DK5IR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DK5IR, decoded by SO8OO in southeastern Poland. 1,501 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-10-04.

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 1,501 FT8 messages attributed to DK5IR as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 160 m (30%) and 40 m (7%). Most decodes (93%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -4.1 dB.

Overview

1,501

Messages attributed

UTC dates decoded

Active 15-min windows

-4.1 dB

Estimated median S/N

Bands

160m · 451 80m · 856 60m · 31 40m · 106 20m · 34 10m · 23

First attributed message: 2026-07-17
Last attributed message: 2026-10-04 20:22 UTC

Observed FT8 message patterns

Attributed sample: 1,501 messages
Active dates: 16 UTC dates
Estimated median S/N: -4.1 dB
Estimated 10th-90th percentile: -13 to +2.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 321, strong (≥ -8 dB) 1,102.

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 DK5IR in decoded directed-looking exchanges:

F1PBZ · France ×2 G8OO · England ×2 G8GDS · England ×2 UI6O · European Russia ×2 DD4U · Fed. Rep. of Germany ×2 F4MID · France ×2 RA2FU · Kaliningrad ×2 EX7CQ · Kyrgyzstan IT9ZIR · Sicily RM8L · Asiatic Russia DF0PDF · Fed. Rep. of Germany DF1TS · Fed. Rep. of Germany

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 DK5IR

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: JN49 · 1,076 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-10-04 20:21 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	DK5IR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 20:22	80m	-5 / -	YL3AUL	- / -25	2	Partial capture
10-04 20:17	80m	+2 / -	G0HSP	- / -19	2	✓ Closing fragment
10-04 20:14	80m	+4 / -	ON5AJ	- / -16	4	✓ Closing fragment
10-04 20:08	80m	+3 / 0	M0KHR	-11 / -15	5	✓ Full exchange observed
10-04 20:04	80m	+4 / -11	DK1GP	-17 / -11	3	✓ Full exchange observed
10-04 19:57	80m	0 / +6	DO6BLK	-12 / -25	4	✓ Full exchange observed
10-04 19:38	80m	+1 / -2	F4GOH	-13 / -8	4	✓ Full exchange observed
10-04 19:35	80m	+3 / -	IW3HXR	- / -3	3	✓ Closing fragment
10-04 19:28	80m	- / +1	SP5OXJ	0 / -	3	✓ Closing fragment
10-04 19:23	80m	+3 / -2	DA6PM	-21 / -8	5	✓ Full exchange observed
10-04 19:21	80m	-1 / -	IN3LTL	-15 / -1	3	✓ Closing observed
10-04 19:19	80m	-4 / -4	R1TAX	-12 / -6	4	✓ Full exchange observed
10-04 19:16	80m	-2 / -	F5RAV	-11 / -5	3	✓ Closing observed
10-04 19:11	80m	-4 / -13	RA2FU	-3 / -19	11	✓ Full exchange observed
10-04 19:05	160m	-2 / -	LZ2IP	- / -	3	Partial capture
10-02 20:20	160m	-4 / -4	DL9KM	-20 / -8	4	✓ Full exchange observed
10-02 20:12	160m	-2 / +8	DJ9HX	0 / +10	5	✓ Full exchange observed
10-02 20:06	160m	+4 / -24	DG0MAN	-18 / -25	6	✓ Full exchange observed
10-02 19:56	160m	-8 / 0	OK1AWC	-14 / -2	4	✓ Full exchange observed
10-02 19:45	160m	-8 / -18	R3YBG	-17 / -20	5	✓ Full exchange observed
10-02 19:43	160m	-14 / +5	DL0FTP	-2 / +5	4	✓ Full exchange observed
10-02 19:41	160m	-10 / -	9A60CBM	- / -	2	Partial capture
10-02 19:33	160m	-15 / -4	HB9XQH	-9 / -1	5	✓ Full exchange observed
10-02 19:29	160m	-16 / -	SP9GCZ	- / -	2	Partial capture
10-02 19:24	160m	-2 / -1	DO1BTW	+20 / -	4	✓ Closing observed
10-02 19:22	160m	-7 / -	EA1IYK	- / -19	4	Partial capture
10-02 19:10	160m	-2 / -	OZ8RZ	- / -20	2	✓ Closing fragment
10-02 19:06	160m	0 / -16	RA1N	+7 / +2	6	✓ Full exchange observed
10-02 19:03	160m	-5 / -	EB1LA	- / -16	2	✓ Closing fragment
10-02 18:56	160m	-9 / -17	LA9JKA	-21 / -11	7	✓ Full exchange observed
10-02 18:54	160m	+5 / -18	SP4LIN	+10 / -6	3	✓ Full exchange observed
10-02 18:49	160m	+2 / -13	DO1RW	-19 / -20	3	✓ Full exchange observed
10-02 18:12	160m	-7 / +7	HB9DKG	+8 / -	4	✓ Full exchange observed
10-02 18:01	160m	0 / -20	R7KCK	-10 / -16	5	✓ Full exchange observed
10-02 17:57	160m	-9 / -	ON4MGV	-14 / -6	4	✓ Full exchange observed
10-02 17:54	160m	-10 / -25	RK6OQ	-14 / -18	5	✓ Full exchange observed
10-02 17:51	160m	-11 / -16	OH5KNL	-6 / -	3	✓ Closing observed
09-29 19:52	80m	-7 / -25	RL3AW	-1 / -8	4	✓ Full exchange observed
09-29 19:38	80m	-9 / -	IZ3ZUS	- / -13	2	✓ Closing fragment
09-29 19:34	80m	-13 / -16	LY5LT	-4 / 0	6	✓ Full exchange observed
09-29 19:27	80m	-6 / -	CT2GQA	- / -5	7	Partial capture
09-29 18:59	80m	-13 / -	CT2GQA	-20 / -12	4	Partial capture
09-29 18:58	80m	-12 / -15	DA6YY	+2 / -7	3	✓ Full exchange observed
09-29 18:56	80m	-9 / -	DA6BR	-5 / +4	3	✓ Full exchange observed
09-29 18:54	80m	-11 / -5	OZ1EDR	-7 / +2	5	✓ Full exchange observed
09-29 18:41	80m	-10 / -	CT2GQA	-21 / -13	26	Partial capture
09-29 18:27	80m	-10 / -	CT2GQA	-24 / -14	13	Partial capture
09-29 18:21	80m	- / -6	G4SPE	-18 / -	3	✓ Closing fragment
09-29 18:08	80m	- / +3	SP9DWT	-6 / -	3	✓ Closing fragment
09-29 18:04	160m	-1 / 0	HA5AO	+19 / +8	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
201515  +6 2379  ON5AJ DK5IR -16 (x3)
201645  -3 2379  CQ DK5IR JN49 (x2)
201745  +4 2379  G0HSP DK5IR -19 (x2)
201845  -1 2379  CQ DK5IR JN49 (x6)
202215  -6 2379  YL3AUL DK5IR R-25 (x2)

