DL1TDS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO53

Receiver-side FT8 activity involving DL1TDS, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-08-09.

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 69 FT8 messages attributed to DL1TDS as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 80 m (22%). Most decodes (74%) fell within the six-hour window 07:00-13:00 UTC. 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

80m · 15 20m · 54

First attributed message: 2026-07-21
Last attributed message: 2026-08-09 00:38 UTC

Observed FT8 message patterns

Attributed sample: 69 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -20 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 28.

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 DL1TDS in decoded directed-looking exchanges:

9K2MP · Kuwait GJ0KYZ · Jersey HA1BF · Hungary HC2GRC · Ecuador IK4LZH · Italy IQ8BV · Italy MI0NWA · Northern Ireland OE3KJO · Austria TF5B · Iceland TK5K · Corsica WK2M · United States C31KC · Andorra

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 DL1TDS

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: JO53 · 45 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 841 km (approx.)
Last such locator decoded: 2026-08-09 00:35 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	DL1TDS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-09 00:40	80m	- / -	F5OYA/P	-18 / -	32	Partial capture
08-09 00:38	80m	- / -	DO9BAU	+2 / -	12	Partial capture
08-09 00:38	80m	- / -	UA4FKT	+5 / -	3	Partial capture
08-09 00:35	80m	+8 / -	DK0RPO	-14 / -21	10	✓ Closing observed
08-08 23:52	80m	-10 / -6	C31KC	-12 / -6	6	✓ Full exchange observed
08-08 23:33	80m	-2 / -	G8OO	- / -	2	Partial capture
07-23 12:58	20m	-13 / -	OE3KJO	- / -8	3	✓ Closing fragment
07-23 11:53	20m	-12 / -	MW3FLI	- / -	2	Partial capture
07-23 11:35	20m	- / -10	IK4LZH	+2 / -	3	✓ Closing fragment
07-23 10:54	20m	-22 / -	TF5B	- / -	2	✓ Closing fragment
07-22 18:11	20m	-9 / -17	9K2MP	-15 / -16	4	✓ Full exchange observed
07-22 08:43	20m	-10 / -	MI0NWA	- / -16	5	✓ Closing fragment
07-22 08:40	20m	-7 / -	MI0NWA	- / -	2	Partial capture
07-22 08:31	20m	-10 / -	HI8DX	- / -	4	Partial capture
07-22 08:01	20m	-18 / -	HG8LXL	- / -14	2	Partial capture
07-22 07:58	20m	- / -	HG8LXL	-20 / -	3	Partial capture
07-22 07:56	20m	-21 / -21	HA1BF	-4 / -	3	✓ Closing observed
07-22 07:43	20m	-17 / -	YV5ULO	- / -	2	Partial capture
07-21 11:15	20m	- / -5	GJ0KYZ	-5 / -	3	✓ Closing fragment
07-21 11:04	20m	-14 / -	TF5B	- / -	5	Partial capture
07-21 10:59	20m	-6 / -	IQ8BV	- / -	2	✓ Closing fragment
07-21 08:08	20m	-18 / -	DL4KER	- / -7	3	Partial capture
07-21 08:04	20m	-8 / -	GM3AND	- / -	4	Partial capture
07-21 07:48	20m	-20 / -	R9BT	- / -	3	Partial capture
07-21 07:34	20m	-2 / -12	TK5K	+8 / -	6	✓ Full exchange observed
07-19 04:24	20m	- / -18	HC2GRC	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
004930 -19  323  DL1TDS F5OYA/P JN13 (x15)

20m

UTC    dB Audio  Message
181115  -5 1079  9K2MP DL1TDS R-16 (x3)
105445 -21 1503  TF5B DL1TDS JO53 (x2)
113545  +2  463  DL1TDS IK4LZH -10 (x3)
115300 -11  856  MW3FLI DL1TDS JO53 (x3)
125100 -24 1459  IQ9SR DL1TDS JO53
125845 -17 1013  OE3KJO DL1TDS JO53 (x3)

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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