IU5NWT — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IU5NWT, decoded by SO8OO in southeastern Poland. 347 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 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 347 FT8 messages attributed to IU5NWT as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 20 m (21%) and 10 m (20%). Most decodes (59%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +1 dB.

Overview

347

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 34 40m · 169 20m · 74 10m · 70

First attributed message: 2026-06-06
Last attributed message: 2026-08-31 20:34 UTC

Observed FT8 message patterns

Attributed sample: 347 messages
Active dates: 22 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -14 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 44, strong (≥ -8 dB) 284.

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 IU5NWT in decoded directed-looking exchanges:

5P1KZX · Denmark G0OOR · England G0UDE · England G1ABR · England G4YLJ · England M7GOA · England OH3HE · Finland PD1WS · Netherlands SH6GSA · Sweden SP9AHW · Poland UA2FFD · Kaliningrad UR5FBD · Ukraine

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 IU5NWT

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 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-08-15 14:22 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	IU5NWT S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 20:33	20m	-3 / -	JA7BXS	- / -19	3	✓ Closing fragment
08-31 20:31	20m	+1 / -	LY2TS	- / -18	3	✓ Closing fragment
08-31 20:28	20m	+10 / -	US5HL	- / -6	2	✓ Closing fragment
08-31 20:25	20m	- / -	MI7RDK	-12 / -	2	Partial capture
08-31 20:24	20m	+8 / -8	HS0ZOY	+2 / -18	4	✓ Full exchange observed
08-31 20:20	20m	-6 / -	KE4EB	- / -10	2	Partial capture
08-30 08:42	10m	-18 / -	DV4ZAR	- / -10	2	Partial capture
08-30 08:35	10m	-12 / -	VK4XA	- / -12	3	✓ Closing fragment
08-26 15:53	20m	+8 / -	RI1FJL	- / -13	8	Partial capture
08-24 06:29	20m	-2 / -	VK3SC	- / -12	2	Partial capture
08-24 06:25	20m	+2 / -16	R6LQU	-9 / -15	5	✓ Full exchange observed
08-24 06:23	20m	+8 / -	<...>	- / -18	2	Partial capture
08-24 06:17	20m	-4 / -	VK2GR	- / -11	3	Partial capture
08-24 06:09	20m	-3 / -	YO6LM	- / -14	2	✓ Closing fragment
08-24 06:08	20m	+5 / -	VK3JMA	- / -17	2	✓ Closing fragment
08-24 06:05	20m	+2 / -	VK2GQR	- / -19	2	Partial capture
08-24 06:02	20m	+8 / -	VK2GQR	- / -20	3	Partial capture
08-15 14:27	40m	-17 / -	OK1VCB	-20 / -	2	✓ Closing observed
08-15 14:22	40m	-17 / +4	OE5PEN	-13 / -9	4	✓ Full exchange observed
08-10 05:54	20m	-6 / -	3V8HP	- / -19	2	Partial capture
08-08 05:05	20m	-19 / -	KR3Y	- / -18	2	✓ Closing fragment
07-25 10:14	10m	- / +6	UR5FBD	-13 / -	2	✓ Closing fragment
07-25 10:09	10m	+3 / -	G1ABR	- / -8	2	✓ Closing fragment
07-25 10:07	10m	-4 / -	UA9CAW	- / -18	2	Partial capture
07-25 10:06	10m	-7 / -	OH3HE	- / -11	2	✓ Closing fragment
07-25 10:04	10m	-2 / -	M7EJN	- / -15	2	Partial capture
07-25 10:02	10m	-4 / +7	SH6GSA	-15 / -	2	✓ Closing observed
07-25 10:01	10m	-8 / -	G4YLJ	- / -18	2	✓ Closing fragment
07-25 09:59	10m	+2 / -	UA2FFD	- / -7	2	✓ Closing fragment
07-25 09:57	10m	-6 / -	YO2LFP	- / -6	2	✓ Closing fragment
07-12 20:39	20m	- / -6	EW3DK	-19 / -	3	✓ Closing fragment
07-12 20:36	20m	- / -3	R4FDW	-20 / -	2	✓ Closing fragment
07-12 09:52	10m	-10 / -	CT1CQM	- / -18	2	Partial capture
07-12 09:51	10m	-4 / -	PD1WS	- / -12	2	✓ Closing fragment
07-12 09:49	10m	-10 / -	SP9AHW	- / -4	2	✓ Closing fragment
07-12 09:46	10m	-7 / -	G0UDE	- / +1	2	✓ Closing fragment
07-12 09:42	10m	-6 / -	M7GOA	- / -13	3	✓ Closing fragment
07-11 09:00	10m	-4 / -	YH1AA	- / -13	5	Partial capture
07-11 08:58	10m	-6 / -	XV9T	- / -11	2	Partial capture
07-11 08:54	10m	-6 / -	XV9T	- / -20	2	Partial capture
07-11 08:50	10m	-9 / -	XV9T	- / -17	3	Partial capture
07-11 08:32	10m	-9 / -	XV9T	- / -21	3	Partial capture
07-11 08:18	10m	- / +4	5P1KZX	+10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
202430  +4  393  IU5NWT HS0ZOY R-08
202445  +8  395  HS0ZOY IU5NWT RR73
202500 -10 1437  IU5NWT MI7RDK IO74
202500  +1  393  IU5NWT HS0ZOY 73
202515  +6 2729  N2BJ IU5NWT RR73
202530 -13 1437  IU5NWT MI7RDK IO74
202600 -10  445  IU5NWT BG4UVR PM01
202845  +7  424  US5HL IU5NWT -06 (x2)
203145  +1 1026  LY2TS IU5NWT -18 (x3)
203315  -7 2025  JA7BXS IU5NWT -19 (x3)

10m

UTC    dB Audio  Message
100745  -3 1912  UA9CAW IU5NWT -18
100900  +1  791  G1ABR IU5NWT -08 (x2)
101115 -10 1879  <...> IU5NWT -07
101400 -14 1618  IU5NWT UR5FBD +06 (x2)
101545 -24 1837  SQ5PTZ IU5NWT -19
101645  -9  589  UX2SB IU5NWT RR73
083130 -14  915  JH3CUL IU5NWT -14
083545 -17 1307  VK4XA IU5NWT -12 (x3)
083745 -13 1618  <...> IU5NWT -16
084230 -18 1528  DV4ZAR IU5NWT -10 (x2)

40m

UTC    dB Audio  Message
140015 -16 1635  IU5NWT SP6AMI -10
140200 -19 2029  IU5NWT HG3FNM R-11
140600 -16 1421  IU5NWT SP6AMI -03 (x2)
141230 -12  654  IU5NWT DL6EL R+03
141700 -15  944  G8FCQ IU5NWT -19
141830 -18 2085  PD0MNO IU5NWT RR73
142200 -17  975  CQ IU5NWT JN53                        a1
142245 -11  974  IU5NWT OE5PEN JN78
142300 -17  974  OE5PEN IU5NWT -09
142315 -11  974  IU5NWT OE5PEN R+04 (x2)
142700 -17 1641  OK1VCB IU5NWT RR73
142715 -20 1642  IU5NWT OK1VCB 73
142800 -21 1534  IU5VLR IU5NWT -13

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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