PI4APD — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving PI4APD, decoded by SO8OO in southeastern Poland. 1,910 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-02.

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 1,910 FT8 messages attributed to PI4APD as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (70%), followed by 60 m (19%) and 40 m (6%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -4 dB.

Overview

1,910

Messages attributed

UTC dates decoded

151

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 1,330 60m · 367 40m · 108 20m · 105

First attributed message: 2026-06-06
Last attributed message: 2026-10-02 21:03 UTC

Observed FT8 message patterns

Attributed sample: 1,910 messages
Active dates: 55 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -16 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 197, moderate (-15 to -9 dB) 442, strong (≥ -8 dB) 1,271.

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 PI4APD in decoded directed-looking exchanges:

OZ6P · Denmark ×3 HA3GX · Hungary ×3 F1PPH · France ×2 F1LZV · France ×2 OE5WRO · Austria ×2 SP6EFY · Poland ×2 SP9GL · Poland ×2 SQ9KDO · Poland ×2 ON4MAP · Belgium ×2 A61FJ · United Arab Emirates BG5JGG · China BH2WTV · China

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 PI4APD

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 · 1,295 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,201 km (approx.)
Last such locator decoded: 2026-10-02 21:03 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	PI4APD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-02 20:59	80m	-1 / -11	EW1P	-6 / -20	2	Partial capture
10-02 20:51	80m	+2 / -	ON4MAP	-9 / +4	3	✓ Closing observed
10-02 20:46	40m	-9 / -	SP5MIG	- / -17	3	✓ Closing fragment
09-21 20:07	80m	- / -23	SV1DKR	+1 / -	5	Partial capture
09-21 20:04	80m	- / -22	R4HLO	-12 / -	4	✓ Closing fragment
09-21 20:02	80m	-10 / -18	RW4CB	+11 / 0	4	✓ Full exchange observed
09-09 21:40	80m	- / +8	HB3YBG	-6 / -	5	✓ Closing fragment
09-09 21:40	80m	- / +5	ON4MAP	-21 / -	3	✓ Closing fragment
09-09 21:38	80m	- / +10	OH1ZE	-3 / -	4	✓ Closing fragment
09-09 21:30	40m	+2 / -11	IU5VLR	0 / +9	5	✓ Full exchange observed
09-09 20:52	40m	-10 / -	V51WH	- / -	4	Partial capture
09-09 20:48	40m	-8 / -	UR4QWW	- / +3	2	Partial capture
09-09 20:47	40m	-8 / -4	R3PJV	-7 / +10	4	Partial capture
09-09 20:46	40m	- / -	DL9MY	+4 / -	3	Partial capture
09-09 20:45	40m	-4 / -	IU2SMB	-11 / +3	3	✓ Closing observed
09-09 20:43	40m	-2 / -4	IU2HUQ	-4 / +9	3	✓ Full exchange observed
09-09 20:40	40m	-12 / -	EA5RO	- / +7	2	✓ Closing fragment
09-08 21:55	40m	-22 / -	KC1YTV	- / -	2	Partial capture
09-08 21:42	40m	-16 / -	BI3UPU	- / -15	2	✓ Closing fragment
09-08 21:25	40m	- / -23	TA3NK	-10 / -	5	Partial capture
09-08 21:24	40m	- / -9	F1PBZ	+2 / -	4	Partial capture
08-29 23:22	80m	+5 / -11	ON6PL	-6 / +3	5	✓ Full exchange observed
08-25 16:52	20m	- / -3	OH6IH	-12 / -	2	✓ Closing fragment
08-25 16:50	20m	- / -16	A61FJ	-9 / -	3	✓ Closing fragment
08-25 16:41	20m	- / -	F4BYA	+10 / -	6	Partial capture
08-24 20:26	20m	-20 / -	BG7ZHS	-22 / -25	2	Partial capture
08-23 20:56	60m	-12 / -	PA3ANG	- / -25	2	✓ Closing fragment
08-23 20:55	60m	-11 / -	OZ1LGJ	-12 / +8	5	✓ Full exchange observed
08-20 16:01	20m	- / -12	F4NKF	+2 / -	5	✓ Closing fragment
08-20 16:00	20m	- / -8	CT1BFP	-12 / -	4	✓ Closing fragment
08-20 15:47	20m	-12 / -17	F1PPH	-4 / -16	12	✓ Full exchange observed
08-20 15:42	20m	- / -	DL1R	+6 / -	9	Partial capture
08-20 15:37	20m	- / -7	R9FDE/P	-13 / -	2	✓ Closing fragment
08-17 21:48	80m	- / +7	<...>	+2 / -	2	Partial capture
08-17 21:47	80m	-1 / -	R3SE	- / -16	5	✓ Closing fragment
08-17 21:40	80m	-5 / -	DO5UVB	-6 / +1	4	✓ Closing observed
08-17 21:40	80m	-7 / -	PG5FRL	-16 / +2	4	✓ Closing observed
08-17 21:37	80m	-5 / -1	OH3GKA	+4 / +1	9	✓ Full exchange observed
08-17 21:37	80m	-5 / +3	SP9HPI	+13 / -1	5	✓ Full exchange observed
08-16 21:05	80m	-2 / -6	DA6SHO	-7 / -2	3	✓ Full exchange observed
08-16 21:03	80m	-6 / -	M9XZY	-10 / -3	3	✓ Closing observed
08-16 21:00	80m	-7 / -12	R5AV	-5 / -13	8	✓ Full exchange observed
08-16 20:58	80m	-4 / -	EI4JFB	-21 / -5	4	✓ Closing observed
08-16 20:55	60m	-18 / +1	LX1LW	-11 / -2	4	✓ Full exchange observed
08-16 20:53	60m	-16 / -3	DL3BH	-14 / +4	5	✓ Full exchange observed
08-16 20:51	60m	-16 / -	EA5ZN	- / -4	2	✓ Closing fragment
08-16 20:50	60m	-16 / -2	SP6EFY	+2 / +6	5	✓ Full exchange observed
08-14 21:11	40m	-16 / -	4S7LGT	- / -22	4	Partial capture
08-14 21:05	80m	- / +3	DO9POL	-14 / -	2	Partial capture
08-14 20:54	80m	-2 / -	DF3YG	- / +7	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
205345 -16 1298  CQ PI4APD JO22                        a1 (x3)
205500 -11 1298  PI4APD OZ1LGJ JO46
205515 -10 1298  OZ1LGJ PI4APD +08
205530 -13 1298  PI4APD OZ1LGJ R+11
205545 -12 1299  OZ1LGJ PI4APD RR73
205600 -13 1298  PI4APD OZ1LGJ 73
205615 -12 1299  CQ PI4APD JO22
205645 -13 1298  PA3ANG PI4APD -25 (x2)
205845 -10 1298  CQ PI4APD JO22 (x4)

