OK1XV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1XV, decoded by SO8OO in southeastern Poland. 2,463 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 81 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-12.

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 2,463 FT8 messages attributed to OK1XV as the transmitting token by decoded message structure across 81 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 160 m (25%) and 40 m (15%). Most decodes (64%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +6.9 dB.

Overview

2,463

Messages attributed

UTC dates decoded

311

Active 15-min windows

+6.9 dB

Estimated median S/N

Bands

160m · 616 80m · 1,452 40m · 373 20m · 11 10m · 11

First attributed message: 2026-06-07
Last attributed message: 2026-10-12 04:39 UTC

Observed FT8 message patterns

Attributed sample: 2,463 messages
Active dates: 81 UTC dates
Estimated median S/N: +6.9 dB
Estimated 10th-90th percentile: -8 to +15.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 183, strong (≥ -8 dB) 2,235.

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 OK1XV in decoded directed-looking exchanges:

SP5DFK · Poland ×3 8S2A · Sweden ×2 G8OO · England ×2 HC1BI · Ecuador ×2 K4SO · United States ×2 KO4PRE · United States ×2 OI5AY · Finland ×2 RI1FJZ · Franz Josef Land ×2 SP5GW · Poland ×2 YL3HI · Latvia ×2 OA4ENG · Peru ×2 TN8GD · Republic of the Congo ×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 OK1XV

