LU1DA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Argentina Most frequent locator attributed to this token: GF05

Receiver-side FT8 activity involving LU1DA, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-30.

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 100 FT8 messages attributed to LU1DA as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 10 m (8%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -6 dB.

Overview

100

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 92 10m · 8

First attributed message: 2026-06-07
Last attributed message: 2026-08-30 21:59 UTC

Observed FT8 message patterns

Attributed sample: 100 messages
Active dates: 4 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -16 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 69.

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 LU1DA in decoded directed-looking exchanges:

F4HHL · France ×2 RA3ZK · European Russia RV3RX · European Russia 2E0IJC · England BG5FCH · China DL1R · Fed. Rep. of Germany DL8HXP · Fed. Rep. of Germany EA1DP · Spain EA3AAY · Spain EA3IE · Spain EB1LA · Spain EB7CFU · Spain

Most frequent locator attributed to LU1DA

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: GF05 · 54 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 12,276 km (approx.)
Last such locator decoded: 2026-08-30 21:59 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	LU1DA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 21:47	20m	- / -	DD7XX	+1 / -	4	Partial capture
08-30 21:44	20m	- / -15	M7HET	-6 / -	3	✓ Closing fragment
08-23 21:39	20m	-6 / -	IK0ISD	- / -7	3	Partial capture
08-23 21:28	20m	-3 / -	DL8HXP	- / -11	17	Partial capture
08-23 21:28	20m	- / -24	G8GDS	-3 / -	19	Partial capture
08-23 21:24	20m	-4 / -	M0LAD	-7 / -8	5	✓ Closing observed
08-23 21:15	20m	-4 / -	LU3XEM	- / -9	2	✓ Closing fragment
08-23 21:11	20m	- / -16	F4VTR	+8 / -	3	✓ Closing fragment
08-23 21:03	20m	-4 / -	BU2FW	- / -	12	Partial capture
08-23 20:58	20m	- / -	M0LAD	-15 / -	7	Partial capture
08-23 20:56	20m	-12 / -	2E0WWG	-3 / -11	2	Partial capture
08-23 20:51	20m	-14 / -	2E0IJC	-18 / -15	4	✓ Closing observed
08-23 20:48	20m	-14 / -21	F4HHL	-11 / -8	8	✓ Full exchange observed
08-23 20:41	20m	-16 / -20	UX5UO	-7 / -	4	✓ Closing observed
08-16 21:44	20m	- / -	DL3VPZ	-4 / -	2	Partial capture
08-16 21:36	20m	- / -	RW3ZC	0 / -	2	✓ Closing fragment
08-16 21:31	20m	- / -16	R2BQM	+2 / -	5	Partial capture
08-16 21:30	20m	- / -16	II3DRC	-16 / -	2	Partial capture
08-16 21:26	20m	- / -	R3BIS	-10 / -	2	Partial capture
08-16 21:25	20m	- / -16	PD1RGW	-8 / -	5	✓ Closing fragment
07-29 22:56	40m	- / -	RA3ZDU	-20 / -	8	Partial capture
07-29 22:13	20m	- / -	M0CKX	-12 / -	3	Partial capture
07-29 22:08	20m	- / -	F4MGP	-6 / -	2	Partial capture
07-26 21:46	20m	- / -18	OE9RWH	-8 / -	3	✓ Closing fragment
07-26 21:42	20m	- / -2	M0URL	+5 / -	3	✓ Closing fragment
07-26 21:23	20m	- / -	G8IXM	-11 / -	3	Partial capture
07-26 21:17	20m	- / -8	F4MOH	-11 / -	10	Partial capture
07-26 21:15	20m	- / -	M7ISX	0 / -	4	Partial capture
07-12 23:06	40m	- / -	F4BYA	+2 / -	4	Partial capture
07-12 22:58	40m	- / -14	UR5KC	+2 / -	3	✓ Closing fragment
07-12 22:57	40m	- / -	F4BYA	0 / -	2	Partial capture
07-12 22:57	40m	- / -19	IQ4JO	-9 / -	3	✓ Closing fragment
07-12 21:29	20m	- / -12	CT1FIU	-12 / -	2	Partial capture
07-12 21:18	20m	- / -	OK2UQF	-6 / -	2	Partial capture
07-12 21:14	20m	- / -	OE3LQA	+8 / -	2	Partial capture
07-12 20:38	20m	- / -	R7OV	-3 / -	5	Partial capture
07-10 21:47	20m	- / -18	EB1LA	-17 / -	3	✓ Closing fragment
07-10 21:16	20m	- / -	EA5JLV	-10 / -	2	Partial capture
07-10 20:52	20m	- / -	F4NKE	-6 / -	2	Partial capture
07-10 20:44	20m	- / -11	RA6OY	-12 / -	2	Partial capture
07-10 20:36	20m	- / -21	EA3IE	-14 / -	2	✓ Closing fragment
07-09 21:19	20m	- / -22	EA3AAY	-17 / -	3	✓ Closing fragment
07-06 22:25	20m	- / -13	IU3UJE	-8 / -	4	✓ Closing fragment
07-06 22:18	20m	- / +7	RW3FY	-7 / -	5	✓ Closing fragment
07-06 21:40	20m	- / -	DL8HXP	-7 / -	3	✓ Closing fragment
06-29 21:47	20m	- / -13	DL1R	+2 / -	3	✓ Closing fragment
06-29 21:38	20m	- / -	M0VGB	-4 / -	6	Partial capture
06-29 21:33	20m	- / -	EA4HEW	-4 / -	4	Partial capture
06-29 21:32	20m	- / -	G0LPI	+7 / -	3	Partial capture
06-29 21:28	20m	- / -	S57LU	-10 / -	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
214530  -4 1167  LU1DA M7HET 73
214545 -11 2787  CQ LU1DA GF05                         a1
214700  -4 2787  LU1DA DD7XX JO43 (x2)
214915  -7 2778  CQ LU1DA GF05                         a1
214930  +3 2778  LU1DA DD7XX JO43 (x2)
215115  -4 2778  PT9PA LU1DA 73
215145  -4 2778  CQ LU1DA GF05 (x3)
215645  -6 2777  BG5FCH LU1DA RR73
215815  -7 2778  CQ LU1DA GF05                         a1 (x3)

40m

UTC    dB Audio  Message
225830  -1 1716  LU1DA UR5KC KO30 (x3)
230600  -1 2982  LU1DA F4BYA JN19 (x4)
225615 -23 1846  LU1DA RA3ZDU KO90 (x8)

10m

UTC    dB Audio  Message
193530  +2 1199  LU1DA RA3ZK KO81 (x7)
194000 -14 1347  LU1DA RV3RX LO02 (x3)
194945  -7  738  LU1DA DH8BAB JO43 (x2)

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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