DL4OAJ/QRP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany

Receiver-side FT8 activity involving DL4OAJ/QRP, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-08-31.

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 26 FT8 messages attributed to DL4OAJ/QRP as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (77%); the estimated median was -20 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

20m · 26

First attributed message: 2026-07-14
Last attributed message: 2026-08-31 10:56 UTC

Observed FT8 message patterns

Attributed sample: 26 messages
Active dates: 7 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -24 to -12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 1.

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 DL4OAJ/QRP in decoded directed-looking exchanges:

HF45OA · Poland SP6ATG · Poland

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.

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	DL4OAJ/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 06:19	40m	- / -	S57X	-2 / -	2	Partial capture
09-17 12:15	40m	- / -	OM1AN	-2 / -	2	Partial capture
08-31 10:57	20m	- / -14	US2YW	+12 / -	3	Partial capture
08-31 10:56	20m	- / -	<...>	0 / -	2	✓ Closing fragment
08-16 09:17	40m	- / -	<...>	-13 / -	2	✓ Closing fragment
07-29 12:34	20m	- / -	<...>	-2 / -	2	✓ Closing fragment
07-27 07:44	20m	-21 / -17	9A4ZM	-10 / -8	3	Partial capture
07-16 10:48	20m	-18 / -	<...>	-8 / -	5	✓ Closing fragment
07-16 10:44	20m	-23 / -	<...>	-20 / -	2	✓ Closing fragment
07-16 10:33	20m	- / -	R6AC	-18 / -	2	Partial capture
07-16 10:31	20m	-22 / -	<...>	- / -	2	Partial capture
07-16 10:28	20m	-24 / -	<...>	- / -	2	Partial capture
07-14 09:11	20m	-24 / -	LY1CZ	- / -	2	Partial capture
07-14 08:41	20m	-16 / -	<...>	- / -	2	Partial capture
07-13 07:34	20m	- / -	<...>	+1 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
161715  -6 1302  DL4OAJ/QRP <...> RR73 (x6)
121515  +1 1831  DL4OAJ/QRP OM1AN JN88 (x2)
061945  -1 1841  DL4OAJ/QRP S57X JN76 (x2)
075915 -12 1584  DL4OAJ/QRP <...> RR73 (x3)

20m

UTC    dB Audio  Message
081545  -8 1677  DL4OAJ/QRP <...> RR73 (x6)
101145 -12  920  <...> DL4OAJ/QRP (x2)
105615  -9 1089  DL4OAJ/QRP <SP6ATG> RR73
105630 -12 1091  LZ1ZF DL4OAJ/QRP R-06
105645  -9 1088  DL4OAJ/QRP <...> RR73
105715 +14 1092  DL4OAJ/QRP US2YW KN28 (x3)
105845 +10 1092  DL4OAJ/QRP <...> 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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