7Z1SJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Locator transmitted in a decoded message: LL25

Receiver-side FT8 activity involving 7Z1SJ, decoded by SO8OO in southeastern Poland. 56 related FT8 messages, observed on 40m, 20m, 10m, across 8 UTC dates. Heard between 2026-06-21 and 2026-07-17.

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

56
Related messages
0
CQ messages
8
UTC dates heard
-9 dB
Mean decoder S/N

Bands

First seen: 2026-06-21
Last seen: 2026-07-17 21:54 UTC

Activity Heatmap

Locator transmitted by 7Z1SJ

Approximate centre of LL25, decoded 2026-07-17 23:50 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 UTCBand7Z1SJ S/NCounterpartCounterpart S/NMsgsCapture
07-17 23:50 20m -14 / - W6C - / -18 4 ✓ Closing fragment
07-17 23:48 20m - / - N3NVA -12 / - 12 Partial capture
07-17 23:46 20m -14 / - XE3E - / -19 3 ✓ Closing fragment
07-17 23:42 20m -13 / - W6C - / - 6 Partial capture
07-17 23:39 20m -12 / - VO2NS - / -9 3 ✓ Closing fragment
07-17 23:34 20m -4 / - OX3AH - / -17 8 ✓ Closing fragment
07-17 00:11 20m - / - EA1IOK -4 / - 3 Partial capture
07-17 00:02 20m -4 / -9 YN7DS -8 / -15 15 ✓ Full exchange observed
07-10 02:19 20m -2 / - 4A1MTY - / -12 7 ✓ Closing fragment
07-09 03:26 20m -16 / - 4A1MTY - / -6 2 Partial capture
07-08 23:44 20m -13 / - T46FCR - / - 2 Partial capture
07-08 23:37 20m 0 / - T46FCR - / - 3 Partial capture
07-08 21:57 20m -5 / - N5G - / -16 5 ✓ Closing fragment
07-08 19:03 20m +3 / - KF0YOB - / -18 3 ✓ Closing fragment
07-08 18:54 20m - / - II2MPP -2 / - 2 Partial capture
07-08 18:52 20m - / - EA3RR -7 / - 5 Partial capture
07-08 18:52 20m +4 / - ZF2OO - / -17 3 ✓ Closing fragment
07-07 05:28 20m -17 / - <...> - / -18 3 Partial capture
07-06 02:24 20m -14 / - WC5WC - / -9 5 ✓ Closing fragment
07-04 20:31 20m -11 / - K2L - / -19 4 ✓ Closing fragment
06-26 03:27 20m - / - DK2EU +6 / - 2 Partial capture
06-26 03:23 20m - / - OH1LXF -1 / - 6 Partial capture
06-26 03:19 20m -4 / - 3G0YM - / -14 9 ✓ Closing fragment
06-26 03:17 20m - / - HK4J -20 / - 2 Partial capture
06-26 03:09 20m +1 / - 3G0YM - / - 11 Partial capture
06-26 03:08 20m - / - V31DL -8 / - 3 Partial capture
06-26 03:06 20m +2 / - J88IH - / -18 5 ✓ Closing fragment
06-26 01:46 20m -10 / - W6P - / - 2 Partial capture
06-26 01:37 20m -12 / - W6P - / -12 8 ✓ Closing fragment
06-26 01:33 20m -8 / - VE4ZIM - / - 2 Partial capture
06-26 01:07 20m - / - W3XOX -12 / - 2 Partial capture
06-26 01:03 20m - / - W3XOX -14 / - 3 Partial capture
06-26 01:01 20m -4 / - VE4ZIM - / - 7 Partial capture
06-25 02:25 20m +7 / - <...> - / -21 5 Partial capture
06-25 02:22 20m -11 / - CO6HZ - / -12 3 ✓ Closing fragment
06-25 02:15 20m -7 / - CO6HZ - / - 7 Partial capture
06-25 00:42 40m -14 / - W3DEN - / -19 2 ✓ Closing fragment
06-25 00:40 40m - / -5 SP2DTW -4 / - 2 Partial capture
06-25 00:38 40m -18 / - KP4QVQ - / -20 3 Partial capture
06-25 00:34 40m -17 / - OA4ENG - / -8 3 ✓ Closing fragment
06-25 00:31 40m -9 / - K4C - / -18 3 Partial capture
06-24 04:25 20m +3 / - W6C - / -17 2 ✓ Closing fragment
06-23 04:54 20m - / - EA5JKT -20 / - 2 Partial capture
06-23 04:46 20m -7 / - K0C - / - 17 Partial capture
06-22 23:58 20m -2 / - VP2MAA - / -12 3 ✓ Closing fragment
06-22 23:56 20m -2 / - <...> - / -15 2 Partial capture
06-22 21:42 20m +2 / - K4C - / -17 6 ✓ Closing fragment
06-21 20:26 10m - / - UA4FKT -14 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
234900 -15 1977  7Z1SJ N3NVA FN20 (x3)
235045 -16 1765  W6C 7Z1SJ LL25
235100 -10 1977  7Z1SJ N3NVA FN20
235115 -15 1765  W6C 7Z1SJ R-18
235130 -11 1977  7Z1SJ N3NVA FN20
235145 -14 1765  W6C 7Z1SJ R-20
235200 -10 1977  7Z1SJ N3NVA FN20
235215 -12 1766  W6C 7Z1SJ 73
235230  -8 1977  7Z1SJ N3NVA FN20 (x5)
40m
UTC    dB Audio  Message
003115  -8 2525  K4C 7Z1SJ LL25 (x3)
003445 -18 1994  OA4ENG 7Z1SJ LL25 (x3)
003815 -19 1994  KP4QVQ 7Z1SJ LL25 (x3)
004030  -3 1995  7Z1SJ SP2DTW -05 (x2)
004215 -16 1994  W3DEN 7Z1SJ -19 (x2)
10m
UTC    dB Audio  Message
202600 -12 1217  7Z1SJ UA4FKT LO23 (x4)

Decoder S/N history by band

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