DK7UH — 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: JN39

Receiver-side FT8 activity involving DK7UH, decoded by SO8OO in southeastern Poland. 48 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-10-09.

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 48 FT8 messages attributed to DK7UH as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 20 m (35%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 31 20m · 17

First attributed message: 2026-08-06
Last attributed message: 2026-10-09 14:48 UTC

Observed FT8 message patterns

Attributed sample: 48 messages
Active dates: 4 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 17.

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 DK7UH in decoded directed-looking exchanges:

YO9PH · Romania DL7VXX · Fed. Rep. of Germany DH0ZAL · Fed. Rep. of Germany DL5WP · Fed. Rep. of Germany DO2ZZ · Fed. Rep. of Germany M9DNC · England

Most frequent locator attributed to DK7UH

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: JN39 · 37 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-10-09 14:48 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	DK7UH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-09 14:45	80m	-6 / -	M9DNC	- / -5	2	✓ Closing fragment
10-09 14:44	80m	-9 / -	G8KHF	- / -	3	Partial capture
10-09 14:42	80m	-11 / -9	DL5WP	+4 / -	4	✓ Full exchange observed
10-09 14:41	80m	-24 / +6	DO2ZZ	-13 / -	4	✓ Full exchange observed
10-09 14:35	80m	-9 / -	DH0ZAL	- / +4	2	✓ Closing fragment
09-22 17:26	80m	-10 / -	RI1FJZ	- / -	3	Partial capture
09-22 17:16	80m	-15 / -	RI1FJZ	- / -	12	Partial capture
08-26 14:19	20m	-8 / -	RI1FJL	- / -	10	Partial capture
08-26 14:12	20m	-5 / -	RI1FJL	- / -	3	Partial capture
08-11 16:04	40m	- / -2	DL9KM	-16 / -	2	Partial capture
08-11 15:56	40m	- / +1	DL7VXX	-2 / -	2	✓ Closing fragment
08-06 14:27	20m	-20 / -	YO9PH	- / -	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
144045 -18 1910  CQ DK7UH JN39
144115 -24 1910  DO2ZZ DK7UH +20
144130 -13 2497  DK7UH DO2ZZ R+06
144145 -23 1910  DO2ZZ DK7UH RR73
144200 -13 2496  DK7UH DO2ZZ 73
144230  +4  802  DK7UH DL5WP -09
144245  -6  802  DL5WP DK7UH R+20
144300  +4  802  DK7UH DL5WP RR73
144315 -16  802  DL5WP DK7UH 73
144415 -20  910  G8KHF DK7UH JN39 (x3)
144545  -7  910  M9DNC DK7UH R-05 (x2)
144815 -15 2398  UN0GY DK7UH JN39

20m

UTC    dB Audio  Message
142815 -18 1577  YO9PH DK7UH 73
140930 -12 1680  RI1FJL DK7UH JN39 (x14)

40m

UTC    dB Audio  Message
155615  +1  839  DK7UH DL7VXX +01 (x2)
160315 -11  520  DK7UH DL3KVR -04
160415 -18 1818  DK7UH DL9KM JN68 (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

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