DK5JI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DK5JI, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-10-02.

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 80 FT8 messages attributed to DK5JI as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (78%), followed by 80 m (10%) and 40 m (10%). Several six-hour UTC windows tied for the largest share (99%), 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

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 8 60m · 62 40m · 8 20m · 2

First attributed message: 2026-07-14
Last attributed message: 2026-10-02 19:41 UTC

Observed FT8 message patterns

Attributed sample: 80 messages
Active dates: 4 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 44.

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 DK5JI in decoded directed-looking exchanges:

RI0SP · European Russia HG8LXL · Hungary YO4NF · Romania 4L7T · Georgia 4Z5KU · Israel DD4U · Fed. Rep. of Germany EG1FAP · Spain EW2RA · Belarus F4SNF · France HA5UK · Hungary HF1Z · Poland IK4CBO · 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 DK5JI

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: JO41 · 32 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-10-02 19:40 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	DK5JI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-02 19:38	60m	-10 / +9	OH3MB	+1 / +7	9	✓ Full exchange observed
10-02 19:35	60m	-7 / +6	LA4CIA	-7 / -	6	✓ Full exchange observed
10-02 19:33	60m	-9 / -	SP6TID	- / +5	3	✓ Closing fragment
10-02 19:32	60m	-7 / -16	EG1FAP	-12 / -6	5	✓ Full exchange observed
10-02 19:28	60m	-6 / -	SP1RKT	-19 / +9	3	✓ Closing observed
10-02 19:28	60m	-8 / -17	4Z5KU	-18 / -25	4	✓ Full exchange observed
10-02 19:26	60m	-8 / -1	LY8O	+2 / -	6	✓ Full exchange observed
10-02 19:24	60m	-5 / -	HA5LB	- / -17	4	Partial capture
10-02 19:22	60m	-3 / -3	IW2OHP	-4 / -2	5	✓ Full exchange observed
10-02 19:21	60m	-6 / -1	HF1Z	-5 / -	5	✓ Full exchange observed
10-02 19:19	60m	-8 / +5	DD4U	+1 / -9	5	✓ Full exchange observed
10-02 19:04	60m	-7 / -6	EW2RA	+6 / +5	7	✓ Full exchange observed
10-02 19:02	60m	-5 / 0	4L7T	-15 / -7	6	✓ Full exchange observed
10-02 19:01	60m	-5 / -	HA5UK	-1 / +6	3	✓ Closing observed
10-02 19:00	60m	-7 / -3	IK4CBO	-3 / -3	4	✓ Full exchange observed
10-02 18:58	60m	-7 / -	TF1A	- / -2	3	✓ Closing fragment
09-02 17:46	40m	-14 / -	RI1FJL	- / -	2	Partial capture
07-24 20:51	40m	-19 / -8	YO4NF	-13 / -	3	✓ Closing observed
07-24 20:50	40m	-20 / -	HG8LXL	-9 / +4	6	✓ Closing observed
07-24 20:43	80m	-8 / 0	DD7EE	+1 / -	5	✓ Full exchange observed
07-24 20:41	80m	-11 / -9	SP9UPH	+20 / -19	5	✓ Full exchange observed
07-24 20:40	80m	- / -1	DL1YEG	-9 / -	3	✓ Closing fragment
07-24 20:40	80m	- / -24	DO9BAU	+2 / -	4	✓ Closing fragment
07-24 20:38	80m	-15 / -	TF4M	-21 / -22	4	✓ Closing observed
07-24 20:31	80m	- / -	DL1YEG	-13 / -	4	Partial capture
07-24 20:22	60m	-17 / -3	OM8YZ	-13 / -5	7	✓ Full exchange observed
07-24 20:20	60m	-15 / -	F4SNF	-9 / -1	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
193515  -9 1951  LA4CIA DK5JI JO41 (x2)
193600 -10 2383  DK5JI LA4CIA +06
193615  -7 1951  LA4CIA DK5JI R+17
193630  -4 2383  DK5JI LA4CIA RR73
193645  -2 1951  LA4CIA DK5JI 73
193815  -7 1951  OH3MB DK5JI JO41 (x5)
194030  -2  890  DK5JI OH3MB +09
194045  -9 1951  OH3MB DK5JI R+07
194100  +4  891  DK5JI OH3MB RR73
194115  -6 1951  OH3MB DK5JI 73

40m

UTC    dB Audio  Message
204800 -14 2072  4X1UF DK5JI JO41
205030 -21 2071  HG8LXL DK5JI +04 (x2)
205115 -13 2072  DK5JI YO4NF -08
205115 -13 1492  DK5JI HG8LXL 73
205145 -13 2072  DK5JI YO4NF RR73
205200 -19 2071  YO4NF DK5JI 73
205200  -7 1492  DK5JI HG8LXL KN06 (x3)
205300 -23 2072  F5PBG DK5JI +04
174615 -12 1973  RI1FJL DK5JI JO41 (x3)

80m

UTC    dB Audio  Message
204030 -13 1870  DK5JI DL1YEG R-01
204100  +8 2402  DK5JI DO9BAU R-24
204100  -4 1870  DK5JI DL1YEG 73
204130 +17  761  DK5JI SP9UPH JO90
204130  +3 2402  DK5JI DO9BAU 73
204215  -9 2035  SP9UPH DK5JI -19
204230 +20 2549  DK5JI SP9UPH R-09
204245 -13 2035  SP9UPH DK5JI RR73
204300 +23 2549  DK5JI SP9UPH 73
204300  -3 1162  DK5JI DD7EE JO41
204315  -5 2035  DD7EE DK5JI +14
204330  +3 1162  DK5JI DD7EE R+00
204345 -10 2035  DD7EE DK5JI RR73
204400  +4 1162  DK5JI DD7EE 73
204800  -3 2208  DK5JI DO1NJN JO30

20m

UTC    dB Audio  Message
071345 -18 2156  RI0SP DK5JI 73
191530 -23 2057  A61DD DK5JI JO41

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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