R3MDA — 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: KO97

Receiver-side FT8 activity involving R3MDA, decoded by SO8OO in southeastern Poland. 1,164 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 39 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-10-16.

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 1,164 FT8 messages attributed to R3MDA as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (42%) and 20 m (3%). Most decodes (88%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

1,164
Messages attributed
39
UTC dates decoded
136
Active 15-min windows
-7 dB
Estimated median S/N

Bands

First attributed message: 2026-08-09
Last attributed message: 2026-10-16 04:37 UTC

Observed FT8 message patterns

Attributed sample
1,164 messages
Active dates
39 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-15 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 106, moderate (-15 to -9 dB) 364, strong (≥ -8 dB) 694.

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 R3MDA

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
KO97 · 687 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,404 km (approx.)
Last such locator decoded
2026-10-16 04:37 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 UTCBandR3MDA S/NCounterpartCounterpart S/NMsgsCapture
10-18 11:18 10m - / - CS7BPG -16 / - 3 ✓ Closing fragment
10-16 04:23 40m -4 / - IZ8PPI - / -20 2 Partial capture
10-14 05:52 40m - / - IZ3EAW +1 / - 7 Partial capture
10-14 05:47 40m -14 / +1 S59A +2 / +6 3 ✓ Full exchange observed
10-12 18:48 40m -19 / -8 R6YG -10 / - 3 ✓ Closing observed
10-12 18:27 40m -12 / -4 RC6OZ -2 / - 4 ✓ Closing observed
10-07 18:05 40m -3 / - UN7PHV - / -19 2 ✓ Closing fragment
10-07 18:02 40m -7 / 0 R7KEO -5 / - 4 ✓ Closing observed
10-07 04:43 40m - / - EB2EMZ -20 / - 2 Partial capture
10-07 04:43 40m - / - RN6HGI -12 / - 2 Partial capture
10-07 04:30 40m - / - US3EW -12 / - 3 ✓ Closing fragment
10-07 04:26 40m - / 0 RU7C -18 / - 2 ✓ Closing fragment
10-06 04:17 40m - / -6 RU4I -14 / - 2 ✓ Closing fragment
10-06 04:13 40m -2 / 0 RC6D -20 / -4 4 Partial capture
10-05 05:24 40m -6 / - IQ0AAX - / -9 3 ✓ Closing fragment
10-05 05:22 40m -13 / - RN2F - / - 2 ✓ Closing fragment
10-05 05:04 40m -18 / - UA9FKM - / -6 2 ✓ Closing fragment
10-05 05:01 40m - / -8 IW0RLC -6 / - 7 ✓ Closing fragment
10-05 05:01 40m - / -4 UA3WG -11 / - 3 ✓ Closing fragment
10-05 04:58 40m -16 / - R80SAA - / - 2 Partial capture
10-05 04:55 40m -9 / -7 LZ2II +1 / +1 4 ✓ Full exchange observed
10-05 04:53 40m -13 / - TA2VUZ - / -10 3 ✓ Closing fragment
10-05 04:49 40m -11 / - R6AR -5 / -2 5 ✓ Closing observed
10-05 04:46 40m -10 / - SP7SZJ - / +3 2 Partial capture
10-05 04:41 40m -11 / - RQ6B - / +5 5 ✓ Closing fragment
10-04 14:02 10m - / -8 EA5FD -11 / - 3 ✓ Closing fragment
