RA3DRI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO86

Receiver-side FT8 activity involving RA3DRI, decoded by SO8OO in southeastern Poland. 518 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 518 FT8 messages attributed to RA3DRI as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 80 m (13%) and 20 m (6%). Most decodes (94%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

518
Messages attributed
43
UTC dates decoded
149
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 68 40m · 421 20m · 29
First attributed message: 2026-06-07
Last attributed message: 2026-08-31 03:22 UTC

Observed FT8 message patterns

Attributed sample
518 messages
Active dates
43 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 107, moderate (-15 to -9 dB) 161, strong (≥ -8 dB) 250.

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 RA3DRI 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 RA3DRI

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
KO86 · 341 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,244 km (approx.)
Last such locator decoded
2026-08-31 03:22 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 UTCBandRA3DRI S/NCounterpartCounterpart S/NMsgsCapture
09-18 05:23 40m - / -5 R4FFQ -9 / - 2 ✓ Closing fragment
09-14 04:13 40m - / -21 RW3YS +2 / - 4 Partial capture
08-28 05:23 40m - / -13 R2FDU +3 / - 3 ✓ Closing fragment
08-28 05:21 40m - / +7 R3EDI -10 / - 3 ✓ Closing fragment
08-27 01:47 40m -16 / - E75C - / -22 2 ✓ Closing fragment
08-24 01:02 40m - / -19 SV3AUW -2 / - 3 ✓ Closing fragment
08-23 00:42 40m - / -20 EI9KF -14 / - 2 Partial capture
08-22 02:21 40m -12 / -17 LZ2FP -6 / -16 4 ✓ Full exchange observed
08-21 03:37 40m - / - TA3NK -9 / - 3 Partial capture
08-01 02:20 40m - / -18 PD1BER -15 / - 16 Partial capture
07-22 03:03 80m -20 / - LY3BRA - / - 2 Partial capture
07-22 02:16 80m -14 / -10 9A5E +14 / -12 5 ✓ Full exchange observed
07-22 01:35 80m -6 / - DL9KM +3 / -15 12 Partial capture
07-22 01:32 80m -6 / - ON6WP - / -22 5 ✓ Closing fragment
07-22 00:34 80m -3 / +6 OH5KNL +7 / -3 5 ✓ Full exchange observed
07-21 02:32 80m -16 / - F5RRS - / - 3 Partial capture
07-21 02:10 80m - / - DK5WL 0 / - 3 Partial capture
07-21 02:08 80m -11 / -15 YO6LM +14 / - 4 ✓ Closing observed
07-20 01:07 40m -20 / - TF3VS - / - 3 Partial capture
07-20 00:51 40m -18 / - TF3VS - / - 3 Partial capture
07-18 02:02 40m - / -14 9K2YM -9 / - 3 ✓ Closing fragment
07-17 02:37 40m -14 / - UG4P -17 / - 3 ✓ Closing observed
07-13 00:36 80m +2 / - MW0AXD - / - 2 Partial capture
07-13 00:31 80m -4 / - HG8LXL - / - 2 Partial capture
07-12 23:45 80m +5 / -5 YT3BL +17 / -20 4 ✓ Full exchange observed
07-12 23:19 80m +1 / -9 HB9EFK +14 / -13 3 ✓ Full exchange observed
07-12 22:43 80m -2 / -3 LB9ZG -1 / -16 5 ✓ Full exchange observed
07-12 22:14 80m -6 / +6 RA3TVW -4 / 0 3 Partial capture
07-12 22:10 80m -2 / -5 4O7CC +7 / -10 6 ✓ Full exchange observed
07-12 02:32 40m -12 / - AG2K - / - 2 Partial capture
07-12 02:25 40m -15 / -2 IQ4JO +6 / - 3 ✓ Closing observed
07-12 02:22 40m -12 / -6 UB6SAN -16 / - 3 ✓ Closing observed
07-12 01:32 80m 0 / -8 RC6OD +2 / -2 5 ✓ Full exchange observed
07-11 03:16 80m -22 / - HG8LXL - / - 4 Partial capture
07-11 01:36 80m -6 / -20 C31KC -13 / -21 5 ✓ Full exchange observed
07-11 01:30 80m -11 / - EH1FSN - / - 3 Partial capture
07-11 01:23 80m -6 / -4 F5MYK -8 / -13 5 ✓ Full exchange observed
07-10 01:20 40m -14 / - R8CKD - / -4 3 Partial capture
07-10 01:15 40m - / -14 IK2PZX -16 / - 2 ✓ Closing fragment
07-09 03:10 40m -17 / - LY2J - / - 3 Partial capture
07-09 02:56 40m -9 / - ES0RY - / -14 2 ✓ Closing fragment
07-08 01:48 40m -14 / - HK3X - / -15 4 Partial capture
07-08 01:25 40m -14 / - A41KB - / - 3 Partial capture
07-08 01:23 40m -16 / - KP4QVQ - / - 3 Partial capture
07-07 02:17 40m -18 / - HI3CH - / - 3 Partial capture
07-07 02:04 40m -13 / -3 UA3RBM -16 / -12 4 ✓ Full exchange observed
07-06 01:32 40m -14 / - <...> - / - 2 Partial capture
07-05 03:07 40m -20 / - <...> - / - 4 Partial capture
07-04 02:12 40m -10 / - SQ8LE - / - 3 Partial capture
07-03 02:55 40m -12 / - <...> - / - 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
052315  +2  834  RA3DRI R2FDU -13 (x3)
031700 -21 1761  CQ RA3DRI KO86 (x2)
032115 -17 1761  RA3DRI RD4HX LO53
032200 -22 1790  CQ RA3DRI KO86
043200 -15 1594  RA3DRI RA4CGX -12
041300  +5 1889  RA3DRI RW3YS -21 (x4)
015815  +5 2888  RA3DRI R6UBM LN36
052315  -6 1192  RA3DRI R4FFQ -05 (x2)
80m 
UTC    dB Audio  Message
013645  -9 2027  DL9KM RA3DRI -21
013700  +2 1124  RA3DRI DL9KM JN68
013715 -12 2027  DL9KM RA3DRI -22
013730  +4 1124  RA3DRI DL9KM JN68
013745 -10 2027  DL9KM RA3DRI -20
013800  +4 1124  RA3DRI DL9KM JN68
013815  +1 1195  DL9KM RA3DRI -16 (x2)
021615 -15 2136  9A5E RA3DRI KO86
021630 +17 2134  RA3DRI 9A5E -10
021645 -12 2137  9A5E RA3DRI R-12
021700 +12 2134  RA3DRI 9A5E RR73
021715 -14 2137  9A5E RA3DRI 73
030345 -19 2137  LY3BRA RA3DRI KO86 (x2)
20m 
UTC    dB Audio  Message
035730 -18 2175  RA3DRI A71UN -09 (x2)
035530 -19 1264  VK5COP RA3DRI KO86
052100 -16 2267  RA3DRI US5HL -10 (x2)

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.

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