ON5UK — 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: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON5UK, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-27 and 2026-10-29.

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 17 FT8 messages attributed to ON5UK as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (41%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 7 40m · 10

First attributed message: 2026-10-27
Last attributed message: 2026-10-29 19:51 UTC

Observed FT8 message patterns

Attributed sample: 17 messages
Active dates: 2 UTC dates
Estimated median S/N: -7 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 3, 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 ON5UK in decoded directed-looking exchanges:

ON3ANY · Belgium ×2 OA4ENG · Peru ON8LX · Belgium UN0GY · Kazakhstan

Most frequent locator attributed to ON5UK

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: JO10 · 10 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,335 km (approx.)
Last such locator decoded: 2026-10-29 19:51 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	ON5UK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-29 19:51	40m	-4 / -	ON7AMI	- / -	2	Partial capture
10-29 16:20	40m	- / -14	UA4FEN	-8 / -	2	Partial capture
10-29 16:18	40m	-6 / -	UN0GY	- / -18	4	✓ Closing fragment
10-27 06:47	80m	- / -	IZ2EWN	-11 / -	3	Partial capture
10-27 06:44	80m	-7 / +3	ON3ANY	-9 / -	10	✓ Closing observed
10-27 06:38	40m	-15 / -	OA4ENG	- / -14	3	✓ Closing fragment
10-19 07:39	40m	- / +2	ON8LX	-10 / -	2	✓ Closing fragment
10-19 05:57	40m	- / -	EB3JT	-15 / -	3	Partial capture
10-19 05:55	40m	- / -	UA4FKT	-8 / -	3	Partial capture
10-19 05:53	40m	- / -8	ON3ANY	0 / -	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
055830 -15  822  ON5UK EB3JT JN01
073915 -11 1219  ON5UK ON8LX +02 (x2)
063615 -19 2343  OA4ENG ON5UK JO10 (x4)
161830  -4 1051  UN0GY ON5UK JO10 (x4)
162045  -6 1052  ON5UK UA4FEN -14 (x2)
195100  -2  931  ON7AMI ON5UK JO10 (x2)

80m

UTC    dB Audio  Message
064445  -7 2318  ON3ANY ON5UK JO10 (x6)
064730 -11 2351  ON5UK IZ2EWN JN45 (x2)
064830 -11 1018  ON5UK ON3ANY +03
064830 -11 2402  ON5UK IZ2EWN JN45
064900 -11  945  ON5UK ON3ANY RR73
064915  -9 1017  ON3ANY ON5UK 73
064930  -5  944  ON5UK ON3ANY 73

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.

CW

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

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee