WD4FFS — 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: EM94

Receiver-side FT8 activity involving WD4FFS, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-09-03.

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 3 FT8 messages attributed to WD4FFS as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (67%) and 20 m (33%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

40m · 2 20m · 1

First attributed message: 2026-08-24
Last attributed message: 2026-09-03 00:44 UTC

Observed FT8 message patterns

Attributed sample: 3 messages
Active dates: 2 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with WD4FFS in decoded directed-looking exchanges:

CT1EDG · Portugal CT1FIU · Portugal EA2BFM · Spain EA4Z · Spain EA7R · Spain EI4JFB · Ireland F1DXP · France F4EGM · France IK0QDM · Italy KC1VXF · United States MM7FTH · Scotland OH5VT · Finland

Most frequent locator attributed to WD4FFS

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: EM94 · 2 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,959 km (approx.)
Last such locator decoded: 2026-09-03 00:44 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	WD4FFS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 23:40	40m	- / -13	R4LL/6B	+8 / -	3	Partial capture
10-30 00:02	40m	- / -8	EA4Z	-4 / -	2	✓ Closing fragment
10-27 04:40	40m	- / -16	IK0QDM	-12 / -	2	✓ Closing fragment
10-10 00:02	40m	- / -	F5NBU	-10 / -	4	Partial capture
10-08 23:47	40m	- / -24	II5GG	-18 / -	4	Partial capture
10-07 06:31	40m	- / -8	OH5VT	+6 / -	3	✓ Closing fragment
10-06 23:15	40m	- / -10	CT1EDG	-11 / -	2	✓ Closing fragment
09-30 23:54	40m	- / -	F4EGM	-12 / -	2	✓ Closing fragment
09-27 06:58	40m	- / -	F4BYA	-4 / -	2	Partial capture
09-17 00:03	40m	- / -7	KC1VXF	-16 / -	2	✓ Closing fragment
09-16 22:26	40m	- / -16	GM6URC	-19 / -	3	Partial capture
09-06 07:01	40m	- / -12	F1DXP	-8 / -	2	✓ Closing fragment
09-03 00:48	40m	- / -14	ON3ANY	+5 / -	2	Partial capture
09-03 00:44	40m	- / -	2E0ROJ	-2 / -	2	Partial capture
09-03 00:42	40m	- / -14	HB10GBT	-5 / -	5	Partial capture
09-03 00:31	40m	-10 / -13	OO0O	-4 / -15	6	✓ Full exchange observed
08-31 23:11	40m	- / -8	EA2BFM	-9 / -	2	✓ Closing fragment
08-28 23:21	40m	- / -9	EA7R	-1 / -	2	✓ Closing fragment
08-24 00:25	80m	- / -23	MM0KQC	0 / -	2	Partial capture
08-23 00:01	40m	- / -	OH1EDK	+12 / -	9	Partial capture
08-22 23:46	40m	- / -	DJ0MAB	+3 / -	2	Partial capture
08-22 23:43	40m	- / -10	EI4JFB	-1 / -	3	✓ Closing fragment
08-22 23:43	40m	- / -	OH1EDK	+9 / -	9	Partial capture
08-21 07:31	40m	- / -18	ON4AOI	-2 / -	2	✓ Closing fragment
08-16 00:04	40m	- / -12	PE9JAN	-4 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
000315 -10 1445  WD4FFS F5NBU JN28 (x4)
044030 -12 1731  WD4FFS IK0QDM -16 (x2)
000215  -6  576  WD4FFS EA4Z -08 (x2)
000645 -10  283  WD4FFS MM7FTH RR73
231345 -18 1449  WD4FFS CT1FIU RR73
231645 -12 2108  WD4FFS CT7BRV -13
234045  +8 2060  WD4FFS R4LL/6B -13 (x3)
234515  -2  381  WD4FFS IN3THU JN56

20m

UTC    dB Audio  Message
220315 -14 2896  US5HL WD4FFS EM94

80m

UTC    dB Audio  Message
002500  +1 1450  WD4FFS MM0KQC -23 (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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