closing fragment
08-16 22:58	20m	-12 / -	R3EDI	-8 / -	2	✓ Closing observed
08-16 22:58	20m	-12 / -	SP5AA	-6 / -	7	✓ Full exchange observed
08-16 22:56	20m	-4 / -	KB9RCA	- / -	2	✓ Closing fragment
08-16 11:25	20m	- / -	DG8LBB	-11 / -	3	Partial capture
08-16 11:24	20m	- / -5	PD5N	-11 / -	2	✓ Closing fragment
08-16 11:23	20m	- / -	EW2AAA	+3 / -	2	Partial capture
08-16 11:23	20m	- / -5	ES2AJ	-20 / -	2	✓ Closing fragment
08-16 11:22	20m	- / -	PD8L	-12 / -	3	Partial capture
08-15 07:23	20m	- / -	M0LAD	-6 / -	2	Partial capture
08-15 03:14	80m	- / -14	OH1MLZ	+5 / -	3	✓ Closing fragment
08-15 03:08	80m	- / -5	US8UX	-10 / -	2	Partial capture
08-15 00:28	80m	-24 / -12	HB9EFK	+5 / -	3	✓ Closing observed
08-14 08:15	20m	- / -13	IZ2ZOZ	+1 / -	3	✓ Closing fragment
08-14 08:15	20m	-12 / -	DL9MCS	-6 / -1	3	✓ Closing observed
08-14 08:13	20m	- / -	PA2WDR	-24 / -	2	Partial capture
08-14 08:13	20m	-12 / -	ES0IA	- / -	2	✓ Closing fragment
08-14 08:08	20m	-11 / -	PD1HBL	- / -5	2	✓ Closing fragment
08-14 07:45	20m	- / -14	RW3PL	-8 / -	2	Partial capture
08-14 07:36	20m	- / -2	PA0LDE	-15 / -	4	✓ Closing fragment
08-13 23:35	20m	-4 / -	IU3VGK	- / -16	2	Partial capture
08-13 23:28	20m	-3 / -	DM2FK	- / -14	2	✓ Closing fragment
08-13 23:27	20m	-3 / -	IZ5MJO	- / -14	2	✓ Closing fragment
08-13 22:06	20m	+2 / -	UX1VT	- / -10	2	✓ Closing fragment
08-13 22:05	20m	+2 / -	HB9SZV	- / -6	2	✓ Closing fragment
08-12 03:17	20m	-2 / -	UA6LCF	- / -20	5	✓ Closing fragment
08-12 03:16	20m	-4 / -	KA3ZKX	- / -17	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
001645  +9 2755  7Z1DM K4PRO 73
001715  +3 2755  CE8VSO K4PRO RR73
001815  +8 2817  CQ K4PRO EL87 (x2)
001915  +8 2817  KE7AGC K4PRO -09 (x2)
101415 -20 2127  K4PRO PD0LK JO21
004415 -17 1027  BH1OHX K4PRO R-30 (x3)
004700  -7 1026  K4PRO RD6OB KN98
181915 -10 2974  N3ZZU K4PRO +10
181930 -13  715  K4PRO M9LHX JO01
181930 -21 2155  K4PRO M8KKH JO01
182000 -10  714  K4PRO M9LHX JO01

40m

UTC    dB Audio  Message
042945  +0 1817  K4PRO DG5AAG JO51
042945  +1 1990  K4PRO DL8TV JN49
042945 +12 2810  K4PRO IN3WZS JN56
043000  -3 2809  IT9VCE K4PRO -08
043015  +4 1990  K4PRO DL8TV JN49
043045  +2 2408  K4PRO DG5AAG JO51
043045  +7 1990  K4PRO DL8TV JN49
043115 +13 2810  K4PRO IN3WZS JN56
043115  +5 2407  K4PRO DG5AAG JO51 (x2)
043145 +10 2810  K4PRO IN3WZS JN56 (x5)

160m

UTC    dB Audio  Message
025845 -12 1597  K4PRO G8MIA IO92 (x4)

80m

UTC    dB Audio  Message
035430  -9 1875  K4PRO HB9CXZ JN46 (x2)
002830 -24 1680  HB9EFK K4PRO EL87
002845  +3  210  K4PRO HB9EFK -12 (x2)
030815 -13 1414  K4PRO US8UX -05 (x2)
031415  +6  809  K4PRO DO5HOK JO41
031415 +10 2319  K4PRO OE5DML JN78
031415  +6 2508  K4PRO OH1MLZ KP23
031445  +5 2348  K4PRO DO5PY JN49
031445  +3 2508  K4PRO OH1MLZ R-14 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.