OM4ASM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OM4ASM, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-01.
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 55 FT8 messages attributed to OM4ASM as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 40 m (13%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (67%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +5 dB.
Overview
Bands
Last attributed message: 2026-09-01 19:28 UTC
Observed FT8 message patterns
- Attributed sample
- 55 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- +5 dB
- Estimated 10th-90th percentile
- -15 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 46.
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 OM4ASM 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 OM4ASM
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
- JN98 · 42 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 258 km (approx.)
- Last such locator decoded
- 2026-09-01 19:28 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 UTC | Band | OM4ASM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-01 19:28 | 80m | -2 / - | RI1FJL | - / - | 2 | Partial capture |
| 08-30 20:52 | 40m | - / - | 9A4ZM | +6 / - | 2 | Partial capture |
| 08-30 20:51 | 40m | +10 / - | HL5BPF | - / -11 | 3 | ✓ Closing fragment |
| 08-27 21:49 | 80m | +4 / - | RI1FJL | - / - | 27 | Partial capture |
| 08-27 17:35 | 20m | - / - | YC9GBQ | -2 / - | 2 | Partial capture |
| 08-27 17:34 | 20m | - / - | BH6QCT | -22 / - | 2 | Partial capture |
| 08-27 17:33 | 20m | - / - | F5PBG | -11 / - | 3 | Partial capture |
| 07-04 03:41 | 80m | +8 / - | GB2WWA | - / - | 3 | Partial capture |
| 07-04 03:32 | 80m | +1 / -4 | CR2WWA | -5 / -6 | 5 | ✓ Full exchange observed |
| 07-03 13:02 | 20m | - / -12 | GB2WWA | -4 / - | 3 | ✓ Closing fragment |
| 06-27 22:16 | 80m | +4 / - | <...> | - / -6 | 2 | Partial capture |
| 06-27 22:11 | 80m | - / - | MI0TMW | -17 / - | 3 | Partial capture |
| 06-27 22:11 | 80m | - / - | UA4FKT | +5 / - | 3 | Partial capture |
| 06-27 22:09 | 80m | +8 / -8 | <...> | +1 / -3 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 215845 +8 1260 RI1FJL OM4ASM JN98 (x15)
UTC dB Audio Message 205115 +12 710 HL5BPF OM4ASM JN98 (x3) 205230 +8 706 OM4ASM 9A4ZM JN86 (x2)
UTC dB Audio Message 130200 -6 2512 OM4ASM GB2WWA -12 (x3) 173330 -9 1379 OM4ASM F5PBG IN78 173400 -23 2157 OM4ASM BH6QCT PM01 173430 -10 1379 OM4ASM F5PBG IN78 173430 -20 2157 OM4ASM BH6QCT PM01 173500 -13 1380 OM4ASM F5PBG IN78 173530 -2 2582 OM4ASM YC9GBQ OI81 (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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