DC3AK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DC3AK, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-09-08.

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 9 FT8 messages attributed to DC3AK 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 (78%), followed by 20 m (11%) and 10 m (11%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-21 dB

Estimated median S/N

Bands

40m · 7 20m · 1 10m · 1

First attributed message: 2026-07-25
Last attributed message: 2026-09-08 16:52 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 3 UTC dates
Estimated median S/N: -21 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 0, 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. 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 DC3AK in decoded directed-looking exchanges:

YO4NF · Romania ×2 E75W · Bosnia-Herzegovina F1PBZ · France F5ADE · France HB9EFK · Switzerland IK1RQX · Italy IU2EBR · Italy S55A · Slovenia 9A5E · Croatia CQ7FM · Portugal DH1FA · Fed. Rep. of Germany EA8UP · Canary Islands

Most frequent locator attributed to DC3AK

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: JO62 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-09-08 16:52 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	DC3AK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 16:52	40m	- / -	DL6EL	+8 / -	2	Partial capture
09-08 16:49	40m	-22 / -20	YO4NF	-4 / -8	5	✓ Full exchange observed
09-08 16:47	40m	-21 / +3	PD0IFI	-4 / -	4	✓ Closing observed
09-08 16:42	40m	- / -8	F6BEC	-2 / -	3	✓ Closing fragment
09-07 17:29	40m	- / -	DG6ITP	+3 / -	2	Partial capture
08-21 15:06	10m	- / -	IK4RVY	-23 / -	3	Partial capture
08-21 15:03	10m	- / -	IK4LZH	-6 / -	3	Partial capture
08-21 15:02	10m	- / -	IU2VYQ	-20 / -	2	Partial capture
08-21 15:01	10m	- / +1	IU2EBR	-4 / -	2	✓ Closing fragment
08-21 14:56	10m	- / -13	IK1RQX	0 / -	4	✓ Closing fragment
08-21 14:55	10m	- / -14	HB9EFK	+7 / -	2	✓ Closing fragment
08-21 14:48	10m	- / -11	F5ADE	-2 / -	4	✓ Closing fragment
08-07 13:44	10m	- / -15	F1PBZ	+2 / -	2	✓ Closing fragment
08-06 14:52	20m	- / -16	DH1FA	-20 / -	2	✓ Closing fragment
07-30 16:21	20m	- / -15	LZ1ZF	-8 / -	2	✓ Closing fragment
07-25 17:17	20m	- / -	9A4ZM	-5 / -	2	Partial capture
07-25 17:08	20m	- / -	PE9JAN	-5 / -	2	Partial capture
07-25 16:11	20m	- / -17	9A5E	+6 / -	2	✓ Closing fragment
07-24 15:53	20m	- / -20	RA9LL	-15 / -	2	✓ Closing fragment
07-24 15:26	20m	- / -16	PD4HT	-18 / -	2	✓ Closing fragment
07-16 20:45	20m	- / -13	JF4VZT	-3 / -	7	Partial capture
07-16 18:38	20m	- / -17	CQ7FM	-14 / -	2	✓ Closing fragment
07-16 14:11	20m	- / -9	F1PSX	-16 / -	6	✓ Closing fragment
07-16 14:04	20m	- / -	F4FEX	-11 / -	2	✓ Closing fragment
07-16 13:55	20m	- / -14	F4FSY	-8 / -	2	✓ Closing fragment
07-16 13:31	20m	- / -1	F1PBZ	-14 / -	2	Partial capture
07-16 12:58	20m	- / -11	RK4F	-17 / -	2	✓ Closing fragment
07-16 11:58	20m	- / -	LZ3CB	-2 / -	2	Partial capture
07-16 11:50	20m	- / -7	F5HNQ	-7 / -	3	✓ Closing fragment
07-16 11:48	20m	- / -14	EB3JT	-14 / -	3	✓ Closing fragment
07-16 11:35	20m	- / -12	G4DBW	-2 / -	2	✓ Closing fragment
07-15 21:38	20m	- / -4	EA8UP	-6 / -	2	✓ Closing fragment
07-14 21:33	40m	- / -11	IN3IZQ	-16 / -	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
164715 +13 2881  DC3AK UA3QNA -10
164715  -3 2185  DC3AK PD0IFI JO32 (x2)
164800 -21 1393  PD0IFI DC3AK RRR
164815  -7 2185  DC3AK PD0IFI 73
164900 -20 1392  CQ DC3AK JO62
164915  -4 1391  DC3AK YO4NF -20
164930 -24 1392  YO4NF DC3AK R-08
164945  -5 1391  DC3AK YO4NF RR73
165000 -19 1393  YO4NF DC3AK R-08
165045  -2 1391  DC3AK YO4NF RR73
165215  -7 1073  DC3AK PA7ZZ -13
165230 -17 1392  CQ DC3AK JO62
165245  +5  496  DC3AK DL6EL JN57 (x2)

10m

UTC    dB Audio  Message
145745  +1 2108  DC3AK IK1RQX R-13 (x2)
150145  -3 1066  DC3AK IU2EBR +01 (x2)
150245 -20 1350  DC3AK IU2VYQ JN45 (x2)
150315  -6  489  DC3AK IK4LZH JN54 (x3)
150615 -23 1985  DC3AK IK4RVY JN64 (x3)
161245 -19 1336  DC3AK S55A RR73
162745 -14 2222  DC3AK E75W RR73
173015 -24 1651  DC3AK M0BEW -10

20m

UTC    dB Audio  Message
155330 -16 2418  DC3AK RA9LL RR73
121100 -23 1871  DC3AK F1PPH JN25
155315 -18 1876  SP9KM DC3AK JO62
161145  +6 2207  DC3AK 9A5E -17 (x2)
170815 -11 1833  DC3AK DL1UDO JO31
170845  -2  851  DC3AK PE9JAN JO22 (x2)
171715  -7 1870  DC3AK 9A4ZM JN86 (x3)
162115  -4 1062  DC3AK LZ1ZF -15 (x2)
145230 -19 1807  DC3AK DH1FA -16 (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.

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