PD0DNA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving PD0DNA, decoded by SO8OO in southeastern Poland. 391 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-09-12.

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 391 FT8 messages attributed to PD0DNA as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 20 m (17%) and 10 m (2%). Most decodes (82%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

391

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 318 20m · 65 10m · 8

First attributed message: 2026-07-07
Last attributed message: 2026-09-12 23:11 UTC

Observed FT8 message patterns

Attributed sample: 391 messages
Active dates: 23 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 88, moderate (-15 to -9 dB) 167, strong (≥ -8 dB) 136.

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 PD0DNA in decoded directed-looking exchanges:

F8FUA · France ×2 RL6MT · European Russia ×2 SP6JIU · Poland ×2 OH6FSO · Finland ×2 RY4D · European Russia ×2 YO6LM · Romania 5P1KZX · Denmark 9A5E · Croatia 9K2GR · Kuwait AA1SU · United States E75C · Bosnia-Herzegovina E75W · Bosnia-Herzegovina

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 PD0DNA

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: JO21 · 47 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-09-12 23:11 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	PD0DNA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 23:13	40m	- / -12	R3RRC/P	-12 / -	2	✓ Closing fragment
09-16 14:32	40m	- / -4	G0RVY	-8 / -	2	✓ Closing fragment
09-16 00:58	40m	- / -13	PI4DX	-4 / -	2	✓ Closing fragment
09-16 00:03	40m	- / -17	KB3Z	-13 / -	3	✓ Closing fragment
09-13 17:52	40m	- / -17	YU65AEC	+12 / -	3	Partial capture
09-13 17:50	40m	- / -12	PD9HIX	-2 / -	2	✓ Closing fragment
09-12 23:10	40m	-5 / -	IT9ACJ	- / -	2	Partial capture
09-12 23:07	40m	-16 / -	IW0RGU	- / -11	2	✓ Closing fragment
09-12 22:56	40m	-6 / -	KB1EFS	- / -	2	Partial capture
09-12 22:53	40m	-11 / -	9A5E	- / -	2	Partial capture
09-12 22:50	40m	0 / -12	EA7R	-10 / -7	4	✓ Full exchange observed
09-12 22:49	40m	-10 / -	TN8GD	- / -	2	Partial capture
09-12 22:46	40m	-2 / -18	HF100PKP	+8 / -	2	Partial capture
09-12 22:41	40m	-16 / -18	EA1Y	-9 / -12	3	Partial capture
09-12 22:38	40m	-6 / -	KB1EFS	- / -	2	Partial capture
09-12 22:36	40m	-12 / -8	II8IHBC	-8 / -1	3	Partial capture
09-12 22:35	40m	-8 / -15	II9IAGM	-6 / -12	4	Partial capture
09-12 22:31	40m	0 / -	EA7R	- / -	2	Partial capture
09-11 17:36	40m	-14 / -11	OH3OJ	-6 / -8	4	✓ Full exchange observed
09-11 17:35	40m	-14 / -15	RK3YWA	-6 / -14	8	✓ Full exchange observed
09-10 22:16	40m	- / -7	II0CDS	-7 / -	2	Partial capture
09-10 21:58	40m	- / -13	LZ1ZF	-18 / -	2	Partial capture
09-10 21:51	40m	-20 / -	IQ4JO	- / -14	2	Partial capture