160m

UTC    dB Audio  Message
202145  -6 1202  CQ DK5IR JN49 (x11)
190545  +2 1202  LZ2IP DK5IR JN49 (x3)
190845  +2 1202  CQ DK5IR JN49

40m

UTC    dB Audio  Message
193045  -3 2188  SQ4INW DK5IR -01 (x2)
193145  +3 2188  CQ DK5IR JN49 (x6)
193515  +0 2188  UI6O DK5IR -16 (x2)
193600 -12 1141  DK5IR UI6O R-17
193645  -9 2189  CQ DK5IR JN49
193715  -2 2188  OM8YZ DK5IR -08 (x2)
193815  -1 2189  CQ DK5IR JN49

60m

UTC    dB Audio  Message
174015  -4 1889  CQ DK5IR JN49 (x3)
174130  -9 1889  DK5IR OH2BYJ KP10
174145  -7 1889  OH2BYJ DK5IR +07
174200  -8 1889  DK5IR OH2BYJ R+06
174215  -7 1889  OH2BYJ DK5IR RR73
174230  -8 1889  DK5IR OH2BYJ 73
174230  -4 2002  DK5IR IK4CBO JN54
174245  -8 1889  IK4CBO DK5IR +21
174300  -1 2002  DK5IR IK4CBO R+15
174315  -8 1889  IK4CBO DK5IR RR73
174330  -5 2002  DK5IR IK4CBO 73
174330  -8 2551  DK5IR DF4BJ +18
174415  -8 1889  DF4BJ DK5IR R+01

10m

UTC    dB Audio  Message
111915 -15 1088  DK3TNA DK5IR -16 (x5)
112415 -17 1088  CQ DK5IR JN49
131900 -18 2031  DK5IR IT9ZIR -06 (x2)
132345 -18 1382  CQ DK5IR JN49
132515 -19 1382  YU7VD DK5IR JN49 (x2)
094930 -18 2419  DK5IR RM8L R-04 (x2)
095430 -17 1702  DK5IR EX7CQ +08 (x2)

20m

UTC    dB Audio  Message
201700  -3 1155  G8GDS DK5IR R-07 (x3)
201830  -6 1155  CQ DK5IR JN49 (x3)
202000  -9 1155  DL5DQZ DK5IR -03 (x3)
202215 -11 1156  DK5IR G8GDS -04 (x2)
202330 -11 1155  CQ DK5IR JN49 (x2)
202430  -3 1155  K1UE DK5IR -04
202630  -5 1155  CQ DK5IR JN49

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee