RA3YDA — 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: European Russia Most frequent locator attributed to this token: KO62

Receiver-side FT8 activity involving RA3YDA, decoded by SO8OO in southeastern Poland. 1,448 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 84 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-03.

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 1,448 FT8 messages attributed to RA3YDA as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (44%), followed by 80 m (37%) and 40 m (14%). Most decodes (97%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.

Overview

1,448
Messages attributed
84
UTC dates decoded
282
Active 15-min windows
-6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-09
Last attributed message: 2026-11-03 20:23 UTC

Observed FT8 message patterns

Attributed sample
1,448 messages
Active dates
84 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-15.1 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 140, moderate (-15 to -9 dB) 397, strong (≥ -8 dB) 911.

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.

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 RA3YDA

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
KO62 · 789 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
830 km (approx.)
Last such locator decoded
2026-11-03 20:22 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 UTCBandRA3YDA S/NCounterpartCounterpart S/NMsgsCapture
11-03 20:19 160m -8 / 0 RA3THN +10 / +3 7 ✓ Full exchange observed
11-03 19:29 160m -3 / - R6ZS -24 / -7 6 ✓ Closing observed
11-03 19:04 160m -3 / - UA9KBC - / - 2 Partial capture
11-03 18:58 160m -12 / -3 UB3YFP -10 / -3 3 ✓ Full exchange observed
11-03 18:56 160m -5 / -10 S58T +2 / -5 6 ✓ Full exchange observed
11-03 18:55 160m -8 / +1 RK3AW/P -10 / +4 5 ✓ Full exchange observed
11-03 15:17 80m -6 / - R9CS/P - / - 2 Partial capture
11-03 15:04 80m -23 / - R9CS/P - / - 5 Partial capture
11-03 14:55 80m -8 / - R9CS/P - / - 4 Partial capture
11-03 14:52 80m -18 / - UA0YDB - / - 2 Partial capture
11-03 14:26 160m -20 / - R9CS/P - / -12 3 ✓ Closing fragment
11-02 17:26 160m -7 / - RK9UN - / - 6 Partial capture
11-02 17:19 160m -2 / - RK9UN - / - 6 Partial capture
11-02 17:14 80m -9 / - R9FAI - / - 2 Partial capture
11-02 16:59 160m 0 / - RK9UN - / - 6 Partial capture
11-02 16:04 80m -3 / 0 R3XAZ -22 / -5 5 ✓ Full exchange observed
11-02 16:01 80m -5 / - UA9XL/P - / 0 3 ✓ Closing fragment
11-01 18:20 160m +1 / - R1BED - / -14 3 ✓ Closing fragment
11-01 18:10 80m -9 / -18 UA3LNM +7 / -8 5 ✓ Full exchange observed
11-01 18:08 80m -6 / - R6OV - / - 2 Partial capture
11-01 18:03 160m -6 / - RA3ZK - / - 2 Partial capture
10-31 16:38 160m -2 / - 6W/IK2HKT - / - 2 Partial capture
10-31 16:32 80m -10 / -19 IQ4JO +7 / -4 4 ✓ Full exchange observed
10-31 16:26 80m -9 / - R1BQR -9 / -13 3 Partial capture
10-31 15:44 160m -5 / - R6UA - / - 2 Partial capture
10-30 18:22 160m -15 / - RX9JY - / -26 5 Partial capture
10-30 17:48 160m -11 / - RZ3DZ -23 / 0 5 ✓ Closing observed
10-30 17:43 160m -13 / - RD1A/P - / - 3 Partial capture
10-28 16:52 80m - / -14 RW4LNL -17 / - 2 ✓ Closing fragment
10-28 16:08 80m -20 / - R6FGF - / -14 2 ✓ Closing fragment
10-28 16:06 80m -24 / -6 R6ZAJ -19 / -3 4 ✓ Full exchange observed
10-26 18:30 40m - / -20 R6ACD -5 / - 3 Partial capture
10-26 17:57 160m -21 / - R3DFS - / -13 3 ✓ Closing fragment
10-26 17:21 160m -18 / - RZ0SW - / - 2 Partial capture
10-26 17:09 160m -14 / - UB3ANV - / -11 2 ✓ Closing fragment
10-26 17:05 160m -11 / - R6PAG - / -12 3 ✓ Closing fragment
10-26 15:22 160m -22 / - UA6LET - / -6 2 ✓ Closing fragment
10-25 15:52 160m -3 / - RC2DT - / - 2 Partial capture
10-25 15:42 80m -12 / - UA0YDB - / - 2 Partial capture
10-25 15:32 80m -6 / - UA0YDB - / - 5 Partial capture
10-25 14:31 40m -8 / - RA0SCZ - / -8 3 ✓ Closing fragment
10-25 14:29 40m -15 / -3 RA3UEV -18 / -5 3 ✓ Full exchange observed
10-25 14:25 40m - / - R1TET -21 / - 3 ✓ Closing fragment
10-25 14:24 40m -10 / - RA6MQ -14 / -1 3 ✓ Closing observed
10-25 14:22 40m -11 / -6 R1QF -15 / - 2 ✓ Closing observed
10-24 16:32 80m - / +8 R1TET -12 / - 6 Partial capture
10-24 16:30 80m +4 / - UA9LT - / -5 3 ✓ Closing fragment
10-24 15:49 160m -14 / - RW6MZ - / - 3 Partial capture
10-23 17:48 80m -8 / - R2EA/P - / -3 2 Partial capture
10-23 17:46 80m -3 / -6 RA9SBN -7 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
190515  +4  425  UA9KBC RA3YDA KO62 (x2)
192915  -8 1937  R6ZS RA3YDA KO62 (x4)
193230 -24  765  RA3YDA R6ZS RR73
193245  +3  765  R6ZS RA3YDA 73
201930  -7  914  RA3THN RA3YDA KO62 (x3)
202215  +6 2653  RA3YDA RA3THN +00
202230  -7 1989  RA3THN RA3YDA R+03
202245 +13 2653  RA3YDA RA3THN RR73
202300  -7 1989  RA3THN RA3YDA 73
80m
UTC    dB Audio  Message
144700 -23  214  RZ0SW RA3YDA KO62 (x2)
145230 -15  323  UA0YDB RA3YDA KO62 (x2)
145515  +1  323  R9CS/P RA3YDA KO62 (x11)
40m
UTC    dB Audio  Message
142445 -13  518  RA6MQ RA3YDA 73
142500 -20 1503  RA3YDA R1TET +11
142515 -12  519  CQ RA3YDA KO62
142615 -14  518  R9SCJ RA3YDA RR73
142630 -21 1503  RA3YDA R1TET +11 (x2)
142900 -19 1356  RA3YDA RA3UEV -03
142915 -15  518  RA3UEV RA3YDA R-05
142930 -18 1356  RA3YDA RA3UEV RR73
143130  -6  504  RA0SCZ RA3YDA KO62 (x3)
183015  -5 2649  RA3YDA R6ACD -20 (x3)
10m
UTC    dB Audio  Message
153400 -13 2480  RA3YDA PQ5TA -05 (x2)
135330 -17 1592  RA3YDA CR7BUW IM58 (x2)
20m
UTC    dB Audio  Message
182330 -16 1616  RA3YDA CT1BFP IM59 (x2)
140430  +5 2822  RA3YDA SV1SSL KM18 (x3)
132400 +26 2896  RA3YDA EA3CUU JN12 (x5)
140830  +3 2897  RA3YDA DL8WEM JN48 (x2)
141730  -4 1728  RA3YDA RZ3DX KO85 (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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