YB3CUG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia Most frequent locator attributed to this token: OI62

Receiver-side FT8 activity involving YB3CUG, decoded by SO8OO in southeastern Poland. 4 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-19.

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 4 FT8 messages attributed to YB3CUG as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

4
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

20m · 4
First attributed message: 2026-07-19
Last attributed message: 2026-07-19 16:41 UTC

Observed FT8 message patterns

Attributed sample
4 messages
Active dates
1 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with YB3CUG in decoded directed-looking exchanges:

Most frequent locator attributed to YB3CUG

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
OI62
SO8OO receiver locator
KN09VW
Locator-centre separation
10,731 km (approx.)
Last such locator decoded
2026-07-19 16:38 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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 UTCBandYB3CUG S/NCounterpartCounterpart S/NMsgsCapture
08-09 16:28 40m - / -14 UC6D -8 / - 2 ✓ Closing fragment
08-09 15:54 40m - / -13 S59A +1 / - 2 ✓ Closing fragment
07-29 15:37 20m - / - UT5MD +2 / - 6 Partial capture
07-29 15:26 20m - / - PD1DTH -10 / - 2 Partial capture
07-29 15:26 20m - / -18 F1PBZ -6 / - 2 ✓ Closing fragment
07-29 15:16 20m - / -15 F5SPJ -1 / - 7 Partial capture
07-29 15:15 20m - / -19 UT5MB -4 / - 2 ✓ Closing fragment
07-29 14:59 20m - / - GM3AND -7 / - 8 Partial capture
07-29 14:53 20m - / - M9VVE -3 / - 7 Partial capture
07-29 14:45 20m - / - M9VVE -6 / - 8 Partial capture
07-29 14:27 20m - / -1 F4ESO -17 / - 4 Partial capture
07-29 14:18 20m - / -12 TK4QP -12 / - 2 ✓ Closing fragment
07-25 17:36 20m - / - EA3DKP -2 / - 7 Partial capture
07-25 17:26 20m - / -9 DK0RST -10 / - 2 Partial capture
07-25 17:18 20m - / - SP5JMA +1 / - 5 ✓ Closing fragment
07-25 17:18 20m - / - RZ3ZY -12 / - 3 Partial capture
07-25 17:09 20m - / - R7TQ -2 / - 2 Partial capture
07-25 16:56 20m - / - YO3AIO -23 / - 2 Partial capture
07-25 16:51 20m - / -8 CN2DX 0 / - 2 ✓ Closing fragment
07-25 16:49 20m - / -14 IU3UJO -6 / - 2 Partial capture
07-25 16:47 20m - / -14 YO4GIY -4 / - 2 ✓ Closing fragment
07-25 16:39 20m - / -11 EA8AT -19 / - 2 ✓ Closing fragment
07-25 16:38 20m - / -20 EA2DYB -14 / - 2 Partial capture
07-25 13:48 20m - / - RA4ABH -4 / - 2 Partial capture
07-19 16:40 20m - / -12 E77FN -14 / - 4 ✓ Closing fragment
07-19 16:17 20m - / -13 R4FDD -10 / - 2 Partial capture
07-17 17:24 20m - / -18 IK4TVP -6 / - 2 Partial capture
07-17 17:22 20m - / -10 DL7FE -20 / - 2 Partial capture
07-17 17:09 20m - / -6 F4MUD -4 / - 4 ✓ Closing fragment
07-17 17:03 20m - / -11 F4IVG -5 / - 3 Partial capture
07-17 17:01 20m - / -14 F4EDB -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
163045  -3  587  YB3CUG IK8HJC RR73
163930 -10 2616  YB3CUG IQ4JO JN63
155415  +4 1895  YB3CUG S59A -13 (x2)
162845  -8 1464  YB3CUG UC6D R-14 (x2)
20m 
UTC    dB Audio  Message
151815  +4  594  YB3CUG F5SPJ -15 (x4)
152600  -9 2614  YB3CUG F1PBZ -18
152630 -13 2282  YB3CUG PD1DTH JO32
152630  -3 2614  YB3CUG F1PBZ RR73
152700  -8 2282  YB3CUG PD1DTH JO32 (x2)
153700  -4  532  YB3CUG UT5MD KN69 (x6)

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