DL4YDR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO32

Receiver-side FT8 activity involving DL4YDR, decoded by SO8OO in southeastern Poland. 2,494 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-07.

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 2,494 FT8 messages attributed to DL4YDR as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (78%), followed by 80 m (12%) and 10 m (5%). Most decodes (85%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

2,494

Messages attributed

UTC dates decoded

363

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 304 60m · 1,949 40m · 94 20m · 22 10m · 125

First attributed message: 2026-06-06
Last attributed message: 2026-10-07 15:16 UTC

Observed FT8 message patterns

Attributed sample: 2,494 messages
Active dates: 80 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -17.9 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 495, moderate (-15 to -9 dB) 1,193, strong (≥ -8 dB) 806.

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 DL4YDR in decoded directed-looking exchanges:

OM5JG · Slovak Republic ×3 9A7BB · Croatia ×2 DA0OIE · Fed. Rep. of Germany ×2 DF0AWG · Fed. Rep. of Germany ×2 DL6MRM · Fed. Rep. of Germany ×2 F5MYH · France ×2 OZ1SMB · Denmark ×2 4L7T · Georgia ×2 9A5TW · Croatia ×2 DL2AOM · Fed. Rep. of Germany ×2 DL2OAM · Fed. Rep. of Germany ×2 DL3HQL · Fed. Rep. of Germany ×2

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 DL4YDR

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: JO32 · 1,300 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,067 km (approx.)
Last such locator decoded: 2026-10-07 15:16 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	DL4YDR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 15:14	60m	-14 / -12	HA7UL	+1 / +1	5	✓ Full exchange observed
10-07 15:13	60m	-14 / -	PA0LAN	- / 0	2	✓ Closing fragment
10-07 15:10	60m	-8 / -3	DL4ALI	-4 / +8	5	✓ Full exchange observed
10-07 15:07	60m	-11 / -	G3PHO	- / +4	3	✓ Closing fragment
10-07 15:02	60m	-18 / -	M7ORI	- / -	3	Partial capture
10-07 14:59	60m	-16 / -	M0GDX	- / +5	3	✓ Closing fragment
10-06 16:26	60m	-14 / -	GM4JYB	- / -	2	Partial capture
10-06 16:22	60m	-14 / -	IU1HGN	-22 / -14	4	✓ Full exchange observed
10-06 16:19	60m	-12 / -	DG6FFS	- / -	2	Partial capture
10-06 16:14	60m	-8 / +3	F1TYP	-8 / -	5	✓ Full exchange observed
10-06 16:11	60m	-8 / +9	OE7OPJ	-10 / +3	5	✓ Full exchange observed
10-05 19:26	60m	-9 / -	DJ6OI/P	- / +4	3	✓ Closing fragment
10-05 19:25	60m	-12 / +5	SM7XON	-13 / +8	4	✓ Full exchange observed
10-05 19:24	60m	-12 / -8	IZ4JMA	-21 / -4	4	✓ Full exchange observed
10-05 19:21	60m	-15 / -2	PE3T	-2 / +9	5	✓ Full exchange observed
10-05 19:19	60m	-14 / -6	DK9OR	+2 / +5	5	✓ Full exchange observed
10-05 19:08	60m	-13 / -15	EA6LU	-2 / -6	5	✓ Full exchange observed
10-05 19:06	60m	-16 / -10	EA1AT	-10 / -	5	✓ Full exchange observed
10-05 19:05	60m	-16 / -	SN5WD	- / -9	2	✓ Closing fragment
10-05 19:03	60m	-16 / -	DG9VH	- / -7	2	Partial capture
10-05 18:59	60m	-17 / -	SA6DST	- / -9	4	✓ Closing fragment
10-05 18:56	60m	-16 / -6	F4HER	-7 / -	6	✓ Full exchange observed
10-05 16:36	60m	-13 / -	SP6IHE	- / -	3	✓ Closing fragment
10-05 16:35	60m	-8 / -	4L7T	- / -13	2	✓ Closing fragment
10-05 16:33	60m	-10 / -	DK9NP	+4 / +6	3	✓ Closing observed
10-05 15:46	60m	-14 / -	DL3DQL/P	-2 / -	4	✓ Closing observed
10-05 15:43	60m	-13 / -	DG1VL	+2 / +5	6	✓ Full exchange observed
10-05 15:37	60m	-16 / -1	PA0WCH	-8 / -	6	✓ Full exchange observed
10-04 17:37	60m	-13 / -	DG7FLA	- / -18	3	✓ Closing fragment
10-04 17:34	60m	-13 / -12	YL3CW	-9 / 0	5	✓ Full exchange observed
10-04 17:32	60m	-7 / -1	IK2AQZ	0 / +3	5	✓ Full exchange observed
10-04 17:29	60m	-6 / -10	G7RHF	-8 / 0	5	✓ Full exchange observed
10-04 17:28	60m	-8 / -2	OM5ZU	+3 / +9	5	✓ Full exchange observed
10-04 16:49	60m	+1 / -	ON7WM	+12 / -	5	✓ Full exchange observed
10-04 16:45	60m	-3 / +1	G4HUE	0 / +10	5	✓ Full exchange observed
10-04 15:55	60m	-2 / +7	DL9NCR	0 / -	5	✓ Full exchange observed
10-04 15:54	60m	-12 / -	SP7JLH	-3 / -	2	✓ Closing observed
10-04 15:50	60m	-12 / -1	OH6OK	-14 / -6	5	✓ Full exchange observed
10-04 15:11	60m	-8 / -	IW2HWN	- / -	2	Partial capture
10-03 18:25	60m	-5 / 0	HF1Z	-4 / -	5	✓ Full exchange observed
10-03 18:24	60m	-2 / +2	G0RWF	-14 / -2	5	✓ Full exchange observed
10-03 18:17	60m	-5 / +5	DH9YAX	-10 / -	4	✓ Full exchange observed
10-03 18:13	60m	-4 / -2	SP3EIE	-6 / -	6	✓ Full exchange observed
10-03 17:59	60m	-10 / -	ON4MDW	- / +5	3	✓ Closing fragment
10-03 17:52	60m	-12 / -	DB1HEF	- / -14	3	✓ Closing fragment
10-02 19:28	60m	-10 / -	DK3RV	-10 / -	2	✓ Closing observed
10-02 17:44	60m	-10 / +10	DG6YMK	0 / -	5	✓ Full exchange observed
10-02 17:28	60m	-13 / -16	SX2LGT	-10 / -6	5	✓ Full exchange observed
10-02 17:23	60m	-8 / -	DB3OI	+4 / -	5	✓ Full exchange observed
10-02 17:19	60m	-8 / -5	DL0NS	-14 / +2	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
151115  -3 1770  DL4YDR DL4ALI 73
151130 -11 1770  CQ DL4YDR JO32 (x3)
151300 -12 1770  PA0LAN DL4YDR +00 (x2)
151400 -18 1770  CQ DL4YDR JO32
151415  +1 2481  DL4YDR HA7UL JN97
151430 -13 1770  HA7UL DL4YDR +01
151445  +1 2480  DL4YDR HA7UL R-12
151500 -14 1770  HA7UL DL4YDR RR73
151515  +0 2480  DL4YDR HA7UL 73
151530 -14 1770  CQ DL4YDR JO32 (x3)

