OK1JAZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Locator transmitted in a decoded message: JO70

Receiver-side FT8 activity involving OK1JAZ, decoded by SO8OO in southeastern Poland. 480 related FT8 messages, 4 CQ messages, observed on 80m, 40m, 20m, 10m, across 49 UTC dates. Heard between 2026-06-13 and 2026-08-21.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

480
Related messages
4
CQ messages
49
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-06-13
Last seen: 2026-08-21 03:51 UTC

Activity Heatmap

Locator transmitted by OK1JAZ

Approximate centre of JO70, decoded 2026-08-21 05:44 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandOK1JAZ S/NCounterpartCounterpart S/NMsgsCapture
08-21 05:51 40m +6 / +7 YL2JZ -13 / - 4 ✓ Full exchange observed
08-21 05:46 40m +4 / - OJ0JR - / -7 2 ✓ Closing fragment
08-21 05:44 40m +6 / - 5P1KZX - / +6 2 Partial capture
08-21 03:15 40m - / -13 YO4NF -2 / - 4 ✓ Closing fragment
08-21 03:14 40m - / -9 PV8AJ -15 / - 2 ✓ Closing fragment
08-20 15:26 10m - / - DN9AD -18 / - 2 Partial capture
08-16 15:56 20m +11 / -5 <...> -6 / - 3 Partial capture
08-15 20:29 20m - / -3 JA8EPO -2 / - 2 ✓ Closing fragment
08-15 19:45 20m -8 / - C31KC - / - 2 Partial capture
08-12 00:50 20m - / +5 KE4EB -14 / - 7 Partial capture
08-09 09:23 20m -2 / - I0XNH -10 / - 5 ✓ Full exchange observed
08-08 18:49 20m - / +9 PD5DJ +7 / - 3 ✓ Closing fragment
08-08 18:10 40m -3 / -9 EU4U -2 / - 3 Partial capture
07-31 03:32 20m -6 / - KJ5PTH - / - 2 Partial capture
07-31 03:27 20m -5 / - N5CH - / -11 2 Partial capture
07-29 02:54 20m - / -1 KA1DCB -15 / - 2 ✓ Closing fragment
07-29 01:59 20m - / -11 N5IH -14 / - 2 Partial capture
07-27 16:44 20m - / -12 R4FDW -18 / - 6 Partial capture
07-27 02:42 20m - / -2 KU1CW -8 / - 2 ✓ Closing fragment
07-26 13:18 20m - / 0 S09S -7 / - 2 ✓ Closing fragment
07-25 18:25 20m - / -5 JY5CG -15 / - 2 ✓ Closing fragment
07-25 18:07 20m -12 / - 9J2FI - / - 2 Partial capture
07-25 05:13 20m -12 / -12 R3LDK -14 / -10 2 Partial capture
07-25 05:03 20m -18 / - F4LNM - / -6 2 Partial capture
07-25 05:01 20m -15 / -11 OD5KU -10 / -12 5 Partial capture
07-24 16:37 10m +2 / - GI7NKK - / -8 3 ✓ Closing fragment
07-24 15:56 10m 0 / +2 DN9MA -12 / +8 7 ✓ Full exchange observed
07-21 16:42 20m +4 / - EU4U - / -2 3 ✓ Closing fragment
07-21 14:32 20m 0 / -2 TA1BX -18 / +1 4 ✓ Full exchange observed
07-21 14:31 20m -1 / -2 R7CD -14 / - 3 ✓ Full exchange observed
07-21 13:36 10m - / - EW8DU -11 / - 6 Partial capture
07-21 01:42 40m -17 / -9 R2EA -4 / - 3 ✓ Closing observed
07-21 01:40 40m -17 / -1 S52D -13 / - 4 ✓ Full exchange observed
07-21 01:39 40m - / -14 R2EA -1 / - 2 Partial capture
07-19 09:11 10m - / +2 9A4ZM -5 / - 3 ✓ Closing fragment
07-19 04:57 20m - / +2 W4PSK -8 / - 3 ✓ Closing fragment
07-18 18:37 20m +4 / - OY1R - / -15 3 ✓ Closing fragment
07-18 05:34 40m -6 / - M0KSE - / -6 3 ✓ Closing fragment
07-18 05:33 40m -3 / - PE1NPS - / - 2 ✓ Closing fragment
07-18 05:31 40m -4 / - MW9LQA - / -4 3 ✓ Closing fragment
07-18 05:11 20m - / -16 R3IX -18 / - 2 ✓ Closing fragment
07-17 19:26 20m -10 / - <...> - / - 2 Partial capture
07-17 19:10 20m - / +7 IK4TVP -9 / - 4 ✓ Closing fragment
07-17 19:10 20m - / - R2AL 0 / - 3 ✓ Closing fragment
07-17 19:09 20m - / +1 YU1FW +1 / - 2 ✓ Closing fragment
07-17 06:09 40m -10 / +2 SP4MPH -16 / - 2 ✓ Closing observed
07-16 19:51 40m -16 / - PD0NGL - / -3 3 ✓ Closing fragment
07-16 19:49 40m -12 / - SQ4INW - / - 3 ✓ Closing fragment
07-16 19:48 40m -12 / - UB6OFG -7 / -5 2 ✓ Closing observed
07-16 19:42 40m -13 / -2 IN3IZQ -14 / - 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
031500 -15 1732  OK1JAZ PV8AJ RR73
031530  -6  537  OK1JAZ YO4NF -13 (x4)
031945 -11  876  OK1JAZ KF9UG RR73
032045  +3  346  OK1JAZ US3EW KN78
054445  +4  537  5P1KZX OK1JAZ JO70 (x2)
054645  +6  537  OJ0JR OK1JAZ R-07 (x2)
055100 -13 1607  OK1JAZ YL2JZ +07
055115  +9  537  YL2JZ OK1JAZ R+13
055130 -13 1607  OK1JAZ YL2JZ RR73
055145  +2  536  YL2JZ OK1JAZ 73
20m
UTC    dB Audio  Message
005215 -16 1234  OK1JAZ KE4EB +05 (x4)
193930  -9  789  C31KC OK1JAZ JO70 (x4)
202900  -1  402  OK1JAZ JA8EPO -03 (x2)
155645 +11  567  <...> OK1JAZ JO70
155800  -7  452  OK1JAZ <...> -05 (x3)
021300  -1  572  EY7BP OK1JAZ JO70
10m
UTC    dB Audio  Message
133800  -9  738  OK1JAZ EW8DU KO52 (x2)
155600 -12  964  OK1JAZ DN9MA +02
155615  +1  964  DN9MA OK1JAZ R+08
155630 -13  965  OK1JAZ DN9MA RR73
155645  -1  964  DN9MA OK1JAZ R+08
155700 -10  965  OK1JAZ DN9MA RR73
155715  +0  964  DN9MA OK1JAZ 73
155730 -15  965  OK1JAZ DN9MA 73
163715  +1  964  GI7NKK OK1JAZ JO70 (x3)
163915  +1  964  UX2SB OK1JAZ RR73
152615 -19 1494  OK1JAZ DN9AD JO52 (x2)
80m
UTC    dB Audio  Message
231930  -9 2087  OK1JAZ HB3YNF JN47
231930  +2 2257  OK1JAZ DL9KM 73
232030  -7 2087  OK1JAZ HB3YNF JN47 (x9)
192200 +14 2592  OK1JAZ SP9EVL +02 (x2)
192245  +1  820  SP9EVL OK1JAZ R+07
192300 +17 2593  OK1JAZ SP9EVL RR73

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.