7Z1CZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Locator transmitted in a decoded message: LK18

Receiver-side FT8 activity involving 7Z1CZ, decoded by SO8OO in southeastern Poland. 589 related FT8 messages, 173 CQ messages, observed on 20m, 10m, across 12 UTC dates. Heard between 2026-06-07 and 2026-08-22.

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

589

Related messages

173

CQ messages

UTC dates heard

-10 dB

Mean decoder S/N

Bands

20m 10m

First seen: 2026-06-07
Last seen: 2026-08-22 02:29 UTC

Frequent QSO partners observed at SO8OO

Stations 7Z1CZ worked most often, as logged from our receiver:

EA5JUX · Spain ×2 UR1CCO · Ukraine ×2 F1PBZ · France ×2 K4KYN · United States ×2 JH7RTQ · Japan PA3HIJ · Netherlands UA3ZQN · European Russia RD1A · European Russia PD0JOY · Netherlands VE3LWY · Canada RW4F · European Russia WA1F · United States

Activity Heatmap

Locator transmitted by 7Z1CZ

Approximate centre of LK18, decoded 2026-08-22 04:29 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	7Z1CZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 04:29	20m	-12 / -	EA3AKY	- / -13	2	✓ Closing fragment
08-22 04:27	20m	-16 / -	Z35T	- / -8	2	✓ Closing fragment
08-22 04:22	20m	- / -25	EX8ABQ	-16 / -	2	Partial capture
08-22 04:21	20m	-9 / -	N4OHI	- / -20	11	✓ Closing fragment
08-22 04:19	20m	- / -	PA3DZM	-14 / -	4	Partial capture
08-22 04:18	20m	-6 / -	RD9FC	- / -17	2	✓ Closing fragment
08-22 04:17	20m	- / -	PD0RCQ	-11 / -	2	Partial capture
08-22 04:16	20m	-12 / -	DG9XN	- / -18	2	✓ Closing fragment
08-22 04:14	20m	-11 / -	R4CES	- / -14	2	✓ Closing fragment
08-22 04:12	20m	-14 / -	OH1RM	- / -13	2	✓ Closing fragment
08-22 04:10	20m	-14 / -	KE8NBC	- / -16	2	✓ Closing fragment
08-22 04:09	20m	- / -	NE9U	-17 / -	6	Partial capture
08-22 04:07	20m	-10 / -	R6SBN	- / -21	4	✓ Closing fragment
08-22 04:05	20m	- / -	NE9U	-18 / -	4	Partial capture
08-22 04:01	20m	-11 / -	AB2RR	- / -15	6	Partial capture
08-22 03:59	20m	-11 / -	WD5N	- / -16	2	✓ Closing fragment
08-22 03:58	20m	-9 / -	K5DA	- / -11	2	✓ Closing fragment
08-22 03:56	20m	-6 / -	WA9WFA	- / -6	2	✓ Closing fragment
08-22 03:42	20m	- / -17	PD2WL	0 / -	10	Partial capture
08-22 03:41	20m	- / -	PD3LKN	-11 / -	9	Partial capture
08-22 03:39	20m	-8 / -	RO6G	- / -15	4	✓ Closing fragment
08-22 03:38	20m	- / -14	R9CP	-8 / -	2	Partial capture
08-22 03:38	20m	- / -	IK4LZH	-10 / -	2	Partial capture
08-22 03:36	20m	- / -	UX1VT	-21 / -	3	Partial capture
08-22 03:35	20m	-8 / -	N2FBV	- / -9	2	✓ Closing fragment
08-22 03:33	20m	-12 / -	WV1W	- / -12	2	✓ Closing fragment
08-22 03:32	20m	-12 / -	RD1A	- / -9	2	✓ Closing fragment
08-20 00:44	20m	-7 / -	AE4JM	- / -17	3	✓ Closing fragment
08-20 00:41	20m	-8 / -	W4EIS	- / -17	2	✓ Closing fragment
08-20 00:40	20m	- / -	HB9TIH	-14 / -	7	Partial capture
08-20 00:30	20m	-8 / -	W4EIS	- / -14	14	Partial capture
08-20 00:27	20m	-6 / -	W8SLR	- / -16	2	✓ Closing fragment
08-20 00:26	20m	-8 / -	W5MMW	- / -10	2	✓ Closing fragment
08-20 00:24	20m	-9 / -	K2LNS	- / -6	2	✓ Closing fragment
08-20 00:24	20m	- / -	IK4LZH	+1 / -	4	Partial capture
08-20 00:21	20m	- / +3	YO4NF	-14 / -	2	Partial capture
08-20 00:21	20m	-11 / -	NV8B	- / -18	2	✓ Closing fragment
08-20 00:16	20m	-8 / -	WA0DYJ	- / -11	9	Partial capture
08-20 00:14	20m	-6 / -	DB5BC	- / -15	2	✓ Closing fragment
08-20 00:12	20m	- / +1	YO4NF	-15 / -	3	Partial capture
08-20 00:09	20m	- / -	HB9TIH	-22 / -	3	Partial capture
08-20 00:08	20m	-8 / -	K4KYN	- / -18	11	✓ Closing fragment
08-20 00:07	20m	- / -	IW5ALZ	-8 / -	2	Partial capture
08-20 00:07	20m	-6 / -	N8TUP	- / -14	2	✓ Closing fragment
08-20 00:05	20m	-5 / -	WA1F	- / -7	2	✓ Closing fragment
08-20 00:03	20m	-5 / -	WX0E	- / -4	2	✓ Closing fragment
08-20 00:02	20m	-7 / -	KI9A	- / -8	2	✓ Closing fragment
08-19 23:54	20m	-6 / -	W4EIS	- / -17	12	Partial capture
08-19 23:53	20m	-6 / -	VE3LWY	- / -4	2	✓ Closing fragment
08-19 23:47	20m	-6 / -	WB0MMC	- / -19	8	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
042415 -18 1579  7Z1CZ EX8ABQ R-25
042430 -13 1578  N4OHI 7Z1CZ RR73 (x6)
042730 -20 1578  Z35T 7Z1CZ R-08 (x2)
042815  -9 2731  7Z1CZ UR9QQ KN77
042830 -11 1579  CQ 7Z1CZ LK18 (x2)
042915  -1 1579  7Z1CZ F4HQL JN29
042930 -12 1579  EA3AKY 7Z1CZ -13 (x2)

10m

UTC    dB Audio  Message
161600  -5 1594  US2YW 7Z1CZ -03 (x2)
161645  -7 1593  7Z1CZ RV6HE -01 (x2)
161730  -6 1594  UT3UZ 7Z1CZ -09 (x2)
161815  -3 1593  7Z1CZ RV6HE -01
161845 -18 1594  7Z1CZ UA6AFS LN05
161930  -4 1594  DL3MIB 7Z1CZ RR73
162045 -17 1594  7Z1CZ UA6AFS LN05
162100  -8 1594  F1PBZ 7Z1CZ R-01 (x2)
162145 -14 1594  7Z1CZ UA6AFS LN05 (x3)

Decoder S/N history by band

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