PD0U — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO22

Receiver-side FT8 activity involving PD0U, decoded by SO8OO in southeastern Poland. 850 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-08-28.

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 850 FT8 messages attributed to PD0U as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (19%) and 80 m (2%). The busiest six-hour window was 18:00-00:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

850

Messages attributed

UTC dates decoded

139

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 14 40m · 163 20m · 661 10m · 12

First attributed message: 2026-06-25
Last attributed message: 2026-08-28 22:08 UTC

Observed FT8 message patterns

Attributed sample: 850 messages
Active dates: 30 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to +4.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 180, moderate (-15 to -9 dB) 294, strong (≥ -8 dB) 376.

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 PD0U in decoded directed-looking exchanges:

YO5PHL · Romania ×2 9A4ZM · Croatia ×2 R4ML · European Russia ×2 PC2J · Netherlands ×2 SP6AXW · Poland HB9ETH · Switzerland 9A2EY · Croatia S56UVB · Slovenia PA2KV · Netherlands G0UDE · England OE9KFV · Austria YL2JZ · Latvia

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 PD0U

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: JO22 · 472 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-08-28 22:08 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	PD0U S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-27 13:06	20m	+5 / -	RI1FJL	- / -	9	Partial capture
08-26 17:21	20m	+9 / -	EX7DY	- / -	4	Partial capture
08-26 17:19	20m	+18 / -	TA1GRH	- / -	4	Partial capture
08-26 17:12	20m	+4 / -	ZS6KVZ	- / -	6	Partial capture
08-26 17:06	20m	-2 / -	EX7DY	- / -	4	Partial capture
08-25 21:57	20m	- / -	VE3NVK	-14 / -	2	Partial capture
08-25 21:56	20m	- / -11	KB9ZM	-15 / -	3	✓ Closing fragment
08-25 18:15	20m	- / -19	TA2ED	-13 / -	3	Partial capture
08-25 18:11	20m	+10 / -	VP2VKC	- / -	4	Partial capture
08-25 18:07	20m	+10 / -	YB9GAN	- / -	7	Partial capture
08-25 18:02	20m	+4 / -	EX7DY	- / -	5	Partial capture
08-25 18:00	20m	+3 / -	9K2MP	- / -	3	Partial capture
08-25 17:58	20m	+6 / -	EX7DY	- / -	2	Partial capture
08-25 17:54	20m	+8 / -	VP2VKC	- / -	4	Partial capture
08-23 00:34	20m	-17 / -	KE8LT	- / -14	5	Partial capture
08-23 00:31	20m	-6 / -	<...>	- / -16	2	Partial capture
08-23 00:30	20m	-8 / -	KD4SEV	- / -	2	Partial capture
08-23 00:12	20m	-14 / -	KT4DZ	- / -	2	Partial capture
08-23 00:10	20m	-12 / -	KM6UTC	- / -	2	Partial capture
08-23 00:08	20m	-17 / -	N7HD	- / -	2	Partial capture
08-23 00:06	20m	-10 / -	9Y4DG	- / -	2	Partial capture
08-23 00:01	20m	-12 / -	KJ5MJD	- / -	2	Partial capture
08-22 23:10	20m	-20 / -	KD9YUO	- / -	2	Partial capture
08-22 23:07	20m	- / -	9A3AUH	-1 / -	7	Partial capture
08-22 22:33	20m	-4 / -	W5ELD	- / -14	3	✓ Closing fragment
08-22 22:31	20m	-6 / -	KW9U	- / -16	3	✓ Closing fragment
08-22 22:30	20m	-16 / -	F8KIC/P	- / -	2	Partial capture
08-22 22:25	20m	-15 / -	AA8WZ	-19 / -9	4	✓ Closing observed
08-22 22:21	20m	-18 / -	CX6TU	- / -	2	✓ Closing fragment
08-22 22:19	20m	-8 / -	AB4KK	- / -7	2	Partial capture
08-22 22:18	20m	-9 / -	LB4PJ/MM	- / -	2	Partial capture
08-22 22:08	20m	-8 / -	JA4JKO	- / -	2	Partial capture
08-22 22:06	20m	-18 / -	CE4JVU	- / -	2	Partial capture
08-22 22:02	20m	-12 / -9	EI2KVB	-15 / -6	7	✓ Full exchange observed
08-22 19:35	20m	- / -	F5RRS	+5 / -	4	Partial capture
08-22 19:34	20m	-15 / -14	UA4POO	-6 / -10	5	✓ Full exchange observed
08-22 19:21	20m	-21 / -	EA2WX/P	- / -	2	Partial capture
08-22 19:20	20m	- / -11	LZ1WV	+14 / -	2	✓ Closing fragment
08-22 19:12	20m	-15 / -	TA3GO	-8 / -	2	✓ Closing observed
08-22 19:06	20m	-14 / -18	R4HLM	-5 / -16	3	✓ Full exchange observed
08-22 19:02	20m	- / -11	JA1PSS	-6 / -	2	✓ Closing fragment
08-22 19:00	20m	-8 / -14	R5AJ	-6 / -8	3	Partial capture
08-22 18:56	20m	-7 / -	DM2DXA	- / -7	3	✓ Closing fragment
08-22 18:50	20m	-4 / -	N1NRL	- / -21	3	✓ Closing fragment
08-22 18:46	20m	-14 / -14	RV6HEG	-8 / -	4	✓ Closing observed
08-22 18:45	20m	-17 / -	W1MKC	- / -18	2	Partial capture
08-22 18:42	20m	-8 / -	RU3AMO	- / -	2	Partial capture
08-22 18:25	20m	-13 / -	KE2UK	- / -11	3	✓ Closing fragment
08-21 07:41	40m	- / -	UT4PA	-3 / -	4	Partial capture
08-21 07:38	40m	- / -	OE2VDL	-20 / -	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
172245  +7 1512  EX7DY PD0U JO22 (x2)
172345 +11  959  II7MGXX PD0U JO22
130615  +5  465  RI1FJL PD0U JO22 (x9)
012330 -11 2593  PD0U <...> -10
012600 -10 2593  PD0U AE5MM 73
220845 -16  729  Z62NS PD0U JO22

