RA3DAD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO95

Receiver-side FT8 activity involving RA3DAD, decoded by SO8OO in southeastern Poland. 1,555 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-19.

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 1,555 FT8 messages attributed to RA3DAD as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (49%), followed by 10 m (31%) and 40 m (9%). Most decodes (50%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.

Overview

1,555
Messages attributed
65
UTC dates decoded
300
Active 15-min windows
-6 dB
Estimated median S/N

Bands

160m · 61 80m · 118 40m · 135 20m · 760 10m · 481
First attributed message: 2026-06-07
Last attributed message: 2026-09-19 16:09 UTC

Observed FT8 message patterns

Attributed sample
1,555 messages
Active dates
65 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-18.8 to +8.6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 286, moderate (-15 to -9 dB) 372, strong (≥ -8 dB) 897.

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 RA3DAD 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 RA3DAD

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 · 485 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,309 km (approx.)
Last such locator decoded
2026-09-19 16:09 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 UTCBandRA3DAD S/NCounterpartCounterpart S/NMsgsCapture
09-19 16:08 40m -5 / - RT4A/P - / - 2 Partial capture
09-18 00:12 160m 0 / - RI1FJZ - / - 2 Partial capture
09-15 17:02 80m -13 / +3 RK3YWA -4 / -6 5 ✓ Full exchange observed
09-12 20:12 80m 0 / - R5ACQ -6 / +5 4 ✓ Full exchange observed
09-12 20:09 80m +3 / +2 R2SBI -7 / +3 5 ✓ Full exchange observed
09-12 20:03 80m +9 / - R3DMS - / 0 2 Partial capture
09-12 20:01 80m +9 / - R3TAF - / -17 2 ✓ Closing fragment
09-12 19:59 80m +9 / - R3PLA - / -13 3 ✓ Closing fragment
09-12 19:55 80m +6 / +2 RA3RFT -2 / +1 4 ✓ Full exchange observed
09-12 19:46 80m - / - R3PLA -12 / - 2 Partial capture
09-12 19:44 80m +3 / - UB3LBU -2 / -13 3 ✓ Closing observed
09-12 19:43 80m +2 / +3 RK3YWA -15 / -5 4 ✓ Full exchange observed
09-12 19:42 80m +8 / - R3PJ -1 / -1 3 ✓ Closing observed
09-12 19:41 80m +6 / +4 RU3T -11 / +1 4 ✓ Full exchange observed
09-12 18:21 80m +1 / -10 RK3YWA -14 / -5 7 ✓ Full exchange observed
09-12 17:57 80m +1 / - RU3T - / -2 2 Partial capture
09-12 17:49 80m +4 / +7 R4AGE/P -18 / -8 7 ✓ Full exchange observed
09-12 17:41 80m +2 / - R4AGE/P - / - 2 Partial capture
09-12 16:53 80m -4 / - R4AGE/P - / -3 4 Partial capture
09-12 16:50 80m -4 / -10 UB3ADO/P -18 / -1 6 ✓ Full exchange observed
09-12 16:49 80m -8 / - R4AGE/P - / -1 2 Partial capture
09-12 15:28 40m -6 / - RC0AT/P - / - 10 Partial capture
09-12 15:04 40m -9 / - YD0JHX - / -15 3 Partial capture
09-08 15:24 40m -8 / - RL1I/P - / -12 3 Partial capture
09-08 15:12 40m -9 / - SN40KZE - / -10 5 Partial capture
09-07 18:19 160m 0 / - R9CS/P - / +4 2 Partial capture
