IN3XSV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN55

Receiver-side FT8 activity involving IN3XSV, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-09-20.

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 80 FT8 messages attributed to IN3XSV as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (73%), followed by 80 m (25%) and 60 m (3%). Most decodes (86%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was -3 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 20 60m · 2 40m · 58

First attributed message: 2026-08-25
Last attributed message: 2026-09-20 17:57 UTC

Observed FT8 message patterns

Attributed sample: 80 messages
Active dates: 8 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -12 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 67.

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 IN3XSV in decoded directed-looking exchanges:

IK2BUF · Italy ×2 IK2SGF · Italy IN3JRZ · Italy IU2SOL · Italy IZ2CDP · 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 IN3XSV

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: JN55 · 46 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 945 km (approx.)
Last such locator decoded: 2026-09-20 17:56 UTC

Other locator fields attributed to this token: JN56 (6).

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	IN3XSV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 17:55	80m	-6 / -	SQ100PKP	- / -2	4	Partial capture
09-20 16:53	40m	-3 / -	SV8/SV1TQB	- / -	4	Partial capture
09-18 20:53	80m	- / -	IZ4AIF	-12 / -	2	Partial capture
09-18 20:50	80m	-1 / -	OZ/DL3KWF	- / -5	5	Partial capture
09-18 12:22	40m	-17 / -18	II4IANT	-14 / -10	2	Partial capture
09-18 08:15	40m	- / -	SQ6PZL	-10 / -	2	Partial capture
09-18 06:55	40m	-4 / -	II6IGTO	- / -7	2	Partial capture
09-17 21:32	80m	-6 / -	TK/4O7CC	- / -6	2	Partial capture
09-17 20:23	60m	- / -	G3UHU	-10 / -	3	Partial capture
09-17 20:19	60m	- / -3	DK7ZT	-16 / -	2	Partial capture
09-17 20:19	60m	- / -	EA1IOK	-8 / -	4	Partial capture
09-17 18:07	80m	-4 / -	TK/4O7CC	- / +4	2	Partial capture
09-17 17:29	40m	0 / +10	II0IHMG	-16 / -13	18	Partial capture
09-17 16:42	40m	-5 / -	IN3JRZ	-4 / -11	4	✓ Closing observed
09-17 16:21	40m	+1 / +8	IN3JRZ	-9 / -	8	Partial capture
09-17 06:57	40m	- / -20	SP7TF	-16 / -	2	Partial capture
09-17 06:56	40m	- / -	HA7TM	+5 / -	2	Partial capture
09-14 19:33	40m	+14 / -	II0IHMG	- / -	3	Partial capture
09-14 19:27	40m	+18 / -	II0IHMG	- / +1	2	Partial capture
09-05 16:01	40m	0 / -	IU2SOL	- / +5	4	✓ Closing fragment
09-05 12:02	40m	-14 / -	IK2SGF	- / -	4	✓ Closing fragment
09-04 19:40	80m	+6 / +4	IK2BUF	0 / +4	4	✓ Full exchange observed
09-03 15:29	40m	-13 / -	IZ2CDP	- / -5	2	✓ Closing fragment
09-03 15:24	40m	-5 / -	IZ2FDY	- / -	6	Partial capture
09-03 15:23	40m	-10 / +3	IK2BUF	-22 / -	4	✓ Full exchange observed
08-25 19:07	80m	-2 / -2	II7MGXX	-2 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
205015  -4 1503  OZ/DL3KWF IN3XSV JN55
205030  -5 1272  IN3XSV II8IHBC -10
205045  +0 1503  OZ/DL3KWF IN3XSV R-05
205145  -3 1503  CQ IN3XSV JN55
205200 +11 1502  IN3XSV YO4NF -06
205215  +0 1503  OZ/DL3KWF IN3XSV JN55 (x3)
205330 -14 1503  IN3XSV IZ4AIF JN54 (x2)
175515  -5 1502  SQ100PKP IN3XSV JN55 (x3)
175700  +6  558  IN3XSV II9IAGM -04
175715  -8 1504  SQ100PKP IN3XSV R+02

40m

UTC    dB Audio  Message
192100  +1 1540  F/M1CKD IN3XSV JN55
192145  -1 2146  IN3XSV II4IANT -12
065545  -4 1540  II6IGTO IN3XSV R-07
065645  -3 1539  SO100PKP IN3XSV JN55
065715  -4 1540  II6IGTO IN3XSV R+02
081515  -9 1540  IN3XSV SQ6PZL JO80 (x2)
081630  -6 1539  F/M1CKD IN3XSV JN55
122230 -14  846  IN3XSV II4IANT -18
122245 -17 1539  II4IANT IN3XSV R-10
165345  -6 1538  SV8/SV1TQB IN3XSV JN55 (x4)
165530  -4 2108  IN3XSV II4IANT -14

60m

UTC    dB Audio  Message
201800 -17 1280  IN3XSV II8IHBC -13
201900 -11  481  IN3XSV EA1IOK IN62
201900 -15 1901  IN3XSV DK7ZT -03
201915 -22 1534  DL1KYF/P IN3XSV JN55
201930  -8  481  IN3XSV EA1IOK IN62
201930 -18 1901  IN3XSV DK7ZT -03
202000  -9  480  IN3XSV EA1IOK IN62 (x2)
202200  -3  640  IN3XSV II9IAGM -10
202215 -19 1533  DL1KYF/P IN3XSV R-06
202300  -9  580  IN3XSV G3UHU IO80 (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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