M9UUU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO71

Receiver-side FT8 activity involving M9UUU, decoded by SO8OO in southeastern Poland. 236 FT8 messages attributed to this token as transmitter, on 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-16 and 2026-08-19.

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 236 FT8 messages attributed to M9UUU as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (92%) 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 -12 dB.

Overview

236
Messages attributed
10
UTC dates decoded
40
Active 15-min windows
-12 dB
Estimated median S/N

Bands

20m · 236
First attributed message: 2026-07-16
Last attributed message: 2026-08-19 21:14 UTC

Observed FT8 message patterns

Attributed sample
236 messages
Active dates
10 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 74, moderate (-15 to -9 dB) 93, strong (≥ -8 dB) 69.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with M9UUU in decoded directed-looking exchanges:

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 M9UUU

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
IO71 · 181 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,883 km (approx.)
Last such locator decoded
2026-08-19 21:13 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 UTCBandM9UUU S/NCounterpartCounterpart S/NMsgsCapture
08-19 21:13 20m -6 / - WV2B -11 / -8 3 ✓ Closing observed
08-19 21:10 20m -11 / - D2ACE - / - 3 Partial capture
08-19 21:06 20m -4 / - TJ1GD - / -13 6 ✓ Closing fragment
08-19 21:04 20m -9 / - PP5HR - / - 3 Partial capture
08-14 15:55 20m -6 / - BG0DAP - / - 2 Partial capture
08-11 20:55 20m -20 / - DU3JH - / - 2 Partial capture
08-03 21:09 40m - / -10 PD1AC -16 / - 2 Partial capture
08-03 21:03 40m - / -4 F5PBG -13 / - 2 Partial capture
07-26 21:46 20m -12 / - PJ2VR - / - 2 Partial capture
07-24 21:02 20m - / -16 CX6TU -12 / - 2 ✓ Closing fragment
07-22 20:13 20m - / -17 9K2ES -15 / - 2 ✓ Closing fragment
07-22 15:51 20m - / -16 RL2F -10 / - 2 Partial capture
07-21 21:53 40m - / -11 UA4FKT +2 / - 4 ✓ Closing fragment
07-21 21:51 40m - / +8 PD0IFI -8 / - 2 Partial capture
07-21 21:43 40m - / -2 LA1AAA -8 / - 2 ✓ Closing fragment
07-21 21:32 40m - / - G4DBW -17 / - 2 Partial capture
07-21 21:28 40m - / -5 OE8DDX 0 / - 2 Partial capture
07-21 21:25 40m - / -12 UA3IAP -20 / - 2 ✓ Closing fragment
07-20 19:33 40m - / -12 S57AJ -11 / - 3 Partial capture
07-20 08:52 20m - / -16 F5RRS -6 / - 5 ✓ Closing fragment
07-19 08:47 20m - / -17 9A5E -5 / - 3 ✓ Closing fragment
07-18 22:58 20m -10 / -14 RA0AN -16 / - 2 Partial capture
07-18 22:47 20m -8 / - 5B4ARQ - / -25 6 Partial capture
07-18 22:40 20m -10 / - OD5ZZ - / - 2 Partial capture
07-18 22:36 20m -18 / - 7Z1BM - / - 3 Partial capture
07-18 22:34 20m -17 / - HL5BPF - / - 2 Partial capture
07-18 22:31 20m -8 / - OD5ZZ - / - 2 Partial capture
07-18 22:28 20m -4 / -11 EA8BYZ -10 / -10 5 Partial capture
07-18 22:26 20m -4 / - PW8BR - / - 2 Partial capture
07-18 22:23 20m -7 / -7 TA3V -4 / -10 5 ✓ Full exchange observed
07-18 22:21 20m -16 / - K5ATN - / - 2 Partial capture
07-18 22:11 20m -18 / -15 RM8T -3 / +1 3 Partial capture
07-18 22:07 20m -20 / - LU5FF - / - 4 Partial capture
07-18 21:47 20m -8 / - A41ZZ - / -21 2 Partial capture
07-18 21:44 20m -14 / - 7Z1BM - / - 3 Partial capture
07-18 21:31 20m -23 / -12 SV5BYP -13 / - 3 ✓ Closing observed
07-17 22:51 20m - / +4 R2AL -3 / - 4 ✓ Closing fragment
07-17 22:15 20m - / -16 YV5WL -12 / - 2 ✓ Closing fragment
07-17 22:03 20m - / -11 7X5CY -5 / - 3 Partial capture
07-17 21:48 20m - / -10 A71UN -10 / - 2 ✓ Closing fragment
07-17 21:25 20m -6 / - KR4CCY - / - 4 Partial capture
07-17 21:23 20m -4 / - TN8GD - / -6 3 ✓ Closing fragment
07-17 21:21 20m -13 / - 9A5MTV - / - 3 Partial capture
07-17 21:16 20m -20 / - EA8CII - / - 2 Partial capture
07-17 20:59 20m -16 / - N2BJ - / - 2 Partial capture
07-17 09:32 20m -18 / - OH1LA - / -14 2 ✓ Closing fragment
07-17 09:08 20m -23 / -13 IK4TVP -13 / -11 4 Partial capture
07-17 09:07 20m -18 / -13 E75W -16 / -12 4 ✓ Full exchange observed
07-17 09:01 20m - / -12 LZ1AAW -13 / - 2 ✓ Closing fragment
07-17 08:52 20m - / -3 OE3EHS -7 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
210545  -4 1282  PP5HR M9UUU IO71
210615  -5  601  TJ1GD M9UUU IO71 (x6)
211015  -7 1967  D2ACE M9UUU IO71 (x3)
211215  -9 1283  PP5HR M9UUU IO71
211300  -5  680  WV2B M9UUU IO71 (x2)
211415 -11  679  M9UUU WV2B RR73
212400  -8  735  M9UUU IU5HIU JN53
40m 
UTC    dB Audio  Message
213345  -9 1533  M9UUU UA4FKT LO23
214300  -6 2469  M9UUU LA1AAA -02 (x2)
215130  -6  827  M9UUU PD0IFI JO32 (x2)
215300  +0  825  M9UUU UA4FKT LO23 (x4)
210115 -14 2424  M9UUU SM7XON RR73
210315 -14 2424  M9UUU F5PBG IN78 (x2)
210900 -16 1968  M9UUU PD1AC JO22 (x2)
211030 -17 2423  M9UUU YO4NF RR73

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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