DL4WB — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO64

Receiver-side FT8 activity involving DL4WB, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-11-04.

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 30 FT8 messages attributed to DL4WB as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 40 m (30%) and 20 m (13%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 17 40m · 9 20m · 4

First attributed message: 2026-07-06
Last attributed message: 2026-11-04 15:19 UTC

Observed FT8 message patterns

Attributed sample: 30 messages
Active dates: 6 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 2.

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 DL4WB in decoded directed-looking exchanges:

ES6DO · Estonia OH3SW · Finland R1TBG · European Russia DK6WS · Fed. Rep. of Germany DO1BWS · Fed. Rep. of Germany OE3SKB · 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 DL4WB

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: JO64 · 21 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 784 km (approx.)
Last such locator decoded: 2026-11-04 15:19 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	DL4WB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 15:14	80m	-15 / -	SQ3POU	- / -	2	Partial capture
11-04 15:05	80m	-18 / -	OE3SKB	-23 / -6	3	✓ Closing observed
11-04 15:02	80m	-12 / -	DO1BWS	- / -	2	✓ Closing fragment
11-03 15:56	80m	-21 / -13	HB3YTK	-10 / -2	2	Partial capture
11-02 17:13	40m	-16 / -	UA9XL/P	- / -17	3	Partial capture
11-02 16:59	40m	- / -16	R1TBG	-1 / -	3	✓ Closing fragment
11-02 15:36	80m	-21 / -	UT4WY	- / -	3	Partial capture
10-30 18:23	80m	-7 / +3	DK6WS	+4 / 0	5	✓ Full exchange observed
10-30 18:04	40m	-14 / -4	OH3SW	+6 / -	3	✓ Closing observed
10-27 18:35	40m	- / -12	ES6DO	+6 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
182830 -15 1191  SV1DKR DL4WB JO64
153645 -19 1553  UT4WY DL4WB JO64 (x3)
155645 -10 1503  DL4WB HB3YTK -13
155700 -21 1504  HB3YTK DL4WB R-02
155930 -24 1443  DL4WB M5RJC -05
150200 -11  963  DO1BWS DL4WB JO64 (x2)
150500 -18 1496  OE3SKB DL4WB R-06 (x2)
150545 -23 1497  DL4WB OE3SKB RR73
151430 -14 1256  SQ3POU DL4WB JO64 (x2)
151930 -13 1058  SQ2NUH DL4WB JO64

40m

UTC    dB Audio  Message
180400 -14  588  OH3SW DL4WB JO64
180415 +10  588  DL4WB OH3SW -04 (x2)
181645 -16  845  OX3AH DL4WB JO64
165945  -1  964  DL4WB R1TBG -16 (x3)
170230 -15  822  9A4AA DL4WB JO64
170830 -15  803  UA9XL/P DL4WB R-03 (x4)
151815  -5  346  DL4WB PF40EUDXF +08
152015 -18 1038  GX3ABG DL4WB JO64
152115 -17 1035  UI6O DL4WB JO64

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee