IU4PPL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving IU4PPL, decoded by SO8OO in southeastern Poland. 1,738 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-06.

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 1,738 FT8 messages attributed to IU4PPL as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 10 m (31%) and 40 m (15%). Most decodes (58%) 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 -12 dB.

Overview

1,738

Messages attributed

UTC dates decoded

344

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 7 40m · 265 20m · 933 10m · 533

First attributed message: 2026-06-06
Last attributed message: 2026-09-06 17:26 UTC

Observed FT8 message patterns

Attributed sample: 1,738 messages
Active dates: 80 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 507, moderate (-15 to -9 dB) 708, strong (≥ -8 dB) 523.

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 IU4PPL in decoded directed-looking exchanges:

IZ2DPX · Italy ×3 PD0IFI · Netherlands ×2 UA9SAV · Asiatic Russia ×2 UA9CMN · Asiatic Russia ×2 US1VS · Ukraine ×2 DK8HC · Fed. Rep. of Germany ×2 UV1IX · Ukraine ×2 PE9JAN · Netherlands ×2 CT7AUT · Portugal ×2 EA3HMM · Spain ×2 IU7HDQ · Italy ×2 IW2OHP · Italy

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 IU4PPL

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: JN54 · 1,108 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-09-06 17:18 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	IU4PPL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-06 17:24	40m	-4 / -	EA3HMM	- / -	2	✓ Closing fragment
09-06 17:22	40m	-3 / -	PD0PHA	-13 / -19	5	✓ Closing observed
09-06 17:22	40m	-1 / -	F5MXH	-7 / -	2	✓ Closing observed
09-06 17:20	40m	- / -4	OE9IHR	-10 / -	4	✓ Closing fragment
09-06 17:18	40m	-16 / -11	IK4LDS	+2 / -	4	✓ Full exchange observed
09-06 17:14	40m	-8 / -	EA5PG	- / -	3	✓ Closing fragment
09-06 09:31	10m	- / -14	EX8ABQ	-20 / -	2	Partial capture
09-05 11:20	40m	- / -21	PA3GAE	-15 / -	3	✓ Closing fragment
09-05 10:35	40m	- / -5	9A3MYL	-17 / -	3	Partial capture
09-05 10:29	40m	- / +7	IK2BUF	-22 / -	2	✓ Closing fragment
09-01 17:21	40m	-10 / -	IU7SQV	- / -	3	Partial capture
09-01 17:12	40m	-14 / -	S56IAR	- / +10	3	✓ Closing fragment
08-31 17:32	20m	-6 / +2	DF8TN	-14 / -	3	✓ Closing observed
08-31 17:25	20m	- / -1	M9LDX	-7 / -	3	✓ Closing fragment
08-31 17:16	20m	-6 / -	EC7B	- / -	2	✓ Closing fragment
08-31 17:12	20m	-6 / -	YO4ASD	- / -	2	Partial capture
08-31 17:10	20m	-8 / -	SM0WLL	- / +7	2	✓ Closing fragment
08-31 17:05	20m	-6 / -24	9A170NT	+4 / -13	3	Partial capture
08-30 07:24	40m	-20 / -	OE1SGS	- / -	2	Partial capture
08-30 07:21	40m	-14 / -13	DG4FFF	-10 / +6	6	✓ Full exchange observed
08-29 21:54	40m	-11 / -	YU4OCC	- / -	3	Partial capture
08-29 21:51	40m	- / -	EA5HM	-4 / -	3	Partial capture
08-29 21:41	40m	+4 / -	R4WZ	- / -	2	Partial capture
08-29 21:35	20m	- / -19	9A4V	-10 / -	2	✓ Closing fragment
08-29 18:48	20m	- / -4	7X3WPL	-13 / -	2	Partial capture
08-29 18:43	20m	-12 / -	IK2GSR	- / -	2	Partial capture
08-29 18:36	20m	-2 / -12	7Z1MM	-8 / -	2	✓ Closing observed
08-29 07:52	20m	-10 / -17	LZ1FBI	+3 / -	7	✓ Full exchange observed
08-29 07:50	20m	-9 / -	WA4FU	- / -	3	Partial capture
08-29 07:47	20m	-5 / -	YS1GMV	- / -	5	Partial capture
08-29 07:43	20m	-15 / -	IZ8GGE	- / -	4	Partial capture
08-29 07:39	20m	-9 / -	EA8DHQ	- / -	2	Partial capture
08-29 07:36	20m	-12 / -	LA0FA	- / -	2	Partial capture
08-29 07:34	20m	-4 / -	TA2CAX/P	- / +1	2	Partial capture
08-29 07:19	20m	-2 / -	YS1GMV	- / -	2	Partial capture
08-28 23:02	20m	-5 / -	WB8YJF	- / -	2	Partial capture
08-28 22:43	20m	+3 / -	LY5A	- / +3	4	✓ Closing fragment
08-28 22:41	20m	0 / -	BI3UPU	- / -	2	Partial capture
08-28 22:39	20m	-8 / -	KA8OAT	- / -	4	Partial capture
08-28 22:10	20m	- / -11	CT2IGO	-5 / -	5	Partial capture
08-28 21:59	20m	-11 / -17	JY5IB	-4 / -	2	Partial capture
08-28 21:56	20m	-1 / -	N8PFK	- / -	2	Partial capture
08-28 21:53	20m	-4 / -7	4Z5AY	+6 / -9	3	✓ Full exchange observed
08-28 21:48	20m	-9 / -	R4AAR	- / -11	7	✓ Closing fragment
08-28 21:45	20m	-6 / -	W4BRC	- / -8	4	Partial capture
08-28 11:21	20m	-8 / -	F8STC	- / -	2	✓ Closing fragment
08-28 11:17	20m	-8 / -	SQ8AA	- / -6	2	✓ Closing fragment
08-28 11:13	10m	- / +2	PE9JAN	-4 / -	5	✓ Closing fragment
08-28 11:00	10m	- / -21	OO6P	-14 / -	3	Partial capture
08-28 10:04	10m	-10 / -	DK5EO	- / -14	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
172000 -15 1622  IK4LDS IU4PPL R+24
172015 -13 1010  IU4PPL OE9IHR -04
172015  +0 1622  IU4PPL IK4LDS RR73
172045 -13 1010  IU4PPL OE9IHR -04 (x3)
172215  -7 1009  IU4PPL F5MXH JN07
172245 -13 2708  IU4PPL PD0PHA JO32
172330  -1 1008  F5MXH IU4PPL RR73
172400  +0 2708  PD0PHA IU4PPL RR73
172430  -5  361  EA3HMM IU4PPL +27
172500  +1 2709  PD0PHA IU4PPL R-19
172530  -4  360  EA3HMM IU4PPL RR73
172600  -7 2709  PD0PHA IU4PPL R-19 (x2)

