ZL4KX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: New Zealand

Receiver-side FT8 activity involving ZL4KX, decoded by SO8OO in southeastern Poland. 4,120 related FT8 messages, 2 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 64 UTC dates. Heard between 2026-05-19 and 2026-08-16.

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

4,120

Related messages

CQ messages

UTC dates heard

-3 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-05-19
Last seen: 2026-08-16 19:14 UTC

Frequent QSO partners observed at SO8OO

Stations ZL4KX worked most often, as logged from our receiver:

SP3PLD · Poland ×2 DK3UA · Fed. Rep. of Germany ×2 SV3GKU · Greece ×2 PI4DX · Netherlands ×2 OZ8ABA · Denmark ×2 SP6ABD · Poland ×2 R3HH · European Russia ×2 EA3A · Spain ×2 DK7ZT · Fed. Rep. of Germany ×2 PJ2AFM · Curacao ×2 DO6LE · Fed. Rep. of Germany ×2 YO4BXX · Romania ×2

Activity Heatmap

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	ZL4KX S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 21:12	40m	- / -16	<...>	-12 / -	3	Partial capture
08-16 21:07	40m	- / -16	R6OD	-13 / -	2	Partial capture
08-16 20:08	80m	- / -18	YO4GIY	-14 / -	10	✓ Closing fragment
08-16 20:07	80m	- / -25	LA3WJA	-11 / -	9	✓ Closing fragment
08-16 20:07	80m	- / -11	R7CD	-5 / -	7	✓ Closing fragment
08-16 20:05	80m	- / -16	TA2E	-18 / -	6	Partial capture
08-16 20:03	80m	- / -	R7CD	-10 / -	3	Partial capture
08-16 20:03	80m	- / -7	SQ9LOJ	+1 / -	15	Partial capture
08-16 20:03	80m	- / -	UT7UA	+2 / -	10	Partial capture
08-16 20:02	80m	- / -10	RX3DPK/LH	-5 / -	6	✓ Closing fragment
08-16 20:02	80m	- / -18	UR5NKE	+1 / -	5	Partial capture
08-16 20:02	80m	- / -25	YO4BXX	-7 / -	10	✓ Closing fragment
08-16 20:01	80m	-16 / -	EA3A	-10 / +4	5	✓ Closing observed
08-16 20:01	80m	-16 / -16	G3UCQ	-19 / -7	6	✓ Full exchange observed
08-16 20:00	80m	-17 / -15	SP6JIU	+25 / -	4	✓ Closing observed
08-15 19:35	40m	- / -	EA3RR	-14 / -	6	Partial capture
08-14 07:28	20m	- / -	I1RJP	+2 / -	3	Partial capture
08-14 06:18	20m	- / -	I1RJP	+3 / -	3	Partial capture
08-10 05:02	80m	- / -18	I2RFJ	-11 / -	3	✓ Closing fragment
08-09 08:02	20m	- / -22	IU2RGL	-11 / -	2	Partial capture
08-09 05:42	60m	- / -11	PG0DX	+2 / -	3	✓ Closing fragment
08-09 05:37	60m	- / -18	IZ2DVI	+14 / -	3	✓ Closing fragment
08-08 08:37	20m	- / -	PD2JAM	-7 / -	2	Partial capture
08-08 08:33	20m	- / -	ON6AA	+5 / -	4	Partial capture
08-08 05:13	40m	- / -	PE1NPS	-14 / -	3	Partial capture
08-08 05:13	40m	- / -	I5MPN	-8 / -	2	Partial capture
08-08 05:12	40m	- / -9	YO6LM	-8 / -	2	Partial capture
08-08 05:10	40m	- / +3	G0BLB	-20 / -	4	✓ Closing fragment
08-08 05:09	40m	- / -	OE7NMI	-13 / -	4	Partial capture
08-07 06:27	20m	- / -	G7FPE	-13 / -	3	Partial capture
08-07 06:14	20m	-14 / -	OH0ERF	- / -9	2	Partial capture
08-05 07:04	20m	- / -	F4EBT	0 / -	2	Partial capture
08-05 06:56	20m	- / -	G0VLF	-6 / -	4	Partial capture
08-01 20:36	40m	- / -	RA3WY	-11 / -	3	Partial capture
08-01 20:30	40m	- / -	PD0HCV	-17 / -	4	Partial capture
08-01 20:25	40m	- / -	R7GA	-16 / -	6	Partial capture
08-01 20:23	40m	- / -	DL5AWR	-12 / -	15	Partial capture
08-01 20:21	40m	- / -	PA2JCB	-13 / -	13	Partial capture
08-01 20:17	40m	- / -	SQ5TOM	-13 / -	3	Partial capture
08-01 20:15	40m	- / -	DG5MLA	-3 / -	4	Partial capture
08-01 20:15	40m	- / -	R7GA	-14 / -	11	Partial capture
08-01 20:14	40m	- / -	UW5KW	-3 / -	6	Partial capture
08-01 20:13	40m	- / -	PA2JCB	-9 / -	8	Partial capture
08-01 20:10	40m	- / -	PD0IFI	-2 / -	5	Partial capture
08-01 20:09	40m	- / -	R7GA	-15 / -	3	Partial capture
08-01 20:09	40m	- / -	UW5KW	-4 / -	2	Partial capture
08-01 20:07	40m	- / -	DG5MLA	+2 / -	5	Partial capture
08-01 20:06	40m	- / -	EA3EDU	-12 / -	2	Partial capture
08-01 20:05	40m	- / -	PA2JCB	-6 / -	6	Partial capture
08-01 20:04	40m	- / -	ER3UA	-3 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
051330 -14 2536  ZL4KX PE1NPS JO22
051330  -9  740  ZL4KX I5MPN JN53
051400 -14 2537  ZL4KX PE1NPS JO22 (x2)
193530 -15 2194  ZL4KX EA3RR JN11 (x6)
210730 -12 2460  ZL4KX R6OD KN87 (x2)
211245 -12 1469  ZL4KX <...> -16 (x3)

