DK9HN — 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 DK9HN, decoded by SO8OO in southeastern Poland. 156 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-20.

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 156 FT8 messages attributed to DK9HN as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 40 m (23%) and 80 m (14%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

156

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 64 80m · 22 60m · 12 40m · 36 20m · 22

First attributed message: 2026-06-08
Last attributed message: 2026-09-20 19:58 UTC

Observed FT8 message patterns

Attributed sample: 156 messages
Active dates: 17 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 82.

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 DK9HN in decoded directed-looking exchanges:

4X1UF · Israel ×2 9H1ES · Malta IK6HSM · Italy OK1DXR · Czech Republic VK7AC · Australia DL1YEG · Fed. Rep. of Germany DL6FBR · Fed. Rep. of Germany KC1UVP · United States M0KCB/P · England OS4K · Belgium SP6FME · Poland VE9LS · Canada

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 DK9HN

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 · 112 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 841 km (approx.)
Last such locator decoded: 2026-09-20 19:56 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	DK9HN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 19:55	160m	-13 / -	9H1ES	- / -19	7	✓ Closing fragment
09-19 20:10	160m	-16 / -	RI1FJZ	- / -24	2	Partial capture
09-19 19:58	160m	-14 / -	RI1FJZ	- / -	2	Partial capture
09-18 20:17	160m	-20 / -	SQ100PKP	- / +2	2	Partial capture
09-18 20:08	160m	-14 / -	UB8CQC/P	- / +8	3	Partial capture
09-17 19:51	160m	-10 / -	RI1FJZ	- / -	6	Partial capture
09-17 19:48	160m	-7 / -	RI1FJZ	- / -	2	Partial capture
09-17 19:39	160m	-9 / -	RI1FJZ	- / -	2	Partial capture
09-17 19:28	160m	-4 / -	RI1FJZ	- / -	14	Partial capture
09-17 18:55	160m	-16 / -	RI1FJZ	- / -	4	Partial capture
09-16 19:51	160m	-9 / -	RI1FJZ	- / -	10	Partial capture
09-14 18:40	160m	-5 / -5	IK6HSM	-9 / -	3	✓ Closing observed
09-14 18:31	160m	-22 / +1	OK1DXR	+2 / +10	4	✓ Full exchange observed
09-12 18:32	160m	-10 / -	GW8DX	- / -	2	Partial capture
09-10 05:50	40m	+6 / -	M0KCB/P	- / 0	2	✓ Closing fragment
09-05 05:54	60m	-8 / -4	DL5DQZ	-2 / -	4	✓ Closing observed
09-05 05:54	60m	-9 / -	OH0KCE	-13 / -7	6	✓ Closing observed
09-05 05:51	60m	-9 / -	HI3K	- / -19	3	✓ Closing fragment
09-05 05:46	60m	-6 / -	ZL4OL	- / -	2	Partial capture
08-29 21:32	80m	+8 / -	RI1FJL	- / -	16	Partial capture
08-29 21:30	80m	-1 / +1	DO9BAU	-6 / +6	14	Partial capture
08-29 21:30	80m	0 / -2	LZ2VQ	-11 / -14	4	✓ Full exchange observed
08-29 21:29	80m	+7 / -	4X1UF	-21 / -24	4	✓ Closing observed
08-09 05:44	40m	+1 / -	<...>	- / -19	7	Partial capture
08-09 05:42	40m	-14 / -	VK2ZZY	- / -	4	Partial capture
08-06 05:42	20m	-4 / -	<...>	- / -	16	Partial capture
08-02 05:43	20m	-13 / -	VK7AC	- / -	2	✓ Closing fragment
07-21 06:01	40m	-11 / -	DL6FBR	-14 / -	3	✓ Closing observed
07-21 05:59	40m	-10 / -	VE9LS	- / -	3	✓ Closing fragment
07-21 05:56	40m	-14 / 0	SP6FME	-7 / -	4	✓ Closing observed
07-21 05:55	40m	-14 / -	OS4K	- / +5	2	✓ Closing fragment
07-21 05:51	40m	-16 / -	DL1YEG	- / +2	3	✓ Closing fragment
07-21 05:47	40m	-12 / -	<...>	- / -20	3	Partial capture
07-10 12:36	20m	-20 / -	RI0SP	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
201815 -17 1992  SQ100PKP DK9HN R+02
201830 +10 1162  DK9HN RR73; EW6CB <...> +00
195115 -23 1648  RI1FJZ DK9HN JO53 (x6)
195530 -16 2076  9H1ES DK9HN JO53 (x7)

40m

UTC    dB Audio  Message
060200 -11 2553  DL6FBR DK9HN RR73
054215 -16 1454  VK2ZZY DK9HN JO53 (x4)
054445  +6 3044  <...> DK9HN R-19 (x7)
054945  -2 2681  YS/WE9G DK9HN +05
055045  +7 2738  M0KCB/P DK9HN R+00 (x2)

60m

UTC    dB Audio  Message
054630  -4 2703  ZL4OL DK9HN JO53
054900  -6  234  HI3K DK9HN JO53 (x4)
055400  -8 1032  OH0KCE DK9HN JO53 (x2)
055445  -2 1360  DK9HN DL5DQZ JO61 (x2)
055530  -8 1145  DL5DQZ DK9HN RR73
055545  -2 1360  DK9HN DL5DQZ 73
055600  -7 1145  OH0KCE DK9HN JO53 (x2)
055645 -13 1144  DK9HN OH0KCE RR73
055700  -9 1145  OH0KCE DK9HN 73

80m

UTC    dB Audio  Message
213615  +4 2833  RI1FJL DK9HN JO53
213615  -7 2402  DK9HN DO9BAU R+01
213645  +7 2833  RI1FJL DK9HN JO53
213645  -6 2402  DK9HN DO9BAU R+01
213715  +9 2833  RI1FJL DK9HN JO53
213715  -8 2402  DK9HN DO9BAU R+01
213745  +2 2833  RI1FJL DK9HN JO53
213745  -6 2402  DK9HN DO9BAU R+01
213815  +0 2832  RI1FJL DK9HN JO53 (x7)

20m

UTC    dB Audio  Message
054300  -8 1663  <...> DK9HN JO53 (x15)

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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