W4DCL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM95

Receiver-side FT8 activity involving W4DCL, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 80m, 60m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-08-30.

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 22 FT8 messages attributed to W4DCL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (73%), followed by 60 m (27%). 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 (77%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

80m · 16 60m · 6

First attributed message: 2026-07-11
Last attributed message: 2026-08-30 03:07 UTC

Observed FT8 message patterns

Attributed sample: 22 messages
Active dates: 3 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -24 to -14 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 0.

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 W4DCL in decoded directed-looking exchanges:

F5MYK · France ×2 EA1IOK · Spain EC7K · Spain G8OO · England HB9ALO · Switzerland IK4CBO · Italy IS0BOZ · Sardinia IT9JWH · Sicily KJ5LMM · United States PI4DX · Netherlands DL4ME · Fed. Rep. of Germany EC1A · Spain

Most frequent locator attributed to W4DCL

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: EM95 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,876 km (approx.)
Last such locator decoded: 2026-07-11 02:57 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	W4DCL S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 04:49	60m	- / -	SP8AWL	+12 / -	4	Partial capture
08-30 04:47	60m	- / -18	G8OO	-14 / -	2	✓ Closing fragment
08-30 04:23	60m	- / -3	IT9JWH	+2 / -	4	✓ Closing fragment
08-30 04:22	60m	- / -5	EC7K	-6 / -	2	✓ Closing fragment
08-30 04:19	60m	- / -	DL9KM	-22 / -	6	Partial capture
08-30 04:19	60m	- / -12	IS0BOZ	-5 / -	2	✓ Closing fragment
08-30 03:52	60m	- / -5	EA1IOK	+2 / -	2	✓ Closing fragment
08-30 03:50	60m	- / -10	PE1MHY	-6 / -	5	Partial capture
08-30 03:45	60m	- / -	IU2RJH	-14 / -	3	Partial capture
08-30 03:44	60m	- / -10	PE1MHY	-8 / -	4	Partial capture
08-30 03:40	60m	- / -	IW9FRA	-16 / -	8	Partial capture
08-30 03:38	60m	- / -2	F5MYK	-6 / -	2	✓ Closing fragment
08-30 03:03	60m	- / -3	PI4DX	0 / -	2	✓ Closing fragment
08-30 03:02	60m	-21 / -	VA2HMD	- / +1	2	Partial capture
08-01 05:13	20m	- / -	UR9QQ	-10 / -	4	Partial capture
08-01 04:36	60m	- / -	DH1BBO	-15 / -	8	Partial capture
08-01 04:35	60m	- / -8	HB9ALO	0 / -	2	✓ Closing fragment
07-26 03:45	60m	- / -	DH1BBO	-18 / -	4	Partial capture
07-26 03:41	60m	- / -9	IK4CBO	-10 / -	2	✓ Closing fragment
07-26 02:19	60m	- / -12	ER3UA	+2 / -	2	Partial capture
07-26 02:08	80m	- / -	DO1ID	+14 / -	4	Partial capture
07-26 01:50	80m	- / -13	SP2FWC	+20 / -	3	✓ Closing fragment
07-11 02:57	80m	-16 / -6	F5MYK	-8 / -21	7	✓ Full exchange observed
07-11 02:55	80m	-18 / -9	OE7UU	+11 / -14	5	✓ Full exchange observed
07-11 02:38	80m	-17 / -7	EC1A	-3 / -10	5	✓ Full exchange observed
07-11 02:37	80m	-20 / -	K4YJ	- / -4	2	✓ Closing fragment
07-11 02:37	80m	- / -	IW9FRA	-16 / -	6	Partial capture
07-11 02:36	80m	-24 / -15	DL4ME	+10 / -	3	✓ Closing observed
07-11 02:31	80m	- / -	IT9VCE	+8 / -	3	Partial capture
07-11 02:30	80m	- / -11	HB9EFK	+17 / -	2	✓ Closing fragment
07-11 02:29	80m	- / -	IW9FRA	-8 / -	6	Partial capture
07-11 02:28	80m	- / +4	FP/KV1J	-10 / -	2	Partial capture
07-11 02:21	80m	- / -10	4Z5AV	-2 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
042215  -6  465  W4DCL EC7K R-05
042230 -24 1860  W4DCL DL9KM JN68
042245  -7  465  W4DCL EC7K 73
042330  +0  688  W4DCL IT9JWH JM76 (x4)
044730 -14 2032  W4DCL G8OO R-18
044800 -24 1530  W4DCL IW9FRA JM68
044800 -15 2031  W4DCL G8OO 73
044930 +11 2362  W4DCL SP8AWL KO11 (x5)

20m

UTC    dB Audio  Message
051345 -10 1515  W4DCL UR9QQ KN77 (x4)

80m

UTC    dB Audio  Message
025745 -15  504  F5MYK W4DCL EM95
025800  -9 2208  W4DCL F5MYK -08
025815 -17  504  F5MYK W4DCL R-21 (x2)
025900  -1 2208  W4DCL F5MYK RR73
025915 -17  503  F5MYK W4DCL 73
015030 +20  405  W4DCL SP2FWC -13 (x3)
020815 +12 2578  W4DCL IQ4JO JN63
020815 +15  382  W4DCL DO1ID JO41 (x2)
020915  -1 1672  W4DCL DO1MER JO43
020915 +14  382  W4DCL DO1ID JO41 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee