DA0O — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO30

Receiver-side FT8 activity involving DA0O, decoded by SO8OO in southeastern Poland. 2,622 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-09-27.

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 2,622 FT8 messages attributed to DA0O as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 80 m (31%) and 60 m (25%). Most decodes (74%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

2,622

Messages attributed

UTC dates decoded

201

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 801 60m · 665 40m · 1,154 20m · 2

First attributed message: 2026-07-11
Last attributed message: 2026-09-27 12:02 UTC

Observed FT8 message patterns

Attributed sample: 2,622 messages
Active dates: 19 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 372, moderate (-15 to -9 dB) 862, strong (≥ -8 dB) 1,388.

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 DA0O in decoded directed-looking exchanges:

G4DZE · England ×6 F1IQH · France ×5 EC3A · Spain ×4 F5RMK · France ×4 MM5DWW · Scotland ×4 VE1YX · Canada ×4 ON4MAP · Belgium ×4 DL9KM · Fed. Rep. of Germany ×3 ER1CW · Moldova ×3 F5RRS · France ×3 HA7TM · Hungary ×3 LZ2VQ · Bulgaria ×3

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 DA0O

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: JO30 · 1,699 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-09-27 12:02 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	DA0O S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-26 07:38	40m	-18 / -	IZ0ZZV	- / -	5	Partial capture
09-26 07:37	40m	- / -	IK2UCK	-14 / -	2	Partial capture
09-26 06:30	40m	-21 / -	RA4ADF	- / -	3	Partial capture
09-26 06:21	40m	-23 / -	DL5AN	- / -	3	Partial capture
09-25 23:39	80m	- / -	DO5HB	-12 / -	2	Partial capture
09-25 23:36	80m	-1 / -	RA4ADF	- / -	3	Partial capture
09-25 23:33	80m	-1 / -	UN7JO	- / -	4	Partial capture
09-25 23:29	80m	-4 / +7	ON4MAP	-19 / +3	5	✓ Full exchange observed
09-25 23:26	80m	-4 / -	RA4ADF	- / -	5	Partial capture
09-25 23:19	80m	-7 / -	RM8T	- / -	5	Partial capture
09-25 23:04	80m	-7 / -6	IZ2MHT	+1 / -	2	Partial capture
09-25 22:59	80m	-17 / -10	4X1UF	-17 / -16	8	✓ Full exchange observed
09-25 22:57	80m	-6 / -	OL900LTV	- / -10	2	Partial capture
09-25 22:48	80m	-13 / -	UA9CR	- / -	5	Partial capture
09-25 22:46	80m	-8 / +5	OZ4AFQ	+1 / +3	4	✓ Full exchange observed
09-25 22:42	80m	-12 / -	UN8DSW	- / -	2	Partial capture
09-25 22:40	80m	-8 / -6	G7KHF	-9 / -3	2	Partial capture
09-25 22:39	80m	-2 / -6	EA3AKY	-1 / -2	5	✓ Full exchange observed
09-25 22:35	80m	-14 / -20	EA4DL	-19 / -17	8	Partial capture
09-25 22:32	80m	- / -11	DL5DQZ	-8 / -	5	✓ Closing fragment
09-25 22:31	80m	0 / 0	G4DZE	+1 / -1	5	✓ Full exchange observed
09-25 22:28	80m	-20 / -	4X1UF	- / -	5	Partial capture
