I3VFJ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN65

Receiver-side FT8 activity involving I3VFJ, decoded by SO8OO in southeastern Poland. 106 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-11-03.

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 106 FT8 messages attributed to I3VFJ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (31%). Most decodes (95%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

106

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 73 20m · 33

First attributed message: 2026-06-11
Last attributed message: 2026-11-03 23:04 UTC

Observed FT8 message patterns

Attributed sample: 106 messages
Active dates: 5 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 54.

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 I3VFJ in decoded directed-looking exchanges:

EA4HTI · Spain F5PBG · France IU2THY · Italy NF3R · United States YB2TTM · Indonesia

Most frequent locator attributed to I3VFJ

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: JN65 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-11-03 23:03 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	I3VFJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 23:04	40m	-12 / -	EA4HTI	- / -9	2	✓ Closing fragment
11-03 23:01	40m	-12 / -9	F5PBG	-12 / -17	4	✓ Full exchange observed
11-03 22:55	40m	-12 / -8	UA4FKT	+8 / 0	5	Partial capture
11-03 22:54	40m	-11 / -	NF3R	- / -15	2	✓ Closing fragment
11-03 22:53	40m	-8 / -	YB2TTM	- / -14	2	✓ Closing fragment
11-03 22:50	40m	-9 / -7	IU2THY	+5 / -	7	✓ Closing observed
11-03 22:21	40m	- / -	F5PBG	-1 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
225445 -14 2631  NF3R I3VFJ 73
225500 +11 2631  I3VFJ UA4FKT LO23
225515 -12 2631  UA4FKT I3VFJ +00
225530  +3 2631  I3VFJ UA4FKT R-08 (x3)
230115 -13 2631  CQ I3VFJ JN65                         a1
230130 -14 2590  I3VFJ F5PBG IN78
230145 -12 2630  F5PBG I3VFJ -17
230200  -9 2590  I3VFJ F5PBG R-09
230215 -12 2631  F5PBG I3VFJ RR73
230315 -11 2631  CQ I3VFJ JN65 (x2)
230415 -12 2631  EA4HTI I3VFJ -09 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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