DH0YAH — 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 DH0YAH, decoded by SO8OO in southeastern Poland. 978 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-09-05.

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 978 FT8 messages attributed to DH0YAH as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 40 m (31%) and 60 m (14%). Most decodes (68%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.

Overview

978

Messages attributed

UTC dates decoded

102

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 89 80m · 3 60m · 137 40m · 306 20m · 438 10m · 5

First attributed message: 2026-08-20
Last attributed message: 2026-09-05 19:01 UTC

Observed FT8 message patterns

Attributed sample: 978 messages
Active dates: 14 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15.6 to +1.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 98, moderate (-15 to -9 dB) 240, strong (≥ -8 dB) 640.

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 DH0YAH in decoded directed-looking exchanges:

OM2AFQ · Slovak Republic ×2 F1PBZ · France ×2 G8GDS · England ×2 HF5A · Poland ×2 IW2MLJ · Italy ×2 ON3MOH · Belgium ×2 DF4FS · Fed. Rep. of Germany DK1MBY · Fed. Rep. of Germany DL1WZ · Fed. Rep. of Germany DL9BDR · Fed. Rep. of Germany G6PWS · England IU3RRX · Italy

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 DH0YAH

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 · 415 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,067 km (approx.)
Last such locator decoded: 2026-09-05 19:00 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	DH0YAH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 19:00	40m	+2 / -6	TA4SSK	-12 / -15	6	✓ Full exchange observed
09-05 18:58	40m	-1 / -7	RU6CH	0 / -8	4	✓ Full exchange observed
09-05 18:56	40m	0 / -	M0SFW	- / -10	2	✓ Closing fragment
09-05 18:55	40m	+3 / +3	DC7MA	-8 / -	4	✓ Closing observed
09-05 11:21	40m	- / -	DL9KM	-5 / -	7	Partial capture
09-05 11:20	40m	-14 / -	F1IQH	- / -2	2	✓ Closing fragment
09-05 09:39	40m	-16 / -	DL3BCU	- / -	2	✓ Closing fragment
09-05 08:46	40m	-23 / -	OE5ABL	-13 / -11	2	✓ Closing observed
09-05 08:43	40m	-17 / -	HB9HYO	- / -5	3	✓ Closing fragment
09-05 08:35	40m	-11 / -12	OE1AVO	-4 / -10	5	✓ Full exchange observed
09-05 08:33	40m	-12 / -	F4NKF	- / -17	2	✓ Closing fragment
09-05 08:30	40m	-7 / -	EA2EED	- / -4	6	Partial capture
09-05 08:21	40m	-4 / -	DK5HH	- / -3	2	✓ Closing fragment
09-05 08:18	40m	-12 / +3	SP5EXA	+13 / -	5	✓ Full exchange observed
09-05 08:17	40m	-10 / -	PF1B	-19 / +5	3	✓ Closing observed
09-05 08:07	40m	-14 / -	ON1DGN	- / +8	2	✓ Closing fragment
09-04 19:58	80m	-3 / -3	DM0CRACY	+2 / +9	4	Partial capture
09-03 04:55	40m	-8 / -	HK0RMR	- / -	11	Partial capture
09-03 04:52	40m	-1 / -	KC1UVP	- / -5	5	✓ Closing fragment
09-03 04:50	40m	-2 / -	PY2MTG	- / -16	4	Partial capture
09-03 04:48	40m	0 / -	K0LLT	- / -15	2	✓ Closing fragment
09-03 04:47	40m	- / -16	UR3AHB	-2 / -	2	Partial capture
09-03 04:47	40m	-2 / -	SP8BJU	- / -13	2	✓ Closing fragment
09-02 18:13	40m	+1 / -	RI1FJL	- / -25	17	Partial capture
09-02 18:08	40m	-5 / -	RI1FJL	- / -	2	Partial capture
09-02 18:01	40m	-2 / -	F4NPE	- / -5	3	✓ Closing fragment
09-02 17:58	40m	-8 / +4	DL2KBQ	0 / +10	5	✓ Full exchange observed
09-02 17:58	40m	-3 / -	DL8NEW	-8 / -	5	✓ Closing observed
09-02 17:56	40m	-7 / -	UA3ON	- / -11	3	✓ Closing fragment
09-02 17:51	40m	-1 / -	DL9TZ	- / +1	9	Partial capture
09-02 17:45	40m	-3 / -	DL9TZ	- / +1	6	Partial capture
09-02 17:33	40m	- / +1	GJ0KYZ	-13 / -	3	✓ Closing fragment
09-02 17:10	40m	-2 / -	DH4RK	- / -5	2	✓ Closing fragment
09-02 17:05	40m	-3 / -	9A4LT	- / -6	3	✓ Closing fragment
09-02 17:02	40m	-6 / -	M7GYP	- / -6	2	✓ Closing fragment
09-02 17:00	40m	-5 / -	M8GGQ	- / -12	2	✓ Closing fragment
09-02 16:55	40m	-4 / -4	HF5A	-7 / +7	5	✓ Full exchange observed
09-02 15:25	40m	-11 / +8	DF1IH	-3 / +7	5	✓ Full exchange observed
09-02 15:20	40m	-10 / +1	DG0BS	-9 / +1	7	✓ Full exchange observed
09-02 15:10	40m	-13 / -	PA0LAN	- / -8	4	✓ Closing fragment
09-02 15:05	40m	-10 / -	F5LVR	-16 / -14	6	✓ Full exchange observed
09-02 15:04	40m	-8 / -13	DL5BAW/P	-19 / -19	4	✓ Full exchange observed
09-02 08:05	40m	-15 / -	F4BAL	- / 0	2	✓ Closing fragment
08-30 22:55	40m	-10 / -	TA2EE	- / -16	2	Partial capture
08-30 22:53	40m	-12 / -	CE8WBJ	- / -20	2	✓ Closing fragment
08-30 22:46	40m	-13 / -4	RX9WM	-12 / +4	4	✓ Full exchange observed
08-30 22:37	20m	-8 / -	CE1LT	- / -5	2	✓ Closing fragment
08-30 22:23	20m	-5 / -	PP1AA	- / -14	2	✓ Closing fragment
08-30 22:08	20m	-6 / -	WD4GTY	- / -7	5	✓ Closing fragment
08-30 21:58	20m	0 / -	KB8SRX	- / -16	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
185630  -1 1496  M0SFW DH0YAH -10 (x2)
185800  -2 1496  CQ DH0YAH JO32 (x2)
185845  -1 1063  DH0YAH RU6CH -07
185900  -1 1496  RU6CH DH0YAH R-08
185915  +1 1063  DH0YAH RU6CH RR73
185930  -1 1496  RU6CH DH0YAH 73
190000  +0 1496  CQ DH0YAH JO32
190030  +2 1496  TA4SSK DH0YAH -15
190045 -14 1494  DH0YAH TA4SSK R-06
190100  +1 1496  TA4SSK DH0YAH RR73
190115  -9 1495  DH0YAH TA4SSK R-06 (x3)

