YO8XMD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN37

Receiver-side FT8 activity involving YO8XMD, decoded by SO8OO in southeastern Poland. 98 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-21.

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 98 FT8 messages attributed to YO8XMD as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (90%), followed by 40 m (9%) and 10 m (1%). Several six-hour UTC windows tied for the largest share (52%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -1 dB.

Overview

98
Messages attributed
14
UTC dates decoded
27
Active 15-min windows
-1 dB
Estimated median S/N

Bands

40m · 9 20m · 88 10m · 1
First attributed message: 2026-06-13
Last attributed message: 2026-08-21 18:26 UTC

Observed FT8 message patterns

Attributed sample
98 messages
Active dates
14 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-21 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 60.

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 YO8XMD 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 YO8XMD

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
KN37 · 51 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
468 km (approx.)
Last such locator decoded
2026-08-20 14:28 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 UTCBandYO8XMD S/NCounterpartCounterpart S/NMsgsCapture
08-21 18:23 20m -22 / - BH4ECL - / -2 2 ✓ Closing fragment
08-21 18:23 20m - / -17 D2UY -6 / - 4 Partial capture
08-21 11:27 10m - / -15 DN9OPA +6 / - 2 ✓ Closing fragment
08-15 06:34 20m - / -6 5B4AMX -12 / - 2 ✓ Closing fragment
08-13 10:56 10m - / -8 F4FSY -6 / - 3 ✓ Closing fragment
08-12 12:50 10m - / +5 LX1NO +2 / - 2 Partial capture
08-03 14:47 20m +6 / - DL1HXA - / 0 2 ✓ Closing fragment
08-03 14:46 20m +3 / - PD5GO -24 / -20 2 Partial capture
08-03 14:44 20m +6 / - RG3H - / -9 3 ✓ Closing fragment
08-03 14:41 20m +5 / - <...> - / -3 3 Partial capture
07-23 12:08 20m - / 0 IK4LZH +3 / - 3 ✓ Closing fragment
07-22 18:14 20m - / - BI4XDT 0 / - 2 ✓ Closing fragment
07-22 14:50 20m - / -10 RA0UB -13 / - 2 ✓ Closing fragment
07-22 14:48 20m - / +3 DK5DW -10 / - 3 ✓ Closing fragment
07-19 16:48 20m +6 / - <...> - / -25 4 Partial capture
07-19 16:32 20m +5 / - <...> - / - 5 Partial capture
07-19 16:27 20m -2 / - <...> - / - 2 Partial capture
07-19 16:24 20m +2 / - <...> - / - 2 Partial capture
07-15 20:29 20m - / - EB5AFK +4 / - 2 ✓ Closing fragment
07-15 20:07 20m -17 / +1 4O4DB -13 / - 3 ✓ Closing observed
07-15 19:46 40m -17 / - RN6MA - / - 2 ✓ Closing fragment
07-15 19:42 40m -13 / +1 HG8LXL -4 / +8 6 ✓ Full exchange observed
07-15 11:37 20m -8 / - EB3FRN - / +4 2 ✓ Closing fragment
07-15 11:17 20m 0 / - PA8S -11 / -3 3 ✓ Closing observed
07-15 11:15 20m +3 / - RW9AD - / -13 2 ✓ Closing fragment
07-14 11:10 20m +8 / - M8IYL - / +4 3 ✓ Closing fragment
07-14 10:58 20m +5 / -5 IQ4JO 0 / +5 4 ✓ Full exchange observed
07-14 10:53 20m +7 / - F1PPH - / -12 2 ✓ Closing fragment
07-13 12:07 20m -14 / - ZC4RH - / - 4 Partial capture
07-13 11:28 20m -23 / - ZC4RH - / - 3 Partial capture
07-11 18:38 20m - / - 9K2YM -8 / - 2 ✓ Closing fragment
07-07 18:51 20m - / -14 RY7G -10 / - 2 ✓ Closing fragment
07-03 19:26 10m - / +3 IW2MYH +7 / - 3 ✓ Closing fragment
07-03 19:25 10m - / -6 CE2SV -2 / - 2 ✓ Closing fragment
07-03 18:58 20m - / - M1DYU -24 / - 2 Partial capture
07-02 10:46 10m - / +9 RW6HP -15 / - 3 ✓ Closing fragment
06-21 18:07 20m -17 / - V51PJ - / -24 2 ✓ Closing fragment
06-21 18:06 20m -12 / - TA3XEE - / -23 2 ✓ Closing fragment
06-21 18:03 20m -19 / - C91RU - / -19 3 ✓ Closing fragment
06-20 07:33 20m - / -16 EB3JT -11 / - 3 ✓ Closing fragment
06-18 07:42 10m - / -2 R6FX -12 / - 2 Partial capture
06-18 07:41 10m - / -3 RU3DNN -3 / - 4 ✓ Closing fragment
06-16 11:08 10m - / -20 R6FMF -9 / - 3 Partial capture
06-16 09:47 20m - / -4 ZA5G +1 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
080300 -13 2242  OH0ERF YO8XMD KN37 (x2)
063430 -10 1779  YO8XMD 5B4AMX -06 (x2)
142845  -2 1844  CQ YO8XMD KN37
143030 -11 1872  YO8XMD G4YTW IO81
182330 -24 1668  BH4ECL YO8XMD -02
182330  -8 1753  YO8XMD D2UY -17
182400 -21 1668  BH4ECL YO8XMD RR73
182400  -3 1753  YO8XMD D2UY -17
182430 -24 1668  BH4UTT YO8XMD -15
182430  -5 1753  YO8XMD D2UY -17
182500 -23 1668  BD6IIC YO8XMD R-07
182500 -10 1752  YO8XMD D2UY -17
182630 -14 1668  DS2MGT YO8XMD R-16
10m 
UTC    dB Audio  Message
192500  +0 2558  YO8XMD CE2SV -06 (x2)
192600  +6  514  YO8XMD IW2MYH JN45 (x3)
120100  -2  645  YO8XMD GJ0KYZ RR73
185145 -24 1597  VP5G YO8XMD KN37
100600  -2 2345  YO8XMD E75W RR73
125030  +3 1405  YO8XMD LX1NO +05 (x2)
105615  -9 1775  YO8XMD F4FSY -08 (x3)
112745  +8 2892  YO8XMD DN9OPA R-15 (x2)
40m 
UTC    dB Audio  Message
194215 -19 1472  YO9PH YO8XMD 73
194230  -7  785  YO8XMD HG8LXL KN06 (x2)
194315 -12 1496  HG8LXL YO8XMD +08
194330  -2  785  YO8XMD HG8LXL R+01
194345 -14 1496  HG8LXL YO8XMD RR73
194400  -3  785  YO8XMD HG8LXL 73
194415 -19 1497  CQ JA YO8XMD KN37
194445 -17 1497  R1AI YO8XMD R-10
194545  -9 1497  CQ JA YO8XMD KN37
194615 -19 1497  RN6MA YO8XMD R+13 (x2)
194715 -22 1497  JH2VVH YO8XMD KN37

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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