WI1U — 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: United States Most frequent locator attributed to this token: FN32

Receiver-side FT8 activity involving WI1U, decoded by SO8OO in southeastern Poland. 1,758 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 68 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-15.

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 1,758 FT8 messages attributed to WI1U as the transmitting token by decoded message structure across 68 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (17%) and 80 m (5%). Most decodes (95%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,758

Messages attributed

UTC dates decoded

293

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 91 40m · 294 20m · 1,373

First attributed message: 2026-06-07
Last attributed message: 2026-10-15 00:20 UTC

Observed FT8 message patterns

Attributed sample: 1,758 messages
Active dates: 68 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 573, moderate (-15 to -9 dB) 799, strong (≥ -8 dB) 386.

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 WI1U in decoded directed-looking exchanges:

UR4SXA · Ukraine ×3 F5PGA · France ×2 HK5GBT · Colombia ×2 7Z1AV · Saudi Arabia 9A3BMK/P · Croatia 9A3K · Croatia 9J2FI · Zambia 9K2KU · Kuwait A92AE · Bahrain CE3RKW · Chile CE8VSO · Chile CN8NY · Morocco

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 WI1U

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: FN32 · 219 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,837 km (approx.)
Last such locator decoded: 2026-08-30 21:54 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	WI1U S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-12 01:46	40m	- / -2	SV5BYP	-3 / -	5	Partial capture
10-06 02:27	40m	- / -15	EK1KE	-20 / -	2	Partial capture
10-06 02:21	40m	-16 / -	AB3LD	- / -16	2	✓ Closing fragment
10-06 02:20	40m	-17 / -15	EK1KE	-12 / -18	8	Partial capture
10-06 02:16	40m	-20 / -	A65DF	- / -18	2	Partial capture
10-06 02:13	40m	-18 / -	C5R	- / +5	3	Partial capture
10-06 01:05	80m	-24 / -	WB6WUW	- / -	2	Partial capture
10-06 01:00	80m	-17 / -	WA4HEI	- / -20	2	Partial capture
10-06 00:58	80m	-18 / -20	RA2FCF	+2 / -25	7	Partial capture
10-06 00:56	80m	-20 / -	C5R	- / -25	3	Partial capture
10-06 00:53	80m	-21 / -10	GM6URC	-8 / -	4	✓ Closing observed
10-06 00:52	80m	- / -18	E75C	+7 / -	3	✓ Closing fragment
10-06 00:51	80m	- / -	DO4DXA	+12 / -	5	Partial capture
10-06 00:50	80m	- / -7	F5RMK	-2 / -	2	✓ Closing fragment
10-06 00:47	80m	-19 / -5	UX5UO	+14 / -13	5	✓ Full exchange observed
10-06 00:45	80m	-21 / -	HA1DAE	- / -21	3	Partial capture
10-06 00:44	80m	-19 / -21	I3LID	+23 / -18	4	✓ Full exchange observed
10-06 00:41	80m	- / -	DO4DXA	+13 / -	5	Partial capture
10-06 00:41	80m	-24 / -16	YO4NF	+11 / -20	5	✓ Full exchange observed
10-06 00:40	80m	- / -15	GM6URC	-4 / -	2	Partial capture
