OE3KJO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Austria Most frequent locator attributed to this token: JN78

Receiver-side FT8 activity involving OE3KJO, decoded by SO8OO in southeastern Poland. 2,031 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-05.

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 2,031 FT8 messages attributed to OE3KJO as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 20 m (28%) and 60 m (12%). The busiest six-hour window was 06:00-12:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.

Overview

2,031

Messages attributed

UTC dates decoded

178

Active 15-min windows

-7.2 dB

Estimated median S/N

Bands

160m · 173 80m · 183 60m · 249 40m · 862 20m · 564

First attributed message: 2026-06-07
Last attributed message: 2026-10-05 07:17 UTC

Observed FT8 message patterns

Attributed sample: 2,031 messages
Active dates: 44 UTC dates
Estimated median S/N: -7.2 dB
Estimated 10th-90th percentile: -19 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 437, moderate (-15 to -9 dB) 494, strong (≥ -8 dB) 1,100.

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 OE3KJO in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×3 F1PBZ · France ×3 F4FRC · France ×2 OK9DMR · Czech Republic ×2 F4HSB · France ×2 IK4LZH · Italy ×2 PA1PA · Netherlands ×2 SP9NSQ · Poland ×2 TA2ED · Asiatic Turkey ×2 9A7BB · Croatia ×2 DF5DY · Fed. Rep. of Germany ×2 ON6CQ · Belgium ×2

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 OE3KJO

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: JN78 · 1,237 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 518 km (approx.)
Last such locator decoded: 2026-10-05 07:17 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	OE3KJO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 07:13	80m	+3 / -	DO1HFS	- / -6	2	✓ Closing fragment
10-05 07:11	80m	+2 / -	DH1DAC	-10 / -3	4	✓ Closing observed
10-05 07:09	80m	+4 / -13	F4LMS	-22 / -10	4	✓ Full exchange observed
10-05 07:08	80m	+4 / -	DH5NC	-21 / +7	3	✓ Closing observed
10-05 07:05	40m	+2 / -	DL4DP	- / +2	2	Partial capture
10-05 07:03	40m	0 / -	G3TKT	-22 / +3	3	✓ Closing observed
10-02 12:02	40m	-18 / -	F1IQH	- / -19	3	Partial capture
10-02 11:44	40m	-19 / -	IK1MJK	- / -13	2	Partial capture
10-02 11:43	40m	-22 / -	IN3IZQ	- / +7	2	✓ Closing fragment
10-01 19:29	160m	-16 / -	UR5EEW	- / -14	2	Partial capture
10-01 19:19	160m	-8 / -	JA6MWW	- / -18	3	✓ Closing fragment
10-01 19:18	160m	-11 / -	HF5A	- / -2	2	✓ Closing fragment
10-01 19:17	160m	-6 / -	IZ0RPS	- / -4	2	✓ Closing fragment
10-01 19:16	160m	-7 / -1	YU0X	-2 / -	5	✓ Full exchange observed
10-01 19:12	160m	-12 / -	JA6MWW	- / -	2	Partial capture
10-01 18:36	160m	-18 / -	LA9JKA	- / -	2	✓ Closing fragment
10-01 18:24	160m	-19 / -7	YL3HI	-6 / -11	4	✓ Full exchange observed
10-01 18:20	160m	-21 / -2	E73S	-13 / -	3	✓ Full exchange observed
10-01 18:17	160m	-14 / -	DC1ASE	- / -7	2	✓ Closing fragment
10-01 18:16	160m	-16 / -	RA6YDX	- / -10	2	Partial capture
10-01 18:14	160m	-12 / -	LZ1ST	- / -2	2	✓ Closing fragment
10-01 18:13	160m	-20 / -	PE2AE	- / -13	2	✓ Closing fragment
10-01 18:11	160m	-16 / -	DL9KM	- / -3	2	✓ Closing fragment
10-01 18:09	160m	-19 / -	ON4MGV	- / -15	2	✓ Closing fragment
09-30 18:30	60m	-3 / +1	SP3JHZ	-6 / +7	5	✓ Full exchange observed
09-30 18:29	60m	-6 / -1	DK0RPO	-10 / -4	5	✓ Full exchange observed
09-30 18:27	60m	-6 / -9	SV1AIQ	+10 / -	6	✓ Full exchange observed
09-30 18:26	60m	+2 / -9	M0XXJ	-19 / -8	5	✓ Full exchange observed
09-30 18:17	80m	-23 / -	YT2ZE	-5 / -	2	✓ Closing observed
09-30 10:38	40m	0 / -	DD5DD	- / -19	2	✓ Closing fragment
09-30 10:19	40m	-1 / -	9A7BB	- / -	2	✓ Closing fragment
09-30 10:16	40m	+1 / -	DF3SP	- / -13	5	✓ Closing fragment
09-30 10:10	40m	0 / -	SP5TAE	- / +3	4	✓ Closing fragment
09-30 10:01	40m	-1 / -	DL1BIB	- / -9	2	✓ Closing fragment
09-30 09:59	40m	-2 / -	PD4HT	- / -4	2	✓ Closing fragment
09-30 09:57	40m	-6 / -	IV3DSG	- / -	2	✓ Closing fragment
09-30 09:51	40m	-2 / 0	HA0GZ	-4 / +7	6	✓ Full exchange observed
09-30 09:50	40m	-3 / -	F4NKF	- / -10	4	✓ Closing fragment
09-30 09:47	40m	0 / +8	LZ3CB	-1 / -	5	✓ Full exchange observed
09-29 18:56	160m	+4 / -10	OM3TWM	+16 / -	5	✓ Full exchange observed
09-29 18:52	160m	+4 / -	DH7SB	-2 / +2	5	Partial capture
09-29 18:52	160m	- / -	YO5USA	-6 / -	4	Partial capture
09-29 18:50	160m	-2 / -21	R3ZG	-13 / -6	4	✓ Full exchange observed
09-29 18:49	160m	0 / -14	R3ZMM	-9 / -12	5	✓ Full exchange observed
09-29 18:47	160m	+4 / -	SV2RLS	- / -9	3	Partial capture
09-29 18:45	160m	+6 / -	SV1EKI	-14 / -17	3	✓ Closing observed
09-29 18:42	160m	-4 / -8	SP1MGM	+12 / -	5	✓ Full exchange observed
09-29 18:40	160m	+2 / -4	DO1SWC	-22 / -1	3	✓ Full exchange observed
09-29 18:38	160m	+5 / -3	HB9GNH	-5 / -	4	✓ Closing observed
09-29 18:38	160m	+7 / -15	SV1QEW	-11 / -1	8	✓ 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
071145  -9  989  OE3KJO DH1DAC JO31
071200  +3 1639  DH1DAC OE3KJO -03 (x2)
071245 -10  988  OE3KJO DH1DAC 73
071300  +4 1639  DO1HFS OE3KJO -06 (x2)
071400  +2 1639  RO2E/M OE3KJO -02
071415 -17 1452  OE3KJO IQ9SZ/7 R-09
071500  +4 1639  CQ OE3KJO JN78 (x6)
071945 -15 2131  OE3KJO SP3AKK JO82

