SA5K — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Locator transmitted in a decoded message: JO78

Receiver-side FT8 activity involving SA5K, decoded by SO8OO in southeastern Poland. 58 related FT8 messages, observed on 40m, 20m, 10m, across 13 UTC dates. Heard between 2026-05-18 and 2026-08-14.

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

58
Related messages
0
CQ messages
13
UTC dates heard
-10 dB
Mean decoder S/N

Bands

40m 20m 10m
First seen: 2026-05-18
Last seen: 2026-08-14 19:12 UTC

Frequent QSO partners observed at SO8OO

Stations SA5K worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by SA5K

Approximate centre of JO78, decoded 2026-08-21 09:01 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 UTCBandSA5K S/NCounterpartCounterpart S/NMsgsCapture
08-21 08:59 20m -14 / - OJ0YL - / - 2 Partial capture
08-14 21:13 40m -22 / - BI4KVT - / - 2 Partial capture
08-14 21:11 40m -17 / -12 IU2HUQ -17 / -2 3 ✓ Full exchange observed
08-14 21:07 40m -19 / - M0TNI - / -1 2 Partial capture
08-07 14:38 20m - / -8 R4FDW -18 / - 2 Partial capture
08-07 14:34 20m - / -8 R4FDW -19 / - 3 Partial capture
08-02 09:31 20m -4 / - F6KWP/P -6 / -1 6 ✓ Full exchange observed
07-25 17:17 40m - / - YU1BV -3 / - 5 Partial capture
07-14 08:28 20m -18 / - PY7XC - / -2 3 Partial capture
07-14 08:27 20m -14 / - JA7QOA - / - 2 Partial capture
07-07 08:43 20m - / -23 YO3GNU -16 / - 3 ✓ Closing fragment
06-20 12:57 20m - / - EA3HMM -14 / - 2 Partial capture
06-20 12:55 20m -6 / - 4S6ARW - / -17 2 ✓ Closing fragment
06-20 12:52 20m -8 / - YB2MBO - / - 4 Partial capture
06-19 07:43 40m -22 / - <...> - / - 2 Partial capture
06-19 07:37 40m -15 / - DL8SXB -24 / - 3 ✓ Closing observed
06-19 07:36 40m -11 / - M0ICR/P - / - 4 ✓ Closing fragment
06-07 08:07 40m -24 / -22 F6KWP/P -22 / -1 2 Partial capture
06-07 05:56 40m - / -20 ON3CCM/P -16 / - 2 ✓ Closing fragment
06-05 14:11 40m - / - IK4LZH -7 / - 2 Partial capture
06-05 13:43 40m - / -2 LY1SR -1 / - 2 ✓ Closing fragment
06-05 13:42 40m - / - IK4LZH -2 / - 4 Partial capture
06-05 13:40 40m - / +2 SP2OSA -13 / - 4 ✓ Closing fragment
06-03 21:10 20m +6 / - V31DL - / - 3 Partial capture
06-03 21:08 20m +7 / - JR1NHD - / - 2 Partial capture
06-03 21:04 20m +4 / - BA7LUI - / -10 5 ✓ Closing fragment
05-31 16:33 40m -9 / - G7SAT - / - 3 Partial capture
05-30 13:32 40m - / -1 OK7JN/P -8 / - 3 ✓ Closing fragment
05-30 13:29 20m -20 / - M1DDD/P - / -1 2 ✓ Closing fragment
05-30 06:30 40m - / - SQ2JSE -14 / - 2 Partial capture
05-30 06:27 40m - / -14 PE1NPS -11 / - 5 ✓ Closing fragment
05-30 06:21 40m -16 / - OK2USB - / +2 3 Partial capture
05-27 10:52 20m -2 / - VE3VEE - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
084300 -19 2310  9Y4DG SA5K JO78
093145  -3 1514  F6KWP/P SA5K JO78 (x3)
093300  -6 1418  SA5K F6KWP/P +22
093315  -4 1420  F6KWP/P SA5K R-01
093330  -7 1418  SA5K F6KWP/P RR73
164930 -15 1075  SA5K 9W2DX -08
143415 -15 2125  SA5K R4FDW -08 (x5)
085915 -18 1239  OJ0YL SA5K JO78 (x2)
40m 
UTC    dB Audio  Message
171700  -2 2724  SA5K YU1BV KN04 (x6)
110415 -23 1421  SA5K SP9D JO90
210745 -17 1427  M0TNI SA5K JO78 (x2)
211000  -8 1433  SA5K IU3BIX JN65
211130 -16 1739  SA5K IU2HUQ -12
211145 -17 1433  IU2HUQ SA5K R-02
211200 -18 1739  SA5K IU2HUQ RR73
211315 -22 1433  BI4KVT SA5K JO78 (x2)

Decoder S/N history by band

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