M7YDM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO84

Receiver-side FT8 activity involving M7YDM, decoded by SO8OO in southeastern Poland. 195 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-27.

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 195 FT8 messages attributed to M7YDM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 40 m (7%). Most decodes (80%) 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 -9 dB.

Overview

195
Messages attributed
8
UTC dates decoded
32
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 14 20m · 181
First attributed message: 2026-06-09
Last attributed message: 2026-08-27 19:36 UTC

Observed FT8 message patterns

Attributed sample
195 messages
Active dates
8 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-16 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 95.

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 M7YDM 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 M7YDM

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
IO84 · 69 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,753 km (approx.)
Last such locator decoded
2026-08-27 19:35 UTC

Other locator fields attributed to this token: IO76 (8).

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 UTCBandM7YDM S/NCounterpartCounterpart S/NMsgsCapture
08-27 19:35 40m -14 / -5 2E0IJC -4 / - 4 ✓ Full exchange observed
08-27 19:35 40m - / +2 DK7ZT -3 / - 3 Partial capture
08-27 19:35 40m - / - LZ2VQ -1 / - 2 Partial capture
08-27 19:33 40m -17 / -7 DJ0MAB -3 / - 4 ✓ Closing observed
08-27 19:31 40m - / - F5RRS +1 / - 5 Partial capture
08-27 19:29 40m -17 / - MM7NZJ -16 / 0 3 Partial capture
08-27 19:25 40m - / 0 DK7ZT 0 / - 3 Partial capture
08-27 19:24 40m -16 / - G3EKY - / -16 2 ✓ Closing fragment
08-21 12:33 20m - / -1 OZ/DL1JGR -14 / - 2 Partial capture
08-21 12:30 20m -10 / -7 OZ5ABO -23 / -5 3 Partial capture
08-21 12:11 20m - / -11 PD1SCO -20 / - 3 ✓ Closing fragment
08-21 12:03 20m -16 / - DG1AS - / -11 3 Partial capture
08-21 12:02 20m -12 / - PD1HBL - / -4 2 ✓ Closing fragment
08-21 12:02 20m - / - DF2JK -18 / - 2 Partial capture
08-21 11:57 20m - / -21 DL1YS -8 / - 6 ✓ Closing fragment
08-21 11:55 20m - / -13 F4FSY -14 / - 2 ✓ Closing fragment
08-21 11:42 20m -18 / - OS4K - / -6 2 ✓ Closing fragment
08-20 19:17 20m -22 / - EA5IHI - / -8 2 Partial capture
08-20 19:12 20m - / -2 DL7GAL -8 / - 3 ✓ Closing fragment
08-01 21:28 20m -18 / - TN8GD - / - 2 Partial capture
08-01 21:22 20m -12 / - TN8GD - / - 2 Partial capture
08-01 21:21 20m -10 / -17 KZ2I -14 / -5 4 Partial capture
08-01 21:11 20m - / - NR1R -12 / - 2 Partial capture
08-01 20:22 20m - / -13 3A2MW -11 / - 3 Partial capture
07-25 18:16 20m -6 / - JA1BJY - / -18 2 Partial capture
07-25 18:09 20m - / - DG0WOL -11 / - 4 Partial capture
07-25 18:02 20m -1 / - E25RMW - / -13 4 ✓ Closing fragment
07-25 18:00 20m -2 / - JA1BJY - / -18 4 Partial capture
07-25 17:59 20m - / +5 EA4T -8 / - 3 Partial capture
07-25 17:56 20m -6 / - G4ELZ - / -17 6 Partial capture
07-25 17:53 20m -6 / - SM2SCK - / -16 2 Partial capture
07-25 17:51 20m -5 / - OZ7CL - / +3 3 Partial capture
07-25 17:49 20m +2 / -6 EB5AL +2 / - 3 Partial capture
07-25 17:47 20m - / +5 F1PPH -6 / - 3 ✓ Closing fragment
07-25 17:40 20m - / -13 OH8MBU -11 / - 3 ✓ Closing fragment
07-25 17:39 20m - / +5 OH3MB -16 / - 2 Partial capture
07-25 17:37 20m - / - OH8MBU -16 / - 2 Partial capture
07-25 17:36 20m - / - DL4PJ -7 / - 4 Partial capture
07-25 17:34 20m - / 0 PD1CW -6 / - 2 Partial capture
07-25 17:25 20m - / -17 EA4T -13 / - 3 Partial capture
07-25 17:22 20m -8 / -17 DD1LD -8 / -15 3 Partial capture
07-25 17:14 20m -14 / -20 F4CWQ -14 / -11 3 ✓ Full exchange observed
07-25 17:11 20m - / -9 EA4T -14 / - 2 Partial capture
07-25 17:11 20m -8 / - DL4GHS - / +1 2 Partial capture
07-25 17:09 20m -4 / -2 M7INZ -14 / -6 3 Partial capture
07-25 17:07 20m -2 / - HB9DLT - / -17 2 Partial capture
07-25 17:07 20m - / - DL1R -4 / - 6 Partial capture
07-25 17:04 20m -6 / - DG4HZ - / - 2 Partial capture
07-25 17:03 20m - / -4 EA4T -18 / - 3 Partial capture
07-25 17:01 20m - / - I5UOA -20 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
193330  -4 1409  M7YDM DJ0MAB R-07
193345 -17  909  DJ0MAB M7YDM RRR
193400  -8 1410  M7YDM DJ0MAB 73
193415 -18  909  CQ M7YDM IO84                         a1 (x2)
193500  -2  909  M7YDM LZ2VQ KN23
193515 -13  909  CQ M7YDM IO84
193530  +0  910  M7YDM LZ2VQ KN23
193530  -5 1906  M7YDM DK7ZT +02
193545 -13  909  2E0IJC M7YDM +18
193600  -2 1905  M7YDM DK7ZT +02
193600  -5  909  M7YDM 2E0IJC R-05
193615 -16  909  2E0IJC M7YDM RRR
193630  -2 1905  M7YDM DK7ZT +02
193630  -4  909  M7YDM 2E0IJC 73
20m 
UTC    dB Audio  Message
120945 -15 1555  2E0OEW M7YDM -04
121100 -19 1700  M7YDM PD1SCO JO22 (x3)
121600 -19 1422  M7YDM PD4RJ 73
121715 -16 1555  SP6JIU M7YDM IO76
122545 -12 1555  R1CBW M7YDM -05
123015 -11 1555  OZ5ABO M7YDM IO76
123030 -23 1959  M7YDM OZ5ABO -07
123215  -9 1555  OZ5ABO M7YDM -05
123315 -12 1555  <...> M7YDM -05
123330 -15 1851  M7YDM OZ/DL1JGR R-01 (x2)
123845  -1 1555  F4MFS M7YDM IO76
123915  -6 1555  W4PSK M7YDM IO76

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee