7Z1WW — 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: Saudi Arabia Most frequent locator attributed to this token: KL91

Receiver-side FT8 activity involving 7Z1WW, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-10-09 and 2026-10-18.

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 90 FT8 messages attributed to 7Z1WW as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (97%), followed by 10 m (3%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 87 10m · 3

First attributed message: 2026-10-09
Last attributed message: 2026-10-18 21:36 UTC

Observed FT8 message patterns

Attributed sample: 90 messages
Active dates: 5 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -18 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 35, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 7.

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 7Z1WW in decoded directed-looking exchanges:

A71AH · Qatar EX7CQ · Kyrgyzstan R4HHN · European Russia RA6FC · European Russia RC9WC · Asiatic Russia UK8FCM · Uzbekistan

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.

Most frequent locator attributed to 7Z1WW

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KL91 · 86 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,504 km (approx.)
Last such locator decoded: 2026-10-18 21:36 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	7Z1WW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 21:32	40m	- / -	EI4JFB	-12 / -	3	Partial capture
10-18 21:31	40m	- / -	SV3AUW	-10 / -	6	Partial capture
10-18 21:22	40m	- / -	DL1MEV	-6 / -	2	Partial capture
10-18 21:21	40m	- / -	EC2ASL	-6 / -	2	Partial capture
10-18 08:28	10m	- / -	SQ8DPZ	-10 / -	3	Partial capture
10-17 20:36	40m	- / -13	YO4NT	-8 / -	2	Partial capture
10-17 20:12	40m	- / -	LZ4VR	-13 / -	5	Partial capture
10-17 13:21	10m	- / -	CR7BUW	-12 / -	2	Partial capture
10-17 12:31	10m	- / -20	CT7AUT	-9 / -	6	Partial capture
10-17 12:27	10m	- / -	CT7AUT	-6 / -	3	Partial capture
10-17 08:57	10m	- / -15	F1PBZ	-6 / -	2	Partial capture
10-17 08:56	10m	- / -	UT1EF	-6 / -	2	Partial capture
10-16 12:55	10m	- / -	EA7UW	-17 / -	2	Partial capture
10-16 12:13	10m	- / -9	EA7LHN	-11 / -	4	Partial capture
10-16 11:55	10m	- / -18	EA7AH	-10 / -	4	Partial capture
10-15 23:24	40m	- / -	RZ4FWA	-12 / -	2	Partial capture
10-15 23:21	40m	- / -17	F1PBZ	+12 / -	4	Partial capture
10-15 23:21	40m	- / -12	IZ8EYN	-4 / -	2	Partial capture
10-15 13:23	10m	- / -	IK2JBY	-10 / -	4	Partial capture
10-13 15:21	10m	- / -16	EA5JFO	-18 / -	4	Partial capture
10-13 14:18	10m	- / -	EB7CFU	-15 / -	8	Partial capture
10-13 14:11	10m	- / -	EB7CFU	-13 / -	9	Partial capture
10-13 13:34	10m	- / -	EA7Z	-8 / -	2	Partial capture
10-13 12:17	10m	- / -	EB1LA	-6 / -	4	Partial capture
10-09 10:37	40m	- / -	SQ5CZJ	-6 / -	8	Partial capture
10-09 04:01	40m	- / -	US0QV	-16 / -	2	Partial capture
10-09 03:59	40m	- / -	G0HSP	-8 / -	2	Partial capture
10-09 03:55	40m	- / -	EA7NK	-16 / -	3	Partial capture
10-09 03:40	40m	- / -	RX6ABW	-9 / -	2	Partial capture
10-09 03:19	40m	- / -	F5OYA/P	-8 / -	37	Partial capture
10-09 02:30	40m	- / -	F5OAM	-11 / -	5	Partial capture
10-09 02:13	40m	- / -	F4FPR	-12 / -	5	Partial capture
10-09 02:06	40m	- / -	R7DX	-10 / -	2	Partial capture
10-09 01:55	160m	- / -	OM0RX	0 / -	4	Partial capture
10-09 01:54	40m	- / -	G3TKT	+4 / -	2	Partial capture
10-09 01:40	40m	- / -	G7LHK	-4 / -	6	Partial capture
10-09 01:38	40m	- / -	G7KNF	+1 / -	3	Partial capture
10-09 01:33	40m	- / -	CT2GQA	-4 / -	2	Partial capture
10-09 01:31	40m	- / -	G3TKT	+2 / -	4	Partial capture
10-09 01:23	40m	- / -	CT2GQA	-4 / -	5	Partial capture
10-09 01:12	40m	- / -	G7KNF	+2 / -	2	Partial capture
10-09 00:57	40m	-17 / +3	YO9PH	-12 / -16	3	Partial capture
10-09 00:53	40m	- / -5	EX7CQ	-12 / -	2	✓ Closing fragment
10-09 00:46	40m	- / -	G3TKT	+2 / -	6	Partial capture
10-09 00:37	40m	- / -8	RA6FC	-4 / -	3	✓ Closing fragment
10-09 00:36	40m	- / -	TA3TK	-7 / -	3	Partial capture
09-25 01:23	40m	- / -1	RC9WC	-18 / -	4	✓ Closing fragment
09-25 01:23	40m	- / -12	R4HHN	-20 / -	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
212400  -3 2740  7Z1WW DL1MEV JN58
213130 -11 2044  7Z1WW SV3AUW KM17
213130 -19 1114  7Z1WW IW2ODG -03
213200  -7 2045  7Z1WW SV3AUW KM17
213200 -14  842  7Z1WW EI4JFB IO63
213215 -13  842  CQ 7Z1WW KL91
213230 -10 2045  7Z1WW SV3AUW KM17
213230 -12  841  7Z1WW EI4JFB IO63
213300  -9 2045  7Z1WW SV3AUW KM17
213300 -10  842  7Z1WW EI4JFB IO63
213330  -8 2046  7Z1WW SV3AUW KM17 (x2)
213400 -10  841  7Z1BH 7Z1WW -19
213530  -6  842  CQ 7Z1WW KL91 (x2)

10m

UTC    dB Audio  Message
122700  -6 1510  7Z1WW CT7AUT IM67 (x9)
123600 -22 1593  7Z1WW CS7BPG IN51
132130 -11 2495  7Z1WW CR7BUW IM58 (x2)
082830 -10  669  7Z1WW SQ8DPZ KN09 (x3)

160m

UTC    dB Audio  Message
015515  -3 1502  7Z1WW OM0RX JN88 (x4)

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

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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