DL9OBY — 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: JO41

Receiver-side FT8 activity involving DL9OBY, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-10-29 and 2026-11-02.

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 38 FT8 messages attributed to DL9OBY as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 38

First attributed message: 2026-10-29
Last attributed message: 2026-11-02 14:46 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 4 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -15 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 17, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL9OBY in decoded directed-looking exchanges:

4X1UF · Israel CR7BUJ · Portugal DJ2PW · Fed. Rep. of Germany DL8WEM · Fed. Rep. of Germany DL9YNG · Fed. Rep. of Germany G0RVY · England M0CKX · England SP4MPH · Poland SP9W · 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.

Most frequent locator attributed to DL9OBY

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: JO41 · 22 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-11-02 14:45 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	DL9OBY S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 14:45	40m	-11 / -10	G0RVY	-16 / -13	5	✓ Full exchange observed
10-31 12:23	10m	- / -2	4X1UF	-1 / -	2	✓ Closing fragment
10-31 11:58	10m	- / -6	CR7BUJ	-7 / -	2	✓ Closing fragment
10-31 07:23	40m	-11 / -	UKRAINI	- / -6	5	Partial capture
10-31 07:21	40m	-10 / -	F1RCQ	- / -	2	Partial capture
10-31 07:18	40m	-8 / -	UT/WE9G	- / -	3	Partial capture
10-31 07:16	40m	-4 / -	EI/SQ1MP	- / -	3	Partial capture
10-31 07:15	40m	-7 / -	CT7BRV	- / -11	2	Partial capture
10-30 21:06	160m	- / -16	PI4DX	-14 / -	12	Partial capture
10-30 20:58	40m	-19 / -	EX7CQ	- / -	2	Partial capture
10-30 06:55	40m	-8 / +1	DJ2PW	0 / -	3	✓ Closing observed
10-30 06:53	40m	-3 / -	CT2FFC	- / -24	2	Partial capture
10-30 06:51	40m	- / -	DL8WEM	+6 / -	3	✓ Closing fragment
10-30 06:49	40m	-4 / 0	SP9W	-2 / +1	5	✓ Full exchange observed
10-30 06:47	40m	- / -14	SP4MPH	+10 / -	2	✓ Closing fragment
10-30 06:45	40m	+7 / -4	DL9YNG	-12 / -1	4	✓ Full exchange observed
10-30 06:41	40m	- / -16	ON1DGN	-14 / -	4	Partial capture
10-30 06:38	40m	-13 / -	M0CKX	- / -8	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072230  -6 1185  F1RCQ DL9OBY JO41
072345  -6 1184  UKRAINI DL9OBY JO41
072400  +6  727  DL9OBY YO1BRANCUSI -11
072415 -14 1184  UKRAINI DL9OBY R-06 (x4)
072800 -11 1181  TC2TR DL9OBY JO41
073400  -3 1179  CQ DL9OBY JO41
144445 -17  890  G4DBW DL9OBY R-05
144545 -11  889  G0RVY DL9OBY JO41
144600 -17  977  DL9OBY G0RVY -10
144615 -12  889  G0RVY DL9OBY R-13
144630 -14  977  DL9OBY G0RVY RR73
144645 -10  889  G0RVY DL9OBY 73

10m

UTC    dB Audio  Message
115815  -4 1166  DL9OBY CR7BUJ -06 (x2)
122345  -4  276  DL9OBY 4X1UF -02 (x2)
122615  -9  980  DL9OBY CT2HEX +04

160m

UTC    dB Audio  Message
210315 -10 1063  DL9OBY PI4DX -16 (x13)

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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