DL5SDN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JN48

Receiver-side FT8 activity involving DL5SDN, decoded by SO8OO in southeastern Poland. 76 related FT8 messages, 4 CQ messages, observed on 80m, 40m, 20m, across 4 UTC dates. Heard between 2026-07-21 and 2026-08-20.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

Related messages

CQ messages

UTC dates heard

-2 dB

Mean decoder S/N

Bands

80m 40m 20m

First seen: 2026-07-21
Last seen: 2026-08-20 18:32 UTC

Frequent QSO partners observed at SO8OO

Stations DL5SDN worked most often, as logged from our receiver:

DM5JBN · Fed. Rep. of Germany ×2 DG8HJ · Fed. Rep. of Germany ×2 DA6WA · Fed. Rep. of Germany SP6FME · Poland DL6MRM · Fed. Rep. of Germany DF0GDX · Fed. Rep. of Germany DJ1OJ · Fed. Rep. of Germany DK3ME · Fed. Rep. of Germany DH1VY · Fed. Rep. of Germany JH2VVH · Japan HB9CEX · Switzerland DB4SNK · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by DL5SDN

Approximate centre of JN48, decoded 2026-08-20 20:26 UTC. A transmitted locator is not proof of the operator's permanent location.

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	DL5SDN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 20:32	80m	-2 / -	DM5JBN	-8 / +10	3	✓ Closing observed
08-20 20:29	80m	+1 / -	DK5WL	- / +10	2	✓ Closing fragment
08-20 20:26	40m	+12 / -7	UX7QV	-3 / -1	5	✓ Full exchange observed
08-20 20:24	40m	+8 / -2	F6BHK	-3 / -	5	✓ Full exchange observed
08-20 20:21	40m	+3 / -4	UT3RO	-5 / -8	6	✓ Full exchange observed
08-20 20:20	40m	+2 / +8	DH1VY	-4 / -3	5	✓ Full exchange observed
08-20 20:18	40m	+2 / +10	DL1EDR	+3 / -	4	✓ Closing observed
08-20 20:13	80m	- / -	DD7EE	-2 / -	3	Partial capture
08-20 20:11	80m	0 / -	<...>	- / +1	3	Partial capture
08-20 20:01	80m	+4 / -4	DG8HJ	-6 / +10	5	✓ Full exchange observed
08-20 20:00	80m	+3 / -	DA6WA	- / -14	2	✓ Closing fragment
08-20 19:59	80m	- / +4	LZ1GC	+10 / -	3	✓ Closing fragment
08-20 19:44	40m	+7 / -	DJ1OJ	+12 / -	8	✓ Full exchange observed
08-20 19:44	40m	- / -	PD0LBY	-1 / -	3	Partial capture
08-20 19:41	40m	+10 / -	DM2HK	+9 / -	7	✓ Full exchange observed
08-20 19:32	40m	+8 / -3	SP6FME	-10 / +10	6	✓ Full exchange observed
08-20 19:30	40m	+4 / -	DK4REX	- / -23	2	✓ Closing fragment
08-20 19:29	40m	+8 / -11	EA5HM	-7 / -9	7	✓ Full exchange observed
08-20 19:28	40m	+9 / -	DK3ME	+4 / -	4	✓ Full exchange observed
08-20 19:27	40m	+8 / +2	DG8HJ	+2 / -	8	✓ Full exchange observed
08-20 19:27	40m	+9 / -1	DB4SNK	-3 / -	3	✓ Full exchange observed
08-20 19:25	40m	+10 / -	JH2VVH	- / -1	4	✓ Closing fragment
08-20 19:24	40m	+9 / -	BG5JGG	- / -14	2	Partial capture
08-20 19:22	40m	+5 / -	LY5J	- / -	2	✓ Closing fragment
08-20 19:19	40m	+6 / -	DB3MAX	-1 / +6	7	✓ Full exchange observed
08-20 19:19	40m	+5 / +3	HB9CEX	-1 / +9	5	✓ Full exchange observed
08-20 19:16	40m	+9 / -	DL6MRM	+8 / -	6	✓ Closing observed
08-20 19:10	80m	+4 / -	DO1DX	- / +5	2	✓ Closing fragment
08-20 19:06	80m	+3 / -	DL1DUO	- / -	7	Partial capture
08-20 18:59	40m	+12 / -1	DM5JBN	-3 / -	6	✓ Full exchange observed
08-16 14:55	40m	- / 0	DF2RG	-12 / -	2	✓ Closing fragment
08-16 14:48	40m	-18 / -	PE9JAN	- / -	2	✓ Closing fragment
08-16 14:46	40m	-22 / -1	DL3JPN	-19 / -1	2	Partial capture
08-16 14:19	40m	-19 / -	DL7AUB	-16 / -	11	✓ Full exchange observed
08-01 08:30	40m	-20 / -	PD1AC	- / -	2	✓ Closing fragment
08-01 08:25	40m	- / -3	UT4PA	-12 / -	4	✓ Closing fragment
08-01 08:20	40m	-21 / -	<...>	- / -	2	Partial capture
07-21 07:16	20m	- / -7	MM7CEH	-17 / -	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
202330  -4 2215  DL5SDN UT3RO 73
202345  +7 2263  CQ DL5SDN JN48
202400  -3 2263  DL5SDN F6BHK JN24
202415  +8 2263  F6BHK DL5SDN +12
202430  -2 2263  DL5SDN F6BHK R-02
202445  +8 2263  F6BHK DL5SDN RR73
202500  -5 2263  DL5SDN F6BHK 73
202545  +7 2262  CQ DL5SDN JN48 (x2)
202630  -4 2263  DL5SDN UX7QV KN29
202645 +12 2263  UX7QV DL5SDN -01
202700  -6 2263  DL5SDN UX7QV R-07
202715 +13 2263  UX7QV DL5SDN RR73
202730  +0 2263  DL5SDN UX7QV 73
204030 -10 2263  DL8OH DL5SDN 73

80m

UTC    dB Audio  Message
200145  +4 2302  DG8HJ DL5SDN +10
200200  -5 1614  DL5SDN DG8HJ R-04
200215  +4 2302  DG8HJ DL5SDN RR73
200230  -3 1614  DL5SDN DG8HJ 73
201115  -1 2302  <...> DL5SDN JN48 (x3)
201330  +1 1158  DL5SDN DD7EE JO41 (x3)
202930  +2 2228  DK5WL DL5SDN R+10 (x2)
203230  -5 2228  DM5JBN DL5SDN R+10
203245  -8 1180  DL5SDN DM5JBN RR73
203300  +0 2228  DM5JBN DL5SDN 73

20m

UTC    dB Audio  Message
071600 -20 1313  DL5SDN MM7CEH R-07 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.