OM3SX — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving OM3SX, decoded by SO8OO in southeastern Poland. 4,428 FT8 messages attributed to this token as transmitter, on 160m, across 21 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-11-05.
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 4,428 FT8 messages attributed to OM3SX as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (100%). Most decodes (78%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (95%); the estimated median was +8 dB.
Overview
Bands
Last attributed message: 2026-11-05 20:25 UTC
Observed FT8 message patterns
- Attributed sample
- 4,428 messages
- Active dates
- 21 UTC dates
- Estimated median S/N
- +8 dB
- Estimated 10th-90th percentile
- -3.5 to +16.7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 59, moderate (-15 to -9 dB) 154, strong (≥ -8 dB) 4,215.
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 OM3SX 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 OM3SX
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
- KN08 · 2,416 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 170 km (approx.)
- Last such locator decoded
- 2026-11-05 20:25 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 | OM3SX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 10:57 | 10m | - / -5 | RA9FEL | -3 / - | 3 | ✓ Closing fragment |
| 11-05 20:23 | 160m | - / -7 | SV8QG | -9 / - | 3 | ✓ Closing fragment |
| 11-05 20:20 | 160m | - / -7 | DF3IS | 0 / - | 3 | ✓ Closing fragment |
| 11-05 20:18 | 160m | - / +9 | DK6QW | -12 / - | 3 | ✓ Closing fragment |
| 11-05 20:03 | 160m | - / -4 | HB9EFK | +9 / - | 2 | ✓ Closing fragment |
| 11-05 20:01 | 160m | - / -4 | E70SZ | -10 / - | 2 | ✓ Closing fragment |
| 11-05 19:42 | 160m | - / -12 | F1PBZ | +5 / - | 3 | ✓ Closing fragment |
| 11-05 19:40 | 160m | - / -1 | RA6ABO | -9 / - | 6 | ✓ Closing fragment |
| 11-05 19:33 | 160m | - / -6 | US3LX | -16 / - | 3 | ✓ Closing fragment |
| 11-05 19:13 | 160m | +13 / +4 | OE2CAL | -6 / - | 3 | Partial capture |
| 11-05 19:11 | 160m | +10 / - | 9H1ES | - / - | 4 | Partial capture |
| 11-05 19:07 | 160m | +9 / - | OK1KKI | +3 / - | 6 | ✓ Full exchange observed |
| 11-05 18:58 | 160m | - / +7 | OH5KNL | +5 / - | 3 | ✓ Closing fragment |
| 11-05 18:30 | 160m | - / - | UA3PY/QRP | -14 / - | 2 | Partial capture |
| 11-05 18:29 | 160m | - / -1 | ER3UA | -7 / - | 3 | ✓ Closing fragment |
| 11-05 18:17 | 160m | - / 0 | ON6LEO | -1 / - | 2 | ✓ Closing fragment |
| 11-05 18:14 | 160m | - / +8 | DK9WI | -10 / - | 2 | ✓ Closing fragment |
| 11-05 18:07 | 160m | - / -10 | RA3ZH | +3 / - | 3 | ✓ Closing fragment |
| 11-05 18:04 | 160m | - / - | R2PM | -14 / - | 2 | Partial capture |
| 11-05 18:00 | 160m | - / 0 | SQ4AVD | +14 / - | 2 | ✓ Closing fragment |
| 11-05 16:48 | 160m | +4 / +1 | DJ0MDC | -4 / +1 | 6 | ✓ Full exchange observed |
| 11-05 16:47 | 160m | +3 / -9 | UI4I | -4 / -7 | 5 | ✓ Full exchange observed |
| 11-05 16:43 | 160m | +7 / +10 | DL9HK | -13 / -8 | 5 | ✓ Full exchange observed |
| 11-05 16:41 | 160m | +9 / -2 | OZ2LIN | -2 / +3 | 4 | ✓ Full exchange observed |
