YH1AU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia Most frequent locator attributed to this token: OI33

Receiver-side FT8 activity involving YH1AU, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-12.

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 1 FT8 messages attributed to YH1AU 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

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

Bands

20m · 1
First attributed message: 2026-07-12
Last attributed message: 2026-07-12 15:11 UTC

Observed FT8 message patterns

Attributed sample
1 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 YH1AU in decoded directed-looking exchanges:

Most frequent locator attributed to YH1AU

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
OI33
SO8OO receiver locator
KN09VW
Locator-centre separation
10,219 km (approx.)
Last such locator decoded
2026-07-12 15:11 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 UTCBandYH1AU S/NCounterpartCounterpart S/NMsgsCapture
07-12 23:33 40m - / - F4BYA -2 / - 3 Partial capture
07-12 15:26 20m - / -12 DK7UY -12 / - 6 Partial capture
07-12 15:23 20m - / - RX9WM -16 / - 2 ✓ Closing fragment
07-12 15:14 20m - / -15 RX6DY -21 / - 5 ✓ Closing fragment
07-12 15:12 20m - / - IU6JMK -20 / - 3 Partial capture
07-12 15:01 20m - / -5 ON6AA +1 / - 3 ✓ Closing fragment
07-12 14:53 20m - / - ON6AA -10 / - 2 Partial capture
07-12 14:43 20m - / - RM8W -16 / - 2 Partial capture
07-12 14:42 20m - / -9 RC9WC -14 / - 2 Partial capture
07-12 13:47 20m - / -13 UB4CJS -11 / - 2 Partial capture
07-12 09:32 20m - / - PD0PJF -7 / - 4 Partial capture
07-12 08:46 20m - / -18 IW4DNI -10 / - 6 Partial capture
07-12 08:41 20m - / - DL2YBG -12 / - 3 Partial capture
07-12 08:41 20m - / -20 DL1FSK -6 / - 4 ✓ Closing fragment
07-12 08:34 20m - / -13 HB9TIH -15 / - 7 Partial capture
07-12 07:38 20m - / -14 F4MUD -21 / - 2 ✓ Closing fragment
07-11 15:44 20m - / - RW9AD -22 / - 2 ✓ Closing fragment
07-11 15:33 20m - / - IT9JNR -22 / - 2 ✓ Closing fragment
07-11 15:33 20m - / -19 EA5ET -9 / - 3 ✓ Closing fragment
07-11 14:58 20m - / -20 F4FSY -12 / - 2 Partial capture
07-11 14:35 20m - / - DL1RB -14 / - 5 Partial capture
07-11 14:17 20m - / - F5TLZ -13 / - 2 Partial capture
07-11 14:11 20m - / -20 R6FFB -14 / - 2 Partial capture
07-11 13:54 20m - / - PD1HPB -15 / - 7 Partial capture
07-11 13:53 20m - / - OE9GWV -6 / - 2 Partial capture
07-11 13:48 20m - / -10 R9BT -16 / - 2 ✓ Closing fragment
07-11 13:44 20m - / - DK9ZQ -19 / - 3 Partial capture
07-11 13:43 20m - / - DF4TC -20 / - 2 Partial capture
07-10 23:22 40m - / -15 PI4DX 0 / - 2 ✓ Closing fragment
07-10 13:39 20m - / - PD7JLP -16 / - 4 Partial capture
07-10 12:13 20m - / - RW4HCU -15 / - 3 Partial capture
07-10 08:07 20m - / -16 EA7ALL -17 / - 5 ✓ Closing fragment
07-10 00:18 20m - / -5 CT3IQ -13 / - 4 Partial capture
07-10 00:00 20m - / -16 EA1IOK -6 / - 2 Partial capture
07-09 23:23 40m - / - F4BYA 0 / - 4 Partial capture
07-09 23:23 40m - / -16 IK4LZH +2 / - 4 ✓ Closing fragment
07-09 23:17 40m - / -22 F4GTB -17 / - 5 Partial capture
07-09 23:17 40m - / - F4BYA +2 / - 4 Partial capture
07-09 23:16 40m - / - PC2J -10 / - 2 Partial capture
07-09 23:16 40m - / -5 WP4U -16 / - 4 ✓ Closing fragment
07-09 23:13 40m - / - F4BYA 0 / - 3 Partial capture
07-09 23:03 40m - / - DG1KPC +5 / - 2 Partial capture
07-09 23:02 40m - / - F4BYA -1 / - 6 Partial capture
07-09 23:01 40m - / -26 IZ8DBJ -10 / - 3 ✓ Closing fragment
07-09 22:54 40m - / - F4BYA -3 / - 3 Partial capture
07-09 20:11 40m - / - G7FPE -14 / - 2 Partial capture
07-09 20:08 40m - / -12 UA1AJY -23 / - 2 Partial capture
07-09 20:04 40m - / - PA1GLD -8 / - 2 ✓ Closing fragment
07-09 20:02 40m - / -24 ER3ZW -10 / - 3 Partial capture
07-09 19:55 40m - / - 9A7BB -11 / - 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
231915 -15 1698  YH1AU F4GTB R-22 (x2)
232315  +1  438  YH1AU IK4LZH JN54
232315  -5 2879  YH1AU F4BYA JN19
232345  +2  438  YH1AU IK4LZH JN54
232345  +0 2878  YH1AU F4BYA JN19
232415  +4  438  YH1AU IK4LZH R-16
232415  +0 2878  YH1AU F4BYA JN19
232445  +3  438  YH1AU IK4LZH 73
232445  +4 2878  YH1AU F4BYA JN19
232215  +0 2256  YH1AU PI4DX -15 (x2)
233330  +0 2983  YH1AU F4BYA JN19 (x3)
20m 
UTC    dB Audio  Message
151230 -20 1745  YH1AU IU6JMK JN63 (x2)
151400 -23 1829  YH1AU RX6DY -15 (x5)
152300 -15 1750  YH1AU RX9WM LO74 (x2)
152600 -12 1744  YH1AU DK7UY JO44 (x6)
10m 
UTC    dB Audio  Message
044945 -20 1559  YH1AU RN6MA -07

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