DL4YDR — 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: JO32

Receiver-side FT8 activity involving DL4YDR, decoded by SO8OO in southeastern Poland. 3,064 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 96 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.

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 3,064 FT8 messages attributed to DL4YDR as the transmitting token by decoded message structure across 96 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (81%), followed by 80 m (11%) and 10 m (4%). Most decodes (88%) 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

3,064

Messages attributed

UTC dates decoded

448

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 339 60m · 2,483 40m · 95 20m · 22 10m · 125

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 20:00 UTC

Observed FT8 message patterns

Attributed sample: 3,064 messages
Active dates: 96 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -17 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 564, moderate (-15 to -9 dB) 1,464, strong (≥ -8 dB) 1,036.

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:

F4HSB · France ×3 OE9HGV · Austria ×3 OM5JG · Slovak Republic ×3 9A7BB · Croatia ×2 DA0OIE · Fed. Rep. of Germany ×2 DF0AWG · Fed. Rep. of Germany ×2 DK2MAX · Fed. Rep. of Germany ×2 DL6MRM · Fed. Rep. of Germany ×2 F5MYH · France ×2 HB9TLL · Switzerland ×2 OZ1SMB · Denmark ×2 4L7T · Georgia ×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 · 1,576 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,067 km (approx.)
Last such locator decoded: 2026-10-23 19:59 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
10-23 19:59	60m	-8 / -4	F4HDR	-12 / -4	5	✓ Full exchange observed
10-23 17:28	60m	-6 / 0	DM5ME	-13 / -1	4	✓ Full exchange observed
10-23 17:24	60m	-4 / +2	DL1RI	-1 / -	4	✓ Closing observed
10-23 17:09	60m	-6 / +1	PA0RRS	-2 / -	5	✓ Full exchange observed
10-23 17:05	60m	-4 / -6	G4RJS	-7 / +9	5	✓ Full exchange observed
10-23 17:01	60m	-4 / -	DB8APG	- / -2	3	✓ Closing fragment
10-23 16:59	60m	-5 / -6	SP9UOP	-3 / +5	5	✓ Full exchange observed
10-23 15:52	60m	-3 / +3	HG2DX	+5 / +9	14	✓ Full exchange observed
10-23 15:50	60m	-2 / -	GE3TXA	- / +3	3	✓ Closing fragment
10-23 15:25	60m	-8 / -	F5CUN	- / -10	2	✓ Closing fragment
10-23 15:23	60m	-10 / -	F5APQ	- / +3	2	✓ Closing fragment
10-23 15:22	60m	-7 / -	SM7MDI	- / +5	2	✓ Closing fragment
10-22 19:38	60m	+3 / -	VO1NC	- / -17	7	✓ Closing fragment
10-22 19:35	60m	-6 / -	DJ6OI	- / -	2	Partial capture
10-22 19:33	60m	+4 / -	LY5O	- / -	3	✓ Closing fragment
10-22 19:13	60m	-9 / -	SN5N	- / 0	3	✓ Closing fragment
10-22 19:11	60m	-8 / +2	OE9RWH	+2 / -	6	✓ Full exchange observed
10-22 19:10	60m	-7 / -13	HB9TLL	-7 / 0	6	✓ Full exchange observed
10-22 19:09	60m	-7 / -11	OE9HGV	-6 / -6	5	✓ Full exchange observed
10-22 19:06	60m	-11 / +9	IK3VUT	+6 / +9	5	✓ Full exchange observed
10-22 18:56	60m	-16 / -	SP7ROM	- / +1	3	✓ Closing fragment
10-22 18:39	60m	-7 / -2	F8PKC	-2 / -2	5	✓ Full exchange observed
10-22 18:18	60m	-6 / -	EA2CD	- / -16	4	Partial capture
10-22 18:15	60m	-12 / -11	EA8AE	-19 / -9	4	✓ Full exchange observed
10-22 18:14	60m	-4 / -9	PA4PA	+12 / 0	5	✓ Full exchange observed
10-22 18:11	60m	-11 / -	LA1XFA	-18 / -1	4	✓ Closing observed
10-22 18:09	60m	-7 / -1	DL3IKE	-2 / -19	5	✓ Full exchange observed
10-22 15:40	60m	-1 / -	GU0UVH	- / -2	3	✓ Closing fragment
10-22 15:38	60m	-15 / +1	DB4JW	-20 / -1	5	✓ Full exchange observed
10-22 15:20	60m	-14 / -	DL8HOT	- / +2	2	✓ Closing fragment
10-22 15:15	60m	-6 / +3	DH5ABC	+1 / -	4	✓ Full exchange observed
10-22 14:58	60m	-18 / +6	DL2ROA	-14 / +7	4	✓ Full exchange observed
10-22 14:41	60m	-14 / -	DA125RH	-2 / -	3	Partial capture
10-21 20:05	60m	+5 / 0	G4DBW	+4 / -	4	✓ Full exchange observed
10-21 19:57	60m	-4 / -19	DL9UP	+3 / -4	4	✓ Full exchange observed
10-21 19:56	60m	+5 / -	DH4PAP	- / -	2	Partial capture
10-21 19:42	60m	-11 / -	HF7X	- / 0	3	✓ Closing fragment
10-21 19:25	60m	-10 / -9	DD7EE	-6 / +2	4	✓ Full exchange observed
10-21 19:20	60m	-6 / -3	OM2CW	-19 / -2	4	✓ Full exchange observed
10-21 19:11	60m	+2 / -	GM0DYU	- / -20	4	Partial capture
10-21 17:54	60m	+4 / -5	G0JDK	-6 / +9	5	✓ Full exchange observed
10-21 17:51	60m	- / -1	DK0ND	0 / -	2	✓ Closing fragment
10-21 17:49	60m	-15 / -	ES6DO	-11 / -3	4	✓ Closing observed
10-21 15:36	60m	-12 / -9	SP2JEL	-8 / -	3	✓ Closing observed
10-21 15:32	60m	-9 / +3	DM6WAN	-9 / -	4	✓ Full exchange observed
10-21 15:29	60m	-7 / +2	G8YPE	-14 / +10	4	✓ Full exchange observed
10-20 20:01	60m	-12 / -	DL5AKF	- / -	2	Partial capture
10-20 19:06	60m	-10 / -	DJ0MAB	- / -	4	Partial capture
10-20 19:04	60m	-8 / -6	IK2SND	-3 / -1	5	✓ Full exchange observed
10-20 19:01	60m	-6 / -	EA8AE	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
171015  -4  792  DL4YDR PA0RRS RR73
171030  -7  725  PA0RRS DL4YDR 73
172445  -6  724  DL1RI DL4YDR JO32 (x2)
172600  -1  839  DL4YDR DL1RI +02 (x2)
172815  -8  724  DM5ME DL4YDR JO32
172830 -17 1156  DL4YDR DM5ME +00
172845  -5  724  DM5ME DL4YDR R-01
172900  -9 1156  DL4YDR DM5ME RR73
195900  -9  724  F4HDR DL4YDR JO32
195915 -11  883  DL4YDR F4HDR -04
195930  -9  724  F4HDR DL4YDR R-04
195945 -13  883  DL4YDR F4HDR RR73
200000  -7  724  F4HDR DL4YDR 73

