PA0JDF — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving PA0JDF, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-22.

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 60 FT8 messages attributed to PA0JDF 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 (40%), followed by 40 m (35%) and 80 m (25%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (60%); the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 15 40m · 21 20m · 24

First attributed message: 2026-06-08
Last attributed message: 2026-09-22 06:02 UTC

Observed FT8 message patterns

Attributed sample: 60 messages
Active dates: 9 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 6.

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 PA0JDF in decoded directed-looking exchanges:

DG7CF · Fed. Rep. of Germany XE1TZP · Mexico

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 PA0JDF

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 · 52 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-09-22 06:02 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	PA0JDF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-22 06:01	80m	-19 / -	CT7AUT	- / -	3	Partial capture
09-22 05:56	80m	-23 / -	HI3RRR	- / -	3	Partial capture
09-22 05:51	80m	-18 / -	HI3RRR	- / -	4	Partial capture
09-22 05:49	80m	-14 / -	WD1V	- / -	2	Partial capture
09-22 05:35	40m	-14 / -	KJ5PTH	- / -	3	Partial capture
09-17 05:27	40m	-14 / -	LA7WNA	- / -	2	Partial capture
09-15 06:31	40m	-14 / -	KC9USW	- / -	2	Partial capture
09-15 06:03	40m	-19 / -	KC9USW	- / -	2	Partial capture
08-27 06:26	20m	0 / -	N0IDX	- / -	5	Partial capture
08-27 06:14	20m	-16 / -	NA6JD	- / -	2	Partial capture
08-27 06:11	20m	-18 / -	EU1BO	- / -23	4	Partial capture
08-27 06:07	20m	-21 / -	XE1TZP	-15 / -15	3	✓ Closing observed
08-26 06:02	40m	-17 / -	OA4ENG	- / -	4	Partial capture
08-26 05:49	40m	-15 / -	OA4ENG	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
052745 -22 1391  PA0JDF F1TXI -03
054830 -20 1630  HI3RRR PA0JDF JO22
054900 -16 1630  WD1V PA0JDF JO22 (x2)
055100 -15 1630  HI3RRR PA0JDF JO22 (x4)
055530 -22 1630  WD1V PA0JDF JO22
055630 -24 1629  HI3RRR PA0JDF JO22 (x3)
060115 -16 1630  CT7AUT PA0JDF JO22 (x3)

40m

UTC    dB Audio  Message
060215 -19 1666  OA4ENG PA0JDF JO22 (x4)
060300 -20 1666  KC9USW PA0JDF JO22 (x6)
052700 -13 1666  LA7WNA PA0JDF JO22 (x2)
053545 -17 1665  KJ5PTH PA0JDF JO22 (x3)

20m

UTC    dB Audio  Message
060730 -23 1703  XE1TZP PA0JDF R-15
060745 -15 1769  PA0JDF XE1TZP RR73
061100 -24 1703  EU1BO PA0JDF JO22 (x4)
061400 -18 1703  NA6JD PA0JDF JO22 (x2)
061845 -13 1703  5N0YEN PA0JDF R-23
062615  +5 1703  N0IDX PA0JDF JO22 (x5)
065700  -8 1704  VK2FZR PA0JDF JO22

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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