F4JSZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Locator transmitted in a decoded message: JN05

Receiver-side FT8 activity involving F4JSZ, decoded by SO8OO in southeastern Poland. 129 related FT8 messages, 21 CQ messages, observed on 160m, 80m, 60m, 40m, 20m, 10m, across 13 UTC dates. Heard between 2026-05-28 and 2026-08-20.

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

129
Related messages
21
CQ messages
13
UTC dates heard
-8 dB
Mean decoder S/N

Bands

First seen: 2026-05-28
Last seen: 2026-08-20 17:23 UTC

Activity Heatmap

Locator transmitted by F4JSZ

Approximate centre of JN05, decoded 2026-08-20 19:18 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 UTCBandF4JSZ S/NCounterpartCounterpart S/NMsgsCapture
08-20 19:21 20m 0 / - XU7O -5 / -8 3 ✓ Closing observed
08-20 19:17 20m +2 / - XU7O - / - 2 Partial capture
08-20 19:07 20m - / -16 XU7O -3 / - 2 Partial capture
08-20 18:45 60m -9 / - OJ0JR - / -7 4 ✓ Closing fragment
08-18 19:52 60m -18 / - OJ0YL - / - 3 Partial capture
08-08 15:36 20m - / - M7KPQ -18 / - 3 Partial capture
08-08 15:32 20m -21 / -4 HB9HYO -20 / +5 2 Partial capture
08-08 15:31 20m - / - F4HSB -12 / - 2 Partial capture
08-08 15:26 20m -21 / - VO1IV - / -15 4 ✓ Closing fragment
08-05 06:03 20m -12 / - SV8NAJ - / +2 2 ✓ Closing fragment
07-30 19:02 20m -12 / - 6K2MAS - / - 3 Partial capture
07-30 18:59 20m -7 / - BV7RR - / - 3 Partial capture
07-30 18:49 20m -5 / - BA7SAY - / - 11 Partial capture
07-30 18:46 20m -6 / - 6K2MAS - / - 3 Partial capture
07-30 18:43 20m -17 / - BV7RR - / - 2 Partial capture
07-13 19:18 40m - / - DK3TNA -22 / - 2 Partial capture
07-13 19:16 40m - / -3 IQ4JO +5 / - 2 Partial capture
07-13 06:26 20m -21 / -11 DK3TNA -14 / - 3 ✓ Closing observed
07-13 06:23 20m - / -10 SP1EXD -8 / - 3 Partial capture
06-22 05:16 20m -1 / - K7CTV - / -22 2 Partial capture
06-22 05:12 20m -9 / - W5ART - / -14 2 ✓ Closing fragment
06-21 07:25 20m +3 / - 3G0YM - / - 5 Partial capture
06-20 05:21 20m 0 / - 3G0YM - / - 23 Partial capture
06-20 05:03 20m +4 / - 3G0YM - / - 21 Partial capture
06-18 04:03 60m -7 / - F5HNQ -10 / +7 7 Partial capture
06-18 04:00 60m -10 / -10 LZ2XF -4 / -1 4 ✓ Full exchange observed
06-18 03:57 60m -8 / - F5MYK -15 / -5 3 ✓ Closing observed
06-18 03:53 60m -8 / -9 DD6ZV +10 / -5 10 Partial capture
06-18 03:53 60m -6 / - F5HNQ -14 / -1 4 Partial capture
06-18 03:53 60m - / - F5MYK -15 / - 2 Partial capture
06-17 14:41 20m -9 / - 9M8DEN - / - 2 Partial capture
06-15 14:38 10m -10 / - A71AH - / - 2 Partial capture