80m

UTC    dB Audio  Message
201000  -4 1721  ZL4KX R7CD 73
201000 -14 1559  ZL4KX YO4GIY -18 (x2)
201030  +5 1928  ZL4KX SQ9LOJ R-19
201030 -10 1648  ZL4KX LA3WJA JP32
201100  -1 1928  ZL4KX SQ9LOJ R-19
201100  -7 1648  ZL4KX LA3WJA JP32
201100 -16 1559  ZL4KX YO4GIY -21 (x2)
201130  -8 1648  ZL4KX LA3WJA JP32 (x2)
201200 -13 1559  ZL4KX YO4GIY -22
201230  -9 1648  ZL4KX LA3WJA 73
201230 -14 1559  ZL4KX YO4GIY -22 (x2)

20m

UTC    dB Audio  Message
083215  -4 2623  ZL4KX EA7TR IM76
083315  +5 1580  ZL4KX ON6AA JO11 (x4)
083745  -6 2354  ZL4KX PD2JAM JO22 (x2)
080200 -11  280  ZL4KX IU2RGL JN45 (x2)
061845  +5  381  ZL4KX I1RJP JN45 (x6)

60m

UTC    dB Audio  Message
053715 +12 2738  ZL4KX IZ2DVI JN45 (x3)
054230  +3  526  ZL4KX PG0DX -11 (x3)

10m

UTC    dB Audio  Message
214000 -13 1393  ZL4KX PA5VL -15
214630 -19 2264  ZL4KX PA3BQC JO22 (x4)
214900 -23 1393  ZL4KX PA5VL -10 (x4)
211345 -21 2112  ZL4KX I5IAR JN53 (x2)
204145 -19 2381  ZL4KX G6CUT IO90
211315 -15  880  DO7BE ZL4KX RR73
212145 -17 1060  SP2TQQ ZL4KX RR73
212245 -17 1060  DL2TOS ZL4KX RR73

Decoder S/N history by band

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