80m

UTC    dB Audio  Message
120500 -18 1994  DH0YAH SP5TAE JN99
194030 -13 1577  DH0YAH DO1WGK JN49
194300 -18 2895  DH0YAH DK1GP R-09 (x2)
195800  -3  497  DM0CRACY DH0YAH JO32 (x2)
195945  +2 1893  DH0YAH DM0CRACY -03
200000  -1  497  DM0CRACY DH0YAH R+09
200045  +1 2149  DH0YAH YO9HP -09

20m

UTC    dB Audio  Message
223645  +0 1650  CQ DH0YAH JO32
223715 -10 1650  CE1LT DH0YAH R-05 (x2)
223915 -12 1650  CQ DH0YAH JO32                        a1 (x12)

60m

UTC    dB Audio  Message
043815 -11 1606  CQ DH0YAH JO32 (x2)
043915  -2 1606  XE1KK DH0YAH R-09 (x3)
044045 -13 1606  CQ DH0YAH JO32 (x3)
044200 -18  874  DH0YAH SQ2BXI JO94
044215  -8 1606  CQ DH0YAH JO32 (x6)

160m

UTC    dB Audio  Message
202730  -6 1777  OM2AFQ DH0YAH R-20 (x4)
202915 -12 1778  DH0YAH OM2AFQ 73
202930 -10 1777  OM2AFQ DH0YAH R-19
202945 -15 1704  DH0YAH OM2AFQ 73
203000  -6 1777  OM2AFQ DH0YAH R-19
203015 -16 1705  DH0YAH OM2AFQ 73
203030 -11 1777  OM2AFQ DH0YAH R-19
203045 -16 1704  DH0YAH OM2AFQ -13
203100  -8 1777  OM2AFQ DH0YAH R-19
203115 -17 1704  DH0YAH OM2AFQ 73
203130  -8 1777  OM2AFQ DH0YAH R-19 (x2)

10m

UTC    dB Audio  Message
125000 -19 1533  DH0YAH YO4NT -17
191115 -21 2103  CQ DH0YAH JO32 (x2)
195645 -18 2103  UX7QV DH0YAH +00 (x2)
151200 -16 1848  CQ DH0YAH JO32

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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