DA1TH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO64

Receiver-side FT8 activity involving DA1TH, decoded by SO8OO in southeastern Poland. 124 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-17.

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 124 FT8 messages attributed to DA1TH as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 80 m (28%) and 20 m (14%). Several six-hour UTC windows tied for the largest share (81%), 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

124

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 35 40m · 72 20m · 17

First attributed message: 2026-06-07
Last attributed message: 2026-09-17 19:37 UTC

Observed FT8 message patterns

Attributed sample: 124 messages
Active dates: 10 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 48.

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 DA1TH in decoded directed-looking exchanges:

EA3AKY · Spain IK2SND · Italy IN3XUG · Italy IW1PPB · Italy SV2CLJ · Greece CR7BRV · Portugal F4HTA · France HA1BF · Hungary OS4K · Belgium PD9FLX · Netherlands R3KCW · European Russia R3NBI · European Russia

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 DA1TH

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: JO64 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 784 km (approx.)
Last such locator decoded: 2026-09-17 19:37 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	DA1TH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 19:35	40m	-8 / -	IU4COO	-1 / -4	5	✓ Closing observed
09-17 19:26	40m	-2 / -	UT2SQ	- / +1	2	✓ Closing fragment
09-17 19:24	40m	-6 / -	SP9JP	- / +5	2	✓ Closing fragment
09-17 19:24	40m	-3 / -	OH7BDI	-12 / -	2	✓ Closing observed
09-17 19:22	40m	-6 / -	DM4ZPJ	+7 / +5	3	✓ Closing observed
09-17 19:20	40m	-7 / -	SP6AXW	- / +4	2	✓ Closing fragment
09-17 19:19	40m	-6 / +10	OE8PIT	0 / +3	4	✓ Full exchange observed
09-17 19:17	40m	-2 / -2	ON1DGN	-12 / -1	4	✓ Full exchange observed
09-17 19:16	40m	-5 / -12	2E0UMK	-8 / -5	5	✓ Full exchange observed
08-30 10:16	20m	- / -19	R3NBI	-2 / -	3	✓ Closing fragment
08-30 10:13	20m	- / -6	HA1BF	-19 / -	2	✓ Closing fragment
08-30 10:02	20m	-10 / -	F4HTA	-1 / -12	3	✓ Closing observed
08-30 09:59	20m	-12 / -	F5SFT	- / -	2	Partial capture
08-30 09:57	20m	-12 / -	LZ1DIO	- / -7	2	Partial capture
08-27 13:21	20m	- / -19	PD9FLX	-4 / -	3	✓ Closing fragment
08-27 13:17	20m	- / -6	OS4K	-18 / -	2	✓ Closing fragment
08-27 13:15	20m	- / -24	R3KCW	+14 / -	3	✓ Closing fragment
08-25 19:17	40m	- / -	DB9JH	-3 / -	3	Partial capture
08-23 15:29	40m	- / -7	SP7AAO	-10 / -	2	✓ Closing fragment
08-23 15:21	40m	-18 / -	GM3AND	- / -	2	Partial capture
08-23 15:16	40m	- / -6	OZ9FF	-8 / -	2	✓ Closing fragment
08-23 15:03	40m	- / +4	DL9MY	-6 / -	2	✓ Closing fragment
08-22 12:23	20m	-17 / -	9A4AA	- / -	3	Partial capture
08-22 12:18	20m	-16 / -	G8IXM	- / -13	3	Partial capture
08-22 12:16	20m	- / -	DL3RAJ	-2 / -	2	Partial capture
08-22 11:55	10m	- / -17	IW1PPB	-12 / -	2	✓ Closing fragment
08-22 09:49	10m	- / -	SV2CLJ	-8 / -	2	✓ Closing fragment
08-22 09:39	10m	- / +7	IN3XUG	-6 / -	3	✓ Closing fragment
08-22 09:38	10m	- / -	IK2SND	-13 / -	2	✓ Closing fragment
08-22 09:33	10m	- / -6	EA3AKY	-10 / -	2	✓ Closing fragment
08-08 20:12	80m	-16 / -	DP6SEVEN	- / -1	2	Partial capture
08-08 20:08	80m	-17 / -	RV9FF	0 / -2	6	✓ Closing observed
08-08 20:04	80m	-20 / -	OL900LTV	- / -5	2	Partial capture
08-08 20:02	80m	-7 / -13	RC6OD	+10 / +8	4	✓ Full exchange observed
08-08 19:59	80m	-12 / -16	EW8AAC	-3 / +7	6	✓ Full exchange observed
08-08 19:56	80m	-12 / -	UA3IHJ	-4 / +6	7	Partial capture
08-08 19:53	80m	-6 / -5	ON6CQ	-17 / -6	4	✓ Full exchange observed
08-08 19:51	80m	-8 / -13	HF5A	+11 / -4	5	✓ Full exchange observed
08-08 19:44	80m	- / -	SM7WVZ	-13 / -	3	✓ Closing fragment
08-08 19:41	80m	- / -7	DO5HOK	0 / -	2	✓ Closing fragment
08-08 16:11	20m	- / -13	CR7BRV	-9 / -	5	✓ Closing fragment
08-05 14:22	20m	- / -25	IQ4JO	0 / -	4	Partial capture
08-05 14:22	20m	- / -	RA6OY	-4 / -	5	Partial capture
07-26 18:37	20m	- / -16	RK3AQ	-15 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192300  +7  542  DA1TH DM4ZPJ 73
192415  -3  541  OH7BDI DA1TH RR73
192430 -12  542  DA1TH OH7BDI 73
192445  -5  541  SP9JP DA1TH +05 (x2)
192545  -3  541  CQ DA1TH JO64
192615  -2  541  UT2SQ DA1TH +01 (x2)
193345  -2 2228  UB3ANV DA1TH R-15
193500  -7 2229  IU4COO DA1TH JO64 (x3)
193645  -1 1553  DA1TH IU4COO RRR
193700  -8 2229  IU4COO DA1TH 73
193730  -2 2229  CQ DA1TH JO64

