JA6MWW — 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: Japan Most frequent locator attributed to this token: PM53

Receiver-side FT8 activity involving JA6MWW, decoded by SO8OO in southeastern Poland. 165 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 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 165 FT8 messages attributed to JA6MWW as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 20 m (32%) and 40 m (18%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

165
Messages attributed
17
UTC dates decoded
39
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-16 15:25 UTC

Observed FT8 message patterns

Attributed sample
165 messages
Active dates
17 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-22 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 58, strong (≥ -8 dB) 30.

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 JA6MWW

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
PM53 · 50 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,425 km (approx.)
Last such locator decoded
2026-10-15 19:22 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 UTCBandJA6MWW S/NCounterpartCounterpart S/NMsgsCapture
10-21 19:44 160m - / -20 IZ0COC +10 / - 2 Partial capture
10-19 17:43 160m - / -18 IZ6TSA +1 / - 2 Partial capture
10-19 17:43 160m - / -4 OK2BPU +8 / - 2 ✓ Closing fragment
10-19 17:43 160m - / - OZ6FH -12 / - 3 Partial capture
10-16 21:21 80m - / -16 ER5DX +2 / - 2 Partial capture
10-16 15:25 80m -24 / -13 OH5KNL +10 / - 3 ✓ Closing observed
10-15 19:53 80m - / -22 LY1DY +2 / - 2 ✓ Closing fragment
10-15 19:48 80m - / - F4JJS -8 / - 2 Partial capture
10-15 19:46 80m - / -14 UA3ZNQ -6 / - 4 ✓ Closing fragment
10-15 19:46 80m - / -25 HA5CPN +8 / - 3 Partial capture
10-15 19:46 80m - / -20 RZ3DJ +6 / - 3 ✓ Closing fragment
10-15 19:42 80m - / -19 ON4IQ +20 / - 2 ✓ Closing fragment
10-15 19:22 80m -17 / -18 DM5KM +18 / - 4 Partial capture
10-15 19:12 160m - / - RU3ACA -7 / - 2 Partial capture
10-13 20:38 160m - / -12 PI4DX +4 / - 2 ✓ Closing fragment
10-13 20:24 160m - / -18 SP3PLD +18 / - 4 ✓ Closing fragment
10-13 19:48 80m - / -19 ES2AJ +11 / - 3 ✓ Closing fragment
10-13 19:41 160m - / -12 RA0AF -18 / - 2 ✓ Closing fragment
10-13 19:34 160m - / -18 DL3IAE +8 / - 2 ✓ Closing fragment
10-13 19:23 160m - / -11 ES2AJ +10 / - 2 ✓ Closing fragment
10-13 19:20 80m - / -18 DA1TT +10 / - 2 ✓ Closing fragment
10-13 19:20 80m - / -15 S59A +15 / - 2 ✓ Closing fragment
10-09 22:48 40m - / -22 TA2VUZ -4 / - 5 ✓ Closing fragment
10-09 21:30 80m - / -19 SP9LCW +5 / - 4 ✓ Closing fragment
10-08 20:49 80m - / -23 SQ2RAD +8 / - 2 ✓ Closing fragment
10-08 20:13 80m -18 / - OK2SFP - / - 3 Partial capture
10-08 20:04 80m - / -21 E75C -6 / - 2 ✓ Closing fragment
10-06 19:28 80m - / -12 YT7DX +11 / - 2 ✓ Closing fragment
10-06 19:11 160m - / - SV8JE +5 / - 3 Partial capture
10-06 18:53 80m - / -12 IZ7EVZ -3 / - 2 ✓ Closing fragment
10-05 17:56 160m - / - SP5GMM +9 / - 3 Partial capture
10-05 17:55 160m - / - SQ6WA 0 / - 2 Partial capture
10-05 17:54 160m - / - F6DHD -15 / - 4 Partial capture
10-04 19:45 160m - / -11 R3ZMM +4 / - 5 ✓ Closing fragment
10-04 19:34 80m -14 / -15 OT7K +6 / -15 5 ✓ Full exchange observed
10-04 19:32 80m -14 / -9 OM5FM +16 / -7 4 ✓ Full exchange observed
10-02 20:25 160m - / -20 DF2AJ -10 / - 4 Partial capture
10-02 20:24 160m -12 / -14 9A2RD -5 / -19 10 ✓ Full exchange observed
10-02 20:24 160m - / - DK3UA -1 / - 6 Partial capture
10-02 20:22 160m -10 / -21 DL3GA +4 / -13 6 ✓ Full exchange observed
10-02 20:20 160m -9 / - DK8ZT -5 / -14 3 ✓ Closing observed
10-02 20:18 160m - / - IK1LRX -15 / - 6 Partial capture
10-02 20:17 160m -10 / +7 OH5LF +14 / -17 7 ✓ Full exchange observed
10-02 20:15 160m - / - DK9HN -14 / - 7 Partial capture
10-02 20:13 160m - / - IK1LRX -14 / - 3 Partial capture
10-02 20:12 160m -9 / -18 IW4AOT -2 / -23 6 ✓ Full exchange observed
10-02 20:12 160m -8 / -16 DK8ZT -6 / -14 10 Partial capture
10-02 20:11 160m - / - DK9HN -18 / - 2 Partial capture
10-02 20:11 160m -9 / - M0PNN -23 / -23 2 Partial capture
10-02 20:10 160m -9 / -14 DL3IAE +6 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
174345  +6 2251  JA6MWW OK2BPU 73
174345  +0 2423  JA6MWW 9A2AJ JN85
174445  -5 2118  JA6MWW S52F JN76
174445 -12 1990  JA6MWW OZ6FH JO47
174445  -6 2359  JA6MWW OZ1AXG JO65
174445  -3 2173  JA6MWW IZ6TSA R-18
175315 -13 1493  JA6MWW YO3YV KN34
180330 -19 1990  JA6MWW OZ6FH JO47
180330 -17 1894  JA6MWW IZ7NLJ JN81
183800 -24 1949  JA6MWW SP2JJC JO94
184430 -17 1091  JA6MWW LA9GX -12
184845  -1 2596  JA6MWW ON4IQ -19
202915  +8 1968  JA6MWW OM3TWM 73
194430 +12  864  JA6MWW IZ0COC -20 (x2)
80m
UTC    dB Audio  Message
194715  +4 2689  JA6MWW RZ3DJ 73
194715  +4 2047  JA6MWW HA5CPN -25
194745  -5 1154  JA6MWW UA3ZNQ R-14 (x2)
194845  -7 1233  JA6MWW F4JJS JN19
194915  +5 2047  JA6MWW LY1DY KO14
194915  -8 1233  JA6MWW F4JJS JN19
195315  +4 2047  JA6MWW LY1DY -22 (x2)
152500 +10 2481  JA6MWW OH5KNL -13 (x2)
152545 -24 1404  OH5KNL JA6MWW 73
152900  +0 2732  JA6MWW RJ6B KN95
212100  +0 2784  JA6MWW ER5DX -16 (x2)
40m
UTC    dB Audio  Message
191845  +6 1977  JA6MWW F4JDM R-20
191915  -3 2464  JA6MWW RX7KIR KN75
191915  +3 1977  JA6MWW F4JDM 73
192045 +15 2788  JA6MWW YO3FRI KN34
192045  -4 1148  JA6MWW G4VJL -21
192115 +12 2789  JA6MWW YO3FRI KN34 (x4)
224630 -12 2676  JA6MWW RD3FY KO85
224845  -3 1353  JA6MWW TA2VUZ -22 (x5)

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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