09-25 22:23	80m	-6 / -	HB9EKJ	- / -14	2	Partial capture
09-25 22:22	80m	-4 / -	RN2F	- / -	2	Partial capture
09-25 22:20	80m	-8 / -	KP4AA	- / -	2	Partial capture
09-25 22:17	80m	- / -2	DO4TYW	-5 / -	2	✓ Closing fragment
09-25 22:16	80m	-12 / -13	DA6OOM	-9 / -	4	Partial capture
09-25 22:10	80m	-8 / -	KP4AA	- / -	5	Partial capture
09-25 22:07	80m	-14 / -	9Y4D	- / -	3	Partial capture
09-25 22:05	80m	-3 / -10	RU4SO	+1 / -	3	✓ Closing observed
09-25 22:00	80m	- / -3	DO1OAS	-7 / -	6	Partial capture
09-25 21:57	80m	-4 / -	UB3UAC	- / -	4	Partial capture
09-25 21:56	80m	-10 / -2	9A5E	+10 / +2	5	✓ Full exchange observed
09-25 21:55	80m	-8 / -	G0RVY	-4 / -	3	✓ Closing observed
09-25 21:53	80m	-10 / -2	RA4Y	-5 / -8	6	✓ Full exchange observed
09-25 21:52	80m	-7 / -	DH1HF	-24 / -1	3	✓ Closing observed
09-25 21:51	80m	-12 / -	F5PBG	-12 / -1	3	✓ Closing observed
09-25 21:50	80m	-11 / -16	EW2ZC	+8 / -	4	✓ Closing observed
09-25 21:47	80m	-2 / -	GE7RTI	- / -	4	Partial capture
09-25 21:04	40m	-10 / -7	EA5KB	-14 / -8	5	✓ Full exchange observed
09-25 21:02	40m	-9 / -	TA3ZZ	- / -	5	Partial capture
09-25 20:57	40m	-2 / -	EA5BF	- / -	2	✓ Closing fragment
09-25 20:55	40m	-13 / -	BD8ELZ	- / -19	9	✓ Closing fragment
09-25 20:53	40m	-9 / -	BG4UCZ	- / -	4	Partial capture
09-25 20:50	40m	-12 / -9	EA1FE	-17 / -10	6	✓ Full exchange observed
09-25 20:48	40m	-7 / -	R2FDP	- / -	4	Partial capture
09-25 20:46	40m	-9 / -	HA1BF	- / -10	3	✓ Closing fragment
09-25 20:45	40m	-16 / -	DL3AS	- / -	2	✓ Closing fragment
09-25 20:42	40m	-11 / -	DF0NN	- / -	5	Partial capture
09-25 20:37	40m	-12 / -	KF8FXK	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
063200 -23 2191  RA4ADF DA0O JO30
063630 -24 1877  NF3R DA0O JO30
065330 -19 2354  OT7K DA0O JO30
070000 -15  638  F4MOJ DA0O JO30
070100 -17 1024  UA3ZMQ DA0O JO30
073345 -17 1542  DA0O SP1ZMO RR73
073715 -15 2293  DA0O IK2UCK JN45 (x2)
073830 -18 1195  IZ0ZZV DA0O JO30 (x5)
075015 -13 1624  DA0O SP7VCL -15
120245 -11  375  9A4AA DA0O JO30

80m

UTC    dB Audio  Message
232845  -6 2008  RA4ADF DA0O JO30
232915  -2  902  ON4MAP DA0O JO30
232930 -20  902  DA0O ON4MAP +07
232945  -7  902  ON4MAP DA0O R+03
233000 -18  902  DA0O ON4MAP RR73
233015  -4  902  ON4MAP DA0O 73
233315  -4 2507  UN7JO DA0O JO30 (x4)
233615  +0 2010  RA4ADF DA0O JO30 (x3)
233900 -16 2079  DA0O DO5HB JO40 (x2)

60m

UTC    dB Audio  Message
222945  -6 1869  KC1JOL DA0O JO30 (x2)
223600  -8 1528  DL1UDO DA0O JO30 (x5)
223845  -6 1869  KC1JOL DA0O JO30 (x3)
224115  +4  712  GX7RAF/P DA0O JO30
224130  -1  712  DA0O GX7RAF/P -09
224145  +6  712  GX7RAF/P DA0O R+02
224200  -6  712  DA0O GX7RAF/P RR73
224215  +5  712  GX7RAF/P DA0O 73

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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