RA3DA — 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: KO95

Receiver-side FT8 activity involving RA3DA, decoded by SO8OO in southeastern Poland. 1,653 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-15.

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 1,653 FT8 messages attributed to RA3DA as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (42%), followed by 80 m (32%) and 40 m (17%). The busiest six-hour window was 21:00-03:00 UTC, containing 46% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +2 dB.

Overview

1,653
Messages attributed
48
UTC dates decoded
180
Active 15-min windows
+2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-15 13:49 UTC

Observed FT8 message patterns

Attributed sample
1,653 messages
Active dates
48 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-13 to +16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 103, moderate (-15 to -9 dB) 192, strong (≥ -8 dB) 1,358.

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 RA3DA

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
KO95 · 1,047 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,309 km (approx.)
Last such locator decoded
2026-10-15 13:49 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 UTCBandRA3DA S/NCounterpartCounterpart S/NMsgsCapture
10-15 13:42 160m 0 / - H49A - / -24 13 Partial capture
10-15 13:38 160m 0 / - RW0AE - / -8 2 ✓ Closing fragment
10-15 13:27 80m -6 / - RX9ULM - / -6 3 ✓ Closing fragment
10-15 13:26 80m -6 / - BD8FWI - / - 2 Partial capture
10-15 13:22 40m -2 / - AA5R - / - 2 Partial capture
10-15 13:19 40m -2 / - VK2VAR - / -18 3 ✓ Closing fragment
10-15 13:17 40m +2 / - VK3NFI - / -17 3 ✓ Closing fragment
10-15 13:16 40m +6 / - AG5MS - / - 2 Partial capture
10-15 13:14 40m +2 / - NF5R - / -24 4 ✓ Closing fragment
10-15 13:13 40m 0 / - UB0SDP - / -13 2 ✓ Closing fragment
10-15 13:12 40m -3 / - W2SKI - / -19 3 ✓ Closing fragment
10-15 13:10 40m -2 / - R9FGJ - / -4 2 ✓ Closing fragment
10-15 13:09 40m +2 / - YC4PIW - / -7 2 ✓ Closing fragment
10-15 13:08 40m 0 / - KJ5IEL - / -18 2 ✓ Closing fragment
10-15 13:06 40m 0 / - W5AJ - / -19 2 Partial capture
10-15 13:05 40m +1 / - BG0FQU - / -14 3 ✓ Closing fragment
10-15 13:04 40m +4 / - BI6LWM - / -17 2 ✓ Closing fragment
10-15 13:00 40m +2 / - K0EOU - / -25 4 ✓ Closing fragment
10-15 12:54 40m -8 / - JH3EQP - / -7 2 ✓ Closing fragment
10-15 12:44 40m -5 / - R0DZ - / -8 3 ✓ Closing fragment
10-15 12:43 40m -6 / - 7M1APK - / -11 2 ✓ Closing fragment
10-15 12:42 40m -3 / - JP2SYS - / -7 2 ✓ Closing fragment
10-15 12:40 40m -4 / - JA7XRH - / -9 3 ✓ Closing fragment
10-15 12:39 40m -7 / - JT1DN - / -10 3 ✓ Closing fragment
10-15 12:38 40m -5 / - BD8FWI - / -7 2 ✓ Closing fragment
10-15 12:36 40m -2 / - BG5EGC - / -14 3 ✓ Closing fragment
10-15 12:35 40m -5 / - BD1AV - / -17 3 ✓ Closing fragment
10-15 12:33 40m -8 / - ZL1MED - / -15 3 ✓ Closing fragment
10-15 12:32 40m -6 / - JA8NRS - / -10 2 ✓ Closing fragment
