7Z1DZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Most frequent locator attributed to this token: LK08

Receiver-side FT8 activity involving 7Z1DZ, decoded by SO8OO in southeastern Poland. 175 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-25.

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 175 FT8 messages attributed to 7Z1DZ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (63%), followed by 20 m (37%). Most decodes (86%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

175

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

20m · 65 10m · 110

First attributed message: 2026-06-08
Last attributed message: 2026-08-25 18:49 UTC

Observed FT8 message patterns

Attributed sample: 175 messages
Active dates: 9 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 65, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 59.

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 7Z1DZ in decoded directed-looking exchanges:

EA3AAY · Spain ×2 EA7TR · Spain ×2 7Q3WS · Malawi 8A1WWA · Indonesia 9A7BKU · Croatia DK2MAX · Fed. Rep. of Germany EA3DYI · Spain IK6CGO · Italy LA2GCA · Norway MM3RCR · Scotland ON4CBK · Belgium PD9FLX · Netherlands

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 7Z1DZ

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: LK08 · 60 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,891 km (approx.)
Last such locator decoded: 2026-08-25 16:44 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	7Z1DZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 20:19	20m	- / -18	TA2ED	-4 / -	2	Partial capture
08-25 20:10	20m	- / -	CT1BFP	-6 / -	4	Partial capture
08-25 19:47	20m	- / -	EB5FMC	-5 / -	4	Partial capture
08-25 19:45	20m	- / -	F4BYA	+5 / -	2	Partial capture
08-25 19:38	20m	- / -12	EA7TR	+7 / -	3	✓ Closing fragment
08-25 18:45	20m	- / -	EA4AQQ	0 / -	2	Partial capture
08-25 18:44	20m	- / -9	F1SZC	+13 / -	3	✓ Closing fragment
08-25 18:44	20m	- / -	IZ1JIZ	+4 / -	4	Partial capture
08-25 18:43	20m	- / -	IK4LZH	+5 / -	3	Partial capture
08-25 18:40	20m	- / -	PD2PE	-1 / -	3	Partial capture
08-25 18:32	20m	- / -12	F5RRS	+15 / -	4	✓ Closing fragment
08-25 16:57	20m	-14 / -	SV9FBT	- / -12	2	Partial capture
08-25 16:56	20m	- / -	EA1NT	+12 / -	2	Partial capture
08-25 16:56	20m	- / -16	RU3QR	-9 / -	3	Partial capture
08-25 16:48	20m	- / +2	M8KKH	+2 / -	4	✓ Closing fragment
08-25 16:45	20m	-14 / -10	F5PBG	-7 / -16	5	✓ Full exchange observed
08-25 16:43	20m	-9 / -18	RY7G	+2 / -	3	✓ Closing observed
08-25 16:41	20m	-8 / -	IK6DLK	- / -11	2	✓ Closing fragment
08-25 16:38	20m	- / -14	EA3IE	-2 / -	2	✓ Closing fragment
08-25 16:38	20m	-13 / -	OH/SM5MRW	-18 / -18	4	Partial capture
08-25 16:37	20m	- / -	F4BYA	+2 / -	3	Partial capture
08-25 16:37	20m	- / -	EB3EKZ	0 / -	2	Partial capture
08-25 16:23	20m	-12 / -	F5PBG	- / -17	2	Partial capture
08-25 16:21	20m	-10 / -	M7SYR	- / -16	3	✓ Closing fragment
08-25 15:26	20m	-16 / -	RA0QK/8	- / -23	4	Partial capture
08-25 15:20	20m	- / -11	F4IZO	-12 / -	9	Partial capture
08-25 15:17	20m	- / -5	F4MSA	+10 / -	2	Partial capture
08-25 15:12	20m	-11 / -	RC6OU	- / -13	2	✓ Closing fragment
08-25 15:11	20m	- / -	F5IXN	+8 / -	3	Partial capture
08-25 15:08	20m	-11 / -13	EX7DY	-21 / -	3	✓ Closing observed
08-25 14:19	20m	- / -4	SV8NAJ	-12 / -	2	✓ Closing fragment
08-25 13:46	20m	- / -	IZ1JIZ	-6 / -	2	Partial capture
08-25 13:38	20m	- / -	IZ1JIZ	-4 / -	4	Partial capture
08-19 13:18	10m	- / -14	IK6CGO	-11 / -	3	✓ Closing fragment
08-07 20:21	40m	- / -19	IK3SCB	-16 / -	4	✓ Closing fragment
07-28 21:24	20m	- / -16	F1PBZ	-4 / -	3	Partial capture
07-28 21:14	20m	- / -12	YO9HP	-14 / -	2	✓ Closing fragment
07-28 21:01	20m	- / -12	GM3DRA	-4 / -	3	✓ Closing fragment
07-28 20:59	20m	- / -	G0GFC	-14 / -	2	Partial capture
07-28 20:59	20m	- / -14	DL9GCW	-3 / -	4	Partial capture
07-28 20:50	20m	- / -2	IS0AEL	-13 / -	2	✓ Closing fragment
07-27 20:13	40m	- / -18	R3BDQ	-4 / -	2	Partial capture
07-27 20:06	40m	- / -	SQ2PQ	-4 / -	2	Partial capture
07-27 19:56	40m	- / -5	Z62NS	-13 / -	3	✓ Closing fragment
07-27 19:35	40m	- / -19	UB4CGR	-16 / -	2	Partial capture
07-27 19:27	40m	- / -15	DH0GBC	-4 / -	2	✓ Closing fragment
07-21 21:06	40m	- / -16	EW2ZC	-10 / -	2	✓ Closing fragment
07-21 21:01	40m	- / -	UI5A	-10 / -	2	✓ Closing fragment
07-21 20:44	40m	- / -	9A7Y	-6 / -	2	Partial capture
07-21 20:14	40m	- / -10	LB7ZG	-8 / -	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
194530  +4 2918  7Z1DZ F4BYA JN19 (x2)
194630  -5 1744  7Z1DZ TA2ED -17
194700  -3 1008  7Z1DZ EB5FMC IM99 (x4)
194930 -20 2275  7Z1DZ BG7BMG -25
201000  -6 1619  7Z1DZ CT1BFP IM59 (x3)
201200 -11 1008  7Z1DZ EB5FMC IM99
201200  -3 1619  7Z1DZ CT1BFP IM59
201900  -5 1744  7Z1DZ TA2ED -18 (x2)

