UA4LDP — 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 UA4LDP, decoded by SO8OO in southeastern Poland. 600 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.
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 600 FT8 messages attributed to UA4LDP as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (34%), followed by 20 m (21%) and 40 m (20%). Most decodes (85%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-10-23 18:33 UTC
Observed FT8 message patterns
- Attributed sample
- 600 messages
- Active dates
- 47 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -24 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 355, moderate (-15 to -9 dB) 187, strong (≥ -8 dB) 58.
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 UA4LDP 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 UA4LDP
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
- LO44 · 154 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,908 km (approx.)
- Last such locator decoded
- 2026-10-23 18:33 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 | UA4LDP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 18:29 | 80m | -11 / -2 | UA3VVA | +6 / 0 | 9 | ✓ Full exchange observed |
| 10-23 18:24 | 160m | - / -21 | DK7ZT | -8 / - | 5 | Partial capture |
| 10-23 18:11 | 160m | - / -11 | DK7ZT | -4 / - | 5 | Partial capture |
| 10-23 18:07 | 160m | - / -15 | RJ3DC | +3 / - | 3 | ✓ Closing fragment |
| 10-23 18:03 | 160m | - / - | IK0HBN | +16 / - | 2 | Partial capture |
| 10-23 17:57 | 160m | -23 / - | RV6ALM | -22 / -14 | 3 | ✓ Closing observed |
| 10-23 17:55 | 160m | -24 / - | R3BHK | -17 / +5 | 2 | ✓ Closing observed |
| 10-23 17:50 | 160m | - / -21 | RA6SA | -11 / - | 3 | ✓ Closing fragment |
| 10-23 17:33 | 160m | -18 / -18 | IK0HBN | +12 / -6 | 6 | Partial capture |
| 10-23 17:29 | 160m | -18 / -8 | UA1OLM | -14 / 0 | 4 | ✓ Full exchange observed |
| 10-23 17:18 | 80m | -2 / - | UA3VVA | - / - | 3 | Partial capture |
| 10-23 17:16 | 80m | -3 / -18 | OD5ZZ | -8 / -16 | 3 | ✓ Full exchange observed |
| 10-23 17:11 | 160m | - / +9 | RA3SI | -14 / - | 3 | ✓ Closing fragment |
| 10-23 16:32 | 160m | - / -6 | RA1WU | +1 / - | 2 | ✓ Closing fragment |
| 10-23 16:09 | 160m | - / - | RL9F | -22 / - | 2 | ✓ Closing fragment |
| 10-18 04:38 | 40m | - / -11 | R6KY | -10 / - | 2 | ✓ Closing fragment |
| 10-18 04:23 | 40m | - / 0 | RA3DAD | -14 / - | 2 | ✓ Closing fragment |
| 10-17 15:44 | 80m | -15 / - | RG8U | - / -1 | 2 | ✓ Closing fragment |
| 10-17 15:32 | 80m | -24 / -7 | R7AW | -6 / +8 | 3 | ✓ Full exchange observed |
| 10-17 15:29 | 80m | -22 / - | RK6OQ | - / +4 | 3 | Partial capture |
| 10-17 15:26 | 80m | -20 / - | R2BPS | - / -11 | 2 | Partial capture |
| 10-17 15:25 | 80m | -19 / - | UN0GY | -11 / -4 | 2 | ✓ Closing observed |
| 10-17 15:20 | 80m | -20 / - | R2OM | - / +1 | 2 | Partial capture |
| 10-17 15:17 | 80m | -20 / -10 | R7ZY | -14 / -1 | 4 | ✓ Full exchange observed |
| 10-17 15:15 | 80m | -20 / - | R8CEL | - / -11 | 3 | ✓ Closing fragment |
| 10-17 15:02 | 80m | -19 / - | UA3UCV | -12 / +4 | 2 | ✓ Closing observed |
| 10-16 18:50 | 160m | -23 / - | R2EA/P | - / -14 | 2 | Partial capture |
| 10-16 18:12 | 80m | - / - | RK6MC | -2 / - | 2 | ✓ Closing fragment |
| 10-16 17:44 | 160m | - / -10 | RW3DC | -14 / - | 2 | ✓ Closing fragment |
| 10-16 17:30 | 160m | - / -17 | RT6C | -6 / - | 2 | ✓ Closing fragment |
| 10-16 17:21 | 160m | - / -9 | RV3LO | -3 / - | 2 | ✓ Closing fragment |
| 10-16 17:08 | 160m | - / -22 | R3LG | -8 / - | 2 | ✓ Closing fragment |
| 10-16 16:27 | 160m | - / -10 | RA1QD | -11 / - | 2 | ✓ Closing fragment |
| 10-16 16:06 | 160m | - / +3 | RA3QTT | -14 / - | 2 | ✓ Closing fragment |
| 10-16 15:59 | 160m | - / -6 | UA6ASQ | -24 / - | 2 | ✓ Closing fragment |
| 10-16 15:55 | 160m | - / -7 | YL3CW | -6 / - | 2 | ✓ Closing fragment |
| 10-15 17:21 | 80m | - / -17 | R5BM/M | -9 / - | 4 | ✓ Closing fragment |
| 10-15 16:59 | 80m | - / -9 | R9CS/P | -2 / - | 2 | ✓ Closing fragment |
| 10-14 18:24 | 80m | -22 / 0 | R3NBL | -6 / +7 | 4 | ✓ Full exchange observed |
| 10-14 18:12 | 160m | - / -23 | DK7ZT | -1 / - | 4 | Partial capture |
| 10-14 18:00 | 160m | - / +3 | RJ6B | -11 / - | 3 | ✓ Closing fragment |
| 10-14 17:55 | 160m | - / -12 | R5ZJ | -1 / - | 2 | ✓ Closing fragment |
| 10-14 17:42 | 80m | - / -9 | R5BM/M | -17 / - | 2 | Partial capture |
| 10-14 17:38 | 160m | - / - | DL8OH | +12 / - | 3 | Partial capture |
| 10-14 17:09 | 80m | -23 / - | RV6AVU | - / +6 | 2 | Partial capture |
| 10-13 15:37 | 80m | - / -9 | RV6ALM | -16 / - | 2 | ✓ Closing fragment |
| 10-13 15:19 | 40m | -19 / +1 | R8CKV | -6 / -4 | 3 | ✓ Full exchange observed |
| 10-12 18:53 | 160m | - / -2 | R3HH | +2 / - | 2 | ✓ Closing fragment |
| 10-12 18:33 | 160m | - / -6 | UA6NT | -24 / - | 2 | ✓ Closing fragment |
| 10-12 18:22 | 160m | - / -18 | RX3DTN | -17 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171700 +0 1207 OD5ZZ UA4LDP RR73 171815 -7 1207 UA3VVA UA4LDP +12 (x3) 172130 -13 1206 UA4LDP RA9SBN R+04 182945 -10 1380 UA3VVA UA4LDP +00 (x3) 183100 +7 772 UA4LDP UA3VVA R-02 (x4) 183245 -15 1420 UA3VVA UA4LDP RR73 183300 +5 772 UA4LDP UA3VVA 73 183345 -23 1420 RA6Z UA4LDP LO44
UTC dB Audio Message 180330 +19 2398 UA4LDP IK0HBN JN62 (x2) 180700 +2 1452 UA4LDP RJ3DC KO95 (x3) 181130 -8 1758 UA4LDP DK7ZT -11 (x10)
UTC dB Audio Message 065345 -7 2139 UA4LDP SP5EXA R-18 070915 -15 1283 UA4LDP EU1AFX KO43 (x3) 151830 -10 409 UA4LDP R6DOB/M R+01 151900 -5 350 UA4LDP RR73; RW4HD <...> +06 151945 -19 1878 R8CKV UA4LDP -04 152000 -6 3052 UA4LDP R8CKV R+01 (x2) 152130 -22 1881 UA4LDP OS4K -02 142345 -23 1867 R1BNG/P UA4LDP -16 042345 -17 1404 UA4LDP RA3DAD R+00 (x2) 043815 -11 2080 UA4LDP R6KY R-11 (x2)
UTC dB Audio Message 121845 +0 2620 RC1BQ UA4LDP +02 (x3) 131145 -7 2012 UB1AXF UA4LDP +01 (x2) 131315 -11 2012 BG5CNL UA4LDP -05 (x2) 131445 -3 2012 CQ UA4LDP LO44 131515 -7 2012 PA3AGN UA4LDP -17 131530 -7 1179 UA4LDP PA3AGN R-10 131545 -4 2012 PA3AGN UA4LDP RR73 131845 +0 2011 MI0UFT UA4LDP -22 131930 -10 2487 UA4LDP RV9UAF -17 (x3)
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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