YO3AK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN25

Receiver-side FT8 activity involving YO3AK, decoded by SO8OO in southeastern Poland. 48 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-11-05.

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 48 FT8 messages attributed to YO3AK as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 48

First attributed message: 2026-11-05
Last attributed message: 2026-11-05 08:57 UTC

Observed FT8 message patterns

Attributed sample: 48 messages
Active dates: 1 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -15 to -6 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 12.

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 YO3AK in decoded directed-looking exchanges:

YO2LQF · Romania ×2 D2UY · Angola 9A4ZM · Croatia IZ8PPI · Italy SP5EXA · Poland SP6AXW · Poland TA3F · Asiatic Turkey

Most frequent locator attributed to YO3AK

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: KN25 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 549 km (approx.)
Last such locator decoded: 2026-11-05 08:56 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	YO3AK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 08:56	40m	-12 / -	DL40EUDXF	- / -20	3	Partial capture
11-05 08:52	40m	-5 / -	SP6FME	-13 / 0	4	Partial capture
11-05 08:50	40m	-14 / -	DL40EUDXF	- / -7	3	Partial capture
11-05 08:48	40m	-14 / -	PF40EUDXF	- / -	4	Partial capture
11-05 08:37	40m	-10 / -	UA9XL/P	- / -	2	Partial capture
11-05 08:35	40m	-14 / -	PC40EUDXF	- / -	4	Partial capture
11-05 08:31	40m	-13 / -	VI40EUDXF	- / -	3	Partial capture
11-05 08:08	40m	-15 / -15	SP6FME	-9 / +4	8	Partial capture
11-05 08:08	40m	-10 / -	YO2LQF	- / -16	3	✓ Closing fragment
11-05 08:03	40m	-8 / -1	9A4ZM	-15 / -6	10	✓ Full exchange observed
11-05 08:02	40m	-6 / -	IZ8PPI	- / -6	2	✓ Closing fragment
11-05 07:59	40m	-10 / -13	PF40EUDXF	-7 / -	5	Partial capture
11-05 07:57	40m	-10 / -	PD40EUDXF	- / -9	7	Partial capture
11-05 07:49	40m	-14 / -	TA3F	- / -14	2	✓ Closing fragment
11-05 07:48	40m	-13 / 0	SP5EXA	+8 / +2	5	✓ Full exchange observed
11-04 10:16	10m	- / -13	D2UY	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
083730  -9  795  UA9XL/P YO3AK KN25
084815 -15 2045  PF40EUDXF YO3AK KN25 (x4)
085015 -13 2045  <DL40EUDXF> YO3AK KN25 (x3)
085200 -10 2045  YO3AK SP6FME JO90 (x3)
085345  -5 2045  SP6FME YO3AK +00
085600  -5 2045  DL40EUDXF YO3AK KN25 (x3)

10m

UTC    dB Audio  Message
101630 -11  588  YO3AK D2UY -13 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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