06-15 14:37 10m -12 / - DN9BLN - / - 2 ✓ Closing fragment
06-15 14:26 10m - / -17 PY5TD -14 / - 4 ✓ Closing fragment
06-15 14:24 10m - / -2 IQ4JO 0 / - 2 Partial capture
06-02 03:17 160m - / -19 DD0AM -9 / - 5 Partial capture
05-31 18:43 20m - / -1 R3LDK +8 / - 2 Partial capture
05-29 19:12 60m -8 / - OE5YCP - / -14 4 ✓ Closing fragment
05-29 19:09 60m -9 / 0 LB5WB -6 / -10 3 Partial capture
05-29 19:08 60m -6 / -1 OZ1SMB -17 / -2 5 ✓ Full exchange observed
05-29 19:07 60m -6 / +9 F5LMJ -14 / - 3 ✓ Closing observed
05-29 19:03 60m - / +2 ON7GB -4 / - 8 ✓ Closing fragment
05-29 19:02 60m -6 / - DD6ZV +3 / 0 4 Partial capture
05-29 19:02 60m -9 / +2 DK7ZT -16 / -3 3 ✓ Full exchange observed
05-29 19:02 60m - / +5 IK4CBO -12 / - 4 Partial capture
05-29 09:20 20m -16 / -20 IQ4JO +6 / - 3 ✓ Closing observed
05-29 09:18 20m - / -10 R5AV -2 / - 2 ✓ Closing fragment
05-29 09:16 20m -18 / -11 UR5VPR -6 / -3 3 ✓ Full exchange observed
05-29 09:02 20m - / -24 RU3QR -6 / - 5 Partial capture
05-29 08:51 20m - / +7 CT1BFP -18 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
153230 -21 1075  HB9HYO F4JSZ +05
153315 -20 1662  F4JSZ HB9HYO R-04
153615 -18 1573  F4JSZ M7KPQ IO82
153645 -23 1857  F4JSZ G4PEY IO91
153645 -18 1573  F4JSZ M7KPQ IO82 (x2)
190700  -3  486  F4JSZ XU7O -16 (x2)
191145  -6  809  XU7O F4JSZ JN05 (x4)
192200  -5  486  F4JSZ XU7O RR73
192215  +0  685  XU7O F4JSZ 73
192300  +1  686  F4JSZ YO4NF -13
60m
UTC    dB Audio  Message
040630  -8  653  F5HNQ F4JSZ +06 (x2)
040730  -8  653  CQ F4JSZ JN05 (x2)
195245 -14 2092  OJ0YL F4JSZ JN05 (x4)
200700 -16 1867  F4JSZ OJ0YL RR73
201400 -16 1807  F4JSZ RR73; PE1OFJ <...> -10
184545  -9  791  OJ0JR F4JSZ JN05 (x3)
184700 +10  378  F4JSZ RR73; LA5LJA <...> +02
184715 -11  791  OJ0JR F4JSZ 73
40m
UTC    dB Audio  Message
192545  -7 1584  F4JSZ G8VJU JO01
191215 -19 1364  DK4RH F4JSZ JN05
191400 -19 1240  F4JSZ ON5RJ R-16
191615  +1 2762  F4JSZ IQ4JO JN63 (x2)
191730 -19 1364  SP9JMZ F4JSZ -19
191800 -22 1364  CQ F4JSZ JN05
191845 -23 1389  F4JSZ DK3TNA JO62 (x2)
80m
UTC    dB Audio  Message
185930 -23 1703  CQ F4JSZ JN05
10m
UTC    dB Audio  Message
195945 -15 2316  F4JSZ PY2DPM R+08 (x2)
142415  +3 2779  F4JSZ IQ4JO JN63 (x2)
142545 -10 1612  F4JSZ IZ0MYH 73
142615 -17 1067  F4JSZ PY5TD GG54 (x4)
143430 -16 1067  <...> F4JSZ JN05
143700 -12 1067  DN9BLN F4JSZ RR73 (x2)
143800 -11 1067  A71AH F4JSZ JN05 (x2)
163715 -10 2500  3G0YM F4JSZ JN05
160m
UTC    dB Audio  Message
031700  -8  623  F4JSZ DD0AM -19 (x5)

Decoder S/N history by band

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