40m

UTC    dB Audio  Message
120245 -18 1709  F1IQH OE3KJO -19 (x3)
120915 -16 1572  CQ OE3KJO JN78
042915  -9 1567  HK3AQJ OE3KJO JN78
043100  +3 1567  WE0D OE3KJO -07
043130  +3 1567  CQ OE3KJO JN78
070100  +3 1673  YV5YAM OE3KJO JN78
070130  +1 1673  CQ OE3KJO JN78 (x2)
070300  +1 1673  G3TKT OE3KJO +03 (x2)
070345 -22 1673  OE3KJO G3TKT 73
070530  +2 1673  DL4DP OE3KJO +02 (x2)

160m

UTC    dB Audio  Message
191730  -6 1685  IZ0RPS OE3KJO RR73
191800  -9 1685  YU0X OE3KJO RR73
191830 -11 1685  HF5A OE3KJO -02 (x2)
191930  -8 1685  JA6MWW OE3KJO -18 (x3)
192130 -14 1685  CQ OE3KJO JN78
192145 -17 1685  JF8QNF OE3KJO JN78
192430 -10 1675  UN0GY OE3KJO JN78
192600  -8 1675  JF8QNF OE3KJO -17 (x2)
192900 -17 1675  CQ OE3KJO JN78
192930 -13 1610  UR5EEW OE3KJO -14 (x2)

60m

UTC    dB Audio  Message
182915 -12 1995  DK0RPO OE3KJO -04
182930 -12 2288  OE3KJO DK0RPO R-01
182945  +1 1995  DK0RPO OE3KJO RR73
183000  -5 2134  OE3KJO SP3JHZ JO71
183000  -8 2288  OE3KJO DK0RPO 73
183015  -2 1995  SP3JHZ OE3KJO +07
183030  -9 2134  OE3KJO SP3JHZ R+01
183045  -4 1995  SP3JHZ OE3KJO RR73
183100  -3 2134  OE3KJO SP3JHZ RR73
183115  -4 1995  CQ OE3KJO JN78 (x6)

20m

UTC    dB Audio  Message
184400 -13 1937  OE3KJO TA2ED -15 (x2)
175915  +2 1718  CQ OE3KJO JN78 (x2)
180030  -2 1718  UR5WCS OE3KJO +12 (x3)
180200  +8 1718  CQ OE3KJO JN78 (x2)
180300  -1 1718  N1API OE3KJO JN78 (x2)
180400  +0 1718  BA5AN OE3KJO -12
173915  -1 1980  OE3KJO TA2ED -08 (x2)
174730  -4 1897  CQ OE3KJO JN78

10m

UTC    dB Audio  Message
142130 -21 2020  OE3KJO YO9PH +01 (x3)
135730 -12  775  OE3KJO DN9DKN 73
143645 -15 2178  OE3KJO ON5RZ JO21 (x5)
145000 -10 1038  OE3KJO UR1CCT KN69 (x3)

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