M1MPB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO83

Receiver-side FT8 activity involving M1MPB, decoded by SO8OO in southeastern Poland. 576 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-16.

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 576 FT8 messages attributed to M1MPB as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (59%), followed by 40 m (41%). Most decodes (57%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

576
Messages attributed
19
UTC dates decoded
106
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-08-16 02:30 UTC

Observed FT8 message patterns

Attributed sample
576 messages
Active dates
19 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -6.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 225, moderate (-15 to -9 dB) 268, strong (≥ -8 dB) 83.

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 M1MPB

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
IO83 · 408 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,744 km (approx.)
Last such locator decoded
2026-08-16 01:38 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 UTCBandM1MPB S/NCounterpartCounterpart S/NMsgsCapture
08-16 02:29 40m -19 / - SV0LS - / -9 2 ✓ Closing fragment
08-15 21:00 40m - / -18 R50RKZ -2 / - 3 ✓ Closing fragment
07-30 19:49 20m - / -4 3A2MW -20 / - 2 Partial capture
07-30 18:03 20m -17 / -9 OZ9FF -16 / -15 5 Partial capture
07-30 18:00 20m -24 / - A71CT -18 / - 2 ✓ Closing observed
07-30 17:57 20m - / - A71CT -20 / - 2 ✓ Closing fragment
07-30 17:53 20m - / -16 A71CT -17 / - 2 Partial capture
07-30 17:41 20m -16 / - DG8JT - / -19 2 Partial capture
07-30 17:38 20m -18 / - DG8JT -7 / - 2 ✓ Closing observed
07-30 13:30 20m -7 / - F1BAY -5 / - 2 ✓ Closing observed
07-30 03:38 40m - / +3 DM8KM +7 / - 2 ✓ Closing fragment
07-30 03:34 40m - / +4 SP6JIU +2 / - 3 ✓ Closing fragment
07-30 02:43 40m -16 / - WA4FU - / - 2 Partial capture
07-29 05:37 20m -8 / - YO9HP - / - 4 Partial capture
07-29 05:19 20m - / -23 R5FY -7 / - 2 Partial capture
07-28 20:28 20m - / -6 9A3AUH -15 / - 2 ✓ Closing fragment
07-28 18:58 20m -14 / - DK2MAX - / -11 3 Partial capture
07-28 17:43 40m - / - PD2XX -18 / - 2 ✓ Closing fragment
07-28 17:03 40m - / -19 9A3AUH -7 / - 4 Partial capture
07-28 15:07 40m - / -5 DK8RG -9 / - 2 Partial capture
07-28 03:52 20m - / -8 W9JOY -10 / - 2 ✓ Closing fragment
07-23 21:02 40m -16 / - DL6BCL - / -12 2 Partial capture
07-23 20:57 40m - / +2 IZ1MKK -18 / - 2 ✓ Closing fragment
07-23 20:45 40m - / -8 IU5VLR -18 / - 4 ✓ Closing fragment
07-23 20:43 40m - / -9 UB6OCP -17 / - 14 Partial capture
07-23 20:37 40m -20 / -11 IU5VLR -21 / -15 3 Partial capture
07-23 20:35 40m -14 / +10 HB9AKE -22 / -5 2 Partial capture
07-23 20:34 40m -18 / +1 DM2BM -11 / +5 5 ✓ Full exchange observed
07-23 20:06 20m -10 / 0 SV9/DH8BQA -3 / -4 3 Partial capture
07-23 20:04 20m -11 / - Z62NS - / - 2 Partial capture
07-23 19:27 20m -12 / - M7EOI - / - 9 Partial capture
07-23 19:20 20m -6 / -12 CR7BRV -3 / - 5 ✓ Closing observed
07-23 18:14 20m -16 / - ES7GN - / - 8 Partial capture
07-23 18:01 20m -19 / - TN8GD - / - 6 Partial capture
07-23 17:48 20m -15 / - JA0LFV -18 / -1 4 ✓ Closing observed
07-23 17:46 20m -16 / - A61DD - / - 2 Partial capture
07-23 17:28 20m -18 / -1 SV5AZK -12 / +4 7 ✓ Full exchange observed
07-23 17:26 20m -10 / - ES2AJ - / -25 2 ✓ Closing fragment
07-23 17:23 20m -20 / - TF3PPN - / - 2 Partial capture
07-23 17:21 20m -13 / - MW3FLI - / -14 3 ✓ Closing fragment
07-23 17:19 20m -14 / - 7X5SV - / - 2 Partial capture
07-23 17:17 20m -13 / - T77WD - / - 3 Partial capture
07-23 17:12 20m -16 / - ES7GN - / - 3 Partial capture
07-23 17:11 20m -11 / - HG0NPJ - / -23 2 ✓ Closing fragment
07-23 17:07 20m 0 / - EU4U - / -24 3 ✓ Closing fragment
07-23 17:04 20m -12 / -13 YO4NT -1 / - 4 ✓ Full exchange observed
07-23 09:51 40m - / -1 OE3DXA -13 / - 7 ✓ Closing fragment
07-23 09:17 40m - / -10 OE3DXA -7 / - 2 Partial capture
07-23 05:11 40m - / -4 HA3TBL -20 / - 2 ✓ Closing fragment
07-23 04:17 40m - / +5 SV7BAY -14 / - 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
031230 -17 2185  M1MPB YO9HP RR73
032445 -23 1660  M1MPB EC5M RR73
033400  -4 2186  M1MPB YO9HP -09
033430  +0 2662  M1MPB SP6JIU +04 (x3)
033815  +9 2913  M1MPB DM8KM +03 (x2)
204115  -9 2687  M1MPB DL5YT +03
210030  +0 2282  M1MPB R50RKZ -18 (x3)
013830 -21 2112  KF4AAF M1MPB IO83
022945 -22 2087  SV0LS M1MPB R-09 (x2)
20m
UTC    dB Audio  Message
175300 -17 1734  M1MPB A71CT -16 (x4)
180015 -24 1733  A71CT M1MPB 73
180100 -18 1734  M1MPB A71CT RR73
180330 -19 2324  OZ9FF M1MPB IO83
180345 -15 2324  M1MPB OZ9FF -09
180400 -16 2324  OZ9FF M1MPB IO83
180415 -17 2324  M1MPB OZ9FF -09
180430 -15 2323  OZ9FF M1MPB R-15
180830  -3 2950  <...> M1MPB IO83
194630 -16 1858  M1MPB 3A2MW +04 (x3)
10m
UTC    dB Audio  Message
102115 -12  676  M1MPB PE1NPS JO22 (x4)
094930 -10 1335  M1MPB OE9TFH -12 (x11)

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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