IK4YWL — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IK4YWL, decoded by SO8OO in southeastern Poland. 102 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-30 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 102 FT8 messages attributed to IK4YWL 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 (64%), followed by 20 m (35%) and 80 m (1%). Most decodes (88%) 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 (88%); the estimated median was +5 dB.

Overview

102

Messages attributed

UTC dates decoded

Active 15-min windows

+5 dB

Estimated median S/N

Bands

80m · 1 40m · 65 20m · 36

First attributed message: 2026-08-30
Last attributed message: 2026-09-20 08:22 UTC

Observed FT8 message patterns

Attributed sample: 102 messages
Active dates: 5 UTC dates
Estimated median S/N: +5 dB
Estimated 10th-90th percentile: -9 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 90.

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 IK4YWL in decoded directed-looking exchanges:

RI1FJL · Franz Josef Land ×2 BG4UVR · China BI4MPH · China DK8HC · Fed. Rep. of Germany KC2NJ · United States M7JVT · England PD0PWH · Netherlands WU8C · United States YI1QEA · Iraq 3B8FA · Mauritius EA5IHI · Spain G6PWS · England

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 IK4YWL

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 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-09-20 08:19 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	IK4YWL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 08:22	40m	-11 / -	OS4K	- / -4	2	✓ Closing fragment
09-20 08:21	40m	-9 / -	M9NTS	- / -	2	✓ Closing fragment
09-20 08:20	40m	-10 / -	EA5IHI	- / -9	2	✓ Closing fragment
09-20 08:17	40m	-10 / -	SP8RC	- / -13	2	Partial capture
09-20 08:16	40m	-8 / -	M9NTS	- / -14	2	Partial capture
09-20 08:15	40m	-9 / +5	HG0NPJ	+4 / -	3	✓ Closing observed
09-19 21:43	40m	+12 / +7	RU5A	-3 / -1	4	✓ Full exchange observed
09-19 21:37	40m	+8 / -	RD0L	- / -15	3	✓ Closing fragment
09-19 21:35	40m	+11 / -	JE5HTN	- / -10	2	✓ Closing fragment
09-19 21:33	40m	- / -	IU4PPL	-7 / -	2	Partial capture
09-19 21:32	40m	+10 / -	LB8TG	- / 0	2	Partial capture
09-19 21:28	40m	+8 / -	JA4MMO	- / -15	2	✓ Closing fragment
09-19 21:27	40m	+8 / -	PY5JO	- / -19	2	Partial capture
09-19 21:25	40m	+8 / -	M8KUU	-16 / -15	3	✓ Closing observed
09-19 20:43	40m	-3 / -6	JA8EPO	-15 / -8	4	✓ Full exchange observed
09-11 19:24	40m	+9 / -	TN8GD	- / -20	3	✓ Closing fragment
09-11 19:24	40m	+6 / -	YL3CW	-12 / -	2	✓ Closing observed
09-11 19:19	40m	+6 / -	TN8GD	- / -16	5	Partial capture
09-04 17:11	40m	+8 / -	VJ6X	- / -12	4	✓ Closing fragment
09-04 17:09	40m	+5 / -	OE5ABL	- / -4	2	✓ Closing fragment
09-04 17:06	40m	+3 / -	3B8FA	- / -20	3	✓ Closing fragment
09-04 17:01	40m	+2 / -	RI1FJL	- / -13	4	✓ Closing fragment
08-30 19:41	40m	0 / -	ZL2NU	- / -15	2	✓ Closing fragment
08-30 19:39	40m	+2 / -12	G6PWS	-5 / -2	5	✓ Full exchange observed
08-30 19:39	40m	0 / -	V51WH	- / -12	2	✓ Closing fragment
08-30 19:25	20m	0 / -	K0Q	- / -13	2	Partial capture
08-30 19:22	20m	+2 / -	9M26MR	- / -13	3	Partial capture
08-30 19:15	20m	+3 / -	WU8C	- / -17	3	✓ Closing fragment
08-30 19:12	20m	+10 / -	BG4UVR	- / -12	2	✓ Closing fragment
08-30 19:11	20m	+8 / -	DK8HC	- / -9	2	✓ Closing fragment
08-30 19:05	20m	+6 / -	RI1FJL	- / -20	3	✓ Closing fragment
08-30 19:02	20m	+4 / -	M7JVT	-9 / -14	3	✓ Closing observed
08-30 19:01	20m	+6 / -	KC2NJ	- / -18	2	✓ Closing fragment
08-30 19:00	20m	+6 / +1	PD0PWH	-2 / -15	7	✓ Full exchange observed
08-30 18:59	20m	+10 / -	BI4MPH	- / -13	2	✓ Closing fragment
08-30 18:55	20m	+4 / -10	YI1QEA	-12 / -5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
214415  -5 1871  IK4YWL RU5A 73
081515  +4 2527  IK4YWL HG0NPJ R+05
081530  -9 2176  HG0NPJ IK4YWL RR73
081545  +5 2527  IK4YWL HG0NPJ 73
081630  -7 2176  M9NTS IK4YWL -14
081700 -10 2176  SP8RC IK4YWL -13 (x2)
081800 -10 2176  M9NTS IK4YWL -12
081930 -10 2176  CQ IK4YWL JN54
082000  -9 2176  EA5IHI IK4YWL R-09 (x2)
082100 -10 2177  M9NTS IK4YWL RR73 (x2)
082200 -12 2177  OS4K IK4YWL R-04 (x2)

80m

UTC    dB Audio  Message
193945 -19 2253  UF4S IK4YWL JN54

20m

UTC    dB Audio  Message
191245 +10 2089  BG4UVR IK4YWL RR73
191345  +6 2089  ZL1GT IK4YWL -16
191500  +0 2089  WU8C IK4YWL -17 (x3)
191745  +3 2089  AK4T IK4YWL -22
191915  -1 2089  VO1IV IK4YWL -14
192115  -5 2089  <...> IK4YWL -14
192215  -3 2089  <9M26MR> IK4YWL R-13 (x3)
192445  +3 2089  <...> IK4YWL -14
192530  -2 2089  K0Q IK4YWL -13 (x2)
193600  -8 2089  KK4PJ IK4YWL -15

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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