ON8MA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON8MA, decoded by SO8OO in southeastern Poland. 1,143 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 35 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-09-12.

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 1,143 FT8 messages attributed to ON8MA as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (34%) and 80 m (16%). The busiest six-hour window was 16:00-22:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,143
Messages attributed
35
UTC dates decoded
198
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 182 40m · 389 20m · 572
First attributed message: 2026-07-24
Last attributed message: 2026-09-12 09:47 UTC

Observed FT8 message patterns

Attributed sample
1,143 messages
Active dates
35 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 206, moderate (-15 to -9 dB) 403, strong (≥ -8 dB) 534.

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 ON8MA 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 ON8MA

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
JO10 · 664 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,335 km (approx.)
Last such locator decoded
2026-09-12 09:47 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 UTCBandON8MA S/NCounterpartCounterpart S/NMsgsCapture
09-12 09:50 40m - / -12 DG0AM -8 / - 2 ✓ Closing fragment
09-12 09:37 40m -18 / - M7NWN - / +7 4 Partial capture
09-11 17:25 80m -8 / -10 DL1JEL +12 / - 4 Partial capture
09-11 17:23 80m - / +1 DO2KMB -8 / - 2 ✓ Closing fragment
09-10 18:41 80m - / +9 ON5MX -10 / - 4 ✓ Closing fragment
09-10 18:35 80m -14 / -24 DO9POL -15 / -3 5 ✓ Full exchange observed
09-10 18:31 80m -12 / - IN3WZS - / - 2 ✓ Closing fragment
09-10 18:21 80m -17 / -14 DO7MRC -7 / - 4 ✓ Closing observed
09-10 18:14 80m -13 / - R4HHN - / - 3 Partial capture
09-10 18:13 80m -8 / -11 RA2FU -3 / - 5 ✓ Closing observed
09-10 18:11 80m - / -15 OK1GZ +10 / - 2 ✓ Closing fragment
09-08 18:53 40m - / -8 OE3PBS +10 / - 2 ✓ Closing fragment
09-08 18:37 40m - / +3 S57AM -8 / - 2 ✓ Closing fragment
09-08 18:33 40m -4 / -17 HB9EFK +6 / +3 5 ✓ Full exchange observed
09-08 18:30 40m -1 / -4 EI8GS +1 / - 3 ✓ Closing observed
09-08 18:27 40m -3 / -15 SQ1RTU +4 / +2 5 ✓ Full exchange observed
09-08 18:20 40m -7 / -9 RL2F -10 / +3 7 ✓ Full exchange observed
09-08 18:15 40m -5 / - IH9/IT9JUI - / - 2 Partial capture
09-08 18:13 40m -9 / -8 DF0GDX +25 / - 4 ✓ Full exchange observed
09-03 20:44 80m - / -17 ON6LR -13 / - 2 Partial capture
09-03 12:18 40m - / -2 DF0AWG 0 / - 2 ✓ Closing fragment
09-02 19:03 80m - / -22 SP9ENV +5 / - 3 ✓ Closing fragment
09-02 07:04 40m -12 / - M9SDD - / - 2 Partial capture
09-02 07:00 40m -16 / - EG1PDA - / -3 2 ✓ Closing fragment
09-02 05:35 80m - / -7 DL1UDO -24 / - 2 ✓ Closing fragment
09-02 05:32 80m - / -8 DM1MT -12 / - 2 Partial capture
09-01 18:40 80m -10 / - RA3SO - / - 2 Partial capture
09-01 18:04 40m -11 / - R4PFY - / - 2 Partial capture
09-01 17:56 40m -3 / - MI5JYK - / - 2 Partial capture
09-01 17:37 40m -6 / +2 DF8RU +6 / - 3 ✓ Closing observed
09-01 17:29 40m -7 / - G4SPE - / -3 3 ✓ Closing fragment
09-01 17:26 40m -9 / - MM5WJF/P - / - 2 Partial capture
09-01 17:18 40m -10 / - UB0AMB - / -14 2 Partial capture
09-01 17:13 40m -17 / - F4NFM - / - 3 Partial capture
09-01 17:01 40m -17 / - DL4ME +8 / - 3 ✓ Closing observed
09-01 16:59 40m -14 / -13 SQ6RT -5 / -13 4 ✓ Full exchange observed
09-01 16:58 40m -24 / -17 SP7EL -4 / - 4 ✓ Closing observed
09-01 16:55 40m -14 / -19 R3KLE +4 / -12 5 ✓ Full exchange observed
09-01 16:49 40m -18 / +1 M0BJL -12 / - 3 ✓ Full exchange observed
09-01 16:48 40m - / +3 DD7NT -3 / - 2 ✓ Closing fragment
09-01 16:41 40m -14 / - M7KBB - / - 2 Partial capture
09-01 16:39 40m - / -7 OE2CAL +9 / - 2 ✓ Closing fragment
09-01 15:20 40m -19 / - M9ORB - / - 2 Partial capture
09-01 15:17 40m -15 / -14 SQ9DJQ +4 / -21 5 ✓ Full exchange observed
09-01 15:10 40m -10 / - M0BJL - / - 3 Partial capture
09-01 06:32 40m -20 / - EA7PY - / - 2 Partial capture
08-31 06:43 20m -17 / - SQ8LUU - / +7 3 ✓ Closing fragment
08-31 06:39 20m -6 / - RU6UR - / - 2 Partial capture
08-31 06:32 40m -20 / - GM4YMI - / - 2 Partial capture
08-31 06:28 40m -13 / - GM0VMV -14 / - 2 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
183945  -4 2026  ON8MA RA2FCF -12
184315 -14 1680  ON8MA S57AM RR73
184530  -3 2751  S59A ON8MA JO10
184700  -6 2881  IK4RVY ON8MA JO10
185315 +12 1857  ON8MA OE3PBS -08 (x2)
184830  +1 2645  UA6EC ON8MA JO10
093730 -16 2443  M7NWN ON8MA JO10 (x4)
094330 -17 1373  ON3VNE ON8MA 73
094730 -18 1178  F4NKP ON8MA JO10
095015  -8 1939  ON8MA DG0AM -12 (x2)
80m 
UTC    dB Audio  Message
183545 -13 1175  ON8MA DO9POL -24 (x3)
183915 -24 1559  ON5MX ON8MA JO10
184130  -6 1296  ON8MA ON5MX +09 (x4)
172315  -9 1077  ON8MA DO2KMB +01 (x2)
172530  -9 2541  DL1JEL ON8MA JO10 (x2)
172645 +10  275  ON8MA DL1JEL -10 (x2)
172930  -9 2405  SQ2JDM ON8MA JO10
20m 
UTC    dB Audio  Message
180245 -16 2643  RM6OS ON8MA R-04
180345 -14  875  LZ2CC ON8MA JO10
180845  -9 2744  R4FDK ON8MA R-05
181245 -19 1312  UF4S ON8MA JO10
181530  -6 2790  <...> ON8MA JO10
063530  -6 2672  UR3VCJ ON8MA JO10
063630 -12 2671  9A5WA ON8MA JO10
063845 -11  533  ER1SKI/QRP ON8MA R-11
063945 -10  531  RU6UR ON8MA JO10 (x2)
064345 -23 1828  SQ8LUU ON8MA JO10 (x3)
064645 -18  905  SQ9ONX ON8MA JO10 (x2)

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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