PD1JH — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving PD1JH, decoded by SO8OO in southeastern Poland. 373 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-06 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 373 FT8 messages attributed to PD1JH as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 40 m (20%) and 10 m (19%). Most decodes (57%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

373

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 74 20m · 229 10m · 70

First attributed message: 2026-06-06
Last attributed message: 2026-09-12 14:03 UTC

Observed FT8 message patterns

Attributed sample: 373 messages
Active dates: 25 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 101, moderate (-15 to -9 dB) 159, strong (≥ -8 dB) 113.

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 PD1JH in decoded directed-looking exchanges:

F1PBZ · France ×2 RN6MA · European Russia ×2 UR5WCS · Ukraine ×2 CN2DX · Morocco EA3DYI · Spain EA5BH · Spain F4GAJ · France F5CUN · France IK4RVY · Italy LA2JKA · Norway SP6M · Poland Z33C · North Macedonia

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 PD1JH

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 · 232 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-09-12 14:03 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	PD1JH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-06 09:47	40m	- / -	HA3HZ	-10 / -	4	Partial capture
09-06 09:41	40m	- / -	HA3HZ	-9 / -	6	Partial capture
09-06 09:29	40m	- / -	HA3HZ	-2 / -	2	Partial capture
09-06 09:29	40m	- / -8	SP6K	-12 / -	4	✓ Closing fragment
09-06 09:22	40m	-23 / -	PA8DC	- / -1	2	✓ Closing fragment
08-23 07:02	20m	-12 / -	R9SB	- / -	6	Partial capture
08-23 07:00	20m	-8 / -19	UD8S	-15 / -21	4	Partial capture
08-23 06:55	20m	-13 / -	N8HRZ	- / -17	5	✓ Closing fragment
08-21 17:43	20m	-14 / -	EX7CQ	- / -	5	Partial capture
08-18 15:14	20m	- / -9	UA9SHH	-12 / -	2	✓ Closing fragment
08-17 12:24	20m	-8 / -	UR5WCS	- / +1	4	✓ Closing fragment
08-16 12:56	20m	-17 / -	DL1R	-4 / -6	14	Partial capture
08-16 12:53	20m	-19 / +2	DL1RAZ	-14 / -5	3	Partial capture
08-16 07:10	20m	-17 / -12	OK1DBE	+1 / -	4	✓ Closing observed
08-16 07:06	20m	-14 / -18	YU5DR	-12 / -8	8	Partial capture
08-16 06:54	20m	- / -14	RA3DAD	-14 / -	2	Partial capture
08-15 19:42	20m	-6 / -	IK4POG	- / -16	3	✓ Closing fragment
08-14 09:12	20m	- / -4	T77RN	-10 / -	2	✓ Closing fragment
08-14 07:54	20m	-18 / -	TN8GD	- / -	2	Partial capture
08-11 11:27	10m	- / -8	F4NJZ	-17 / -	5	Partial capture
07-31 08:32	20m	-4 / -20	YT1KN	-18 / -11	6	✓ Full exchange observed
07-31 08:27	20m	-13 / -	F1PPH	- / -6	3	Partial capture
07-31 08:18	20m	-13 / -1	OE4PHB	-12 / -	2	Partial capture
07-31 08:07	20m	-6 / -	SV9MBH	- / -15	11	Partial capture
07-31 08:05	20m	-6 / -	OK1LTV	- / -11	2	Partial capture
07-27 21:59	40m	-14 / -	UA9SY	- / -6	2	✓ Closing fragment
07-27 21:57	40m	-16 / -16	RU1QD	-24 / -2	3	Partial capture
07-27 21:55	40m	-13 / -	Z62NS	- / -	2	Partial capture
07-27 21:53	40m	-12 / -	DM8ET	- / 0	2	✓ Closing fragment
07-27 21:50	40m	-10 / -12	RN6MA	-12 / +1	4	✓ Full exchange observed
07-27 21:49	40m	-12 / -4	9A3AUH	-7 / +4	3	✓ Full exchange observed
07-27 21:48	40m	-12 / -	RX9ABI	- / -2	2	✓ Closing fragment
07-27 21:46	40m	-9 / -	PD7RON	- / -4	3	✓ Closing fragment
07-27 21:44	40m	-11 / -	UN7PPV	- / -6	2	Partial capture
07-27 21:41	40m	-11 / -	0S5BUY	- / -13	3	Partial capture
07-27 21:35	40m	- / -20	DH5BM	-8 / -	2	✓ Closing fragment
07-27 21:16	20m	-12 / -	UT5MD	- / +6	2	Partial capture
07-27 21:06	20m	+6 / -	9J2FI	- / -9	5	✓ Closing fragment
07-27 20:57	20m	-6 / -	VO1ACZ	- / -19	2	✓ Closing fragment
07-27 20:51	20m	-10 / -	EX8ABR	- / -	3	Partial capture
07-27 20:35	20m	-7 / -	F1IQH	- / -10	2	✓ Closing fragment
07-27 20:24	20m	-4 / -	HB9CEY	- / -12	3	✓ Closing fragment
07-18 19:36	20m	- / -15	JH5AVM	-18 / -	3	Partial capture
07-18 17:53	10m	-16 / +1	IK4RVY	-16 / -	5	✓ Full exchange observed
07-18 09:53	20m	- / -14	F1PBZ	-12 / -	2	✓ Closing fragment
06-26 17:56	10m	-15 / -	LA2JKA	- / -	3	✓ Closing fragment
06-26 17:50	10m	-12 / -	EA5BH	- / -23	2	✓ Closing fragment
06-26 17:48	10m	-15 / -	OE3DXA	- / -11	3	Partial capture
06-26 17:41	10m	-12 / -	EA3DYI	- / -6	2	✓ Closing fragment
06-26 15:18	20m	- / -23	SP1EG	-5 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
094215  -7 2535  PD1JH HA3HZ JN96 (x6)
094800 -24 1440  CQ PD1JH JO22                         a1
094915 -12 2534  PD1JH HA3HZ JN96 (x3)
134545 -20 1357  PD1JH ON1DGN -06
135845 -21 1596  PD1JH DL1SRS R-06
140200 -19 1439  CQ PD1JH JO22 (x3)

20m

UTC    dB Audio  Message
065545 -12 1284  N8HRZ PD1JH JO22 (x5)
070000  -9 1284  UD8S PD1JH JO22 (x2)
070045 -15 2258  PD1JH UD8S -19
070100  -8 1284  UD8S PD1JH R-21
070230 -10 1284  R9SB PD1JH JO22 (x6)

10m

UTC    dB Audio  Message
211430 -15  913  PD1JH ZA5G -13
092315 -20 1051  CQ PD1JH JO22                         a1
175300 -17 2144  IK4RVY PD1JH JO22
175315 -16 2144  PD1JH IK4RVY +01
175330 -16 2144  IK4RVY PD1JH R+11
175345 -16 2144  PD1JH IK4RVY RR73
175400 -16 2144  IK4RVY PD1JH 73
183100 -24 1910  PD1JH Z33C RR73
112100  +5 2739  PD1JH F1PBZ RR73
112700 -21 1964  PD1JH F4NJZ -08 (x5)
135545 -16 2328  PD1JH HB9OAB JN46

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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