PD0JHM — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving PD0JHM, decoded by SO8OO in southeastern Poland. 407 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-14.

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 407 FT8 messages attributed to PD0JHM as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 20 m (8%) and 10 m (4%). Most decodes (65%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

407

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 360 20m · 32 10m · 15

First attributed message: 2026-06-08
Last attributed message: 2026-10-14 17:34 UTC

Observed FT8 message patterns

Attributed sample: 407 messages
Active dates: 40 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -21 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 106, moderate (-15 to -9 dB) 130, strong (≥ -8 dB) 171.

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 PD0JHM in decoded directed-looking exchanges:

G5STU · England ×2 EA4EQ · Spain IK4LZH · Italy 9A5MTV · Croatia CS8ABF · Azores TN8GD · Republic of the Congo 9A3MRN · Croatia 9A9N · Croatia 9A9TT · Croatia CN8NS · Morocco CT2FFC · Portugal CT2GQA · Portugal

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 PD0JHM

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 · 231 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-10-13 16:59 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	PD0JHM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 17:34	40m	- / +9	IZ3EAW	-5 / -	5	✓ Closing fragment
10-13 16:59	40m	-6 / -	PA0KPJ	- / -	2	Partial capture
10-13 16:51	40m	-6 / -	R2DA	- / -	2	Partial capture
10-13 16:50	40m	-8 / +10	M7IUN	-15 / +4	4	✓ Full exchange observed
10-13 16:46	40m	-3 / -	OZ1AKN	-24 / +8	5	✓ Closing observed
10-12 17:59	40m	-9 / -	JA4FKX	- / -10	3	✓ Closing fragment
10-12 17:55	40m	-14 / -	Z62NS	- / -	2	Partial capture
10-08 13:46	40m	- / -13	SP4BB	-11 / -	2	✓ Closing fragment
10-08 13:44	40m	- / -1	S55A	-16 / -	2	✓ Closing fragment
10-07 17:15	40m	-11 / -	OH3DJP	- / -	3	Partial capture
10-07 16:52	40m	-18 / -	VJ6X	- / -	2	Partial capture
10-05 17:21	40m	-7 / -	EX7CQ	- / -3	4	✓ Closing fragment
10-05 17:17	40m	-3 / -	OE7FTI	- / -10	3	✓ Closing fragment
10-03 14:36	40m	-18 / -	EX7CQ	- / -	3	Partial capture
10-02 21:49	40m	-6 / -	9A9N	- / +5	3	✓ Closing fragment
10-02 21:43	40m	- / -14	EA6TU	-10 / -	2	✓ Closing fragment
10-01 18:27	40m	- / +3	IK2SND	-10 / -	2	✓ Closing fragment
10-01 15:31	40m	-14 / -	DL1TRK	- / -	2	✓ Closing fragment
09-29 14:49	40m	-9 / -	PD3JB	- / +2	3	Partial capture
09-28 17:57	40m	-8 / -	M3VNI	- / -	2	Partial capture
09-28 17:54	40m	-6 / -	OK1PHM	-11 / +3	4	✓ Closing observed
09-28 17:52	40m	-10 / -4	DK5DW	-4 / +3	4	✓ Full exchange observed
09-28 17:48	40m	-1 / +2	IK4TVP	-16 / -	5	✓ Closing observed
09-28 17:45	40m	-7 / -	MM9SCT	- / +1	2	✓ Closing fragment
09-28 17:43	40m	-4 / -4	YT2ZE	-6 / -7	4	✓ Full exchange observed
09-28 17:41	40m	-1 / -14	RD3FY	-10 / 0	4	Partial capture
09-28 17:38	40m	-10 / -	G0XLX	- / -4	3	✓ Closing fragment
09-28 14:57	40m	- / -5	DM3ER	-4 / -	3	Partial capture
09-28 14:55	40m	-11 / -	DC9GT	- / +1	2	✓ Closing fragment
09-28 14:54	40m	-22 / -	PB5DX	-17 / -	3	✓ Closing observed
09-28 14:52	40m	- / -3	IV3XPP	-10 / -	2	✓ Closing fragment
09-28 11:50	40m	- / -1	9A3MRN	-14 / -	2	✓ Closing fragment
09-25 14:54	40m	-13 / +10	DC2SF/P	-8 / -	3	✓ Closing observed
09-23 15:35	40m	- / +9	SH6ECJ	-20 / -	2	✓ Closing fragment
09-23 15:32	40m	- / +4	DG1KFR	-8 / -	2	Partial capture
09-23 15:30	40m	- / -	DL1BIB	-12 / -	2	✓ Closing fragment
09-23 15:23	40m	-12 / -	DH0ZAL	- / -5	2	✓ Closing fragment
09-23 15:17	40m	- / -18	IU1PJO	-21 / -	3	Partial capture
09-23 15:15	40m	- / -14	YO9PH	+9 / -	2	✓ Closing fragment
09-23 15:14	40m	- / +3	F4PCM	-14 / -	2	✓ Closing fragment
09-23 15:12	40m	- / -	DK0HB	-19 / -	3	✓ Closing fragment
09-23 15:10	40m	-2 / -	PI4TX	-19 / +8	3	✓ Closing observed
09-23 15:09	40m	- / -11	F1IQH	-20 / -	2	Partial capture
09-23 14:32	40m	-13 / -	HB9ELE	+2 / -	3	✓ Full exchange observed
09-23 14:29	40m	-11 / -	DL6TNT/P	- / -	3	✓ Closing fragment
09-23 14:28	40m	-10 / -	PD2AVD	- / -	3	Partial capture
09-21 16:21	40m	-5 / 0	OK1JPO	+6 / -	3	✓ Closing observed
09-20 12:30	40m	-22 / +9	DA3W	-19 / -	2	✓ Closing observed
09-20 12:22	40m	-17 / -	G0WTZ	- / -	3	Partial capture
09-19 11:50	40m	-21 / -	PA5MB/QRP	- / -3	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
165000 -14 1098  PD0JHM M7IUN +10
165015  -8 1442  M7IUN PD0JHM R+04
165030 -16 1098  PD0JHM M7IUN RR73
165045  -9 1442  M7IUN PD0JHM 73
165115  -6 1442  R2DA PD0JHM JO22 (x2)
165915  -6 1439  PA0KPJ PD0JHM JO22 (x2)
173400  -5 1435  CT2GQA PD0JHM RR73
173415  -5 1435  PD0JHM IZ3EAW JN55
173445  -2 2591  PD0JHM R2EA -13
173445  -5 1435  PD0JHM IZ3EAW JN55 (x4)

20m

UTC    dB Audio  Message
185945 -24 1712  R1QD PD0JHM JO22
170815  -8 1123  PD0JHM CS8ABF +02 (x2)
174415  -8 1659  EX7CQ PD0JHM JO22 (x6)
140815 -13 2094  PD0JHM UA4COA -02 (x2)
140945  -6 1575  PD0JHM 9A5MTV -08 (x2)
141030 -11 1662  9A5MTV PD0JHM R-11
141045  -4 1575  PD0JHM 9A5MTV RR73

10m

UTC    dB Audio  Message
135615  -6  489  PD0JHM IK4LZH RR73
092215 -12  681  RN1TV PD0JHM R-11
131230  -9 1270  EA4EQ PD0JHM JO22 (x3)

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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