IU5TTZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Locator transmitted in a decoded message: JN53

Receiver-side FT8 activity involving IU5TTZ, decoded by SO8OO in southeastern Poland. 735 related FT8 messages, 95 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 32 UTC dates. Heard between 2026-05-31 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

735
Related messages
95
CQ messages
32
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 20m 40m 60m 10m
First seen: 2026-05-31
Last seen: 2026-08-14 18:27 UTC

Frequent QSO partners observed at SO8OO

Stations IU5TTZ worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by IU5TTZ

Approximate centre of JN53, decoded 2026-08-10 21:39 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 UTCBandIU5TTZ S/NCounterpartCounterpart S/NMsgsCapture
08-14 20:21 20m - / - CT1BFP -12 / - 12 Partial capture
08-11 17:14 20m - / -8 ON1DGN -20 / - 2 Partial capture
08-10 21:37 80m -14 / - DO8JB -8 / -16 3 ✓ Closing observed
08-10 19:53 20m - / -12 DH2RL +3 / - 4 ✓ Closing fragment
08-10 19:45 20m - / - DH2RL -3 / - 2 Partial capture
08-09 20:19 40m - / -4 DH5BM -16 / - 2 ✓ Closing fragment
08-09 19:53 20m - / - CT1BFP -13 / - 13 Partial capture
08-09 19:37 20m - / -7 CT2KCK -12 / - 2 ✓ Closing fragment
08-08 20:05 20m - / +6 CR5VP -14 / - 9 Partial capture
08-08 19:31 20m - / -16 F1ODM 0 / - 3 ✓ Closing fragment
08-08 19:29 20m - / -17 M7NFV -6 / - 4 ✓ Closing fragment
08-08 19:09 20m -12 / -16 JA4FKX 0 / -7 4 ✓ Full exchange observed
08-06 09:28 20m - / - IQ4JO -10 / - 2 Partial capture
08-06 08:37 20m - / - F4HSB -16 / - 3 Partial capture
08-05 21:04 40m - / -17 F5MJN -12 / - 2 Partial capture
08-05 20:55 40m - / -17 F5MJN -11 / - 3 Partial capture
08-05 20:50 40m - / -17 EW8AAC -16 / - 3 Partial capture
08-05 20:43 80m - / -10 YO6LM -2 / - 2 Partial capture
08-05 20:23 20m - / - RA6OY -5 / - 3 Partial capture
08-05 19:59 80m - / - SP9UPH +13 / - 2 Partial capture
08-05 19:53 40m -12 / -11 R4ZZ -10 / - 2 ✓ Closing observed
08-03 21:01 20m -18 / - NO0X - / - 2 Partial capture
08-01 18:50 20m - / -14 PY6HD -14 / - 2 Partial capture
08-01 18:36 40m - / - PA3BMB -8 / - 2 Partial capture
08-01 18:27 20m - / +4 M7JVT -18 / - 2 Partial capture
08-01 18:20 20m - / -3 M8KKH +2 / - 4 ✓ Closing fragment
07-21 20:53 20m - / -18 4X1UF -12 / - 2 Partial capture
07-21 20:42 20m -2 / - OM7AMA - / - 2 Partial capture
07-21 20:38 20m -3 / -9 K2ZJ -19 / +9 2 Partial capture
07-21 20:37 20m -4 / - OD5ZZ - / - 2 Partial capture
07-21 20:31 20m -6 / - RW9MZ - / - 3 Partial capture
07-21 20:27 20m -7 / - WA4MIT - / -14 3 Partial capture
07-21 20:10 80m -12 / - HB9EKJ - / -10 2 ✓ Closing fragment
