YB4HVS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia Most frequent locator attributed to this token: OI27

Receiver-side FT8 activity involving YB4HVS, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-13.

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 2 FT8 messages attributed to YB4HVS as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

2
Messages attributed
1
UTC dates decoded
2
Active 15-min windows
-
S/N pattern not inferred

Bands

40m · 2
First attributed message: 2026-09-13
Last attributed message: 2026-09-13 21:19 UTC

Observed FT8 message patterns

Attributed sample
2 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 YB4HVS in decoded directed-looking exchanges:

Most frequent locator attributed to YB4HVS

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
OI27
SO8OO receiver locator
KN09VW
Locator-centre separation
9,736 km (approx.)
Last such locator decoded
2026-09-13 21:07 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 UTCBandYB4HVS S/NCounterpartCounterpart S/NMsgsCapture
09-13 21:21 40m - / -23 EA4II -12 / - 2 ✓ Closing fragment
09-13 21:17 40m - / -14 EX7CQ 0 / - 2 ✓ Closing fragment
08-27 23:06 40m - / -10 CT2HEX -8 / - 4 Partial capture
08-27 22:58 40m - / -16 CN8NS -3 / - 2 ✓ Closing fragment
08-21 23:31 40m - / -17 ON3ABR +6 / - 2 ✓ Closing fragment
08-21 23:28 40m - / -16 IW1GB -7 / - 2 Partial capture
08-21 23:23 40m - / -18 EA1AUO -12 / - 2 Partial capture
08-21 23:21 40m - / -22 IZ8DBJ -4 / - 3 ✓ Closing fragment
08-20 23:10 40m - / -10 F4ENK +4 / - 4 ✓ Closing fragment
08-20 23:09 40m - / - MI7XHT -10 / - 2 Partial capture
08-20 23:08 40m - / -8 F5RRS +8 / - 7 ✓ Closing fragment
08-20 23:07 40m - / -6 PD0IFI -2 / - 2 ✓ Closing fragment
08-20 23:06 40m - / - OT8T -7 / - 5 Partial capture
08-20 23:04 40m - / - PD0IFI +9 / - 2 Partial capture
08-20 23:02 40m - / - PD0WC +1 / - 3 Partial capture
08-20 23:01 40m - / - PA1PXL -3 / - 2 Partial capture
08-13 22:58 40m - / - F4ENK -2 / - 2 Partial capture
08-13 22:55 40m - / -15 R5AV -9 / - 3 ✓ Closing fragment
07-08 22:29 40m - / -16 PD2TX -14 / - 2 ✓ Closing fragment
07-08 22:22 40m - / -24 TM40TFR -8 / - 3 Partial capture
07-07 23:13 40m - / -14 UA3PAB -8 / - 3 ✓ Closing fragment
07-07 23:04 40m - / -19 GB13COL -20 / - 2 Partial capture
07-07 22:55 40m - / -18 R2BQM -18 / - 2 Partial capture
07-06 23:20 40m - / - DK2LG -4 / - 4 Partial capture
07-06 23:11 40m - / -10 IV3KQE -9 / - 4 ✓ Closing fragment
07-06 22:54 40m - / -15 M0MLS -14 / - 2 ✓ Closing fragment
07-06 22:53 40m - / -11 9A3AUH -10 / - 2 ✓ Closing fragment
07-06 22:46 40m - / - CT1BWU -22 / - 2 Partial capture
07-06 22:45 40m - / -17 LZ3HG -18 / - 2 ✓ Closing fragment
07-05 23:18 40m - / -21 PI4DX +1 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
225900  -4 2093  YB4HVS CN8NS RR73
230600  -9  887  YB4HVS CT2HEX R-10 (x4)
214545 -10 1924  YB4HVS G0GFC IO92
210730 -24 1467  CQ YB4HVS OI27
211700  -1 1715  YB4HVS EX7CQ R-14 (x2)
211900 -24 1461  SV1EAG YB4HVS -20
212145 -14 2059  YB4HVS EA4II R-23 (x2)
212345 -24 1858  YB4HVS R7ZY KN98
223930 -10  597  YB4HVS EA1KCU IN62
224830 -12 1589  YB4HVS MI7XHT IO64

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