40m

UTC    dB Audio  Message
072700  -1 1881  PD0U UT4PA KO20
073800 -20 2184  PD0U OE2VDL JN67 (x3)
074100  -9 2009  PD0U UT4PA KO20
074100 -19 1779  PD0U OE2VDL JN67 (x2)
074130  +3  509  PD0U UT4PA KO20 (x2)
074200 -20 1967  PD0U OE2VDL JN67
074230  -7  508  PD0U UT4PA KO20
074330 -24 1967  PD0U OE2VDL JN67
215830  -2  484  CT3MD PD0U JO22
220115  -6  638  WY5I PD0U JO22
020215  -3 1209  CQ PD0U JO22

10m

UTC    dB Audio  Message
105045 -14 1576  EX8ABR PD0U -12 (x2)
105145 -14 1575  CQ PD0U JO22 (x3)
105315  -8 1880  CU3HN PD0U -14
105615  +1  848  D2UY PD0U -15
105645 -16  849  YD0ATZ PD0U -09 (x2)
105745 -16 1495  7Q6UJ PD0U -14 (x2)
105945 -24 1495  M7HET PD0U -02

80m

UTC    dB Audio  Message
000700  -1 1220  PD0U DL9KM JN68
000715 +10 1802  DL9KM PD0U -02
000730  +0 1220  PD0U DL9KM JN68
000745 +11 1802  DL9KM PD0U +00
000815 +11 1802  CQ PD0U JO22
000830 +11 1534  PD0U HA7TM JN97
000830 -23  500  PD0U OO0O JO11
000830  -1 2338  PD0U IQ4JO JN63
000845 +12 1802  OO0O PD0U -25
000900 -14  499  PD0U OO0O R-05
000930 +10 1534  PD0U HA7TM R+02
000930 -22  499  PD0U OO0O R-05
000945 +12 1802  OO0O PD0U RR73
001030  -3 1434  PD0U OK1HEH RR73
001100 +13 1801  PD0U YO2LIM KN16

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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