W1DFW — 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: FN54

Receiver-side FT8 activity involving W1DFW, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-10-04.

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 42 FT8 messages attributed to W1DFW as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 80 m (26%) and 20 m (5%). Most decodes (100%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (74%); the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 11 40m · 29 20m · 2

First attributed message: 2026-07-13
Last attributed message: 2026-10-04 21:51 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 3 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -17 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 2.

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 W1DFW in decoded directed-looking exchanges:

EA3NE · Spain G4YAN · England IZ0MYH · Italy KQ4KKU · United States LZ2PAJ · Bulgaria PA1CG · Netherlands PD0IFI · Netherlands PY2DPM · Brazil VP2MAA · Montserrat W4DJF · United States DK1ML · Fed. Rep. of Germany DO4DXA · Fed. Rep. of Germany

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 W1DFW

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: FN54 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,448 km (approx.)
Last such locator decoded: 2026-10-04 01:04 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	W1DFW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-13 03:06	40m	- / -	EA5HM	-2 / -	2	Partial capture
10-04 21:52	40m	- / -	LB7ZG	-6 / -	2	Partial capture
10-04 21:50	40m	- / -	PB2A	-2 / -	3	Partial capture
10-04 21:45	40m	- / -	LB7ZG	-6 / -	3	Partial capture
10-04 21:45	40m	-17 / -5	PD0IFI	+11 / -23	10	✓ Full exchange observed
10-04 21:45	40m	- / -	UR9QQ	-15 / -	2	Partial capture
10-04 21:45	40m	-15 / -8	G4YAN	+4 / -13	12	✓ Full exchange observed
10-04 21:45	40m	- / -	TA3NK	-6 / -	5	Partial capture
10-04 21:09	40m	- / -	EC2ASL	-6 / -	10	Partial capture
10-04 06:46	80m	- / -13	F1RHS	-7 / -	2	✓ Closing fragment
10-04 01:25	80m	- / -12	DK1ML	+4 / -	2	✓ Closing fragment
10-04 01:25	80m	- / -	LY8O	-2 / -	2	Partial capture
10-04 01:25	80m	- / -	R2AL	0 / -	4	Partial capture
10-04 01:08	80m	- / -	DO8JB	-3 / -	3	Partial capture
10-04 01:07	80m	-18 / -10	DO4DXA	+10 / -13	7	✓ Full exchange observed
10-04 01:07	80m	-12 / -23	SP5MXZ	+11 / -9	3	✓ Full exchange observed
10-04 01:06	80m	-14 / -	W5WES	- / -19	3	✓ Closing fragment
10-04 01:05	80m	-12 / -	N8DH	- / -	2	✓ Closing fragment
10-04 01:04	80m	- / -	DO1OAS	-5 / -	11	Partial capture
10-04 01:04	80m	- / -	G6PWS	-1 / -	9	Partial capture
10-04 01:04	80m	- / -	OK4SD	0 / -	3	Partial capture
10-04 01:04	80m	- / -	UX5UO	+9 / -	14	Partial capture
10-04 00:59	40m	-11 / -	IU8RFW	- / -25	2	Partial capture
10-04 00:43	40m	-12 / -	W4DJF	- / -4	2	✓ Closing fragment
09-27 23:40	40m	- / -	F6FDY	+1 / -	3	Partial capture
09-27 23:36	40m	-9 / -	VP2MAA	- / +4	4	✓ Closing fragment
09-27 22:48	40m	- / -	F6EAZ	-3 / -	2	Partial capture
09-27 22:39	40m	-10 / -	AC8JT	- / +6	2	Partial capture
09-27 22:38	40m	-10 / -	KQ4KKU	- / -11	2	✓ Closing fragment
09-27 22:36	40m	- / -	EA5HM	-12 / -	3	Partial capture
09-27 22:36	40m	-12 / -20	PA1CG	-12 / -3	4	✓ Full exchange observed
09-27 22:34	40m	- / -	SV1HFE	+4 / -	16	Partial capture
09-27 06:57	40m	- / -	G0BLB	-12 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
214930 +10  604  W1DFW PD0IFI R-05
214930  +3  689  W1DFW G4YAN R-08
215000 +13  604  W1DFW PD0IFI R-05
215000  -1  689  W1DFW G4YAN R-08
215030  +5  693  W1DFW PB2A JO21 (x2)
215115 -15  863  G4YAN W1DFW RR73
215130 +10  771  W1DFW PD0IFI R-06
215130 -11 1540  W1DFW PA2JPD JO21
215200 +11  771  W1DFW PD0IFI 73
215200 -12 1693  W1DFW PB2A JO21
215200  -4  240  W1DFW LB7ZG JP50 (x2)
030615  +0  715  W1DFW EA5HM IM99 (x2)

80m

UTC    dB Audio  Message
011215 +12 1422  W1DFW UX5UO KO50 (x2)
012500  -5 1877  W1DFW R2AL KO85 (x2)
012530  -3 1454  W1DFW LY8O KO25
012530  +6  888  W1DFW DK1ML -12
012600  +1 1877  W1DFW R2AL KO85
012600  +3  888  W1DFW DK1ML RR73
012630  +4 1877  W1DFW R2AL KO85
012630  +0 1454  W1DFW LY8O KO25
012700  -1 1651  W1DFW IU8SDA JN71
064630  -5  455  W1DFW F1RHS -13 (x2)
064730  +3  443  W1DFW PA3FPQ JO32
064900 -17 2071  W1DFW EA1DR -04

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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