10-04 04:49 40m -12 / -6 RK6MC -8 / +9 6 ✓ Full exchange observed
10-04 04:48 40m -10 / - UB4HPQ - / -6 3 ✓ Closing fragment
10-04 04:47 40m - / - RM5F -12 / - 4 Partial capture
10-04 04:46 40m -7 / -15 UA3YPS -12 / +2 5 ✓ Full exchange observed
10-04 04:41 40m -9 / - UA9QFF - / -5 3 Partial capture
10-04 04:34 40m - / - RA3VX -10 / - 2 Partial capture
10-04 04:31 40m -14 / - ON7KEI - / -16 2 ✓ Closing fragment
10-04 04:30 40m -18 / - RL3ZA - / - 2 ✓ Closing fragment
10-04 04:29 40m - / - RM5F -6 / - 4 Partial capture
10-04 04:27 40m -16 / - RQ7R - / -3 4 ✓ Closing fragment
10-04 04:23 40m - / - RM5F -4 / - 5 Partial capture
10-02 05:16 40m -13 / -1 RZ6L -2 / - 3 ✓ Full exchange observed
10-02 05:13 40m -14 / +9 RZ4FWA -24 / +7 3 ✓ Full exchange observed
10-02 05:07 40m - / - RD3FY -8 / - 4 Partial capture
10-02 05:07 40m -20 / +3 YO9HP +15 / 0 4 ✓ Full exchange observed
10-02 05:05 40m - / -1 RW3SB -19 / - 3 ✓ Closing fragment
10-01 20:59 80m - / -9 UB3DRL -7 / - 4 ✓ Closing fragment
10-01 20:56 80m -18 / -9 R6OD 0 / -6 5 ✓ Full exchange observed
10-01 20:52 80m -12 / - EI2KM - / - 8 Partial capture
10-01 20:40 80m -8 / -11 UA3IAP -3 / 0 4 ✓ Full exchange observed
10-01 20:32 40m -15 / - JJ2IJU - / -5 4 ✓ Closing fragment
10-01 20:30 40m - / - HB9ZHK -14 / - 2 Partial capture
09-30 21:08 40m -10 / - ON6DL -6 / -15 6 ✓ Full exchange observed
09-30 21:08 40m - / - HB9ZHK -20 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
204215 -11 2228  R3MDA R6KA R+19
204215 -17 2362  R3MDA DL3NGN JN59
204245 -10 2228  R3MDA R6KA 73
075100 -11  643  R3MDA R7RAG RR73
090330  -1 2243  R3MDA RN6MA -03 (x2)
113845 -13 2590  R3MDA R6FX LN14
100345  -6 2019  R3MDA M0BEW -16 (x2)
140200  -8 1804  R3MDA EA5FD IM99 (x3)
111815 -14 1596  R3MDA CS7BPG IN51 (x3)
40m
UTC    dB Audio  Message
055545  +1 2370  R3MDA IZ3EAW JN55
042230  -3 2578  CQ R3MDA KO97
042330  -4 2579  IZ8PPI R3MDA R-20 (x2)
042645 -15 1941  R3MDA RU6FS RR73
043130 -13 2578  CQ R3MDA KO97 (x10)
80m
UTC    dB Audio  Message
205415 -12 2390  EI2KM R3MDA KO97 (x4)
205600  +0 2565  R3MDA R6OD KN87 (x2)
205645 -18 2391  R6OD R3MDA -06
205700 -13  253  R3MDA UB3DRL KO84
205700  +0 2565  R3MDA R6OD R-09 (x2)
205815 -17 2390  EI2KM R3MDA KO97
205930  -8 2390  R3MDA UB3DRL KO84 (x4)
60m
UTC    dB Audio  Message
201815  -1 2613  R3MDA SP9SOS KN09 (x2)
20m
UTC    dB Audio  Message
035915  -9 1658  R3MDA RV6F LN14
035915  -9 1742  R3MDA RU6UR RR73
035945 -11 1658  R3MDA RV6F LN14 (x2)
060000  -4 2556  CQ R3MDA KO97
060015  -5 1692  R3MDA RX3ASQ KO95
060030  -3 2556  RX3ASQ R3MDA -17
060045  +6 1692  R3MDA RX3ASQ R-19
060100  +2 2556  RX3ASQ R3MDA RR73
060115  +4 1692  R3MDA RX3ASQ 73
060200  -1 2556  CQ R3MDA KO97 (x3)
060330  +1 2556  SP5SE R3MDA -03 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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