DB3LO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO51

Receiver-side FT8 activity involving DB3LO, decoded by SO8OO in southeastern Poland. 134 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-04.

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 134 FT8 messages attributed to DB3LO as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 80 m (25%) and 20 m (25%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was +1 dB.

Overview

134

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 34 40m · 52 20m · 34 10m · 14

First attributed message: 2026-06-29
Last attributed message: 2026-09-04 18:44 UTC

Observed FT8 message patterns

Attributed sample: 134 messages
Active dates: 10 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -10 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 114.

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 DB3LO in decoded directed-looking exchanges:

DL6ZXG · Fed. Rep. of Germany ×4 RI1FJL · Franz Josef Land ×2 DO1MGN · Fed. Rep. of Germany ×2 EA8AP · Canary Islands F4FSY · France LZ4VR · Bulgaria 9A4ZM · Croatia BO0M · Taiwan EB3JT · Spain IU2HUQ · Italy M7VME · England OE7MAH · Austria

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 DB3LO

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: JO51 · 74 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 779 km (approx.)
Last such locator decoded: 2026-09-04 18:43 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	DB3LO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 18:42	80m	+1 / -	UD8S	-19 / -18	5	✓ Closing observed
09-04 17:04	40m	+4 / -	RI1FJL	- / -18	5	✓ Closing fragment
09-04 16:53	40m	+6 / -	RI1FJL	- / -	5	Partial capture
09-02 17:14	40m	+2 / -	RI1FJL	- / -16	19	✓ Closing fragment
08-29 05:46	40m	-2 / -	OA4ENG	- / -13	3	Partial capture
08-17 19:08	80m	+1 / -	R8LCI	- / -26	25	Partial capture
08-17 18:30	80m	+4 / +4	DO1ARD	+4 / -2	5	✓ Full exchange observed
08-17 18:29	80m	+4 / -	DO1MGN	-14 / -5	4	✓ Closing observed
08-17 18:27	80m	+5 / +8	DL6ZXG	+8 / -	3	✓ Closing observed
08-16 11:43	10m	-4 / -21	LX1NO	-11 / -	4	Partial capture
08-16 11:28	10m	+8 / -	EA8AP	- / -7	2	✓ Closing fragment
08-16 11:26	10m	+6 / -	F4FSY	-18 / -18	5	✓ Closing observed
08-16 11:24	10m	+8 / -	LZ4VR	- / -8	2	✓ Closing fragment
08-16 11:22	10m	+9 / -	DL6ZXG	-1 / 0	4	✓ Full exchange observed
08-16 11:10	20m	-10 / -	OE7MAH	- / -17	2	✓ Closing fragment
08-16 11:07	20m	-8 / -	DL6ZXG	- / +2	2	✓ Closing fragment
08-16 11:04	20m	-7 / -	G5MJF	- / -7	5	Partial capture
08-16 11:02	20m	-14 / -	IU2HUQ	- / -11	2	✓ Closing fragment
08-16 10:58	20m	-4 / -9	EB3JT	+8 / -13	6	✓ Full exchange observed
08-09 07:35	40m	-10 / -	SP7TF	- / -3	2	✓ Closing fragment
08-09 07:33	40m	-10 / -10	DL6ZXG	-10 / -	3	✓ Closing observed
07-25 15:31	20m	-5 / -	9A4ZM	- / -3	2	✓ Closing fragment
07-25 15:29	20m	-8 / -	BO0M	- / -16	3	✓ Closing fragment
07-12 17:36	40m	+1 / -16	DL0SOP	-8 / -11	8	Partial capture
07-12 17:35	40m	-3 / -8	DL1YEG	-6 / -	3	✓ Closing observed
07-12 17:33	40m	+4 / -11	R3XBS	-12 / -10	3	Partial capture
07-12 17:30	40m	-4 / -	DL0SOP	- / -	4	Partial capture
06-29 16:44	20m	+8 / -	4S6ARW	- / -11	2	Partial capture
06-29 16:40	20m	+4 / -	YB1GIP	- / -	6	Partial capture
06-29 16:35	20m	-12 / -	<...>	- / -13	2	Partial capture
06-29 16:34	20m	-14 / -	HB0/WE9G	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
191630  +4 2373  R8LCI DB3LO R-23 (x10)
184230  +6 2318  UD8S DB3LO JO51 (x3)
184345 -19 1606  DB3LO UD8S RR73
184400  +0 2318  UD8S DB3LO 73

40m

UTC    dB Audio  Message
172445  +0  787  RI1FJL DB3LO JO51 (x14)
170815  +1  363  F5LMJ DB3LO RR73

10m

UTC    dB Audio  Message
112245  +1 2524  DB3LO DL6ZXG RR73
112430  +6 2582  LZ4VR DB3LO -08 (x2)
112530  +2 2581  EA3AVS DB3LO R-06
112600  +0 2581  F4FSY DB3LO -18 (x3)
112715 -18 1720  DB3LO F4FSY 73
112730 +10 2581  F4FSY DB3LO 73
112800  +7 2581  EA8AP DB3LO R-07 (x2)
114300  -4 2466  LX1NO DB3LO JO51 (x3)
114515 -11  567  DB3LO LX1NO -21

20m

UTC    dB Audio  Message
110015  -3 2860  EB3JT DB3LO RR73
110030 +14 2859  DB3LO EB3JT 73
110145  -6 2860  CQ DB3LO JO51
110245 -12 1625  IU2HUQ DB3LO R-11 (x2)
110330 -23 1362  DB3LO ON1DGN -12
110445  -5  619  G5MJF DB3LO R-07 (x5)
110745  -4  632  DL6ZXG DB3LO +02 (x2)
111045  -9  632  OE7MAH DB3LO R-17 (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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