10m

UTC    dB Audio  Message
100445  -8 2629  DK5EO IU4PPL RR73
100545 -11  557  Z34K IU4PPL JN54
104015 -18 1385  IU4PPL DL5GE -08
104630 -18 1237  DD5GG IU4PPL RR73
104700 -24 1434  DL1UDO IU4PPL +04
110030 -15 1900  IU4PPL OO6P -21 (x3)
111315  -5  534  IU4PPL PE9JAN JO22 (x5)
093130 -19 1804  IU4PPL EX8ABQ -14 (x2)

20m

UTC    dB Audio  Message
171030  -7 1002  SM0WLL IU4PPL 73
171200  -2 1005  YO4ASD IU4PPL +20 (x2)
171630  -6  824  EC7B IU4PPL JN54 (x2)
172530  -8 2874  IU4PPL M9LDX -01 (x3)
172830 -17  977  IU4PPL OZ/KD0NDU -03
173015  -8 2318  M7CWF IU4PPL 73
173245  -3 1344  DF8TN IU4PPL JN54
173315  -9  629  DK8HC IU4PPL RR73
173330 -14 1345  IU4PPL DF8TN +02
173515  -8 1344  DF8TN IU4PPL 73
173830  -9 1462  IU4PPL R3TY -11

80m

UTC    dB Audio  Message
213700  -5 1703  IU4PPL IQ3GO +04 (x2)
213845 -12 2119  IU4PPL IU1DXU -14 (x2)
214100 -19 1154  I2XLF IU4PPL JN54 (x2)
214230 -16  817  I0MQV IU4PPL JN54 (x4)
215315 -22 1080  DF1IH IU4PPL JN54
203530  -9  362  IU4PPL IQ0AAI RR73

60m

UTC    dB Audio  Message
203945 -19 1529  IU4PPL IU1TEU -12 (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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