40m

UTC    dB Audio  Message
103730 -11 1522  DL4YDR DL7VKD/P -24 (x2)
124045 -20 1998  F4GYM/P DL4YDR R+09
090730 -12  563  GM4ZTO DL4YDR JO32
121530  -2 1880  DL4YDR SQ100PKP +14
121600  -3 1880  DL4YDR RR73; PA2WDR <...> -12
101230 -10 1055  DL4YDR 3Z100PKP -06
101645 -14  859  DL4YDR OZ1SMB JO54 (x3)
102345  -7  906  DL4YDR 9A7BB R-19 (x2)
082100 -23 2011  DL4YDR HB9TLL -15 (x2)
082400  -9 2791  DL4YDR DK2MAX RR73

80m

UTC    dB Audio  Message
172800 -18 1828  DO9FSE DL4YDR R+02 (x2)
163215 -11 1729  DG4MD DL4YDR JO32 (x3)
185115  -4  752  DL2DBI DL4YDR JO32
185130  -8  752  DL4YDR DL2DBI +06 (x2)
185415  +2  570  DO4TKW DL4YDR 73
185330 +13  922  DL4YDR SN40KZE -09
185345 -20 1403  OL900LTV DL4YDR R+19
185830  -8 1354  DL4YDR OE9HGV -12
185845 -21 1355  OE9HGV DL4YDR R+03
185900  -9 1354  DL4YDR OE9HGV RR73
185915 -22 1355  OE9HGV DL4YDR 73

10m

UTC    dB Audio  Message
200945 -17 1936  DL4YDR IK4HLQ +24
183545 -19 1692  CQ DL4YDR JO32
174600 -20 1371  DL4YDR LZ5UY RR73
162630 -21 1401  DL4YDR LZ1JZ -16 (x2)

20m

UTC    dB Audio  Message
122745  +0 2896  K4DND DL4YDR R-15 (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.

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