OK1UOZ — 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 OK1UOZ, decoded by SO8OO in southeastern Poland. 8,847 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-10-06.

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 8,847 FT8 messages attributed to OK1UOZ as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (82%), followed by 20 m (13%) and 40 m (5%). The busiest six-hour window was 17:00-23:00 UTC, containing 45% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was +9.8 dB.

Overview

8,847
Messages attributed
44
UTC dates decoded
538
Active 15-min windows
+9.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-24
Last attributed message: 2026-10-06 03:12 UTC

Observed FT8 message patterns

Attributed sample
8,847 messages
Active dates
44 UTC dates
Estimated median S/N
+9.8 dB
Estimated 10th-90th percentile
-6 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 142, moderate (-15 to -9 dB) 496, strong (≥ -8 dB) 8,209.

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.

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 OK1UOZ

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 · 6,641 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
487 km (approx.)
Last such locator decoded
2026-10-06 03:11 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 UTCBandOK1UOZ S/NCounterpartCounterpart S/NMsgsCapture
10-06 03:11 80m 0 / - OH8D -21 / -13 4 ✓ Closing observed
10-06 02:56 80m -3 / - EA7LIC - / - 9 Partial capture
10-06 02:50 80m -1 / - 9A4ZM - / - 10 Partial capture
10-06 02:37 80m +4 / - N3F - / - 3 Partial capture
10-06 02:36 80m +16 / - R9CS/P +2 / +1 5 ✓ Full exchange observed
10-06 02:29 80m +13 / -22 N4KEB -22 / -18 15 ✓ Full exchange observed
10-06 02:24 80m +22 / - IQ9SZ - / - 10 Partial capture
10-06 02:22 80m +19 / -7 SX2LGT -11 / -12 5 ✓ Full exchange observed
10-06 02:17 80m +10 / - IQ9SZ - / - 10 Partial capture
10-06 02:12 80m +14 / - ON3ANY - / - 10 Partial capture
10-06 02:09 80m -1 / - M0MQH - / - 6 Partial capture
10-06 02:02 80m +9 / - ON3ANY - / - 7 Partial capture
10-06 01:57 80m +8 / - N3F - / - 10 Partial capture
10-06 01:52 80m +14 / - ON3ANY - / - 10 Partial capture
10-06 01:47 80m +9 / - N3F - / - 10 Partial capture
10-06 01:41 80m +17 / - LZ936BA - / - 10 Partial capture
10-06 01:36 80m +14 / - ON3ANY - / - 10 Partial capture
10-06 01:34 80m +15 / - DL4DP - / -10 3 ✓ Closing fragment
10-06 01:27 80m +14 / - EA7LIC - / - 9 Partial capture
10-06 01:22 80m +15 / - ON3ANY - / - 9 Partial capture
10-06 01:20 80m +12 / +6 LY5A +3 / +7 5 ✓ Full exchange observed
10-06 01:15 80m +22 / -6 OM1FED 0 / -13 4 ✓ Full exchange observed
10-06 01:14 80m +22 / - ON4MAP - / 0 2 ✓ Closing fragment
10-06 01:12 80m - / - OM1FED -6 / - 2 Partial capture
10-06 01:12 80m +15 / - RW9MZ -17 / -12 5 ✓ Closing observed
10-06 01:06 80m +7 / - W1EQ - / - 3 Partial capture
10-06 01:05 80m +4 / -12 C5R -23 / - 2 Partial capture
10-06 01:02 80m +6 / - Z61DX +2 / -1 4 ✓ Closing observed
09-25 17:29 40m +1 / -14 SP2ZST -9 / -24 4 ✓ Full exchange observed
09-25 17:26 40m +1 / -8 YU7AS -14 / -3 3 ✓ Full exchange observed
09-25 17:22 40m 0 / -3 PD4RJ -13 / -8 6 ✓ Full exchange observed
09-25 17:17 40m -3 / -12 SP2JAP -5 / -16 7 ✓ Full exchange observed
09-25 17:12 40m -3 / -5 R9WGG -15 / -11 5 ✓ Full exchange observed
09-25 17:04 40m -8 / - F1PBZ - / +3 2 ✓ Closing fragment
09-25 03:24 80m +12 / - N3LAG - / - 10 Partial capture
09-25 03:10 80m - / - SQ9LOJ -2 / - 3 Partial capture
09-25 03:09 80m +8 / - SN40KZE - / - 4 Partial capture
09-25 03:08 80m +12 / +8 DO1OAS -4 / -12 4 ✓ Full exchange observed
09-25 03:01 80m +11 / - DO1OAS - / +2 3 Partial capture
09-25 03:00 80m +11 / - N0YO - / -19 3 ✓ Closing fragment
09-25 02:58 80m +14 / - HC1DAZ - / -21 2 ✓ Closing fragment
09-25 02:57 80m - / - DO1OAS 0 / - 2 Partial capture
09-25 02:56 80m +10 / +1 R5AV +4 / -5 4 ✓ Full exchange observed
09-25 02:54 80m +11 / - HC1DAZ - / - 2 Partial capture
09-25 02:45 80m +12 / - R3XBL - / - 17 Partial capture
09-25 02:40 80m +10 / - W1HS - / - 9 Partial capture
09-25 02:39 80m +10 / - KP4PW - / -17 3 ✓ Closing fragment
09-24 18:43 80m +20 / - DO5STL - / -14 2 Partial capture
09-24 18:39 80m +13 / - SA4AGM - / - 3 Partial capture
09-24 18:23 80m +11 / - RA3FD - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
030600  -8 2835  CQ OK1UOZ JO70 (x11)
031115 -21 2221  OK1UOZ OH8D KP20
031130  +0 2835  OH8D OK1UOZ -13 (x2)
031215 -21 2222  OK1UOZ OH8D 73
10m
UTC    dB Audio  Message
143845 -10 2319  OK1UOZ RN6MA +10 (x2)
145045 -10  631  OK1UOZ ON4KVI R-01 (x2)
145515 -13  775  OK1UOZ DN9DKN JO31
145815  +1 2574  OK1UOZ DL8TV JN49 (x3)
151615 -23 1494  OK1UOZ DN9AD JO52
152445 -13  758  OK1UOZ G0JEI -11 (x2)
152245 -19 1872  OK1UOZ DK7JR JO31 (x2)
152415  -9 1783  OK1UOZ PE9JAN R+01
141815 -12  601  OK1UOZ EA7L R-08
40m
UTC    dB Audio  Message
172615 -14 1362  OK1UOZ YU7AS R-08
172630  -2 2482  YU7AS OK1UOZ RR73
172700  +3 2482  CQ OK1UOZ JO70 (x2)
172900  +1 2482  SP2ZST OK1UOZ -24
172915 -10 2482  OK1UOZ SP2ZST JO93 (x3)
173030  -2 2482  CQ OK1UOZ JO70 (x7)
20m
UTC    dB Audio  Message
062815 -15 1916  OK1UOZ RK4UZ R-12 (x2)
063215 -14 1976  OK1UOZ RN3AKL +00
064115 -12 2303  OK1UOZ R8QA RR73
132915  -4 2569  OK1UOZ R6ADH KN94 (x3)
133415 -17 2037  OK1UOZ G6PWS IO91
133445 -18 3102  OK1UOZ VU2FR ML88
133800  -6  326  OK1UOZ G6PWS IO91 (x6)

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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