IV3XNF — 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 IV3XNF, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-26 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 85 FT8 messages attributed to IV3XNF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 40 m (36%) and 20 m (15%). 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 strong S/N range (67%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

60m · 41 40m · 31 20m · 13

First attributed message: 2026-08-26
Last attributed message: 2026-11-03 15:46 UTC

Observed FT8 message patterns

Attributed sample: 85 messages
Active dates: 6 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -14 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 57.

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 IV3XNF in decoded directed-looking exchanges:

DM2CNE · Fed. Rep. of Germany ×2 D2ACE · Angola 9A4ZM · Croatia DC8SG · Fed. Rep. of Germany HB9DWR · Switzerland OE5YCP · Austria SP2EWQ · Poland

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 IV3XNF

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 · 66 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-11-03 15:46 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	IV3XNF S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 15:28	60m	-6 / -	KH8A	- / -	19	Partial capture
10-29 16:03	60m	-12 / -1	9A4ZM	-5 / +8	4	✓ Full exchange observed
10-29 16:02	60m	-13 / +4	SP2EWQ	-6 / 0	4	✓ Full exchange observed
10-29 16:01	60m	-13 / -	HB9DWR	- / -9	3	✓ Closing fragment
10-29 15:58	60m	-18 / +1	DM2CNE	-4 / 0	6	✓ Full exchange observed
10-29 15:58	60m	-20 / -9	OE5YCP	-14 / -9	5	✓ Full exchange observed
10-29 15:57	60m	-15 / -8	DC8SG	-10 / -3	5	✓ Full exchange observed
10-15 14:41	40m	+9 / -	3D2USU	- / -	13	Partial capture
10-12 16:23	60m	-9 / -	H49A	- / -	3	Partial capture
10-12 16:18	60m	-6 / -	H49A	- / -	3	Partial capture
10-03 14:47	10m	- / 0	D2ACE	-15 / -	2	✓ Closing fragment
09-02 16:41	40m	+9 / -	RI1FJL	- / -	5	Partial capture
09-02 16:11	40m	+6 / -	RI1FJL	- / -21	6	Partial capture
09-02 15:57	40m	+6 / -	RI1FJL	- / -	7	Partial capture
08-26 13:08	20m	-11 / -	RI1FJL	- / -	6	Partial capture
08-26 12:51	20m	-2 / -	RI1FJL	- / -10	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
153145  -4 2714  KH8A IV3XNF JN65 (x15)

40m

UTC    dB Audio  Message
164245 +15 2562  RI1FJL IV3XNF JN65 (x2)
144145  -3 2356  3D2USU IV3XNF JN65 (x13)

10m

UTC    dB Audio  Message
102600 -19 2246  IV3XNF <...> +01 (x2)
144700 -14 2293  IV3XNF D2ACE +00 (x2)

20m

UTC    dB Audio  Message
125145  +1 1797  RI1FJL IV3XNF JN65 (x13)

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.

CW

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

Explore CW reception at SO8OO

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