R3DIH — 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 R3DIH, decoded by SO8OO in southeastern Poland. 260 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-05.

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 260 FT8 messages attributed to R3DIH as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (33%) and 10 m (3%). Most decodes (67%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

260
Messages attributed
18
UTC dates decoded
51
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 164 20m · 87 10m · 9
First attributed message: 2026-06-12
Last attributed message: 2026-09-05 05:41 UTC

Observed FT8 message patterns

Attributed sample
260 messages
Active dates
18 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-17 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 111, strong (≥ -8 dB) 99.

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 R3DIH 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 R3DIH

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 · 92 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,309 km (approx.)
Last such locator decoded
2026-08-20 08:58 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 UTCBandR3DIH S/NCounterpartCounterpart S/NMsgsCapture
09-05 05:41 40m -4 / - RA3ZDU - / +6 2 Partial capture
08-20 08:58 20m +7 / -7 IK4LZH +10 / +10 7 ✓ Full exchange observed
07-29 06:46 20m - / -9 F5GSJ -11 / - 2 ✓ Closing fragment
07-29 06:27 40m - / +1 DM8KM -16 / - 2 ✓ Closing fragment
07-26 18:53 40m -10 / - UB3IBG - / -7 3 ✓ Closing fragment
07-26 18:50 40m -12 / - EU7DD -16 / +3 4 ✓ Full exchange observed
07-26 18:46 40m -16 / - UC6B - / - 4 ✓ Closing fragment
07-26 18:43 40m -13 / -7 RA3ALC -5 / - 3 ✓ Full exchange observed
07-26 18:39 40m - / - RA3ALC -2 / - 2 Partial capture
07-26 18:39 40m -12 / - R3DHP -10 / - 4 Partial capture
07-26 18:37 40m -10 / - R2AL +2 / - 8 ✓ Closing observed
07-26 18:37 40m -9 / -10 S59A +6 / - 4 ✓ Full exchange observed
07-26 18:36 40m -11 / - UB3DKH - / -9 2 ✓ Closing fragment
07-26 18:33 40m -12 / - UB1OBV - / -11 2 ✓ Closing fragment
07-26 18:31 40m -11 / -9 RA3ZOM -9 / - 5 ✓ Full exchange observed
07-26 18:28 40m -6 / - RA3TRR - / - 3 ✓ Closing fragment
07-26 18:24 40m -14 / -1 UI5A -17 / - 3 Partial capture
07-26 18:22 40m -15 / - R2BEH - / -11 4 ✓ Closing fragment
07-26 18:20 40m -18 / - RA1TR - / - 3 ✓ Closing fragment
07-26 18:18 40m -16 / - BD4XGP - / -21 4 Partial capture
07-26 18:11 40m -8 / -4 RL3P -12 / - 4 ✓ Full exchange observed
07-26 18:09 40m -6 / - UB4CGR - / +9 2 ✓ Closing fragment
07-26 18:07 40m -4 / 0 R7NK -6 / +2 5 ✓ Full exchange observed
07-26 18:02 40m -16 / - UA3UBV - / +9 2 ✓ Closing fragment
07-26 18:00 40m -16 / - UA3QIN - / +6 4 ✓ Closing fragment
07-23 14:36 10m -14 / - PY5NBX - / - 3 Partial capture
07-23 14:19 10m -22 / - RT6O -21 / - 3 ✓ Closing observed
07-23 09:28 10m - / -23 R2EA -4 / - 2 Partial capture
07-23 09:16 20m - / -17 RU6UR -11 / - 4 ✓ Closing fragment
07-22 13:32 20m - / -6 IU5HIU -11 / - 2 Partial capture
07-22 13:26 20m - / -2 R3OR -4 / - 2 ✓ Closing fragment
07-18 09:12 20m - / - R2AL +1 / - 3 Partial capture
07-18 09:11 20m - / -15 SP3RK -12 / - 2 ✓ Closing fragment
07-17 19:09 40m -9 / -6 R3BDQ -14 / - 4 ✓ Full exchange observed
07-17 19:07 40m -11 / - R6AAF - / -7 3 ✓ Closing fragment
07-17 19:03 40m -14 / - RL3F - / - 2 ✓ Closing fragment
07-17 18:58 20m -21 / -2 RW9QA -7 / - 2 Partial capture
07-17 18:53 20m -3 / - RA1WU - / +3 3 ✓ Closing fragment
07-17 18:45 40m -14 / -13 RK3AQ -14 / - 4 ✓ Full exchange observed
07-17 18:42 40m -13 / +2 R3XBB -11 / - 5 ✓ Full exchange observed
07-17 18:37 40m -4 / - RY3DAD - / - 3 ✓ Closing fragment
07-17 18:37 40m -5 / - RL2Y -8 / - 6 ✓ Full exchange observed
07-17 18:32 40m -15 / -1 R9FE -15 / - 4 ✓ Full exchange observed
07-17 18:30 40m -7 / - RL2Y - / - 2 Partial capture
07-17 18:27 40m -14 / -3 R4FAH -16 / - 5 ✓ Full exchange observed
07-17 18:25 40m -16 / - RT6O -14 / - 3 ✓ Closing observed
07-17 18:19 40m -12 / - UB3UAC - / - 2 ✓ Closing fragment
07-14 15:25 40m - / -13 DK7UY -4 / - 4 Partial capture
07-13 10:04 20m - / +3 UA3AGW -20 / - 3 ✓ Closing fragment
07-10 08:11 20m - / -10 UB6OCD -20 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
184800 -13 1408  UC6B R3DIH KO95 (x2)
185000 -12 1730  EU7DD R3DIH KO95
185015 -17 1731  R3DIH EU7DD +20
185030 -13 1730  EU7DD R3DIH R+03
185045 -16 1731  R3DIH EU7DD RR73
185300 -12 1532  UB3IBG R3DIH KO95 (x3)
054345  -9 2858  R3DIH E75FM -22
062745 -15 2053  R3DIH DM8KM +01 (x2)
054015  -7 1292  R73SLET R3DIH R+00
054115  -4 1292  RA3ZDU R3DIH +06 (x2)
20m 
UTC    dB Audio  Message
091645 -14 1658  R3DIH RU6UR -17 (x4)
064600 -12 2316  R3DIH F5GSJ -09 (x2)
070130 -12  718  R3DIH RN3ZBX -18
075800 -11 1616  R3DIH F4FSY JN25
085830  +4  464  IK4LZH R3DIH KO95
085845  +5  464  R3DIH IK4LZH -07
085900 +11  464  IK4LZH R3DIH R+10
085915  +9  464  R3DIH IK4LZH -07
085930  +9  464  IK4LZH R3DIH R+10
085945 +15  464  R3DIH IK4LZH RR73
090000  +3  464  IK4LZH R3DIH 73
10m 
UTC    dB Audio  Message
101730 -10 1885  R3DIH R5KH RR73
095300 -11  781  R1MA R3DIH 73
095330 -24 1582  RX7T R3DIH KO95
090200 -16 1903  R3DIH R6ML LN17
092800  -6  604  R3DIH R2EA -23 (x2)
093200 -16 2148  R3DIH RL1B RR73
094100  -9  604  R3DIH R2EA -20
094930 +13  509  R3DIH IK5PWQ JN53
141900 -20 1660  RT6O R3DIH KO95 (x2)
141945 -21 1659  R3DIH RT6O RR73
143615 -17 1024  PY5NBX R3DIH KO95 (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.

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