IU4CNX — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IU4CNX, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-05.

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 137 FT8 messages attributed to IU4CNX as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 20 m (29%) and 10 m (15%). Most decodes (73%) 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 -11 dB.

Overview

137

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 76 20m · 40 10m · 21

First attributed message: 2026-06-07
Last attributed message: 2026-09-05 16:06 UTC

Observed FT8 message patterns

Attributed sample: 137 messages
Active dates: 19 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 55, strong (≥ -8 dB) 51.

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 IU4CNX in decoded directed-looking exchanges:

IK2GAU · Italy ×2 II9WWA · Sicily CR2WWA · Azores IQ9BF · Sicily DA0WWA · Fed. Rep. of Germany DK9BM · Fed. Rep. of Germany GB2WWA · England II0WWA · Italy IU2SOL · Italy TM2WWA · France

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 IU4CNX

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 · 77 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-09-02 20:20 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	IU4CNX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 16:05	40m	-13 / -3	IU2SOL	-20 / -	3	✓ Closing observed
09-04 09:41	40m	-24 / -	IK2GAU	-20 / -2	2	✓ Closing observed
09-02 20:21	40m	0 / -	DK9BM	+4 / -9	3	✓ Closing observed
08-10 12:38	20m	- / -	DK7UY	-19 / -	3	Partial capture
07-23 18:48	40m	- / -	DL9YNG	-20 / -	2	Partial capture
07-05 11:26	10m	-10 / -	II9WWA	-13 / -	2	✓ Closing observed
07-05 11:21	10m	-7 / -	II9WWA	- / -	2	Partial capture
07-05 11:19	10m	0 / -6	TM8WWA	-11 / -	3	Partial capture
07-05 11:11	10m	-14 / -	II6WWA	- / -	5	Partial capture
07-05 11:05	10m	-19 / -	OP0WWA	- / -	3	Partial capture
07-04 06:18	40m	- / -3	DA0WWA	-14 / -	2	✓ Closing fragment
07-03 20:57	40m	- / -12	GB2WWA	-12 / -	2	✓ Closing fragment
07-02 18:49	20m	- / -8	PD0HLA	+6 / -	2	Partial capture
06-30 20:20	40m	- / -1	II0WWA	-8 / -	2	✓ Closing fragment
06-30 19:52	10m	- / -18	SX0W	-12 / -	2	Partial capture
06-30 19:52	20m	- / -	CR2WWA	-11 / -	2	✓ Closing fragment
06-28 18:44	10m	-12 / -	RZ3DZ	- / -	2	Partial capture
06-28 18:41	10m	-9 / -	CA6SNT	- / -1	3	Partial capture
06-28 18:14	20m	-10 / -16	IR0RPER	-12 / -	2	Partial capture
06-23 18:38	20m	-6 / -	IQ9BF	- / -17	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
203330  -5 1961  IU4CNX 9A4ZM JN86

40m

UTC    dB Audio  Message
061830 -13  789  IU4CNX DA0WWA -03 (x2)
184800 -20 1234  IU4CNX DL9YNG JN48
184830  -9 2646  IU4CNX PE1NPS JO22
184830 -19 1234  IU4CNX DL9YNG JN48
202000  -1  444  CQ IU4CNX JN54                        a1
202100  -1  445  DK9BM IU4CNX R-09
202115  +4  446  IU4CNX DK9BM RR73
202130  +1  445  DK9BM IU4CNX 73
094100 -24 1781  IK2GAU IU4CNX R-02
094115 -20 1784  IU4CNX IK2GAU RR73 (x2)
160515 -20 1864  IU4CNX IU2SOL -03 (x2)
160600 -13 1866  IU2SOL IU4CNX 73

10m

UTC    dB Audio  Message
111115 -15 1106  II6WWA IU4CNX JN54 (x5)
111900  -3  678  TM8WWA IU4CNX JN54 (x2)
111945 -11  680  IU4CNX TM8WWA -06
112100 -12  579  II9WWA IU4CNX JN54 (x3)
112615 -13  581  IU4CNX II9WWA RR73
112630 -10  579  II9WWA IU4CNX 73
110115 -22 1578  ER3RR IU4CNX R+06
110430 -18 1458  IU4CNX UA3VVA LO06

20m

UTC    dB Audio  Message
195200 -10 1880  IU4CNX CR2WWA +11 (x2)
184815  -4  665  IU4CNX TM8WWA -05
184915  +9 2579  IU4CNX PD0HLA -08 (x2)
131945 -10  659  CR2WWA IU4CNX R-12
140330 -17 1911  IU4CNX TM8WWA -15
201230 -13  332  OZ1WWA IU4CNX R+12
115900 -18 1788  IU4CNX GB2WWA -08
120245 -11  644  TM8WWA IU4CNX R+01
101645 -24 1410  WB2BIN IU4CNX JN54
123700 -18 1369  IU4CNX DK3HV JO31
123800 -20 1166  IU4CNX DK7UY JO44 (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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