YO3GNU — 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 YO3GNU, decoded by SO8OO in southeastern Poland. 329 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-13 and 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 329 FT8 messages attributed to YO3GNU as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (72%), followed by 40 m (28%). Most decodes (65%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -6 dB.

Overview

329
Messages attributed
19
UTC dates decoded
49
Active 15-min windows
-6 dB
Estimated median S/N

Bands

40m · 92 20m · 237
First attributed message: 2026-06-13
Last attributed message: 2026-11-05 20:02 UTC

Observed FT8 message patterns

Attributed sample
329 messages
Active dates
19 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-22 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 203.

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 YO3GNU in decoded directed-looking exchanges:

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 YO3GNU

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 · 184 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
651 km (approx.)
Last such locator decoded
2026-11-05 19:48 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 UTCBandYO3GNU S/NCounterpartCounterpart S/NMsgsCapture
11-05 20:00 40m +1 / - YO3OBB - / -1 5 Partial capture
11-05 19:52 40m -4 / - DD3ZZ - / -16 4 Partial capture
11-05 19:49 40m -1 / - TA1MB - / - 2 ✓ Closing fragment
11-05 19:49 40m - / - SV1EKI -9 / - 6 Partial capture
11-05 19:47 40m - / - DG5PW +3 / - 3 Partial capture
10-29 09:32 40m -16 / - IU0KNS - / - 4 Partial capture
09-28 15:03 40m - / - DL6EL +4 / - 6 Partial capture
09-28 15:00 40m +6 / -6 SP9EVL -6 / -10 4 ✓ Full exchange observed
09-28 14:59 40m +10 / +6 PE9JAN -6 / -11 7 ✓ Full exchange observed
09-13 16:54 40m +7 / -3 HA2NON +4 / -3 4 ✓ Full exchange observed
09-06 15:03 40m +9 / - UR4QRT - / -18 3 ✓ Closing fragment
09-06 14:56 40m +10 / - SV1CDU - / -21 2 ✓ Closing fragment
09-06 14:52 40m +12 / +1 DL1ZAX -10 / -15 4 ✓ Full exchange observed
09-06 10:38 40m - / - HA3HZ -4 / - 4 Partial capture
09-06 10:28 40m -2 / -6 UR5WBO -7 / -23 4 ✓ Full exchange observed
08-28 15:33 20m +3 / - BH4ECL - / -13 3 ✓ Closing fragment
08-28 15:31 20m +6 / - S57BTI - / -15 2 ✓ Closing fragment
08-28 15:29 20m +4 / - DL5HBF - / -15 4 Partial capture
08-28 15:24 20m -4 / +8 YO3NSS -4 / -2 4 Partial capture
08-11 10:17 20m - / -18 PD0RDD -6 / - 2 ✓ Closing fragment
08-11 10:13 20m - / 0 DL7FE -17 / - 3 ✓ Closing fragment
08-11 10:07 20m - / - PD0RDD -8 / - 4 Partial capture
08-11 10:05 20m -7 / - UR5EJ - / -13 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
194945  +0  462  TA1MB YO3GNU RRR
195000  -9 2304  YO3GNU SV1EKI KM18
195015  -2  461  TA1MB YO3GNU 73
195030  -7 2304  YO3GNU SV1EKI KM18 (x3)
195215  -5  462  DD3ZZ YO3GNU -16 (x4)
200045  +3  462  YO3OBB YO3GNU -01 (x5)
20m 
UTC    dB Audio  Message
152515  -3 2497  YO3NSS YO3GNU -02
152545  -5 2496  CQ YO3GNU KN24
152600  -4  882  YO3GNU YO3NSS R+08
152615  -1 2496  CQ YO3GNU KN24
152915  +4  497  DL5HBF YO3GNU -15 (x4)
153115  +6  497  YO3NSS YO3GNU RR73
153145  +4  497  S57BTI YO3GNU -15 (x2)
153245  +5  497  CQ YO3GNU KN24
153315  +4  497  BH4ECL YO3GNU -13 (x3)

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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