4O7DX — 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 4O7DX, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-09 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 41 FT8 messages attributed to 4O7DX as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 80 m (24%) and 20 m (10%). Most decodes (78%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-09-01 17:26 UTC
Observed FT8 message patterns
- Attributed sample
- 41 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -17 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 18.
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 4O7DX 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 4O7DX
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
- JN92 · 18 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 854 km (approx.)
- Last such locator decoded
- 2026-09-01 17:24 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 | 4O7DX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-01 17:22 | 80m | 0 / -15 | 9V1YC | -9 / -9 | 9 | ✓ Full exchange observed |
| 08-29 22:06 | 40m | - / - | R4UR | -6 / - | 2 | Partial capture |
| 08-29 22:01 | 40m | - / - | DL9PN | +13 / - | 3 | Partial capture |
| 08-29 22:01 | 40m | - / - | EA5HM | -1 / - | 5 | Partial capture |
| 08-29 22:01 | 40m | - / - | PA0APR | 0 / - | 2 | Partial capture |
| 08-29 22:00 | 40m | - / - | DA1EA | -7 / - | 5 | ✓ Closing fragment |
| 08-29 21:57 | 40m | - / +3 | HB9IOI | +16 / - | 6 | ✓ Closing fragment |
| 08-16 07:10 | 10m | - / - | DD7DAC | +2 / - | 4 | Partial capture |
| 08-10 02:09 | 80m | - / - | RX6DA | +13 / - | 18 | Partial capture |
| 08-10 02:09 | 80m | - / - | UA4FKT | -3 / - | 3 | Partial capture |
| 08-10 02:07 | 80m | +18 / - | CA6SNT | - / -9 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 021545 +12 1428 4O7DX RX6DA KN85 (x6) 172245 +6 1335 9V1YC 4O7DX JN92 (x3) 172500 -9 740 4O7DX 9V1YC -15 172515 -1 1335 9V1YC 4O7DX R-09 172530 -8 740 4O7DX 9V1YC RR73 172545 -3 1335 9V1YC 4O7DX R-09 172600 -10 740 4O7DX 9V1YC RR73 172615 -3 1335 9V1YC 4O7DX 73
UTC dB Audio Message 220115 -6 2346 4O7DX DC7MA JN39 220115 -6 2381 4O7DX DA1EA JO31 220145 +2 2584 4O7DX PA0APR JO22 220145 -1 1499 4O7DX EA5HM IM99 220145 +12 2769 4O7DX DL9PN JN39 220145 -6 2381 4O7DX DA1EA JO31 220215 +0 1499 4O7DX EA5HM IM99 220215 -7 2381 4O7DX DA1EA R+13 220245 +1 1500 4O7DX EA5HM IM99 220245 +11 2769 4O7DX DL9PN JN39 220245 -12 2381 4O7DX DA1EA 73 220315 +0 1500 4O7DX EA5HM IM99 220645 -4 1579 4O7DX R4UR LO24 (x3)
UTC dB Audio Message 071030 -6 488 4O7DX DD7DAC JO31 (x4)
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
No CW receptions recorded for this callsign in the last 30 days.
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