40m

UTC    dB Audio  Message
101715 -15  859  DL4YDR OZ1SMB R+01 (x2)
102345  -7  906  DL4YDR 9A7BB R-19 (x2)
082100 -23 2011  DL4YDR HB9TLL -15 (x2)
082400  -9 2791  DL4YDR DK2MAX RR73
154445 -11 1801  DL4YDR DG7BBU +06 (x2)
111330  -3 2544  DL4YDR HG0NPJ -04 (x2)
113245 -17 1871  DL4YDR SQ5PTZ -07
121200 -13 1987  DL4YDR DD3ZZ -07 (x2)
121715 -11  707  F4NKT DL4YDR JO32

80m

UTC    dB Audio  Message
190830  -1 2284  DK1HSI DL4YDR R+09 (x2)
184915  -6 2649  OH6GEP DL4YDR R-06 (x2)
185015  -8 1353  DG1RTK DL4YDR JO32 (x2)
194930  -1 2382  SP9XKV DL4YDR JO32
194945  +4 2381  DL4YDR SP9XKV -11
195000  +0 2382  SP9XKV DL4YDR R-14
195015  +7 2381  DL4YDR SP9XKV RRR
195030  -8 2383  SP9XKV DL4YDR 73
195100 -14 2022  IV3NDR DL4YDR JO32
195115  -8 2023  DL4YDR IV3NDR -10 (x2)
195200 -10 2023  IV3NDR DL4YDR 73

10m

UTC    dB Audio  Message
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.

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