OM3JW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovak Republic Most frequent locator attributed to this token: JN88

Receiver-side FT8 activity involving OM3JW, decoded by SO8OO in southeastern Poland. 208 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-07.

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 208 FT8 messages attributed to OM3JW as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (55%), followed by 20 m (18%) and 60 m (16%). 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 (84%); the estimated median was +7 dB.

Overview

208

Messages attributed

UTC dates decoded

Active 15-min windows

+7 dB

Estimated median S/N

Bands

80m · 114 60m · 34 40m · 11 20m · 37 10m · 12

First attributed message: 2026-06-15
Last attributed message: 2026-09-07 17:59 UTC

Observed FT8 message patterns

Attributed sample: 208 messages
Active dates: 8 UTC dates
Estimated median S/N: +7 dB
Estimated 10th-90th percentile: -17 to +21 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 175.

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 OM3JW in decoded directed-looking exchanges:

LZ1WV · Bulgaria RU3EQ · European Russia YU7YZ · Serbia DD6ZV · Fed. Rep. of Germany DG7AK · Fed. Rep. of Germany DL6WAB · Fed. Rep. of Germany DL6ZAJ · Fed. Rep. of Germany E79D · Bosnia-Herzegovina EC5M · Spain LX1TI · Luxembourg SQ8AA · Poland

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 OM3JW

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: JN88 · 177 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 383 km (approx.)
Last such locator decoded: 2026-09-07 17:58 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	OM3JW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 17:59	60m	- / -	DF1KG	-11 / -	5	Partial capture
09-07 17:57	60m	0 / +5	E79D	+14 / -	7	✓ Full exchange observed
09-07 17:48	60m	+4 / -1	DL6ZAJ	-8 / -1	10	✓ Full exchange observed
09-07 17:48	60m	+4 / +9	LX1TI	+6 / +7	5	✓ Full exchange observed
09-07 17:47	60m	- / -	SP8V	-12 / -	2	Partial capture
09-07 17:47	60m	0 / -	DG7AK	- / -18	2	✓ Closing fragment
09-07 17:43	60m	+3 / +1	SQ8AA	+6 / -	5	✓ Full exchange observed
09-07 17:41	60m	+3 / -	EC5M	- / -11	3	✓ Closing fragment
09-07 17:39	60m	+2 / -	DL6WAB	-16 / -11	3	✓ Closing observed
09-07 17:38	60m	+2 / +9	DD6ZV	-5 / +3	21	✓ Full exchange observed
09-02 20:51	80m	+19 / -	RI1FJL	- / -	46	Partial capture
09-02 19:48	80m	+9 / -	RI1FJL	- / -	64	Partial capture
09-02 19:40	80m	+13 / -	RI1FJL	- / -15	4	Partial capture
07-21 18:42	20m	-7 / -	TU5MM	- / -	3	Partial capture
07-21 18:26	20m	+2 / -	TU5MM	- / -	10	Partial capture
07-21 18:23	20m	+8 / -5	YU7YZ	+5 / -	7	✓ Full exchange observed
07-21 18:18	20m	-8 / -	TU5MM	- / -	6	Partial capture
07-16 06:03	40m	-2 / -	5A1AL	- / -	11	Partial capture
07-14 12:47	20m	- / -	IU5TPM	-15 / -	2	Partial capture
07-13 19:07	20m	- / -12	LZ1WV	-9 / -	2	✓ Closing fragment
07-06 12:56	20m	- / -	F4HSB	-21 / -	2	Partial capture
07-04 12:09	20m	- / -	PE9JAN	0 / -	2	Partial capture
06-25 19:19	10m	-20 / -	3G0YM	- / -14	3	Partial capture
06-25 19:08	10m	-22 / -	3G0YM	- / -13	4	Partial capture
06-25 19:00	10m	-20 / -	3G0YM	- / -	2	Partial capture
06-25 16:21	10m	-22 / -	3G0YM	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
175145  -6 1436  OM3JW DL6ZAJ R-01
175200  +6 1561  DL6ZAJ OM3JW RR73
175215  -5 1436  OM3JW DL6ZAJ 73
175745  +4 1561  E79D OM3JW JN88 (x3)
175900 +15  589  OM3JW E79D +05
175900  -6 1437  OM3JW DF1KG JO31
175915  -1 1561  E79D OM3JW R+13
175930 +14  589  OM3JW E79D RR73
175930 -11 1437  OM3JW DF1KG JO31
175945  +0 1560  E79D OM3JW 73
180000 -10 1436  OM3JW DF1KG JO31 (x3)

80m

UTC    dB Audio  Message
210815 +24  955  RI1FJL OM3JW JN88 (x15)

20m

UTC    dB Audio  Message
182630  +8  556  TU5MM OM3JW JN88
182700  +8  556  YU7YZ OM3JW R+22
182715  +8 2522  OM3JW YU7YZ RR73
182730  +7  556  YU7YZ OM3JW 73
182800  -7  988  TU5MM OM3JW JN88 (x11)

40m

UTC    dB Audio  Message
060300  -2 1734  5A1AL OM3JW JN88 (x11)

10m

UTC    dB Audio  Message
162100 -22 2044  3G0YM OM3JW JN88 (x12)
144430  -5  819  OM3JW ZA5G -02

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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