YO5ONK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN16

Receiver-side FT8 activity involving YO5ONK, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-10.

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 86 FT8 messages attributed to YO5ONK as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 20 m (44%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 2 40m · 46 20m · 38

First attributed message: 2026-06-13
Last attributed message: 2026-09-10 06:34 UTC

Observed FT8 message patterns

Attributed sample: 86 messages
Active dates: 15 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -17 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 29.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with YO5ONK in decoded directed-looking exchanges:

3A2MW · Monaco HI8CQ · Dominican Republic HK4T · Colombia YV6BXN · Venezuela PA1GLD · Netherlands PV8AJ · Brazil

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to YO5ONK

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: KN16 · 43 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 393 km (approx.)
Last such locator decoded: 2026-08-25 19:09 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 UTC	Band	YO5ONK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 06:33	40m	-4 / -	VP5/K5UR	- / -	2	Partial capture
08-28 23:05	20m	- / -	YV5WL	-1 / -	4	Partial capture
08-28 23:01	20m	- / -5	HI8CQ	-6 / -	2	✓ Closing fragment
08-28 22:57	20m	- / -14	HK4T	-6 / -	2	✓ Closing fragment
08-28 22:54	20m	- / -15	YV6BXN	0 / -	2	✓ Closing fragment
08-26 07:47	20m	-5 / -	<...>	- / -	7	Partial capture
08-25 19:09	20m	+5 / +7	3A2MW	-5 / -13	5	✓ Full exchange observed
08-20 05:47	40m	-16 / -	PV8AJ	- / -10	2	✓ Closing fragment
07-31 20:30	20m	-16 / -	D2ACE	- / -	2	Partial capture
07-30 06:31	20m	- / -	V31DL	-12 / -	2	Partial capture
07-09 10:31	20m	-15 / -	<...>	- / -21	8	Partial capture
07-07 04:21	40m	- / -	SV2BRT	-24 / -	2	Partial capture
07-03 05:33	20m	-18 / -24	SV/AA6PP	-17 / -	5	Partial capture
07-02 21:04	20m	-4 / -	TN8GD	- / -	2	Partial capture
07-02 20:58	20m	-8 / -	TN8GD	- / -	3	Partial capture
07-02 20:52	20m	-2 / -	TN8GD	- / -	2	Partial capture
06-23 17:04	20m	-6 / -	<...>	- / -	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
052400 -12  638  YO5ONK YR50NADIA -14
042130 -24 1692  YO5ONK SV2BRT KN10 (x2)
073100 -19 1539  YO5ONK PA1GLD RR73
054715 -14 1735  PV8AJ YO5ONK R-10 (x2)
063030  -4 2934  <J38DX> YO5ONK
063315  -7 2857  VP5/K5UR YO5ONK (x2)

20m

UTC    dB Audio  Message
075000 -10 1280  <...> YO5ONK (x3)
225430  -2 1290  YO5ONK YV6BXN -15 (x2)
225715  -5  354  YO5ONK HK4T -14 (x2)
230115  -1  905  YO5ONK TI5RR -11
230145  -5 1789  YO5ONK HI8CQ -05 (x2)
230515  +3 2183  YO5ONK YV5WL FK60 (x4)
230645  -8 2255  YO5ONK HI8CQ RR73

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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