R3DMK — 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: LO04

Receiver-side FT8 activity involving R3DMK, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-08-29.

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 51 FT8 messages attributed to R3DMK as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

51
Messages attributed
4
UTC dates decoded
10
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-08-24
Last attributed message: 2026-08-29 15:42 UTC

Observed FT8 message patterns

Attributed sample
51 messages
Active dates
4 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 19.

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 R3DMK

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
LO04 · 15 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,398 km (approx.)
Last such locator decoded
2026-08-29 15:39 UTC

Other locator fields attributed to this token: LO05 (4).

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 UTCBandR3DMK S/NCounterpartCounterpart S/NMsgsCapture
08-29 15:38 40m -9 / - G4DBW - / - 3 Partial capture
08-29 15:37 40m -9 / - OH7UE - / -4 3 ✓ Closing fragment
08-29 15:35 40m -11 / -2 RA4HG -5 / +10 4 ✓ Full exchange observed
08-29 15:30 40m -11 / - OE3RWR - / -14 7 ✓ Closing fragment
08-29 13:08 40m - / - DK2M +1 / - 3 Partial capture
08-29 13:05 40m - / -10 EU2AAI -15 / - 2 ✓ Closing fragment
08-27 15:56 40m -18 / -13 RA5CO -11 / +5 6 ✓ Full exchange observed
08-27 15:54 40m - / - R1TAX -11 / - 2 Partial capture
08-27 15:54 40m -16 / -6 RW9WJ -5 / +5 7 ✓ Full exchange observed
08-27 15:52 40m - / -3 R4FCK -16 / - 2 Partial capture
08-27 15:42 40m - / -6 UA6HJT +2 / - 3 ✓ Closing fragment
08-27 15:12 40m - / -6 UA6LIK -6 / - 3 ✓ Closing fragment
08-27 13:46 40m - / -6 UB3LBU -17 / - 2 Partial capture
08-27 13:40 40m - / -10 R2SL -13 / - 3 ✓ Closing fragment
08-27 13:35 40m - / -7 R3DMS -14 / - 2 ✓ Closing fragment
08-27 13:02 40m - / +2 RT2P -18 / - 2 ✓ Closing fragment
08-26 18:58 40m - / - 9A4ZM +8 / - 2 Partial capture
08-26 18:57 40m +1 / -5 OZ1KZX +6 / -5 5 ✓ Full exchange observed
08-26 18:53 40m -4 / -23 EA5B -10 / -25 6 ✓ Full exchange observed
08-26 18:49 40m -4 / -10 S58MU -2 / - 5 Partial capture
08-26 18:45 40m -4 / - R1LP -12 / -7 3 ✓ Closing observed
08-26 18:44 40m -2 / - R4FS - / +4 2 ✓ Closing fragment
08-26 18:28 40m -6 / -13 F4IIX -13 / -25 4 ✓ Full exchange observed
08-26 18:24 40m - / -18 I1RJP -1 / - 5 ✓ Closing fragment
08-26 18:22 40m - / -14 PE1NAO -15 / - 3 ✓ Closing fragment
08-26 17:51 40m - / -13 R7KM +2 / - 7 ✓ Closing fragment
08-26 17:45 40m - / -11 R6DZR -2 / - 2 ✓ Closing fragment
08-26 17:43 40m - / -6 RX3ASQ -9 / - 8 Partial capture
08-26 17:33 40m - / - RV3YN -4 / - 6 Partial capture
08-26 17:20 40m -12 / - UA3ON - / - 2 ✓ Closing fragment
08-26 17:18 40m -16 / - R3MBV -5 / +9 3 Partial capture
08-26 17:18 40m -17 / -2 UB4CJS +2 / - 3 ✓ Closing observed
08-26 17:17 40m -16 / - EU6UE - / -4 2 ✓ Closing fragment
08-26 17:14 40m - / -6 RD7LC +9 / - 2 ✓ Closing fragment
08-26 17:14 40m -20 / - UA4HBJ 0 / - 3 ✓ Closing observed
08-26 12:59 40m - / +4 RA5CO -20 / - 2 Partial capture
08-25 18:15 40m - / - R3LDK -4 / - 4 Partial capture
08-24 17:23 40m - / +4 RA3TRR -9 / - 2 ✓ Closing fragment
08-24 17:20 40m - / - UA4WCS -8 / - 2 Partial capture
08-24 17:17 40m - / -7 RA6FSV -11 / - 2 ✓ Closing fragment
08-24 17:16 40m - / - RA6FC +4 / - 2 Partial capture
08-24 17:15 40m - / - R5GG -16 / - 2 Partial capture
08-24 17:15 40m - / - OZ5AGJ -3 / - 2 Partial capture
08-24 17:10 40m - / -12 DK7ZT -6 / - 2 ✓ Closing fragment
08-24 17:10 40m - / - R3WDW +7 / - 4 Partial capture
08-24 17:10 40m - / - RA4CGX +4 / - 2 Partial capture
08-24 17:10 40m - / - RA6FC +4 / - 5 Partial capture
08-24 16:09 40m - / -13 RK4FD -3 / - 3 ✓ Closing fragment
08-24 16:07 40m - / -9 R3PJ -4 / - 3 ✓ Closing fragment
08-24 16:06 40m - / - R5GG -14 / - 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
153230 -11 2118  OE3RWR R3DMK LO04 (x4)
153515  -6  705  R3DMK RA4HG -02
153530  -8 2118  RA4HG R3DMK R+10
153545  -4  705  R3DMK RA4HG RR73
153600 -14 2118  RA4HG R3DMK 73
153715  -5 2367  OH7UE R3DMK LO04 (x3)
153845 -10 2233  G4DBW R3DMK LO04 (x3)
154245 -10 2190  SM1NFH R3DMK 73

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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