09-07 17:09 80m -6 / - SP5DFK/QRP - / +2 2 Partial capture
09-06 12:49 40m -14 / - SP7OK - / -10 2 Partial capture
09-03 23:19 160m +4 / - RI1FJL - / -4 10 ✓ Closing fragment
09-03 19:39 160m -18 / - RI1FJL - / - 6 Partial capture
09-03 19:32 160m -21 / - RI1FJL - / -5 5 Partial capture
09-01 14:15 40m - / +7 RA1TR -18 / - 2 ✓ Closing fragment
08-29 17:22 160m - / - SP9DGO +2 / - 5 Partial capture
08-29 17:21 160m -24 / - UA9UR - / -15 2 ✓ Closing fragment
08-29 16:01 40m -4 / - <...> - / -1 4 Partial capture
08-29 15:33 40m -14 / - RA0FF - / -8 2 Partial capture
08-29 15:30 40m -8 / - RC8U - / -13 3 ✓ Closing fragment
08-29 15:28 40m -2 / - R9HAV - / -4 2 ✓ Closing fragment
08-29 15:25 40m -6 / - VK6WTF - / -18 3 Partial capture
08-29 15:24 40m -6 / - UB0SMX/P - / -13 2 ✓ Closing fragment
08-29 15:21 40m -8 / -12 G4DBW -11 / -13 5 ✓ Full exchange observed
08-29 15:17 40m -12 / - ZL1RPC/P - / -19 7 ✓ Closing fragment
08-29 15:13 40m -7 / - OH/SM5MRW - / -10 3 Partial capture
08-29 14:27 20m -13 / - RM6OS - / -20 2 Partial capture
08-29 14:24 20m -23 / - EJ8JCB -10 / -20 2 ✓ Closing observed
08-29 06:10 20m +1 / - VK2AJB - / -5 6 Partial capture
08-29 06:03 20m 0 / - VK2AJB - / - 8 Partial capture
08-29 05:58 20m -8 / - VK2BSA - / - 3 Partial capture
08-29 05:53 20m -6 / - VK4TMI - / - 7 Partial capture
08-29 05:46 20m -7 / - VK4TMI - / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
150515  -8 2010  YD0JHX RA3DAD R-15
152845 -10 1414  RC0AT/P RA3DAD KO95 (x10)
153615  -3 1168  ON4NYO/QRP RA3DAD KO95
143415 -24 3187  <...> RA3DAD KO95
160845  -6 2467  RT4A/P RA3DAD KO95 (x2)
160m 
UTC    dB Audio  Message
231915  +5 1892  RI1FJL RA3DAD KO95 (x10)
181900  -1  779  R9CS/P RA3DAD KO95
181915 +12 2349  RA3DAD R1943OD -01
181930  +1  779  R9CS/P RA3DAD R+04
001245  -2 1893  RI1FJZ RA3DAD KO95 (x2)
80m 
UTC    dB Audio  Message
200930  +5 2379  R2SBI RA3DAD +03
200945  -7  950  RA3DAD R2SBI R+02
201000  +5 2379  R2SBI RA3DAD RR73 (x3)
201200  +1 2379  R5ACQ RA3DAD +05
201215  -6 1241  RA3DAD R5ACQ R+17
201230  -1 2379  R5ACQ RA3DAD RR73
201245  -5 1241  RA3DAD R5ACQ 73
170200  -8 1818  RA3DAD RK3YWA +03
170215 -14 1928  RK3YWA RA3DAD R-06
170230  -1 1818  RA3DAD RK3YWA RRR
170245 -12 1928  RK3YWA RA3DAD 73
170300  -2 1818  RA3DAD RK3YWA 73
180945  +3 2287  <...> RA3DAD KO95
20m 
UTC    dB Audio  Message
060545  +7  739  VK2AJB RA3DAD KO95 (x10)
142430 -23 1223  EJ8JCB RA3DAD -20
142515 -10  579  RA3DAD EJ8JCB 73
142700 -13 1222  RM6OS RA3DAD -20 (x2)
134930 -13 1428  RA3DAD DA2DA -13
10m 
UTC    dB Audio  Message
171600 -23 1881  PT9HT RA3DAD -21
185215 -18 1475  PS7RW RA3DAD KO95 (x6)
185515 -15 1254  PV2TAA RA3DAD KO95
185545 -17 1254  CQ RA3DAD KO95
185815 -10  734  PS7RW RA3DAD KO95
185845  -6  734  DG1SMD RA3DAD -17 (x2)
193430 -19 1222  PS8ARP RA3DAD KO95
185745 -17 2034  LU3ARN RA3DAD -08 (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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