07-21 19:32 40m - / -15 SQ8DIO -12 / - 2 Partial capture
07-21 19:20 20m - / -2 EI4JFB -19 / - 3 ✓ Closing fragment
07-16 21:22 40m - / -12 F1PBZ -10 / - 2 Partial capture
07-16 20:50 80m -12 / - <...> - / -8 2 Partial capture
07-16 20:49 80m -13 / -17 YO4GIY -3 / - 2 Partial capture
07-16 20:47 80m -12 / -18 UA4FKT +17 / -5 5 ✓ Full exchange observed
07-16 20:38 40m - / -13 F4MZI -8 / - 3 Partial capture
07-16 20:18 40m - / +1 SP6ZLT -6 / - 3 Partial capture
07-16 20:17 80m - / - UX7QV +10 / - 7 Partial capture
07-16 20:15 40m - / -11 UA6YW -2 / - 3 Partial capture
07-16 20:12 40m - / -3 OK1DLA -3 / - 4 ✓ Closing fragment
07-16 20:12 40m - / - SM7HWD -10 / - 2 Partial capture
07-16 20:07 40m - / - OK1DLA -4 / - 4 Partial capture
07-15 21:48 40m - / -14 DL6UM 0 / - 2 ✓ Closing fragment
07-15 21:46 40m - / -14 RN6MA -6 / - 2 ✓ Closing fragment
07-15 20:54 40m - / - PD1HBL -22 / - 2 Partial capture
07-15 20:53 40m - / - OE5ROR -13 / - 11 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
195845 -11 1326  IU5TTZ G6MTI IO81
171400 -19 1438  IU5TTZ ON1DGN -08 (x2)
202115 -14 1617  IU5TTZ CT1BFP IM59 (x12)
80m 
UTC    dB Audio  Message
195915  -9  307  CQ IU5TTZ JN53
195930 +14 2335  IU5TTZ SP9UPH JO90
195945 -11  307  CQ IU5TTZ JN53
200030  +0 1707  IU5TTZ YT3PL KN04
204130  +1 2642  IU5TTZ F1PBZ -11
204330  -1 2125  IU5TTZ YO6LM -10 (x2)
204400  +4 1641  IU5TTZ YT3PL KN04
204530 -11  603  IU5TTZ <...> -12
211300 +11 1641  IU5TTZ YT3PL KN04
213645 -18 1005  CQ IU5TTZ JN53                        a1
213700  -8  426  IU5TTZ DO8JB JO32
213715 -14 1005  DO8JB IU5TTZ -16
213800  -7  426  IU5TTZ DO8JB 73
213915 -21 1273  ON3RV IU5TTZ JN53
40m 
UTC    dB Audio  Message
195330 -10  340  IU5TTZ R4ZZ -11
195415 -12  340  R4ZZ IU5TTZ 73
204545 -11  636  <...> IU5TTZ JN53
205030 -18 1250  IU5TTZ EW8AAC -17 (x3)
205530  -9  870  IU5TTZ F5MJN -17 (x6)
201745 -15 1258  IU5TTZ DL3JHK R-08
201915 -20 1258  IU5TTZ DH5BM R-04 (x2)
10m 
UTC    dB Audio  Message
190500 -21 2083  IU5TTZ F5HNQ IN98
115815 -24 1931  IU5TTZ G4PMZ IO91
201815  -3  782  IU5TTZ M0BEW -12 (x5)
202145  -4 1778  IU5TTZ EA8UP -17 (x2)
194830  +0 2559  IU5TTZ CE2SV -16
60m 
UTC    dB Audio  Message
192700 -13 1230  SP9UPH IU5TTZ JN53
192730 -12 1230  SP4AVG IU5TTZ -12 (x2)
192830 -14 1230  CQ IU5TTZ JN53
192915  -6 1059  IU5TTZ LY100RADIO -15
192930 -14 1230  SP4AVG IU5TTZ R-14
193030 -16 1230  ER5GB IU5TTZ JN53
193045 -11 1800  IU5TTZ ER5GB -02
193100 -15 1230  ER5GB IU5TTZ R-01
193115 -12 1800  IU5TTZ ER5GB RR73
193130 -12 1230  ER5GB IU5TTZ 73
193200 -14 1230  CQ IU5TTZ JN53 (x3)
192100 -18 1230  7Z1IS IU5TTZ JN53

Decoder S/N history by band

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