PA3ADU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO32

Receiver-side FT8 activity involving PA3ADU, decoded by SO8OO in southeastern Poland. 104 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 2026-07-30.

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 104 FT8 messages attributed to PA3ADU as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 10 m (44%). Most decodes (57%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.

Overview

104

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 58 10m · 46

First attributed message: 2026-06-08
Last attributed message: 2026-07-30 18:05 UTC

Observed FT8 message patterns

Attributed sample: 104 messages
Active dates: 9 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -14 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 68.

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 PA3ADU in decoded directed-looking exchanges:

4X1UF · Israel EA3DYI · Spain IZ0ZIP · Italy UA4FKT · European Russia UX2SB · Ukraine YO9SW · Romania BG5BNW · China BI1TX · China JA4MOK · Japan OK1UOZ · Czech Republic TA3ZGR · Asiatic Turkey DL9KM · 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 PA3ADU

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: JO32 · 49 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,067 km (approx.)
Last such locator decoded: 2026-07-30 18:04 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	PA3ADU S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-30 18:02	10m	-6 / -	EA3DYI	- / +6	4	✓ Closing fragment
07-30 18:01	10m	0 / -	YO9SW	- / -	2	✓ Closing fragment
07-30 17:58	10m	-7 / -	PY8ZB	- / -	3	Partial capture
07-29 19:59	20m	- / -	IW2DNI	+2 / -	4	Partial capture
07-27 20:13	20m	-10 / -	OE5FIL	- / -24	2	Partial capture
07-27 20:09	20m	-10 / -	JA4MOK	- / -4	2	✓ Closing fragment
07-24 21:12	20m	+2 / -	BV7RR	- / -	2	Partial capture
07-24 20:56	20m	+2 / -	BG5BNW	- / -15	2	✓ Closing fragment
07-24 20:55	20m	+1 / -	OK1UOZ	- / +9	2	✓ Closing fragment
07-24 20:54	20m	-1 / -	TA3ZGR	- / -8	2	✓ Closing fragment
07-24 20:52	20m	+2 / -	BI1TX	- / -12	4	✓ Closing fragment
07-23 07:26	10m	-13 / -	UA4FKT	- / +10	2	✓ Closing fragment
07-22 15:00	40m	- / -	DL9KM	-19 / -	2	✓ Closing fragment
06-24 16:42	10m	-2 / -	UX2SB	- / -	2	✓ Closing fragment
06-24 16:38	10m	+6 / -	4X1UF	- / -6	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
175815  -6 2425  PY8ZB PA3ADU JO32 (x3)
175945  -4 2424  CQ PA3ADU JO32 (x3)
180115  +1 2424  YO9SW PA3ADU +19 (x2)
180215  -4 2424  CQ PA3ADU JO32
180245  -1 2424  EA3DYI PA3ADU +06 (x4)
180445  -6 2424  CQ PA3ADU JO32
180545  +1 2424  IZ0ZIP PA3ADU 73

20m

UTC    dB Audio  Message
205530  -2 2566  OK1UOZ PA3ADU +09 (x2)
205630  +3 2566  BG5BNW PA3ADU -15 (x2)
211245  +1 2566  BV7RR PA3ADU JO32 (x2)
200845 -11 2565  CQ PA3ADU JO32
200915 -11 2565  JA4MOK PA3ADU R-04 (x2)
201315  -8 2565  OE5FIL PA3ADU -24 (x2)
195930  +3  583  PA3ADU IW2DNI JN45 (x4)

40m

UTC    dB Audio  Message
150030 -16 2134  PA3ADU DL9KM JN68 (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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