DL1LDB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO61

Receiver-side FT8 activity involving DL1LDB, decoded by SO8OO in southeastern Poland. 36 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-11 and 2026-09-19.

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 36 FT8 messages attributed to DL1LDB as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (97%), followed by 40 m (3%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 35 40m · 1

First attributed message: 2026-09-11
Last attributed message: 2026-09-19 22:12 UTC

Observed FT8 message patterns

Attributed sample: 36 messages
Active dates: 2 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +3 dB
Recurring-pattern threshold: Not met

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

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 DL1LDB in decoded directed-looking exchanges:

8S2C · Sweden 9A3TN · Croatia 9A5E · Croatia DK9WI · Fed. Rep. of Germany MI0OBC · Northern Ireland

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 DL1LDB

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: JO61 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 642 km (approx.)
Last such locator decoded: 2026-09-19 22:12 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	DL1LDB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 22:12	80m	-2 / -	HF40BLP	- / -	2	Partial capture
09-19 21:55	80m	-8 / -	RT4A/P	- / -	3	Partial capture
09-19 21:40	80m	-6 / -	DB100FT	- / -	2	Partial capture
09-19 21:07	80m	+2 / -	3Z100PKP	- / +2	2	Partial capture
09-11 22:16	80m	- / -17	8S2C	-4 / -	2	✓ Closing fragment
09-11 22:10	80m	-8 / -16	3Z100PKP	+20 / -	3	Partial capture
09-11 21:57	80m	-8 / -12	9A3TN	+4 / +5	5	✓ Full exchange observed
09-11 21:52	80m	-10 / -	DK4RH	- / -	5	Partial capture
09-11 21:44	80m	-21 / -7	9A5E	+4 / -	4	✓ Full exchange observed
09-11 21:38	80m	-19 / -13	HF100PKP	+1 / -	3	Partial capture
09-11 21:35	80m	-15 / -5	DK9WI	0 / -	5	✓ Full exchange observed
09-11 21:22	80m	-8 / -	SO100PKP	- / -	2	Partial capture
09-11 21:11	80m	+4 / -15	SP100PKP	+17 / +7	7	Partial capture
09-11 11:55	40m	-24 / +2	SP100PKP	+3 / -	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
221130 +21 2825  DL1LDB RR73; SP2BT <...> -16
221630  -2 2663  DL1LDB 8S2C -17 (x2)
210715  +3 1703  <3Z100PKP> DL1LDB JO61 (x2)
210800  +6 1703  DL1LDB RR73; RW1CW <...> -02
214015 -11 1441  DB100FT DL1LDB JO61 (x2)
214300  -7 1503  DL1LDB DO9YU JO41
215400  -1  338  HF40BLP DL1LDB JO61
215500  -9 1938  RT4A/P DL1LDB JO61 (x3)
221200  -2  338  HF40BLP DL1LDB JO61 (x2)

40m

UTC    dB Audio  Message
115515 -24 1298  SP100PKP DL1LDB JO61
115530  +3 1297  DL1LDB SP100PKP +02

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