DL3YAT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DL3YAT, decoded by SO8OO in southeastern Poland. 163 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-07-20.

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 163 FT8 messages attributed to DL3YAT as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 20 m (9%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

163

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 148 20m · 15

First attributed message: 2026-06-12
Last attributed message: 2026-07-20 21:26 UTC

Observed FT8 message patterns

Attributed sample: 163 messages
Active dates: 7 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 68, strong (≥ -8 dB) 35.

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 DL3YAT in decoded directed-looking exchanges:

IQ4JO · Italy ×2 5N0YEN · Nigeria HS0ZOY · Thailand ZF2OO · Cayman Islands 5Z4VJ · Kenya 9A3AUH · Croatia BG4TRN · China CT7ATA · Portugal CT7AXN · Portugal DH0GBC · Fed. Rep. of Germany DK0ACI · Fed. Rep. of Germany DK6MR · Fed. Rep. of Germany

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 DL3YAT

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: JO31 · 62 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-07-20 21:25 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	DL3YAT S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-20 21:24	20m	-8 / -6	HS0ZOY	-8 / -15	6	✓ Full exchange observed
07-19 22:44	40m	-4 / -	CE2SV	- / -	4	Partial capture
07-19 22:42	40m	-4 / -	IT9GJK	- / -8	2	✓ Closing fragment
07-19 22:42	40m	- / -1	IT9GJK/P	-22 / -	2	✓ Closing fragment
07-19 22:37	40m	-7 / -	TF8KW	- / -6	5	Partial capture
07-19 22:32	40m	-9 / -	VJ6X	- / -20	2	✓ Closing fragment
07-19 20:58	20m	-11 / -	5N0YEN	- / -	2	Partial capture
07-14 22:02	40m	-12 / -	SP9KSK	- / -8	4	✓ Closing fragment
07-14 21:57	40m	-16 / -10	DK0ACI	-4 / -18	4	✓ Full exchange observed
07-14 21:55	40m	-12 / -	SP6ZLT	- / -5	2	Partial capture
07-14 21:54	40m	-12 / 0	PC2J	-20 / -14	4	✓ Full exchange observed
07-14 21:52	40m	-16 / -	SP5MIG	- / -8	2	✓ Closing fragment
07-14 21:51	40m	- / -	DL1RAZ	-12 / -	2	Partial capture
07-14 21:48	40m	- / -	DL1RAZ	-14 / -	2	Partial capture
07-14 21:47	40m	-17 / +2	9A3AUH	-14 / -2	4	✓ Full exchange observed
07-14 21:45	40m	-17 / -4	<...>	-19 / -10	3	Partial capture
07-14 21:43	40m	-14 / -	SV1GYN	- / -5	2	Partial capture
07-14 21:41	40m	-14 / -	EA4IXO	- / -6	2	✓ Closing fragment
07-14 21:40	40m	-18 / -	CT7AXN	- / -9	2	✓ Closing fragment
07-14 21:39	40m	-14 / -5	RN6MA	-13 / -5	3	✓ Full exchange observed
07-14 21:37	40m	-10 / -	CT7ATA	- / -8	2	✓ Closing fragment
07-14 21:33	40m	-12 / -	SV1GYN	- / -10	3	Partial capture
07-14 21:32	40m	-17 / -	R4UAS	- / -13	2	✓ Closing fragment
07-14 21:30	40m	-22 / -1	IK4LZH	-1 / +2	3	✓ Full exchange observed
07-14 21:25	40m	-18 / -	AP5ARS	- / -	2	Partial capture
07-14 21:24	40m	-12 / -	XV9B	- / -20	2	Partial capture
07-14 21:21	40m	-11 / -	SP9DPI	- / -12	5	✓ Closing fragment
07-14 21:12	40m	-9 / -8	DL7ACA	-10 / -	7	✓ Closing observed
07-14 21:11	40m	-8 / -	SP7TF	- / -17	2	✓ Closing fragment
07-14 21:05	40m	-10 / -7	OE6TNO	-17 / -1	4	✓ Full exchange observed
07-14 21:01	40m	-17 / -	5Z4VJ	- / -9	3	✓ Closing fragment
07-14 20:59	40m	-20 / -	MW7AHM	- / -15	2	✓ Closing fragment
07-14 20:58	40m	-20 / -7	IQ4JO	0 / -5	4	✓ Full exchange observed
07-14 20:55	40m	-19 / -	RW3DDZ	- / -8	2	✓ Closing fragment
07-14 20:53	40m	-20 / -	DH0GBC	-13 / -2	4	✓ Full exchange observed
07-14 20:51	40m	-16 / -	DM8ET	- / +1	2	✓ Closing fragment
07-14 20:47	40m	-20 / -	G4NSO	- / -7	2	Partial capture
07-14 20:44	40m	-21 / -	IQ4JO	-3 / -5	2	Partial capture
07-14 20:43	40m	-22 / 0	DL9KM	-10 / -2	4	✓ Full exchange observed
07-14 20:41	40m	-23 / -	UT8SQ	- / -3	2	✓ Closing fragment
07-14 20:37	40m	- / -	IQ4JO	-3 / -	2	Partial capture
07-14 20:37	40m	-15 / -3	RN6MA	-15 / -13	5	Partial capture
07-14 20:35	40m	-12 / -	F6BHK	- / -5	2	Partial capture
07-14 20:28	40m	-8 / -	DK6MR	- / -12	2	✓ Closing fragment
07-14 20:26	40m	- / -	UT8SQ	-14 / -	2	Partial capture
07-14 20:25	40m	-5 / -	DM6KW	- / -	2	✓ Closing fragment
07-14 20:24	40m	-5 / +2	DL3MIB	-3 / -7	7	✓ Full exchange observed
07-14 20:24	40m	-8 / +4	G4DBW	-15 / +1	8	Partial capture
07-14 20:22	40m	-6 / -2	OE3PBS	-9 / -3	5	✓ Full exchange observed
07-14 20:21	40m	-6 / -	S55A	-10 / -9	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
202415 -10 1975  DL3YAT R4FDK LO23 (x2)
193930 -21 2253  HI3WWA DL3YAT JO31
164715  -9  674  SU1AS DL3YAT JO31
205800  -9 2549  5N0YEN DL3YAT JO31 (x3)
212215  -7 2624  ZF2OO DL3YAT 73
212445  -7 2624  HS0ZOY DL3YAT JO31 (x2)
212530  -7  628  DL3YAT HS0ZOY -06
212545 -12 2624  HS0ZOY DL3YAT R-15
212600  -8  628  DL3YAT HS0ZOY RR73
212615  -7 2624  HS0ZOY DL3YAT 73

40m

UTC    dB Audio  Message
223215  -9  822  VJ6X DL3YAT R-20 (x2)
223700  -7  822  TF8KW DL3YAT JO31 (x5)
224230 -21 1634  DL3YAT IT9GJK/P -01
224245  -3  822  IT9GJK DL3YAT R-08
224300 -22 1634  DL3YAT IT9GJK/P RR73
224315  -6  822  IT9GJK DL3YAT 73
224430  -7  822  CE2SV DL3YAT JO31 (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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