| 11-05 16:11 | 160m | +4 / +2 | OT4A | -14 / - | 5 | ✓ Full exchange observed |
| 11-05 07:06 | 160m | +2 / - | G3NSM | - / - | 2 | Partial capture |
| 11-05 07:02 | 160m | +3 / - | MD0CCE | - / -9 | 3 | ✓ Closing fragment |
| 11-05 07:02 | 160m | +4 / +2 | DF6DBF | -16 / 0 | 7 | ✓ Full exchange observed |
| 11-05 00:06 | 160m | +11 / - | VE9XX | - / -19 | 5 | ✓ Closing fragment |
| 11-05 00:05 | 160m | +16 / - | WT3Q | - / - | 2 | Partial capture |
| 11-05 00:02 | 160m | +19 / -10 | IK1BQD | +6 / -4 | 5 | ✓ Full exchange observed |
| 11-05 00:01 | 160m | +11 / +7 | 5B4AMX | -7 / +5 | 3 | Partial capture |
| 11-04 23:59 | 160m | +10 / - | EA5JK | - / - | 3 | Partial capture |
| 11-04 23:57 | 160m | +6 / - | R6UA | - / -17 | 3 | Partial capture |
| 11-04 23:56 | 160m | +7 / -16 | CT2GQA | -15 / -8 | 5 | ✓ Full exchange observed |
| 11-04 23:42 | 160m | +9 / -8 | W4JVN | -21 / -12 | 4 | ✓ Full exchange observed |
| 11-04 23:41 | 160m | +11 / - | WP4U | - / -19 | 6 | ✓ Closing fragment |
| 11-04 23:39 | 160m | +3 / +6 | DK9WI | +3 / +5 | 6 | ✓ Full exchange observed |
| 11-04 23:38 | 160m | +1 / -11 | EC4TR | -9 / -9 | 5 | ✓ Full exchange observed |
| 11-04 23:37 | 160m | +2 / - | W4JVN | - / - | 2 | Partial capture |
| 11-04 23:36 | 160m | +5 / - | WP4U | - / - | 2 | Partial capture |
| 11-04 19:21 | 160m | +10 / +5 | OK1FAN | -6 / -14 | 7 | ✓ Full exchange observed |
| 11-04 19:20 | 160m | +8 / - | JA0MVW | - / -17 | 6 | ✓ Closing fragment |
| 11-04 19:19 | 160m | +15 / - | DG0OFT | -2 / -1 | 5 | ✓ Full exchange observed |
| 11-04 19:17 | 160m | - / -5 | SP9HAB | -3 / - | 4 | Partial capture |
| 11-04 19:14 | 160m | +10 / - | OM5CX | +5 / +4 | 5 | ✓ Full exchange observed |
| 11-04 19:14 | 160m | - / - | DL6NDX | -6 / - | 2 | Partial capture |
| 11-04 19:12 | 160m | +7 / -3 | R6LE | -8 / -10 | 3 | ✓ Full exchange observed |
| 11-04 19:11 | 160m | +10 / +9 | G3YBO | -15 / - | 4 | Partial capture |
| 11-04 19:08 | 160m | +18 / 0 | EA3AJI | -2 / -3 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 070545 -11 657 OM3SX SV2CLJ RR73 074300 -7 2347 OM3SX DL8TV -02 (x2) 080545 -1 2345 OM3SX IZ3BUR +06 (x4) 080945 -17 1969 OM3SX OZ3AAF 73 082115 +2 519 OM3SX IV3KZF JN66 083000 -4 2638 OM3SX F4MLW -01 (x2) 152515 +1 2978 OM3SX DG6FFS RR73 105730 -4 857 OM3SX RA9FEL LO88 (x3)
UTC dB Audio Message 200215 -10 1429 OM3SX E70SZ RR73 200345 +11 2318 OM3SX HB9EFK -04 (x2) 201845 -9 983 OM3SX DK6QW R+09 (x3) 202045 -1 1623 OM3SX DF3IS -07 (x3) 202245 -2 414 OM3SX SP9HAB RRR 202315 -10 2150 OM3SX SV8QG KM39 (x3) 202500 +14 313 UN0GY OM3SX KN08 204115 -24 1869 OM3SX R6OBN 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.
CW
3 CW reception events in the last 30 days.
- 160m: 3 events; last heard 2026-11-05 20:13 UTC
Latest CW receptions
| UTC | Band | kHz | S/N · 500 Hz | WPM | Listen |
|---|---|---|---|---|---|
| 2026-11-05 20:13:03 | 160m | 1830.429 | 16.7 dB | 21.5 | WebSDR ↗ |
| 2026-10-07 16:34:47 | 160m | 1830.459 | 16.3 dB | 21.6 | WebSDR ↗ |
| 2026-10-07 16:30:55 | 160m | 1830.459 | 15.2 dB | 21.5 | WebSDR ↗ |
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