I5PXF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN53

Receiver-side FT8 activity involving I5PXF, decoded by SO8OO in southeastern Poland. 57 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-31.

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 57 FT8 messages attributed to I5PXF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (96%), followed by 10 m (4%). Most decodes (91%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -3 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

20m · 55 10m · 2

First attributed message: 2026-06-10
Last attributed message: 2026-08-31 18:07 UTC

Observed FT8 message patterns

Attributed sample: 57 messages
Active dates: 4 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -18 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 37.

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 I5PXF in decoded directed-looking exchanges:

4L1AX · Georgia BA8BLK · China BG5JGG · China BG7BMG · China BH4GWF · China EA5IXH · Spain F5RRS · France G4DBW · England G6MTI · England KB3Z · United States M7HDY · England PA1LEH · Netherlands

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 I5PXF

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: JN53 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-08-31 17:46 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	I5PXF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 18:06	20m	- / 0	G4DBW	+12 / -	5	✓ Closing fragment
08-31 17:24	20m	+2 / -	BG5JGG	- / -23	2	✓ Closing fragment
08-31 17:20	20m	-8 / -	BG5JGG	- / -15	2	Partial capture
08-31 17:19	20m	0 / -	UT0CK	- / -3	2	✓ Closing fragment
08-31 17:17	20m	-2 / -13	R8LCA	-21 / -10	4	✓ Full exchange observed
08-31 17:14	20m	-4 / -	UN9PQ	- / -15	2	✓ Closing fragment
08-31 17:04	20m	- / -15	VU2FR	-14 / -	3	✓ Closing fragment
08-31 16:41	20m	- / -	R2BMP	-12 / -	2	Partial capture
08-31 16:13	20m	- / -	BH4GWF	-11 / -	2	✓ Closing fragment
08-26 08:54	20m	+14 / -8	F5RRS	+10 / -	6	✓ Full exchange observed
08-25 19:56	20m	+16 / -14	TA2ED	-11 / -8	4	✓ Full exchange observed
08-25 19:47	20m	-19 / -	M7HDY	-20 / -	4	✓ Closing observed
08-25 19:35	20m	- / -	2E0XPQ	-8 / -	2	Partial capture
08-25 19:32	20m	-1 / -	BG7BMG	- / -7	2	✓ Closing fragment
08-25 19:30	20m	-4 / -	BA8BLK	- / -25	2	✓ Closing fragment
08-25 19:28	20m	- / -13	4L1AX	-4 / -	6	✓ Closing fragment
08-25 19:23	20m	- / +3	PD3LKN	+18 / -	3	✓ Closing fragment
08-25 19:20	20m	- / -15	EA5IXH	-3 / -	5	✓ Closing fragment
08-25 19:20	20m	- / +7	PA1LEH	-6 / -	2	✓ Closing fragment
08-25 19:19	20m	- / -	G6MTI	0 / -	3	✓ Closing fragment
08-25 19:19	20m	- / -	IZ1HJU	+6 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
172345  +2 1309  CQ I5PXF JN53
172415  +5 1309  BG5JGG I5PXF -23 (x2)
172715  -5 1931  CQ I5PXF JN53 (x5)
180645 +11 2244  I5PXF G4DBW JO01
180715  -7 2728  I5PXF M7OXP IO92
180715 +14 2244  I5PXF G4DBW JO01
180730  -9 1933  PE1NLQ I5PXF -09
180815 +11 2244  I5PXF G4DBW JO01 (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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