80m

UTC    dB Audio  Message
200900  -1 1944  PI4APD SV1DKR R-22 (x2)
205100  +4  920  CQ PI4APD JO22
205130  -1  982  ON4MAP PI4APD +04 (x2)
205215  +5  501  PI4APD RU3T LO16
205215  -9  298  PI4APD ON4MAP 73
205230  -2  982  CQ PI4APD JO22 (x6)
205915  -6 1304  PI4APD EW1P -11
205930  -1 1444  EW1P PI4APD R-20

40m

UTC    dB Audio  Message
213345  +9 1168  CQ PI4APD JO22 (x4)
201445  -3 1395  BG2ATH PI4APD JO22
201715  +0 1395  V51WH PI4APD JO22
204500  -5 1197  CQ PI4APD JO22 (x2)
204600  -8 1198  SP5MIG PI4APD -17 (x3)
204730  -5 1198  CQ PI4APD JO22 (x4)

20m

UTC    dB Audio  Message
201545 -17 1182  CQ PI4APD JO22
201615 -19 1182  BG2MGR PI4APD JO22
202600 -22 1426  PI4APD BG7ZHS RRR
202615 -20 1182  BG7ZHS PI4APD R-25
164130 +17 2918  PI4APD F4BYA JN19 (x6)
165045  -5 1852  PI4APD A61FJ -16 (x3)
165245 -10 3068  PI4APD OH6IH -03 (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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