DL3SDE — 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: JN48

Receiver-side FT8 activity involving DL3SDE, decoded by SO8OO in southeastern Poland. 130 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-10-22.

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 130 FT8 messages attributed to DL3SDE as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (63%), followed by 40 m (23%) and 20 m (14%). The busiest six-hour window was 02:00-08:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

130

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 82 40m · 30 20m · 18

First attributed message: 2026-06-23
Last attributed message: 2026-10-22 06:22 UTC

Observed FT8 message patterns

Attributed sample: 130 messages
Active dates: 8 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -23 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 40.

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 DL3SDE in decoded directed-looking exchanges:

OA4ENG · Peru ×2 EA8DOY · Canary Islands EA5HM · Spain DA1ST · Fed. Rep. of Germany F1PBZ · France F5LMJ · France

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 DL3SDE

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: JN48 · 96 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-10-22 06:21 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	DL3SDE S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 06:17	40m	-5 / -	OA4ENG	- / -9	11	✓ Closing fragment
10-22 06:12	40m	-4 / -	OA4ENG	- / -9	6	Partial capture
10-22 06:07	40m	-2 / -	C5R	- / -10	3	Partial capture
10-10 05:52	80m	- / -11	F1PBZ	-6 / -	2	✓ Closing fragment
10-10 05:50	80m	-24 / -11	DA1ST	+3 / +1	4	✓ Full exchange observed
10-10 05:45	80m	-10 / -	TI2SD	- / -	3	Partial capture
10-10 05:42	80m	-8 / -	VP2MAA	- / -	2	Partial capture
10-10 05:25	80m	-16 / -	VP2MAA	- / -	10	Partial capture
10-09 15:18	80m	-18 / -	UN0GY	- / -26	14	Partial capture
10-09 15:12	80m	-21 / -	UN0GY	- / -26	5	Partial capture
10-09 14:57	80m	-21 / -	UN0GY	- / -	15	Partial capture
08-29 17:08	20m	0 / -	EA8DOY	- / -	2	✓ Closing fragment
08-24 02:07	40m	-7 / -10	EA5HM	-15 / -	4	✓ Closing observed
08-24 02:04	40m	-3 / -	OA4ENG	- / -22	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
061345  -7 2249  OA4ENG DL3SDE JN48 (x15)

80m

UTC    dB Audio  Message
053400 -21 1082  VP2MAA DL3SDE JN48 (x3)
054500  -8 2971  TI2SD DL3SDE JN48 (x3)
054730 -11 2971  VP2MAA DL3SDE JN48
055000 -24 1745  CQ DL3SDE JN48
055015  +6 1744  DL3SDE DA1ST JO41
055030 -24 1745  DA1ST DL3SDE +01
055045  +5 1744  DL3SDE DA1ST R-11 (x2)
055215 -10 2552  DL3SDE F1PBZ -11 (x2)
055530 -24 1745  F5LMJ DL3SDE RR73

20m

UTC    dB Audio  Message
024215 -12 2405  TJ1GD DL3SDE JN48
170815  -6 1865  EA8DOY DL3SDE JN48 (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.

CW

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

Explore CW reception at SO8OO

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