YO9AYN — 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: KN24

Receiver-side FT8 activity involving YO9AYN, decoded by SO8OO in southeastern Poland. 176 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-10-16.

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 176 FT8 messages attributed to YO9AYN as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 20 m (32%) and 80 m (31%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was +3 dB.

Overview

176
Messages attributed
7
UTC dates decoded
20
Active 15-min windows
+3 dB
Estimated median S/N

Bands

80m · 54 40m · 66 20m · 56
First attributed message: 2026-07-12
Last attributed message: 2026-10-16 17:30 UTC

Observed FT8 message patterns

Attributed sample
176 messages
Active dates
7 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-16 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 120.

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 YO9AYN in decoded directed-looking exchanges:

Most frequent locator attributed to YO9AYN

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
KN24 · 78 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
651 km (approx.)
Last such locator decoded
2026-10-16 17:30 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 UTCBandYO9AYN S/NCounterpartCounterpart S/NMsgsCapture
10-16 17:29 40m +7 / - JT1DN - / - 3 Partial capture
10-16 17:21 40m +7 / - JY5IB - / -9 3 ✓ Closing fragment
10-12 19:06 80m +6 / +2 YO5QDI +6 / +8 5 ✓ Full exchange observed
10-12 19:06 80m +8 / +2 UR3LM +9 / +9 5 ✓ Full exchange observed
10-12 19:05 80m +8 / -2 GW4HZA -4 / -11 5 ✓ Full exchange observed
10-12 19:01 80m +10 / +5 YO8CRU +1 / +9 5 ✓ Full exchange observed
10-12 19:00 80m +5 / -5 UD8D -7 / -7 5 ✓ Full exchange observed
09-30 19:35 80m -3 / - CT7AIU - / -6 2 ✓ Closing fragment
09-30 19:33 80m -2 / - EA8DO - / -2 2 Partial capture
09-30 19:28 80m +6 / - UK8FCM - / - 4 Partial capture
09-30 19:25 80m +2 / - UN0GY - / - 2 Partial capture
09-30 19:23 80m +2 / -10 G4DBW -8 / -8 4 ✓ Full exchange observed
09-30 19:20 80m +4 / - R4FV - / -4 2 ✓ Closing fragment
09-30 19:19 80m +8 / - DL0RDG - / -7 2 ✓ Closing fragment
09-30 19:18 80m +5 / - UA6EU - / -10 3 ✓ Closing fragment
09-30 19:16 80m +6 / - EI7BFB - / - 2 Partial capture
09-30 19:11 80m +10 / - UN0GY - / -25 6 Partial capture
09-30 19:08 80m +10 / - PJ2/W4IPC - / -11 3 Partial capture
09-30 19:06 80m +7 / - RA2FCF - / +8 3 ✓ Closing fragment
09-30 19:04 80m -4 / - HB9MXY - / - 3 Partial capture
08-26 17:35 20m -13 / - RI1FJL - / - 5 Partial capture
08-26 17:29 20m -15 / - RI1FJL - / - 7 Partial capture
08-26 17:14 20m -14 / - RI1FJL - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
172130  +5 1567  JY5IB YO9AYN KN24 (x3)
172245  +1  384  YO9AYN OH3OJ -12
172300  +6 1568  JT1DN YO9AYN KN24
172430 +10 1568  R7DX YO9AYN RR73
172900  +8 1567  JT1DN YO9AYN KN24 (x3)
80m 
UTC    dB Audio  Message
190515  -3  489  YO9AYN GW4HZA -02
190530  +8 1030  GW4HZA YO9AYN R-11
190545  -5  489  YO9AYN GW4HZA RR73
190600  +7 1030  GW4HZA YO9AYN 73
190615  +7 1030  YO9AYN UR3LM KN89
190630  +8 1030  UR3LM YO9AYN +09
190645  +6 1640  YO9AYN YO5QDI KN17
190645 +10 1030  YO9AYN UR3LM R+02
190700  +9 1030  UR3LM YO9AYN RR73
190715  +9 1030  YO9AYN UR3LM 73
190730  +6 1030  YO5QDI YO9AYN +08
190745  +8 1640  YO9AYN YO5QDI R+02
190745  +7 1031  YO9AYN OE5ABL -04
190800  +7 1030  YO5QDI YO9AYN RR73
190815  +4 1641  YO9AYN YO5QDI 73
20m 
UTC    dB Audio  Message
171415 -15 2003  RI1FJL YO9AYN KN24 (x15)

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

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