OK1UOX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JO70

Receiver-side FT8 activity involving OK1UOX, decoded by SO8OO in southeastern Poland. 113 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-08 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 113 FT8 messages attributed to OK1UOX as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (72%), followed by 40 m (16%) and 20 m (12%). Most decodes (84%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -2 dB.

Overview

113

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 81 40m · 18 20m · 14

First attributed message: 2026-06-08
Last attributed message: 2026-09-07 20:07 UTC

Observed FT8 message patterns

Attributed sample: 113 messages
Active dates: 19 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -12 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 86.

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 OK1UOX in decoded directed-looking exchanges:

CR7BRV · Portugal EB3JT · Spain M7INZ · England ON4WRA/P · Belgium PB0ACU · Netherlands OM0FL · Slovak Republic 9A4ZM · Croatia DA0WWA · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany DL5FH · Fed. Rep. of Germany DL6KIX · Fed. Rep. of Germany DM5UE · 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 OK1UOX

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: JO70 · 57 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 487 km (approx.)
Last such locator decoded: 2026-09-07 20:07 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	OK1UOX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 20:05	80m	+2 / -	R1943OD	- / -	4	Partial capture
09-06 19:11	80m	-1 / -13	DO6MFD	-6 / -	3	✓ Closing observed
09-06 19:08	80m	-6 / -	OL900LTV	- / -14	2	Partial capture
09-06 19:04	80m	-1 / -18	DO1BOC	-3 / -7	5	✓ Full exchange observed
09-04 22:13	80m	-7 / -10	OE1KSG	-3 / -4	5	✓ Full exchange observed
09-03 19:01	80m	+4 / -2	DM5UE	+4 / +9	5	✓ Full exchange observed
09-03 17:51	40m	-14 / -18	II7MGBA	-10 / -3	4	Partial capture
08-29 18:02	20m	- / -5	EB3JT	+21 / -	4	✓ Closing fragment
07-31 19:29	20m	- / -	F4BJN	-16 / -	4	Partial capture
07-30 12:16	20m	- / -20	PB0ACU	-9 / -	5	✓ Closing fragment
07-30 10:46	20m	- / -19	SV5BYP	-9 / -	7	Partial capture
07-28 19:19	20m	- / -	PE1NPS	0 / -	3	Partial capture
07-28 19:16	20m	- / +5	M7INZ	-6 / -	3	✓ Closing fragment
07-26 20:49	40m	-10 / -	<...>	- / 0	6	Partial capture
07-24 19:26	80m	-5 / -	DL1UDO	-12 / -	2	✓ Closing observed
07-24 19:22	80m	-4 / +2	DL6KIX	+6 / -	9	✓ Full exchange observed
07-24 19:21	80m	-2 / -5	DL1UDO	-6 / +7	10	✓ Full exchange observed
07-24 17:23	20m	-8 / -	9J2FI	- / -	9	Partial capture
07-22 20:02	80m	0 / -	OE5EYM	-4 / -9	5	Partial capture
07-22 20:01	80m	-1 / -17	DO2XYZ	-10 / -6	6	✓ Full exchange observed
07-22 19:59	80m	-4 / -11	DL5FH	+9 / +8	5	✓ Full exchange observed
07-22 19:58	80m	-6 / -8	ON4AZR	+3 / -	2	✓ Closing observed
07-22 19:56	80m	-2 / -10	YO4NT	+8 / +5	4	✓ Full exchange observed
07-22 19:49	20m	- / +1	CR7BRV	-1 / -	2	✓ Closing fragment
07-13 18:51	40m	-12 / -	PD3LWD	- / -3	2	Partial capture
07-13 18:33	40m	-10 / -19	HA8RC	-21 / -12	3	Partial capture
07-04 04:38	80m	+1 / -	SQ2JSE	- / -9	4	Partial capture
07-04 04:36	80m	+1 / +6	DA0WWA	-6 / -	5	✓ Full exchange observed
06-26 19:48	80m	-2 / -1	DL/AD2LX	-10 / -	3	Partial capture
06-26 19:46	80m	-1 / -	DL800PCH	- / +3	3	Partial capture
06-26 19:45	80m	-2 / -3	9A4ZM	+20 / -	6	✓ Full exchange observed
06-26 19:44	80m	+2 / -9	SQ9LOJ	+14 / -	3	✓ 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
190400  -4  613  DO1BOC OK1UOX JO70
190415  -6  614  OK1UOX DO1BOC -18
190430  +0  613  DO1BOC OK1UOX R-07
190445  +0  614  OK1UOX DO1BOC RR73
190500  +2  613  DO1BOC OK1UOX 73
190800  -4  880  OL900LTV OK1UOX JO70 (x2)
191115  -5 1204  OK1UOX DO6MFD -13 (x2)
191200  -1 1204  DO6MFD OK1UOX 73
191345  -2 2395  HA5OV OK1UOX JO70
200515  +1 1143  R1943OD OK1UOX JO70 (x4)

40m

UTC    dB Audio  Message
204930 -11  727  <...> OK1UOX JO70 (x6)
205430 -12  728  DF1SD OK1UOX JO70
054830 -24 1583  R3YBG OK1UOX JO70
161600 -18 1643  OM0FL OK1UOX JO70
161945 -13 1643  OK1UOX OM0FL RR73
171745  -8 1467  II7MGBA OK1UOX JO70 (x2)
175130 -10 1468  OK1UOX II7MGBA -18 (x2)
175215 -13 1467  II7MGBA OK1UOX R-03

20m

UTC    dB Audio  Message
104900  -6 2412  OK1UOX SV5BYP R-19 (x2)
121645 -11  612  OK1UOX PB0ACU -20 (x5)
192915 -15 1240  OK1UOX F4BJN JN25 (x4)
180230 +21  357  OK1UOX EB3JT JN01 (x4)

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