IU5TTB — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IU5TTB, decoded by SO8OO in southeastern Poland. 88 related FT8 messages, 23 CQ messages, observed on 40m, 20m, across 7 UTC dates. Heard between 2026-05-26 and 2026-08-24.

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

88
Related messages
23
CQ messages
7
UTC dates heard
-9 dB
Mean decoder S/N

Bands

40m 20m
First seen: 2026-05-26
Last seen: 2026-08-24 14:40 UTC

Frequent QSO partners observed at SO8OO

Stations IU5TTB worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by IU5TTB

Approximate centre of JN53, decoded 2026-08-24 16:40 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 UTCBandIU5TTB S/NCounterpartCounterpart S/NMsgsCapture
08-24 16:38 40m -16 / -10 DG1KFR +1 / -12 4 ✓ Full exchange observed
08-24 16:33 40m -15 / - 2W0YOX -17 / -11 3 ✓ Closing observed
08-24 16:31 40m -16 / -15 RV3YN -1 / -14 5 ✓ Full exchange observed
08-24 16:24 40m -15 / - UT5ZC - / - 2 Partial capture
08-23 16:35 40m -18 / - GM3AND - / -18 2 Partial capture
08-23 00:39 40m -16 / - EB2EMZ - / -13 2 Partial capture
08-23 00:37 40m -23 / - UN7PPV - / -24 2 ✓ Closing fragment
08-23 00:37 40m -24 / -7 EA5HM -15 / - 5 ✓ Closing observed
08-23 00:33 40m - / - ON4MAP -24 / - 2 Partial capture
08-23 00:31 40m -16 / +2 SV3AUW -16 / -8 4 ✓ Full exchange observed
08-20 10:17 40m - / -13 HA1DUQ -16 / - 2 ✓ Closing fragment
08-20 10:13 40m - / -1 HA3GO -9 / - 2 ✓ Closing fragment
05-27 10:45 20m - / -16 DF6NL -10 / - 2 ✓ Closing fragment
05-27 10:43 20m - / -15 G0RVY +4 / - 3 ✓ Closing fragment
05-27 10:37 20m - / 0 ES2AJ +9 / - 3 ✓ Closing fragment
05-27 10:35 20m - / -13 UR5EPZ -10 / - 2 ✓ Closing fragment
05-27 10:33 20m - / -9 G5CTH -3 / - 3 Partial capture
05-26 16:37 40m - / - UT1UW -6 / - 4 Partial capture
05-26 16:37 40m - / -15 RT6Z -10 / - 3 ✓ Closing fragment
05-26 16:34 40m - / - UR5ROY -14 / - 2 ✓ Closing fragment
05-26 16:29 40m -8 / -12 SN1A -3 / -3 3 ✓ Full exchange observed
05-26 16:17 40m - / -21 HF5A -11 / - 4 ✓ Closing fragment
05-26 16:13 40m -16 / - DM3PT - / -14 2 ✓ Closing fragment
05-26 16:12 40m -17 / -14 DL5KBG -10 / - 3 ✓ Closing observed
05-26 16:10 40m -10 / +1 S58MU +11 / -4 5 ✓ Full exchange observed
05-26 16:09 40m -10 / - I5SFU - / -1 2 ✓ Closing fragment
05-26 16:06 40m -9 / - E70SZ +2 / - 4 ✓ Closing observed
05-26 16:03 40m - / +4 SX20RCK -14 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
163215 -15 1539  RV3YN IU5TTB RR73
163230  +4 1991  IU5TTB RV3YN 73
163245 -13 1539  CQ IU5TTB JN53
163315 -14 1539  2W0YOX IU5TTB -11 (x2)
163400 -17 1540  IU5TTB 2W0YOX 73
163730  -2  576  IU5TTB DF5DY 73
163745 -13 1539  CQ IU5TTB JN53
163815 -16 1539  DG1KFR IU5TTB -12
163830  +1  438  IU5TTB DG1KFR R-10
163845 -15 1539  DG1KFR IU5TTB RR73
163900  +1  438  IU5TTB DG1KFR 73
163915 -12 1539  CQ IU5TTB JN53 (x3)
20m 
UTC    dB Audio  Message
103530  -9 1576  IU5TTB UR5EPZ R-13 (x2)
103700  +5 1576  IU5TTB ES2AJ +00 (x3)
104300  +6  599  IU5TTB G0RVY JO01 (x3)
104530  -8  895  IU5TTB DF6NL R-16
104530  -3 2905  IU5TTB G5CTH IO91
104600 -12  895  IU5TTB DF6NL 73
195630 -18 1575  CQ IU5TTB JN53 (x2)
162430 -18 1131  IU5TTB YO4GIY -19
002830 -24  499  IU5TTB <...> -18

Decoder S/N history by band

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