R3MBV — 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 R3MBV, decoded by SO8OO in southeastern Poland. 1,653 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-18.

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 1,653 FT8 messages attributed to R3MBV as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 80 m (32%) and 20 m (20%). Most decodes (78%) 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 -10 dB.

Overview

1,653
Messages attributed
77
UTC dates decoded
339
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-18 08:11 UTC

Observed FT8 message patterns

Attributed sample
1,653 messages
Active dates
77 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to -1.5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 291, moderate (-15 to -9 dB) 714, strong (≥ -8 dB) 648.

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 R3MBV

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 · 858 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,404 km (approx.)
Last such locator decoded
2026-10-18 05:09 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 UTCBandR3MBV S/NCounterpartCounterpart S/NMsgsCapture
10-18 08:14 40m - / +4 UA3IFH -10 / - 2 ✓ Closing fragment
10-18 08:06 40m - / -11 HG5OGI -5 / - 2 ✓ Closing fragment
10-18 03:48 40m - / -8 OE5FIL -8 / - 2 ✓ Closing fragment
10-18 03:40 80m - / -13 GM6URC -7 / - 2 ✓ Closing fragment
10-18 03:39 80m -2 / -4 EW4DX -8 / -16 5 ✓ Full exchange observed
10-18 03:35 80m -12 / - UA3RA - / -3 2 Partial capture
10-17 20:11 80m -16 / - RL7Z - / -18 2 ✓ Closing fragment
10-17 16:42 40m -5 / -23 R3XDT -6 / -12 6 ✓ Full exchange observed
10-17 16:36 40m -4 / - R2AZK/1 - / -12 2 Partial capture
10-17 16:34 40m - / -8 R7ZY -6 / - 2 ✓ Closing fragment
10-17 16:30 40m -2 / - RM7M +2 / -12 3 ✓ Closing observed
10-17 16:27 40m -4 / - RM8CZ - / -9 3 ✓ Closing fragment
10-17 16:21 40m -7 / -13 R2EA/P -11 / - 2 ✓ Closing observed
10-17 16:15 40m -8 / - R3XDT - / - 3 Partial capture
10-17 16:03 80m -5 / -4 R3LDQ -9 / -3 3 ✓ Full exchange observed
10-17 16:01 80m - / -7 OE3XHQ +22 / - 2 ✓ Closing fragment
10-17 15:58 80m -8 / +4 RW9AW +2 / -4 4 ✓ Full exchange observed
10-17 15:55 80m -15 / - RA4CQW/P - / -1 3 ✓ Closing fragment
10-17 15:53 80m -11 / - F5OYA/P - / -5 3 Partial capture
10-17 15:52 80m - / -12 R7AW -1 / - 2 ✓ Closing fragment
10-17 14:53 80m -14 / - R8CEL - / -11 5 ✓ Closing fragment
10-17 14:37 40m -10 / - UD0O - / - 2 Partial capture
10-17 14:32 40m -11 / - R9UBP - / -7 5 ✓ Closing fragment
10-17 14:30 40m -12 / - UB8QAD - / - 2 ✓ Closing fragment
10-17 14:27 80m -24 / -12 R4CY -9 / 0 3 ✓ Full exchange observed
10-17 14:10 40m -12 / - UB4CLH - / 0 2 ✓ Closing fragment
10-17 14:08 40m -12 / -10 RA8CO -20 / -9 6 ✓ Full exchange observed
10-17 14:06 40m -12 / - R0SBH - / -16 3 ✓ Closing fragment
10-17 14:03 40m -17 / -19 RA1QCZ -10 / - 4 ✓ Closing observed
10-17 14:00 40m -12 / - RW4HRE - / -6 3 ✓ Closing fragment
10-17 13:58 40m -7 / - R0SBH - / - 3 Partial capture
10-17 13:50 40m -12 / - R1BNG/P - / - 2 ✓ Closing fragment
10-11 04:18 40m -8 / -17 Z62NS -4 / -24 6 ✓ Full exchange observed
10-11 04:17 40m -4 / - TJ1GD - / - 2 Partial capture
10-11 04:16 40m -4 / - RA9SVO - / -2 2 ✓ Closing fragment
10-11 04:14 40m -8 / - C5R - / -14 3 ✓ Closing fragment
10-11 03:37 80m -5 / -15 RA6ATZ -7 / -7 5 ✓ Full exchange observed
10-10 18:11 80m - / -3 RA5CO -7 / - 2 ✓ Closing fragment
10-10 17:08 40m -6 / - R1OAC -16 / -14 6 ✓ Closing observed
10-10 16:54 80m -3 / -2 R2DR -2 / 0 5 ✓ Full exchange observed
10-10 16:52 80m - / -7 R3IX -2 / - 2 ✓ Closing fragment
10-10 16:39 80m -3 / - EW6CY - / -19 3 ✓ Closing fragment
10-10 16:36 80m -12 / - RA4PKA - / -9 2 Partial capture
10-10 16:33 80m -11 / -6 R3ZBR 0 / - 3 ✓ Closing observed
10-10 16:31 80m -5 / -8 UA3UGW -2 / -2 4 ✓ Full exchange observed
10-10 16:30 80m -8 / - UB3KGW - / -9 4 ✓ Closing fragment
10-10 16:23 80m -2 / - UB3KGW - / - 2 Partial capture
10-10 16:21 80m -5 / -7 R8WM -21 / -7 4 ✓ Full exchange observed
10-10 16:18 80m -9 / - UD1I -7 / -1 5 ✓ Closing observed
10-10 16:14 80m -10 / - R2OM - / -5 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
164315  -8 2380  R3MBV R3XDT -23
164330  -2 2379  R3XDT R3MBV R-12
164345  -3 2380  R3MBV R3XDT RRR
164400  -3 2378  R3XDT R3MBV 73
164615  -8 2415  R3LDJ R3MBV KO97
034845 -11 1197  R3MBV OE5FIL -08 (x2)
035245 -12  880  R3MBV EC5M RR73
050900 -12 2272  RN1CW R3MBV KO97
080600  -4  731  R3MBV HG5OGI -11 (x2)
081130 -15 2316  TF5B R3MBV R-15
081215 -17 1146  R3MBV R3BDS +08
081415 -11  952  R3MBV UA3IFH +04 (x2)
80m
UTC    dB Audio  Message
160315  -5 1004  R3LDQ R3MBV R-03
160330  -2  865  R3MBV R3LDQ RR73
170345 -18 2226  R3MBV RO3ZW RR73
201115 -15 1156  RL7Z R3MBV R-18 (x2)
033515 -11 1183  UA3RA R3MBV KO97 (x2)
033930 -12  899  R3MBV EW4DX KO23
033945  -7 1161  EW4DX R3MBV -16
034000  -7  899  R3MBV EW4DX R-04
034015  +2 1162  EW4DX R3MBV RR73
034030  -8 1693  R3MBV GM6URC -13
034030  -4  899  R3MBV EW4DX 73
034100  -6 1693  R3MBV GM6URC RR73
034300  -9 1161  R2DAY R3MBV KO97
20m
UTC    dB Audio  Message
071945  -3  940  N8HRZ R3MBV KO97 (x3)
072230  +2  940  R4KO R3MBV KO97
072315 -11 1743  R3MBV RA6YDX R+01
072615  -8  939  ZV8R R3MBV KO97
093215  +1 1077  TK/DJ0TP R3MBV KO97 (x2)
093530  +4  977  <...> R3MBV KO97 (x2)
113945 +11  880  R2FDP/P R3MBV KO97 (x3)
084115 -20 1224  R0WBN/P R3MBV KO97 (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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