RM3DM — 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: KO84

Receiver-side FT8 activity involving RM3DM, decoded by SO8OO in southeastern Poland. 405 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-08-17 and 2026-10-21.

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 405 FT8 messages attributed to RM3DM as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (27%) and 80 m (16%). Most decodes (63%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

405
Messages attributed
32
UTC dates decoded
69
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-08-17
Last attributed message: 2026-10-21 14:39 UTC

Observed FT8 message patterns

Attributed sample
405 messages
Active dates
32 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 135, strong (≥ -8 dB) 216.

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 RM3DM

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
KO84 · 204 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,150 km (approx.)
Last such locator decoded
2026-10-21 14:38 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 UTCBandRM3DM S/NCounterpartCounterpart S/NMsgsCapture
10-21 14:36 40m -17 / - JI1NFN - / -24 4 Partial capture
10-21 14:33 40m -13 / - 3D2HM - / -19 3 Partial capture
10-21 14:30 40m -12 / - BU2FF - / -18 3 ✓ Closing fragment
10-18 13:47 40m 0 / - UA9WM - / -7 2 ✓ Closing fragment
10-18 13:44 40m 0 / - JA5LHW - / -20 5 ✓ Closing fragment
10-18 13:42 40m -4 / - JA1DCK - / - 2 ✓ Closing fragment
10-17 19:42 40m -10 / - JN1VXL - / - 2 Partial capture
10-17 19:40 40m +2 / - VK4LK - / - 3 Partial capture
10-17 16:20 40m +2 / - JA2ORW - / - 2 Partial capture
10-17 16:18 40m +3 / - BV2NF - / -18 2 ✓ Closing fragment
10-17 16:16 40m -4 / -10 RD3FY -6 / -9 5 ✓ Full exchange observed
10-17 16:15 40m -1 / - JR7NFW - / -18 3 ✓ Closing fragment
10-17 16:13 40m -9 / -6 RM7M -4 / -5 4 ✓ Full exchange observed
10-17 16:11 40m -10 / +2 UC6D +3 / -4 4 ✓ Full exchange observed
10-17 16:07 40m - / - UC6D +7 / - 3 Partial capture
10-15 13:58 40m -20 / - HL5BMX - / - 2 Partial capture
10-15 13:57 40m -19 / - R2ZC - / -1 2 ✓ Closing fragment
10-15 13:54 40m -18 / - HL5BPF - / - 4 Partial capture
10-14 15:13 40m - / - UB3FBD -18 / - 3 Partial capture
10-14 15:11 40m -10 / - JG2CNZ - / - 2 Partial capture
10-14 15:08 40m -6 / - DS2MGT - / -12 2 ✓ Closing fragment
10-14 15:07 40m -11 / - JK7ATC - / -18 2 ✓ Closing fragment
10-14 15:05 40m -12 / - RA4CIY - / -1 2 ✓ Closing fragment
10-14 15:01 40m -9 / -10 DJ0MAB +6 / -12 6 ✓ Full exchange observed
10-14 14:59 40m -6 / - RY9W - / -4 2 ✓ Closing fragment
10-14 14:58 40m -7 / -5 RW9MZ -21 / -2 4 ✓ Full exchange observed
10-14 14:53 40m -6 / - RA9LL - / -3 3 ✓ Closing fragment
10-12 15:15 40m -8 / - 3D2USU - / -26 3 ✓ Closing fragment
10-12 14:36 40m - / -23 UA3QNA +10 / - 2 ✓ Closing fragment
10-12 14:30 40m -18 / - ZL1BQD - / - 2 Partial capture
10-12 14:23 40m - / -7 HA9OA +9 / - 5 ✓ Closing fragment
10-11 15:11 40m -10 / -10 R4HHG -22 / -4 2 Partial capture
10-11 15:05 40m - / -4 R6FX -9 / - 4 ✓ Closing fragment
10-11 15:03 40m - / - R7IW -17 / - 3 Partial capture
10-11 15:01 40m - / -12 RA6ANN -8 / - 5 ✓ Closing fragment
10-11 14:56 40m -12 / - JA8EQZ - / - 2 Partial capture
10-10 15:04 40m -13 / - R2BRD - / -14 2 ✓ Closing fragment
10-10 15:03 40m -13 / - RA4HG - / -1 2 ✓ Closing fragment
10-10 15:00 40m -11 / - R2AL 0 / -3 8 ✓ Closing observed
10-10 15:00 40m -7 / - UB0SMX/P - / -14 2 ✓ Closing fragment
10-10 14:56 40m -14 / - G6OCE - / - 3 Partial capture
10-09 15:37 80m -8 / -6 RA4HEV -16 / -2 5 ✓ Full exchange observed
10-09 15:36 80m -16 / -1 RK4UZ -9 / -1 6 ✓ Full exchange observed
10-09 15:34 80m -16 / - UB3PAQ - / -2 2 Partial capture
10-09 15:29 80m -6 / - RK0SC -13 / -18 4 ✓ Closing observed
10-09 15:21 40m +2 / - UA0LQE - / - 2 Partial capture
10-06 13:47 40m -20 / +2 UA4FKT -12 / +1 7 ✓ Full exchange observed
10-06 13:45 40m -16 / -19 DL4DBM -18 / -24 5 ✓ Full exchange observed
10-06 13:14 40m -17 / - PD9HIX - / - 2 Partial capture
10-06 13:12 40m -18 / - 6L0LV - / - 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
134615  +3 2687  JA5LHW RM3DM R-20 (x2)
134715  +1 2687  UA9WM RM3DM R-07 (x2)
142645 -14 1335  BX2AQN RM3DM KO84
143000 -12 2168  BU2FF RM3DM KO84 (x3)
143315 -12  834  3D2HM RM3DM KO84 (x3)
143615 -13 1852  JI1NFN RM3DM KO84 (x4)
80m
UTC    dB Audio  Message
153400  -3 1445  DM5KM RM3DM KO84
153445 -16 1445  UB3PAQ RM3DM -02 (x2)
153600  -6 1969  RM3DM RK4UZ LO24 (x2)
153645 -14 1446  RK4UZ RM3DM -01
153700 -12 1969  RM3DM RK4UZ R-01
153715 -18 1445  RK4UZ RM3DM RR73
153730  -8 1970  RM3DM RK4UZ 73
153730 -12 1348  RM3DM RA4HEV LO53
153745 -11 1445  RA4HEV RM3DM -02
153800 -18 1348  RM3DM RA4HEV R-06
153815  -6 1445  RA4HEV RM3DM RR73
153830 -19 1347  RM3DM RA4HEV 73
154015  -3 1445  RA9YTI RM3DM KO84
20m
UTC    dB Audio  Message
052730 -18 1580  VK4OOO RM3DM KO84 (x2)
052900 -19 1581  ZL3WPK RM3DM R-13
053815 -10 1580  ZL4NG RM3DM KO84 (x3)
054030 -10 1580  VK4VCC RM3DM KO84
054300  -4 1581  R7KM RM3DM KO84
054430  -5 1580  N5XZ RM3DM KO84
054500  -8 1581  VK3YW RM3DM KO84 (x2)
054700  -4 1580  VK4TMI RM3DM KO84 (x4)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee