DJ7UC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DJ7UC, decoded by SO8OO in southeastern Poland. 293 FT8 messages attributed to this token as transmitter, on 160m, 80m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-03.

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 293 FT8 messages attributed to DJ7UC as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 10 m (3%) and 160 m (2%). Most decodes (73%) fell within the six-hour window 05:00-11:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -3 dB.

Overview

293

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 6 80m · 4 20m · 273 10m · 10

First attributed message: 2026-06-11
Last attributed message: 2026-09-03 23:24 UTC

Observed FT8 message patterns

Attributed sample: 293 messages
Active dates: 26 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -14 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 217.

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 DJ7UC in decoded directed-looking exchanges:

RI0SP · European Russia ×3 PY2FUI · Brazil RA3AHN · European Russia RK3ZB · European Russia RO3ZR · European Russia UA1AIR · European Russia UA3UBT · European Russia 7Q5MLV · Malawi 9H4CM · Malta A91LD · Bahrain HC2GRC · Ecuador HC7AE · Ecuador

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 DJ7UC

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: JO62 · 262 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-09-03 23:24 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	DJ7UC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-03 23:20	160m	-17 / -	RI1FJL	- / -	5	Partial capture
09-03 23:12	80m	- / +6	DK7ZT	+3 / -	3	Partial capture
09-03 23:12	80m	- / -	DO9BAU	+11 / -	11	Partial capture
09-03 23:09	80m	+6 / -	RI1FJL	- / -10	4	✓ Closing fragment
08-20 19:09	20m	-9 / -	D2IM	- / -	2	Partial capture
08-20 18:59	20m	-5 / -	D2IM	- / -	9	Partial capture
08-20 18:51	20m	-2 / -	D2IM	- / -	5	Partial capture
08-19 14:32	10m	- / -11	PY2FUI	-20 / -	2	✓ Closing fragment
08-16 17:09	20m	+3 / +3	<...>	-5 / -8	4	Partial capture
08-06 06:26	20m	-6 / -	<...>	- / -	2	Partial capture
07-29 13:30	20m	+1 / -	RU3DOK/P	- / -	3	Partial capture
07-29 13:28	20m	+6 / -	R6ZAJ	- / -	2	Partial capture
07-29 13:24	20m	-6 / -	RZ3Z/P	- / -	4	Partial capture
07-27 05:33	20m	-9 / -	YV6BXN	- / -	7	Partial capture
07-24 16:04	10m	-19 / -	RA3AHN	- / -	2	✓ Closing fragment
07-24 06:53	20m	- / -14	HI8UD	-18 / -	2	✓ Closing fragment
07-24 06:42	20m	- / -8	VK3YP	-21 / -	2	✓ Closing fragment
07-23 10:53	10m	- / -11	UA1AIR	-10 / -	2	✓ Closing fragment
07-22 15:20	20m	-1 / -21	RA0UB	-17 / -5	6	✓ Full exchange observed
07-20 06:42	20m	-10 / -	HC7AE	- / -	14	✓ Closing fragment
07-20 06:39	20m	-14 / -	HC7AE	- / -	2	Partial capture
07-20 06:31	20m	- / -1	TK5K	-6 / -	2	✓ Closing fragment
07-19 13:53	10m	- / -15	RK3ZB	-24 / -	2	✓ Closing fragment
07-19 09:11	10m	-11 / -	<...>	- / -	2	Partial capture
07-19 08:53	10m	+4 / -	RA6AR	- / -	3	Partial capture
07-19 08:03	10m	- / -17	RO3ZR	-2 / -	2	✓ Closing fragment
07-19 07:49	10m	- / -17	UA3YFL	-19 / -	2	Partial capture
07-18 16:23	20m	-19 / -	3W9A	- / -	4	Partial capture
07-18 16:12	20m	-7 / -	XV9T	- / -	7	Partial capture
07-18 06:41	20m	- / -8	HI8R	-11 / -	2	✓ Closing fragment
07-16 08:25	20m	-5 / -	KF0YOB	- / -18	3	✓ Closing fragment
07-16 07:49	20m	-2 / -	RN3DDW/P	- / -	2	Partial capture
07-14 09:07	20m	-13 / -	RI0SP	- / -8	3	Partial capture
07-13 06:46	20m	+1 / -	<...>	- / -	25	Partial capture
07-13 06:17	20m	-1 / -	<...>	- / -	40	Partial capture
07-12 17:14	20m	-10 / -	RI0SP	- / -6	2	Partial capture
07-11 10:49	20m	-6 / -	RI0SP	- / -	2	✓ Closing fragment
07-11 05:56	20m	-9 / -	9H4CM	- / -10	6	✓ Closing fragment
07-11 05:51	20m	+1 / -	TI5RR	- / -	6	Partial capture
07-10 08:16	20m	-19 / -	UB6OCD	- / -18	8	Partial capture
07-08 15:41	20m	-6 / -	RI0SP	- / -	4	✓ Closing fragment
07-06 09:17	10m	- / -21	<...>	-12 / -	2	Partial capture
07-03 05:53	20m	- / -12	K2K	-15 / -	2	✓ Closing fragment
06-30 19:18	20m	- / -10	EC3A	-12 / -	2	Partial capture
06-30 19:18	20m	- / -4	R4FDW	-12 / -	5	Partial capture
06-29 07:03	20m	0 / -	N9W	-19 / -8	4	✓ Closing observed
06-29 07:00	20m	-8 / -	KF0YOB	- / -	2	Partial capture
06-25 16:53	20m	-6 / -	R9CS/P	- / -15	4	✓ Closing fragment
06-25 10:49	20m	-2 / -	RI0SP	- / -16	3	✓ Closing fragment
06-25 06:46	20m	-10 / -	KF0YOB	- / -	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
231445  -1 2094  RI1FJL DJ7UC JO62 (x6)

80m

UTC    dB Audio  Message
231045  +6  783  RI1FJL DJ7UC 73
231200 +15 2402  DJ7UC DO9BAU JO62
231200  -1 1114  DJ7UC DK7ZT +06
231230  +9 2402  DJ7UC DO9BAU JO62
231230  +5 1114  DJ7UC DK7ZT +06
231300  +7 2402  DJ7UC DO9BAU JO62
231300  +6 1114  DJ7UC DK7ZT +06
231330  +5 2402  DJ7UC DO9BAU JO62 (x8)

20m

UTC    dB Audio  Message
185415  +4 2376  D2IM DJ7UC JO62 (x14)
060200  -3 2804  DJ7UC XQ1KK RR73

10m

UTC    dB Audio  Message
085300  +4 3043  RA6AR DJ7UC JO62 (x3)
091145  -9 3097  <...> DJ7UC JO62 (x2)
092700  -8  768  R2ZJJ DJ7UC R-25
135300 -23 1834  DJ7UC RK3ZB -15 (x2)
064045 -17 2413  DJ7UC UA3UBT RR73
105315 -14 1102  DJ7UC UA1AIR -11 (x2)
160445 -16 1831  RA3AHN DJ7UC JO62 (x2)
143215 -17 1501  DJ7UC PY2FUI -11 (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.

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