09-10 21:39	40m	-9 / -	SA6LDQ	- / -7	4	Partial capture
09-10 21:36	40m	-12 / -	LZ1ZF	- / -15	4	Partial capture
09-10 21:34	40m	-12 / -	R4ZZ	- / -8	3	✓ Closing fragment
09-10 21:31	40m	-16 / -	5B4AMM	- / -5	2	Partial capture
09-09 19:35	40m	- / -15	OK2VCR	0 / -	3	✓ Closing fragment
09-09 19:33	40m	-19 / -6	DL3KAV	-8 / -4	4	✓ Full exchange observed
09-09 19:09	40m	- / -17	PA5DL	-14 / -	4	✓ Closing fragment
09-09 19:06	40m	- / -17	UB2FDL	-7 / -	3	Partial capture
09-09 19:03	40m	-10 / -	R4CHN	- / -12	2	Partial capture
09-04 22:24	40m	-10 / -	VA3WW	- / -15	3	Partial capture
09-04 22:20	40m	-6 / -	W1FAM	- / -22	2	Partial capture
09-04 22:16	40m	-10 / -	RC9OC	- / -19	2	Partial capture
09-04 22:10	40m	-13 / -	RK5M	+3 / -	3	✓ Closing observed
09-04 22:08	40m	-17 / -	YO2CIP	- / -12	2	✓ Closing fragment
09-04 22:06	40m	-14 / -13	RX4SA	-17 / -6	5	✓ Full exchange observed
09-04 22:05	40m	-9 / -	SP2ZST	- / -16	2	✓ Closing fragment
09-04 22:04	40m	-9 / -2	UW5IM	-8 / -2	3	✓ Full exchange observed
09-04 22:00	40m	-4 / -	LA1KUA	- / -	2	✓ Closing fragment
09-04 21:58	40m	- / -7	I1RJP	-6 / -	2	✓ Closing fragment
09-04 21:56	40m	-17 / -	RX4SA	- / -10	2	Partial capture
09-04 21:50	40m	-6 / -8	EB3DBR	-8 / -11	4	✓ Full exchange observed
09-03 23:44	40m	-4 / -8	R2SL	+10 / -6	4	✓ Full exchange observed
09-03 23:43	40m	-9 / -	TN8GD	- / -16	2	Partial capture
09-03 23:32	40m	-7 / -	UG0B	- / -14	3	✓ Closing fragment
09-03 23:30	40m	-4 / -	K3ZK	- / -10	2	Partial capture
09-03 23:26	40m	-7 / -	N1SK	- / -5	2	Partial capture
09-03 23:25	40m	-6 / -	OH6FSO	- / -15	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
175030  -2  989  PD0DNA PD9HIX RR73
175230 +12 2963  PD0DNA YU65AEC -17 (x3)
233915  +0  839  PD0DNA EB5BZM -12
000315 -13 2221  PD0DNA KB3Z FN20 (x3)
005800  -5 2326  PD0DNA PI4DX -13 (x2)
143230  -6  676  PD0DNA G0RVY -04 (x2)
223900 -16 1201  PD0DNA II9IAGM -11
231345 -14 1870  PD0DNA R3RRC/P -12 (x2)

20m

UTC    dB Audio  Message
091915 -14 2573  RL6MT PD0DNA -13
091930 +16 2572  PD0DNA RL6MT R-09
091945 -12 2573  RL6MT PD0DNA RR73
092000 +14 2572  PD0DNA RL6MT 73
092015 -16 1203  EU2Q PD0DNA -12
092030  +7 1877  PD0DNA R1530IG R-25
092215 -22 1650  EA1ELV PD0DNA RR73
092400  +0 1877  PD0DNA R1530IG R-11
092500 -13 2199  E75W PD0DNA -10 (x2)
220500 -10 2417  PD0DNA UN0GY R-16 (x5)

10m

UTC    dB Audio  Message
171630 -24 1922  IW6CHN PD0DNA -19
192800 -22 1877  XQ3SK PD0DNA -15
192900 -15 2235  YO6LM PD0DNA RR73
192930 -13  779  EA1KCU PD0DNA -11
193115 -19 1766  LZ2CC PD0DNA -08
193245 -22 1626  EA8DKE PD0DNA -13
193415 -12  980  LU2EI PD0DNA -18
194015 -23 1434  CE3OQA PD0DNA -12

80m

UTC    dB Audio  Message
005530 -18 1429  PD0DNA 9A4ZM JN86 (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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