10-06 00:33	80m	-22 / -	HA1DAE	- / -23	2	Partial capture
10-06 00:32	80m	-18 / 0	CT3IQ	-12 / -8	3	Partial capture
10-06 00:29	80m	-20 / -	K8DV	- / +2	2	✓ Closing fragment
10-06 00:28	80m	- / -	CT3IQ	-17 / -	3	Partial capture
10-06 00:28	80m	-20 / -	WA9BZW	- / +9	2	✓ Closing fragment
10-06 00:27	80m	-18 / -	N3GLZ	- / -1	2	✓ Closing fragment
10-05 02:07	80m	-18 / -20	UR4SXA	+16 / -9	4	✓ Full exchange observed
10-05 02:04	80m	- / -17	CE8EIO	-20 / -	2	✓ Closing fragment
10-05 01:56	80m	- / -	YO9BPX	+10 / -	3	Partial capture
10-05 01:54	80m	-18 / -	NP4PS	- / -13	3	✓ Closing fragment
10-05 01:53	80m	- / -11	E75C	+6 / -	2	Partial capture
09-15 00:41	80m	-18 / -15	UR4SXA	+6 / -11	2	Partial capture
09-15 00:41	80m	- / -	RC2DD	-9 / -	2	Partial capture
09-15 00:40	80m	- / -	PA3KUS	-14 / -	4	Partial capture
09-15 00:39	80m	-21 / -	UX7QV	- / -10	3	Partial capture
09-15 00:36	80m	- / -	PA3KUS	-12 / -	3	Partial capture
09-15 00:36	80m	-19 / -	8R1TM	- / -6	5	✓ Closing fragment
09-15 00:36	80m	- / -	UT7UA	+1 / -	13	Partial capture
09-15 00:35	80m	-20 / -12	UR4SXA	+4 / -15	4	Partial capture
09-15 00:31	80m	- / -19	RY7F	-10 / -	3	✓ Closing fragment
09-15 00:30	80m	- / -20	UR4SXA	+9 / -	3	✓ Closing fragment
09-15 00:30	80m	- / -	F4FPR	-22 / -	2	Partial capture
09-15 00:29	80m	-22 / -	KF9UG	- / +10	2	✓ Closing fragment
09-15 00:29	80m	- / -	PA3KUS	-11 / -	7	Partial capture
09-15 00:27	80m	-19 / -18	LY3BFH	-12 / -22	5	✓ Full exchange observed
09-15 00:26	80m	-21 / -22	UR4SXA	+14 / -20	3	✓ Full exchange observed
09-15 00:24	80m	-15 / -8	SP9TBT	-2 / -9	7	✓ Full exchange observed
09-15 00:20	80m	- / -	PA3KUS	-4 / -	3	Partial capture
09-15 00:20	80m	-20 / -13	EC3A	-24 / -25	4	Partial capture
09-15 00:18	80m	-24 / -	LU1FP	- / -5	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
022230  -8 1180  WI1U EK1KE R-15 (x3)
022415 -17 1094  4L7T WI1U -21
022430 -16 1180  WI1U EK1KE R-15 (x3)
014245 -11  856  WI1U SV5BYP KM46 (x6)
001945 -13 1980  VE1DN WI1U +03
002045 -14 1980  PY3TX WI1U -09

80m

UTC    dB Audio  Message
005715 -18 1747  C5R WI1U -25 (x2)
005815 -12 1745  RA2FCF WI1U -25
005830  +4 1639  WI1U RA2FCF R-20
005845 -19 1745  RA2FCF WI1U -25
005900  +0 1638  WI1U RA2FCF R-19
005915 -22 1747  RA2FCF WI1U -25
005930  +0 1638  WI1U RA2FCF R-16 (x2)
010015 -18 1745  WA4HEI WI1U -20 (x2)
010315 -17 1747  C5R WI1U -17
010400 -18 1747  Z61DX WI1U -20
010500 -24 1748  WB6WUW WI1U +15 (x2)

20m

UTC    dB Audio  Message
234545 -13 1229  CQ WI1U FN32
234645 -16 1229  WA6GXQ WI1U RR73
235715 -20 1416  PP7GB WI1U -08 (x2)
215430 -19 1726  H79YYI WI1U FN32
215500 -20 1726  KJ6JUS WI1U -04
215600 -19 1726  H79YYI WI1U -15 (x2)
220230 -20 1750  PU3RAK WI1U -21 (x4)
221415 -23 1620  WI1U PY2DCA GG67
221700  -9 1276  WI1U PP7GB R-13 (x2)

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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