IZ4TSV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Locator transmitted in a decoded message: JN54

Receiver-side FT8 activity involving IZ4TSV, decoded by SO8OO in southeastern Poland. 327 related FT8 messages, 180 CQ messages, observed on 40m, 20m, 10m, across 27 UTC dates. Heard between 2026-05-22 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

327
Related messages
180
CQ messages
27
UTC dates heard
-6 dB
Mean decoder S/N

Bands

First seen: 2026-05-22
Last seen: 2026-08-20 02:39 UTC

Activity Heatmap

Locator transmitted by IZ4TSV

Approximate centre of JN54, decoded 2026-08-19 04:42 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 UTCBandIZ4TSV S/NCounterpartCounterpart S/NMsgsCapture
08-20 04:38 20m - / -12 R8AGW -8 / - 2 Partial capture
08-20 04:30 20m - / -18 TJ1GD -8 / - 3 ✓ Closing fragment
08-19 04:41 40m -13 / - W4WFC - / - 3 Partial capture
08-19 04:39 40m -12 / - ND9M - / -13 3 ✓ Closing fragment
08-19 04:36 40m -8 / -23 Z34K -12 / 0 4 ✓ Full exchange observed
08-14 20:47 40m -15 / - EU3LA -14 / - 2 ✓ Closing observed
08-14 20:40 40m -17 / 0 DG5SMY -2 / +8 3 ✓ Full exchange observed
08-14 20:33 40m -12 / - DL80NRW - / +5 2 Partial capture
08-14 20:28 40m -16 / +1 GJ0KYZ -16 / - 3 ✓ Closing observed
08-03 17:56 20m -7 / - JF1KWI - / -16 3 ✓ Closing fragment
08-03 17:54 20m +4 / - RZ3Z/P - / -6 2 Partial capture
08-03 17:53 20m -10 / -6 DL8YBL -13 / -18 9 Partial capture
08-03 17:51 20m 0 / -16 DL2MEL -11 / +3 5 ✓ Full exchange observed
08-03 17:46 20m -6 / - <...> - / -10 2 Partial capture
08-03 17:44 20m - / - DF0KK -4 / - 2 ✓ Closing fragment
08-03 17:44 20m - / - UR5XEJ -18 / - 2 Partial capture
08-03 17:39 20m - / - ON7AN -12 / - 2 ✓ Closing fragment
08-03 17:36 20m -18 / - PD4RJ - / -1 3 ✓ Closing fragment
07-22 02:55 20m -11 / - UA9QFF - / 0 10 Partial capture
07-22 02:47 20m -8 / - TJ1GD/P - / - 2 Partial capture
07-20 07:31 10m -12 / - R1BED - / +10 2 ✓ Closing fragment
07-20 07:28 10m - / - PD5WA -15 / - 2 ✓ Closing fragment
07-20 07:26 10m -16 / - UA4FEN - / -5 2 ✓ Closing fragment
07-20 07:24 10m - / - PD5WA -15 / - 2 Partial capture
07-17 10:37 10m - / -1 LZ4VR -16 / - 2 ✓ Closing fragment
07-14 21:56 20m -10 / - JA3HBR - / -8 2 ✓ Closing fragment
07-14 21:54 20m -11 / - OH6NIO - / -2 2 ✓ Closing fragment
07-14 21:49 20m -5 / - BD4UJ - / +1 3 ✓ Closing fragment
07-14 21:46 20m -6 / - JP7BRB - / -7 2 ✓ Closing fragment
07-14 21:44 20m -4 / - BG5BNW - / -17 2 ✓ Closing fragment
07-03 21:14 40m - / - PA1AA -18 / - 3 ✓ Closing fragment
06-26 04:53 20m - / -17 DL1UDO -7 / - 2 ✓ Closing fragment
06-26 04:51 20m - / - DL6UJ -15 / - 2 ✓ Closing fragment
06-26 04:39 20m -22 / - ON1JP - / -13 2 Partial capture
06-22 16:37 10m -7 / - PD0HLA - / - 2 ✓ Closing fragment
06-22 16:33 10m -2 / - YO4DWD - / -6 2 ✓ Closing fragment
06-22 16:31 10m -6 / - YO2AA - / +7 2 ✓ Closing fragment
06-22 16:26 10m -4 / - LA2GCA - / -23 2 ✓ Closing fragment
06-22 16:25 10m -2 / -14 RA6OY +4 / -15 8 ✓ Full exchange observed
06-20 02:47 40m -4 / +6 G3TKT -14 / -3 5 ✓ Full exchange observed
06-20 02:45 40m -2 / -17 IQ4JO +15 / -7 5 ✓ Full exchange observed
06-20 02:40 40m -3 / - ON4MAP -24 / -16 3 ✓ Closing observed
06-20 02:36 40m -4 / - PD9FLX - / -5 2 ✓ Closing fragment
06-20 02:33 40m -6 / - R9AL - / -10 2 ✓ Closing fragment
06-20 02:31 40m -4 / - SP9WLC - / - 2 ✓ Closing fragment
06-20 02:27 40m -2 / - R6ZAJ - / +1 3 ✓ Closing fragment
06-20 02:23 40m -4 / - G7KFQ -14 / -7 3 ✓ Closing observed
06-20 02:17 40m -4 / - SP6AMI - / - 6 ✓ Closing fragment
06-20 02:12 40m -6 / - RZ4FWA - / -11 3 ✓ Closing fragment
06-20 02:08 40m -4 / - SP1EG - / +8 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
175630  -5 2171  JF1KWI IZ4TSV -16 (x3)
175745 -13 1644  IZ4TSV DL8YBL JO31 (x2)
175830  -6 2171  DL8YBL IZ4TSV -18
175845 -14 1650  IZ4TSV DL8YBL JO31 (x2)
180100 -13 2171  DL8YBL IZ4TSV -14
042715  -9  558  IZ4TSV R3PLN/P -11
043030  -6  606  IZ4TSV TJ1GD -18 (x3)
043830  -7 2479  IZ4TSV R8AGW R-12 (x2)
40m
UTC    dB Audio  Message
043245 -14 2087  CQ IZ4TSV JN54 (x5)
043615 -12  288  Z34K IZ4TSV JN54
043800 -12  288  IZ4TSV Z34K -23
043815  -3  288  Z34K IZ4TSV R+00 (x2)
043915 -13 2287  ND9M IZ4TSV JN54 (x3)
044145 -14 1304  W4WFC IZ4TSV JN54 (x3)
10m
UTC    dB Audio  Message
163800  -8 2146  PD0HLA IZ4TSV RR73
103715 -18 1643  IZ4TSV LZ4VR R-01 (x2)
072245 -17 2137  CQ IZ4TSV JN54
072400 -18 1551  IZ4TSV PD5WA JO22 (x2)
072615 -23 2137  CQ IZ4TSV JN54
072645 -18 2137  UA4FEN IZ4TSV R-05 (x2)
072830 -15 1550  IZ4TSV PD5WA R+11 (x2)
073045 -16 2137  CQ IZ4TSV JN54
073115 -13 2137  R1BED IZ4TSV R+10 (x2)
073400 -13 2138  IZ4TSV R3PLA KO84

Decoder S/N history by band

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