YB2SLF — 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: Indonesia

Receiver-side FT8 activity involving YB2SLF, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-06-19.

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 8 FT8 messages attributed to YB2SLF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (75%), followed by 10 m (25%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

20m · 6 10m · 2

First attributed message: 2026-06-11
Last attributed message: 2026-06-19 15:17 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 3 UTC dates
Estimated median S/N: -20 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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 YB2SLF in decoded directed-looking exchanges:

ON6AA · Belgium

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	YB2SLF S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 20:06	40m	- / -	UW5ZM	-8 / -	2	Partial capture
11-05 20:00	40m	- / -	HA8CE	-3 / -	3	Partial capture
11-05 19:23	40m	- / -21	ON6AA	-2 / -	4	✓ Closing fragment
11-05 19:15	40m	- / -26	UW5ZM	-10 / -	5	Partial capture
11-05 19:14	40m	- / -	F4MTS	+4 / -	4	Partial capture
11-05 19:13	40m	- / -	ON6AA	+4 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
191900  -9  358  YB2SLF UW5ZM R-26 (x3)
192345  -4 1072  YB2SLF ON6AA JO11 (x4)
194815 -10 1737  YB2SLF GJ0KYZ +10
200000  -2 2678  YB2SLF HA8CE KN06 (x3)
200600  -7  358  YB2SLF UW5ZM KN57 (x4)

CW

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

Explore CW reception at SO8OO

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