R3WCH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO81

Receiver-side FT8 activity involving R3WCH, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-07-18.

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 17 FT8 messages attributed to R3WCH as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
2
UTC dates decoded
6
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-07-05
Last attributed message: 2026-07-18 13:22 UTC

Observed FT8 message patterns

Attributed sample
17 messages
Active dates
2 UTC dates
Estimated median S/N
-14 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 2.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Most frequent locator attributed to R3WCH

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
KO81 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,083 km (approx.)
Last such locator decoded
2026-07-18 13:22 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 UTCBandR3WCH S/NCounterpartCounterpart S/NMsgsCapture
08-23 12:13 20m - / -13 HA1ZW -12 / - 2 Partial capture
08-23 11:47 20m - / -19 DK2NG +10 / - 3 ✓ Closing fragment
08-23 11:37 20m - / -25 IK4LZH +6 / - 3 Partial capture
08-16 09:32 20m - / - DM2DXA -18 / - 2 Partial capture
08-16 08:54 20m - / - DL1R -1 / - 9 Partial capture
08-09 10:53 20m - / -13 DK3BK -9 / - 3 ✓ Closing fragment
08-09 07:11 20m - / -23 SV2HTW -11 / - 5 ✓ Closing fragment
08-01 08:32 20m - / -12 LZ1FBI -15 / - 4 ✓ Closing fragment
07-19 08:58 10m - / -7 RZ6LY -12 / - 2 Partial capture
07-19 08:24 10m - / - DK4RH -12 / - 2 Partial capture
07-19 08:21 10m - / - R7DX -11 / - 10 Partial capture
07-18 13:16 10m -12 / - OE3MJA - / - 2 Partial capture
07-18 13:07 10m -13 / - S51KD - / +2 3 ✓ Closing fragment
07-18 12:46 10m - / -12 RN6MA -15 / - 3 ✓ Closing fragment
07-18 12:16 10m - / - ON4ASV -10 / - 3 Partial capture
07-18 11:07 10m - / -10 F4FTV -8 / - 12 ✓ Closing fragment
07-18 10:43 10m - / - SV2AOB -6 / - 2 Partial capture
07-18 10:14 10m - / -10 PD7RF -16 / - 2 ✓ Closing fragment
07-18 10:07 10m - / 0 IK7IMK +4 / - 2 ✓ Closing fragment
07-18 09:39 10m - / -1 IK7IMK +2 / - 2 ✓ Closing fragment
07-18 09:06 10m - / - DN9BT +8 / - 2 Partial capture
07-18 09:02 10m - / - DJ5YS -18 / - 2 Partial capture
07-18 08:58 10m - / -6 SV2CLJ -10 / - 2 ✓ Closing fragment
07-18 08:56 10m - / -6 IK4LZH +6 / - 3 ✓ Closing fragment
07-18 08:53 10m - / -15 DL3MIB -19 / - 2 ✓ Closing fragment
07-18 08:36 10m - / - RZ3DJ +2 / - 2 Partial capture
07-18 08:32 10m - / -8 RL1B -8 / - 2 Partial capture
07-18 05:35 20m - / -13 SV2HTW -6 / - 2 ✓ Closing fragment
07-05 12:02 10m - / -14 EC5M -20 / - 2 ✓ Closing fragment
07-05 11:54 10m -3 / - LZ1JZ +4 / - 2 ✓ Closing observed
07-05 11:52 10m - / -19 EA5OL -9 / - 3 ✓ Closing fragment
07-05 11:48 10m - / -6 GJ0KYZ +2 / - 2 ✓ Closing fragment
07-05 11:41 10m - / -7 F1ODM -17 / - 3 ✓ Closing fragment
07-05 11:34 10m - / -1 IK4LZH +9 / - 3 Partial capture
07-05 11:31 10m - / - F4BJN -24 / - 2 Partial capture
06-27 11:25 20m - / - IK2XDF 0 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
085645  -1 2656  R3WCH DL1R JN58 (x5)
093200 -17 1964  R3WCH DM2DXA JO64 (x2)
113745  +8  465  R3WCH IK4LZH -25 (x3)
114745  +8 2101  R3WCH DK2NG JO52 (x3)
121330 -15 1371  R3WCH HA1ZW -13 (x2)
10m
UTC    dB Audio  Message
082200 -12 1284  R3WCH DL1WKA JO42
082230  -9 1970  R3WCH R7DX KN84 (x4)
082400 -11 1749  R3WCH DK4RH JO31
082430  -9 1970  R3WCH R7DX KN84
082430  -8 2683  R3WCH IQ4JO JN63
082430 -14 1749  R3WCH DK4RH JO31
082600 -17 1970  R3WCH R7DX KN84 (x3)
085830 -20 1605  R3WCH RZ6LY -07 (x2)
085930 -13 1970  R3WCH R7DX -19

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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