10m

UTC    dB Audio  Message
132930 -11  818  DL1SMA 7Z1DZ -08
133230 -14 2490  ON4CBK 7Z1DZ RR73
134200 -22 1470  DK2MAX 7Z1DZ 73
140100 -21 2089  UT5ECZ 7Z1DZ R-11 (x2)
140300 -21 1594  PD9FLX 7Z1DZ -15 (x2)
140430 -16 2228  <...> 7Z1DZ -03
140700 -19 2040  UR4UUR 7Z1DZ -14
140930 -12 1446  DG0NE 7Z1DZ R-17
141130 -21 1822  CQ 7Z1DZ LK08
124230  -9  775  7Z1DZ SV2CLJ 73
131830  -9 2397  7Z1DZ IK6CGO JN63 (x3)

40m

UTC    dB Audio  Message
195630 -13  945  7Z1DZ Z62NS -05 (x3)
195900 -21 1858  7Z1DZ RV3H KO85
200645  -4  596  7Z1DZ SQ2PQ JO94 (x2)
200730 -18 1476  7Z1DZ UB4CGR -17
201300  -5 2843  7Z1DZ R3BDQ -18
201330 -21 1717  7Z1DZ YO9ADN KN35
201330  -2 2843  7Z1DZ R3BDQ -20
202145 -13 1375  7Z1DZ IK3SCB -19 (x4)
205645 -19 2159  7Z1DZ IZ0MIT JN61

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.

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