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: JN79 · 1,673 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 491 km (approx.)
Last such locator decoded: 2026-10-12 04:39 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	OK1XV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-12 04:35	80m	+14 / -	N8HRZ	- / -	5	Partial capture
10-12 04:32	80m	+13 / -	W4PSK	- / -5	3	✓ Closing fragment
10-12 03:36	160m	+7 / -	HC1BI	- / -16	10	✓ Closing fragment
10-11 12:09	40m	-2 / -	RU0LL/P	- / +10	2	Partial capture
10-11 04:33	160m	+3 / -	KB3VQC	- / -	5	Partial capture
10-11 04:26	160m	0 / -	KB3VQC	- / -	2	Partial capture
10-10 04:31	80m	+6 / -	KY2J	- / -13	4	Partial capture
10-09 22:39	80m	+12 / -	9V1YC	- / -	4	Partial capture
10-09 22:14	160m	-5 / -	CT2GQA	- / -	2	Partial capture
10-09 22:12	160m	-2 / -2	PI4DX	+8 / -	4	✓ Full exchange observed
10-09 22:06	160m	+6 / -6	OK9DMR	-16 / -15	6	✓ Full exchange observed
10-09 22:05	160m	-6 / -	CT2GQA	- / -	3	Partial capture
10-09 22:01	160m	+4 / +3	R3ZP	-14 / -3	7	✓ Full exchange observed
10-09 22:00	160m	+4 / -	EA8AR	- / -17	3	✓ Closing fragment
10-09 21:54	160m	+7 / -	UN0GY	- / -20	8	✓ Closing fragment
10-09 16:31	80m	+16 / -	JM1JZN	- / -	5	Partial capture
10-09 04:58	40m	- / -	OH3OJ	-1 / -	2	✓ Closing fragment
10-09 04:55	40m	- / -6	OH3OJ	+2 / -	2	Partial capture
10-09 04:28	80m	+11 / -	XE2X	- / -19	7	Partial capture
10-09 04:19	160m	-1 / -9	KA1R	-10 / -	3	✓ Closing observed
10-08 04:34	80m	+14 / -	KO3ZDE	- / -	6	Partial capture
10-08 04:01	80m	+8 / -	K5XI	- / -	6	Partial capture
10-08 02:01	160m	+2 / +5	LY3BRA	+4 / -	5	✓ Full exchange observed
10-08 01:41	80m	+15 / -	KZ4ZZ	- / -	2	Partial capture
10-08 01:39	80m	+15 / -	SE3X	-16 / -5	4	✓ Closing observed
10-08 01:33	80m	+16 / -	UN0GY	- / -	2	Partial capture
10-08 01:26	80m	+14 / -16	RK3DSW	-14 / -21	5	✓ Full exchange observed
10-08 01:25	80m	+12 / -	8S2A	- / -9	2	✓ Closing fragment
10-08 01:25	80m	+16 / -1	G3TKT	-16 / -13	5	✓ Full exchange observed
10-08 01:24	80m	+13 / -	PY6HD	-19 / -17	3	✓ Closing observed
10-07 04:34	80m	+9 / -	KA9EKJ	- / -	4	Partial capture
10-07 04:29	80m	+4 / -	N8F	- / -18	7	✓ Closing fragment
10-07 04:26	80m	+10 / -	N8F	- / -	3	Partial capture
10-07 04:16	80m	+3 / -	TF3VG	- / -10	5	✓ Closing fragment
10-07 04:11	80m	+11 / -	TF3VG	- / -	2	Partial capture
10-07 03:50	80m	+2 / -7	RC6OU	-3 / +8	5	✓ Full exchange observed
10-07 03:46	80m	+7 / -	KB0FHP	- / -20	4	Partial capture
10-07 03:44	80m	+6 / -11	KP2B	-24 / -13	5	✓ Full exchange observed
10-07 03:41	80m	+8 / -	J48S	- / -9	3	✓ Closing fragment
10-07 03:37	80m	+12 / -	KP2B	- / -	2	Partial capture
10-06 18:35	80m	+7 / -	JA3FYC	- / -	8	Partial capture
10-06 04:56	40m	- / -12	OA4ENG	-14 / -	2	Partial capture
10-06 04:30	80m	+4 / -	K4YT	- / -	4	Partial capture
10-06 04:27	80m	+10 / -	K4YT	- / -	2	Partial capture
10-06 04:21	80m	+2 / -	YY5EHT	- / -	5	Partial capture
10-06 04:05	160m	+12 / -	W4IPC	- / -	4	Partial capture
10-04 04:45	80m	+16 / -	RK3YWS/P	- / -	2	Partial capture
10-04 04:44	80m	+10 / -	KS0AA	- / -	2	Partial capture
10-04 04:40	80m	+20 / -17	UC6D	-16 / -11	4	✓ Full exchange observed
10-04 04:39	80m	+17 / 0	HF1Z	0 / -	4	✓ 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
224000 +11 1841  9V1YC OK1XV JN79 (x3)
043115  +3 1735  KY2J OK1XV JN79 (x4)
043245 +14 1368  W4PSK OK1XV JN79 (x3)
043545 +16 1368  N8HRZ OK1XV JN79 (x5)

160m

UTC    dB Audio  Message
043330  +5 1633  KB3VQC OK1XV JN79 (x5)
033600  +1 2064  HC1BI OK1XV JN79 (x10)

40m

UTC    dB Audio  Message
151630  +8  966  BI4IWL OK1XV JN79 (x6)
045630 -14 2367  OK1XV OA4ENG -12 (x2)
045500  +2  645  OK1XV OH3OJ -06 (x4)
120930  -2 2127  RU0LL/P OK1XV JN79
120945  -2 1472  OK1XV EO210WLP -11
121000  -3 2127  RU0LL/P OK1XV R+10

10m

UTC    dB Audio  Message
191500 -18 1360  HI8UD OK1XV JN79
191630 -13 1360  EA8AT OK1XV JN79 (x3)
191830 -17 1360  2E0OEW OK1XV -08
192000 -15 1360  DL3MIB OK1XV -23 (x2)
192200 -21 1360  9Y4DG OK1XV JN79 (x2)
193445 -12 2595  OK1XV CE2SV -01 (x2)

20m

UTC    dB Audio  Message
044530 -18 2115  OK1XV R5AV RR73
043830  -6 1223  OK1XV RN6MA -15 (x3)
042115 -21 1396  OK1XV R4FDW -15
074400 -21 1285  KG5WAZ OK1XV R-19

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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