TI5CDA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Costa Rica

Receiver-side FT8 activity involving TI5CDA, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-09-11.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 28 FT8 messages attributed to TI5CDA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (96%), followed by 20 m (4%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

28
Messages attributed
2
UTC dates decoded
3
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-07-26
Last attributed message: 2026-09-11 04:28 UTC

Observed FT8 message patterns

Attributed sample
28 messages
Active dates
2 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -10 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 1.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

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 UTCBandTI5CDA S/NCounterpartCounterpart S/NMsgsCapture
09-11 04:37 80m - / -15 DL1JEL -1 / - 4 Partial capture
09-11 04:34 80m - / -15 DL1JEL +3 / - 2 Partial capture
09-11 04:30 80m - / -12 DG1KPC -2 / - 2 Partial capture
09-11 04:27 80m - / - IT9DVZ -21 / - 5 Partial capture
09-11 04:27 80m - / - DL2RPN -10 / - 2 Partial capture
09-11 04:25 80m -19 / -14 IT9JNR -11 / - 6 ✓ Closing observed
09-11 04:25 80m -22 / -11 ON6AA +3 / -6 6 ✓ Full exchange observed
09-11 04:24 80m - / - I2RFJ -1 / - 5 Partial capture
09-11 04:24 80m -18 / -3 KZ7Y -23 / - 4 ✓ Closing observed
09-11 04:24 80m - / - LY1DY -4 / - 3 Partial capture
09-11 04:24 80m - / -16 OE5GQQ -2 / - 3 Partial capture
09-11 04:23 80m -19 / -16 9A4BL -10 / -11 4 ✓ Full exchange observed
09-11 04:22 80m - / - DL1JEL -5 / - 9 Partial capture
09-11 04:22 80m - / - HA2EOA -2 / - 6 Partial capture
09-11 04:21 80m -15 / - W5KMK - / -2 2 ✓ Closing fragment
09-11 04:19 80m - / - PA3KUS -13 / - 7 Partial capture
09-11 04:19 80m - / -15 DK7ZT 0 / - 5 Partial capture
09-11 04:18 80m - / - DG4BRT -19 / - 3 Partial capture
09-11 04:18 80m - / - IK6GTF -18 / - 4 Partial capture
09-11 04:18 80m -12 / -11 IZ2AMW -11 / -8 7 ✓ Full exchange observed
09-11 04:18 80m - / -14 ON1JP -24 / - 2 Partial capture
09-11 04:18 80m - / - ON6AA -1 / - 2 Partial capture
09-11 04:17 80m -13 / -8 DL4ME +9 / -5 8 ✓ Full exchange observed
09-11 04:16 80m -13 / -9 ON8DM -10 / -11 5 ✓ Full exchange observed
09-11 04:16 80m - / - PA3BUD -10 / - 2 Partial capture
09-11 04:16 80m -13 / -8 F5UTN -14 / -12 14 ✓ Full exchange observed
09-11 04:15 80m -12 / -18 G0OYQ -8 / -10 8 ✓ Full exchange observed
09-11 04:15 80m -10 / -18 IK5MDF -4 / - 4 ✓ Closing observed
09-11 04:15 80m - / - EU6O -7 / - 6 Partial capture
09-11 04:14 80m - / - CT2HEX -19 / - 3 Partial capture
09-11 04:14 80m - / -15 DK7ZT -1 / - 5 Partial capture
09-11 04:14 80m - / - LY1DY 0 / - 9 Partial capture
09-11 04:12 80m -12 / -13 Z62NS -13 / -10 4 ✓ Full exchange observed
09-11 04:12 80m - / - DJ2KP +1 / - 16 Partial capture
09-11 04:09 80m - / - ON6AA -5 / - 3 Partial capture
09-11 04:08 80m -12 / - Z62NS - / -9 2 Partial capture
08-31 04:02 80m - / - HA3HX 0 / - 3 Partial capture
08-28 00:51 80m - / - TF3VS -2 / - 4 Partial capture
08-23 05:01 40m - / -19 PA3BUD -2 / - 2 Partial capture
08-23 04:57 40m - / - PA3BUD -4 / - 2 Partial capture
07-26 06:31 20m - / - UA3RRT -23 / - 2 Partial capture
07-26 06:26 20m - / - PD2ARI -17 / - 4 Partial capture
07-26 06:24 20m - / - IU0TPA -6 / - 3 Partial capture
07-26 06:24 20m - / - DL6RS -4 / - 2 Partial capture
07-26 06:24 20m - / - IK4LZH -10 / - 2 Partial capture
07-26 06:23 20m - / - HB9RLZ +6 / - 3 Partial capture
07-26 06:23 20m - / - EA3CU -7 / - 12 Partial capture
07-26 06:23 20m - / - UA6HGM -17 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
042830 -19 2301  TI5CDA IT9DVZ JM78
042830  +3 2594  TI5CDA I2RFJ JN45
042845 -18 2301  K4JJL TI5CDA 73
042900 -24 2301  TI5CDA IT9DVZ JM78
042900  +1 2594  TI5CDA I2RFJ JN45
043000 -20 2301  TI5CDA IT9DVZ JM78 (x2)
043030  -2  755  TI5CDA DG1KPC JO30 (x2)
043400  +3  751  TI5CDA DL1JEL R-15 (x6)
40m
UTC    dB Audio  Message
045730  -5 1189  TI5CDA PA3BUD JO21 (x2)
045800 -15 1679  TI5CDA MM0KQC -02
050100  -1 1190  TI5CDA PA3BUD -19 (x2)
20m
UTC    dB Audio  Message
062615 -10 1320  TI5CDA EA3CU JN11
062645 -14 1292  TI5CDA PD2ARI JO22
062645 -14 1320  TI5CDA EA3CU JN11
062715 -16 1292  TI5CDA PD2ARI JO22
062745  -5 1081  TI5CDA EA3CU JN11
062815 -15 1292  TI5CDA PD2ARI JO22
062815  -3 1081  TI5CDA EA3CU JN11
062845 -23 1292  TI5CDA PD2ARI JO22
062845  -3 1081  TI5CDA EA3CU JN11 (x4)
063145 -24 1718  TI5CDA UA3RRT LO03
063215 -22 2197  TI5CDA IV3BHD JN65
063245 -22 1719  TI5CDA UA3RRT LO03
10m
UTC    dB Audio  Message
090700 -21 1798  TI5CDA R6FMK LN05

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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