20m

UTC    dB Audio  Message
132100  -4 2083  DA1TH PD9FLX JO22 (x3)
095745 -11 2167  LZ1DIO DA1TH JO64 (x2)
095915 -14 2167  F5SFT DA1TH JO64 (x2)
100200 -16 2167  F4HTA DA1TH JO64 (x2)
100245  -1 1960  DA1TH F4HTA RR73
101300 -20 1346  DA1TH HA1BF -06 (x2)
101630  +2 1832  DA1TH R3NBI LO07 (x3)

10m

UTC    dB Audio  Message
092700 -12 2233  DA1TH EA3AKY -14 (x3)
093630  -3 2805  DA1TH OZ1SMB JO54
093830 -15 2341  DA1TH IK2SND R+14 (x2)
093930  -7 1622  DA1TH IN3XUG JN55 (x3)
094900  -8  568  DA1TH SV2CLJ RR73 (x2)
115530 -11  771  DA1TH IW1PPB -17 (x2)
115915 -20 1789  DA1TH F5RRS JN36

80m

UTC    dB Audio  Message
200315  +9 1074  DA1TH RC6OD RR73
200415  +2 2231  DA1TH OH3OJ/1 -13
200430 -24 1160  OL900LTV DA1TH R-05 (x2)
200630  -8 1161  RV9CD DA1TH JO64
200815 -18 1852  RV9FF DA1TH JO64 (x5)
201030  +0 2030  DA1TH RV9FF RR73
201215 -17 1852  DP6SEVEN DA1TH JO64
201230  -6 2117  DA1TH YO1BRANCUSI -14
201245 -15 1852  DP6SEVEN DA1TH R-01
201515 -13 1852  YO1BRANCUSI DA1TH JO64

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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