DL9HL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO50

Receiver-side FT8 activity involving DL9HL, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-08-05.

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 DL9HL as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (44%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 5 20m · 4

First attributed message: 2026-06-26
Last attributed message: 2026-08-05 15:37 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 2 UTC dates
Estimated median S/N: -10 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 3.

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 DL9HL in decoded directed-looking exchanges:

DA1MHH · Fed. Rep. of Germany G4YLJ · England M0BOB · England

Most frequent locator attributed to DL9HL

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: JO50 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 770 km (approx.)
Last such locator decoded: 2026-08-05 15:33 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	DL9HL S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-12 15:39	20m	- / -10	GJ0KYZ	-16 / -	2	Partial capture
08-12 15:35	20m	- / -	DA1MHH	-17 / -	2	✓ Closing fragment
08-05 15:36	40m	-8 / -	M0BOB	- / -5	2	✓ Closing fragment
08-05 15:32	40m	-8 / -	UG4L	- / -	2	Partial capture
06-27 09:58	20m	- / -12	G4YLJ	-18 / -	2	✓ Closing fragment
06-26 10:02	20m	-19 / -	G0GDA	- / -10	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
095700 -10 2644  JI1CAZ DL9HL JO50
095900 -18 1555  IS0LBE DL9HL JO50
100245 -21 1456  G0GDA DL9HL JO50 (x2)
095830 -20 1295  DL9HL G4YLJ -12 (x2)
153515 -16 1912  DL9HL DA1MHH +17 (x2)
153915 -17 2244  DL9HL GJ0KYZ -10 (x2)

40m

UTC    dB Audio  Message
152900 -23 1670  SM0FVI/3 DL9HL JO50
153245  -8  593  UG4L DL9HL JO50 (x2)
153645  -9  535  M0BOB DL9HL R-05 (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