10-15 12:31 40m -7 / - BG7HFE - / -14 3 ✓ Closing fragment
10-15 12:29 40m -7 / - 7N1PVD - / -9 2 ✓ Closing fragment
10-15 12:28 40m -10 / - BG5CNL - / -14 2 ✓ Closing fragment
10-15 12:26 40m -11 / - JA3CTR - / -10 2 ✓ Closing fragment
10-05 00:13 160m +17 / -15 IS0BQE -12 / -19 6 ✓ Full exchange observed
10-05 00:07 160m +17 / - G6BCC -12 / -14 4 ✓ Full exchange observed
10-05 00:04 160m +7 / -6 G6PWS -6 / -6 5 ✓ Full exchange observed
10-05 00:03 160m +16 / -2 RG8U -13 / -20 3 ✓ Full exchange observed
10-05 00:01 160m +16 / -1 DL9KM -11 / -20 5 ✓ Full exchange observed
09-30 10:25 40m -11 / - JT1DN - / - 4 Partial capture
09-30 10:13 40m -6 / - NL8F - / -18 4 ✓ Closing fragment
09-30 10:09 40m -18 / - UA0FUJ - / - 5 Partial capture
09-29 15:20 80m 0 / - 3D2USU - / -13 2 Partial capture
09-21 18:00 160m +9 / 0 RA3VX -4 / -1 4 ✓ Full exchange observed
09-21 17:55 160m +10 / - JA8IIK/P - / -16 2 ✓ Closing fragment
09-21 17:54 160m +2 / - UN7LAN - / -10 2 ✓ Closing fragment
09-21 17:42 160m 0 / +2 R6ZQ -7 / -2 5 ✓ Full exchange observed
09-21 17:37 160m +2 / -11 RL9F -13 / +1 5 ✓ Full exchange observed
09-21 17:35 160m +1 / - JR1CFG - / -13 2 ✓ Closing fragment
09-21 17:31 160m +1 / - R3DGH - / -13 2 ✓ Closing fragment
09-21 17:29 160m +1 / - RA1TAR - / -13 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
133845  +0 2247  RW0AE RA3DA R-08 (x2)
134215  -4 2247  H49A RA3DA KO95 (x13)
80m
UTC    dB Audio  Message
145300  -8  990  CQ RA3DA KO95 (x3)
145530  -9  990  JO1NKB RA3DA RR73
152045  +2 1058  3D2USU RA3DA KO95 (x2)
132415  +0 2528  JA8NRS RA3DA KO95
132445  -8 2527  CQ RA3DA KO95
132545  -5 2528  RW9MZ RA3DA RR73
132615  -5 2528  BD8FWI RA3DA KO95 (x2)
132715  -8 2527  RX9ULM RA3DA KO95 (x3)
132845  +0 2527  JR4DHK RA3DA KO95
40m
UTC    dB Audio  Message
131445  +0 2611  NF5R RA3DA KO95 (x4)
131645  +6 2611  AG5MS RA3DA KO95 (x2)
131745  +6 2611  VK3NFI RA3DA KO95 (x3)
131915  +2 2611  VK2VAR RA3DA KO95 (x3)
132145  -9 2281  KC7QY RA3DA KO95
132215  -5 2281  AA5R RA3DA KO95 (x2)
20m
UTC    dB Audio  Message
052745  +9 2659  RA3DA DL1R JN58 (x4)
052945  -2  956  RA3DA LZ2SPD R-12
052945 +10 2659  RA3DA DL1R JN58 (x3)
053045 -17  987  8Z1IT RA3DA KO95
053115 +17 2659  RA3DA DL1R JN58
053115  -9  987  8Z1IT RA3DA KO95
053145  -8  987  SV5AZK RA3DA KO95
053145 +12 2659  RA3DA DL1R JN58
042215 -19 2231  RA3DA N1WI -14
042645 -15 2336  RA3DA UN2NC -15
60m
UTC    dB Audio  Message
194000 -11 1314  RA3DA IU6STP JN63 (x3)
10m
UTC    dB Audio  Message
214130  +1 2317  DN9OPA RA3DA RR73
214145 -15 2391  RA3DA DN9OPA 73
214200  +9 2317  CT7AUT RA3DA -08 (x2)
214300  +4 2317  CQ RA3DA KO95
214330 +10 2317  SP9DPI RA3DA -06 (x2)
214430  +7 2317  DL3NGN RA3DA -06 (x2)
214615  +4 2317  PT7AZ RA3DA KO95 (x4)
205630 -13 2472  DL3NGN RA3DA RR73
205800 -11 2472  CQ RA3DA KO95

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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