7Z1DR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Most frequent locator attributed to this token: LL45

Receiver-side FT8 activity involving 7Z1DR, decoded by SO8OO in southeastern Poland. 344 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-05.

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 344 FT8 messages attributed to 7Z1DR as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (90%), followed by 10 m (7%) and 40 m (3%). Several six-hour UTC windows tied for the largest share (88%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -3 dB.

Overview

344

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

40m · 10 20m · 309 10m · 25

First attributed message: 2026-06-06
Last attributed message: 2026-09-05 02:39 UTC

Observed FT8 message patterns

Attributed sample: 344 messages
Active dates: 16 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -9 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 300.

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 7Z1DR in decoded directed-looking exchanges:

F1PBZ · France K3EA · United States K3SF · United States K4VHE · United States K4WLG · United States K5SAA · United States KD2BRV · United States KM4FZA · United States KM4TDZ · United States KR4NRR · United States N4NEH · United States N5FWB · United States

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 7Z1DR

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: LL45 · 63 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,581 km (approx.)
Last such locator decoded: 2026-08-26 01:50 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	7Z1DR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 02:37	40m	-8 / -14	W9XY	-7 / -15	3	✓ Closing observed
09-05 02:35	40m	-9 / -	AG2K	- / -15	3	Partial capture
08-26 01:55	20m	- / -12	WI1U	-15 / -	4	Partial capture
08-26 01:50	20m	-12 / -	SV1MOZ	- / -6	2	✓ Closing fragment
08-26 01:47	20m	-4 / -	KO4BKR	- / -13	2	Partial capture
08-26 01:46	20m	-10 / -	K3SF	- / -15	3	✓ Closing fragment
08-26 01:44	20m	-6 / -	KM4FZA	- / -15	2	✓ Closing fragment
08-26 01:42	20m	-6 / -	K5RSB	- / -13	4	Partial capture
08-26 01:41	20m	0 / -	KD2BRV	- / -7	2	✓ Closing fragment
08-26 01:40	20m	- / -	KM4FZA	-20 / -	2	Partial capture
08-26 01:40	20m	-2 / -	KM4TDZ	- / -16	2	✓ Closing fragment
08-26 01:36	20m	- / -	RV6F	-23 / -	3	Partial capture
08-26 01:35	20m	-6 / -	K4VHE	- / -16	4	✓ Closing fragment
08-26 01:32	20m	-5 / -	F1PBZ	- / -8	3	✓ Closing fragment
06-23 03:07	20m	-5 / -	W0NBC	- / -8	2	Partial capture
06-23 03:01	20m	-7 / -	KB9ZM	- / -8	4	Partial capture
06-23 02:59	20m	-5 / -	<...>	- / -8	2	Partial capture
06-23 02:55	20m	-6 / -	RV9WJP	- / -8	3	✓ Closing fragment
06-23 02:51	20m	-6 / -	WD2P	- / -11	2	Partial capture
06-23 02:46	20m	-7 / -15	NC3S	-5 / -	2	✓ Closing observed
06-23 02:42	20m	-8 / -	KQ4TPD	- / -16	2	Partial capture
06-23 02:37	20m	-3 / -	N5FWB	- / -12	4	✓ Closing fragment
06-23 02:33	20m	0 / -	K6HLC	- / -17	2	Partial capture
06-23 02:23	20m	-1 / -	WA3THL	- / -13	2	✓ Closing fragment
06-23 02:09	20m	- / -9	N1LYP	-4 / -	2	Partial capture
06-23 01:56	20m	- / -5	K3EA	-7 / -	2	✓ Closing fragment
06-23 01:55	20m	- / -8	N2BJ	-4 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
023545  -8  537  AG2K 7Z1DR -15 (x3)
023730  -6  855  7Z1DR W9XY -14
023815  -8  537  W9XY 7Z1DR -15
023900  -8  855  7Z1DR W9XY 73
023915  -8  537  K4YT 7Z1DR -15

20m

UTC    dB Audio  Message
014615  -8  626  K3SF 7Z1DR -15 (x3)
014745  -4  626  KO4BKR 7Z1DR -13 (x2)
014845  -2  626  CQ 7Z1DR LL45
014915  -6  626  UT7UJ 7Z1DR R-07
014930 -19 1944  7Z1DR NA4MM EM62
015015 -14  626  CQ 7Z1DR LL45                         a1
015045 -12  626  SV1MOZ 7Z1DR -06 (x2)
015500 -16 1535  7Z1DR WI1U -12 (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.

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