WF7I — 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: FM07

Receiver-side FT8 activity involving WF7I, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-06.

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 WF7I as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (43%) and 20 m (11%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (61%); the estimated median was -17 dB.

Overview

137

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 63 40m · 59 20m · 15

First attributed message: 2026-06-07
Last attributed message: 2026-10-06 01:13 UTC

Observed FT8 message patterns

Attributed sample: 137 messages
Active dates: 10 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 83, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 11.

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 WF7I in decoded directed-looking exchanges:

DO4DXA · Fed. Rep. of Germany EA1AUO · Spain EA7LIC · Spain F4UJU · France IK5CHL · Italy IT9ZZO · Sicily KB1PA · United States KF8EXX · United States UX5UO · Ukraine

Most frequent locator attributed to WF7I

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: FM07 · 80 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,591 km (approx.)
Last such locator decoded: 2026-10-06 00:47 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	WF7I S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 00:10	80m	- / -17	EA1AUO	-16 / -	2	✓ Closing fragment
10-06 01:12	80m	-24 / -15	IK5CHL	+6 / -14	5	✓ Full exchange observed
10-06 01:10	80m	- / -14	DO4DXA	+14 / -	5	✓ Closing fragment
10-06 01:10	80m	- / -17	EA7LIC	-6 / -	3	✓ Closing fragment
10-06 00:45	80m	-23 / -	TJ1GD	- / -	2	Partial capture
10-04 03:34	80m	- / -17	F5SJF	-5 / -	3	Partial capture
10-04 03:25	80m	- / -	DL8TV	+15 / -	9	Partial capture
10-04 03:24	80m	- / -	F5SJF	-6 / -	3	Partial capture
09-29 01:05	80m	- / -	CT2GQA	-12 / -	5	Partial capture
09-29 01:05	80m	- / -	DL4ME	+15 / -	3	Partial capture
09-29 01:01	80m	- / -	RA2FCF	+1 / -	2	Partial capture
09-29 01:00	80m	- / -	F5SJF	-10 / -	2	Partial capture
09-27 02:59	80m	- / -9	EA5JCI	+3 / -	3	Partial capture
09-27 02:57	80m	- / -	KF8EXX	-11 / -	3	✓ Closing fragment
09-08 00:55	80m	- / -16	F4UJU	+6 / -	3	✓ Closing fragment
09-08 00:44	80m	- / -17	UX5UO	+14 / -	4	✓ Closing fragment
08-09 01:44	80m	- / -10	IT9ZZO	+1 / -	3	✓ Closing fragment
08-09 01:44	80m	-20 / -16	OM1II	+11 / -15	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
011045  -4 1594  WF7I EA7LIC IM86
011045 +16  506  WF7I DO4DXA JN58
011115  -8 1594  WF7I EA7LIC R-17
011115 +14  506  WF7I DO4DXA JN58
011145  -7 1594  WF7I EA7LIC 73
011145 +13  506  WF7I DO4DXA JN58 (x2)
011245  +4 2226  WF7I IK5CHL JN53
011245 +14  506  WF7I DO4DXA 73
011315  +8 2225  WF7I IK5CHL JN53
011330 -24 2215  IK5CHL WF7I -14
011345  +9 2225  WF7I IK5CHL R-15 (x2)
001000 -18 1905  WF7I EA1AUO -17 (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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