UA4CPM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UA4CPM, decoded by SO8OO in southeastern Poland. 1,010 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-16.
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 1,010 FT8 messages attributed to UA4CPM as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 20 m (31%) and 10 m (1%). Most decodes (86%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-16 03:22 UTC
Observed FT8 message patterns
- Attributed sample
- 1,010 messages
- Active dates
- 66 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -9 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 130, strong (≥ -8 dB) 875.
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 UA4CPM 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 UA4CPM
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
- LO32 · 686 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,769 km (approx.)
- Last such locator decoded
- 2026-10-16 03:22 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 | UA4CPM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 11:42 | 10m | - / - | PP5CF | -12 / - | 2 | ✓ Closing fragment |
| 10-16 03:19 | 40m | -8 / - | EA3IAZ | - / - | 2 | Partial capture |
| 10-16 03:17 | 40m | -4 / - | F6FHZ | - / -19 | 2 | ✓ Closing fragment |
| 10-16 03:15 | 40m | -10 / - | IZ1ANU | - / -5 | 3 | ✓ Closing fragment |
| 10-16 03:12 | 40m | -10 / - | RD5Q | - / -13 | 2 | Partial capture |
| 10-16 03:09 | 40m | -2 / - | YY5EHT | - / - | 3 | Partial capture |
| 10-16 03:07 | 40m | -8 / 0 | OH5KNL | -2 / -14 | 4 | ✓ Full exchange observed |
| 10-16 03:03 | 40m | -9 / - | WP3UX | - / - | 3 | Partial capture |
| 10-14 15:17 | 40m | -6 / - | R6FGF | - / +1 | 3 | ✓ Closing fragment |
| 10-14 15:15 | 40m | -5 / +3 | PA2WDR | -14 / -15 | 5 | ✓ Full exchange observed |
| 10-14 15:11 | 40m | -2 / - | DL0PS | +1 / -7 | 5 | ✓ Closing observed |
| 10-14 02:18 | 40m | 0 / -7 | EA3IAZ | -10 / -18 | 7 | ✓ Full exchange observed |
| 10-14 01:43 | 40m | +1 / - | RA4CEH/P | - / - | 3 | Partial capture |
| 10-14 01:39 | 40m | -9 / - | S57ACD | - / -15 | 3 | ✓ Closing fragment |
| 10-14 01:27 | 40m | - / +8 | ON3ANY | +3 / - | 3 | ✓ Closing fragment |
| 10-14 01:24 | 40m | -13 / - | EA5FD | -2 / -8 | 2 | ✓ Closing observed |
| 10-14 01:18 | 40m | -11 / +9 | DJ3HW | -11 / - | 8 | ✓ Closing observed |
| 10-14 01:17 | 40m | - / -14 | PV8AJ | -18 / - | 3 | ✓ Closing fragment |
| 10-14 01:13 | 40m | - / - | RD3FY | -7 / - | 4 | Partial capture |
| 10-14 01:13 | 40m | - / - | F6FHZ | -8 / - | 2 | Partial capture |
| 10-14 01:10 | 40m | -8 / +1 | RD9U | -4 / - | 3 | ✓ Closing observed |
| 10-11 14:40 | 40m | -4 / - | YC6HIR | - / - | 3 | Partial capture |
| 10-11 14:38 | 40m | -3 / +3 | EU4BE | -3 / -9 | 5 | ✓ Full exchange observed |
| 10-11 14:36 | 40m | -6 / - | RV9WJP | - / -12 | 2 | ✓ Closing fragment |
| 10-11 14:34 | 40m | -10 / - | R9FGJ | - / -7 | 2 | ✓ Closing fragment |
| 10-11 14:32 | 40m | -6 / +10 | RW6B | -8 / +2 | 4 | ✓ Full exchange observed |
| 10-11 14:30 | 40m | -3 / - | BG0FQU | - / -9 | 2 | ✓ Closing fragment |
| 10-11 14:27 | 40m | -3 / - | BG4UCZ | - / -15 | 3 | Partial capture |
| 10-11 14:26 | 40m | -4 / 0 | RA3RGQ | -6 / -3 | 4 | ✓ Full exchange observed |
| 10-11 14:24 | 40m | -8 / +9 | OH7UE | -12 / +1 | 4 | ✓ Full exchange observed |
| 10-08 02:21 | 40m | - / -15 | F5MOO | -9 / - | 3 | ✓ Closing fragment |
| 10-08 01:23 | 40m | 0 / - | UA9UFG | - / -11 | 2 | ✓ Closing fragment |
| 10-08 01:20 | 40m | -1 / -16 | PT7YB | -2 / -14 | 7 | ✓ Full exchange observed |
| 10-08 01:16 | 40m | -5 / - | HI8ML | - / - | 2 | Partial capture |
| 10-08 00:58 | 40m | -11 / - | WP4RRF | -10 / - | 2 | ✓ Closing observed |
| 10-07 03:05 | 40m | +2 / - | YY5EHT | - / - | 2 | Partial capture |
| 10-07 03:03 | 40m | +8 / -14 | RU4I | -2 / -14 | 4 | ✓ Full exchange observed |
| 10-07 02:59 | 40m | +10 / - | C5R | - / - | 8 | Partial capture |
| 10-05 02:36 | 40m | - / - | RK6OU | -22 / - | 2 | ✓ Closing fragment |
| 10-05 02:13 | 40m | 0 / - | IQ8DO | - / -4 | 3 | ✓ Closing fragment |
| 10-02 02:53 | 40m | 0 / - | W0JM | - / - | 2 | Partial capture |
| 10-01 03:22 | 40m | -13 / -4 | II5GG | -3 / -17 | 4 | ✓ Full exchange observed |
| 10-01 03:20 | 40m | -10 / - | GM6URC | -24 / - | 2 | ✓ Closing observed |
| 10-01 03:14 | 40m | -4 / -24 | KV3R | -12 / -18 | 8 | ✓ Full exchange observed |
| 09-29 02:56 | 40m | +10 / - | OZ4LAMA | - / - | 2 | Partial capture |
| 09-29 02:45 | 40m | +7 / - | SP100PKP | - / - | 6 | Partial capture |
| 09-29 02:37 | 40m | +2 / - | KF0NYM | - / - | 2 | Partial capture |
| 09-28 03:06 | 40m | 0 / -9 | EA7JHC | -10 / -14 | 4 | ✓ Full exchange observed |
| 09-28 02:58 | 40m | - / -12 | EA7LZ | 0 / - | 2 | ✓ Closing fragment |
| 09-28 02:52 | 40m | +1 / - | WK1O | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 132730 +1 2245 UA4CPM IV3IUM JN65 (x2) 114215 -14 1030 UA4CPM PP5CF RR73 (x2)
UTC dB Audio Message 030830 -1 2660 UA4CPM OH5KNL RR73 030945 -9 501 YY5EHT UA4CPM LO32 (x3) 031200 -9 500 RD5Q UA4CPM LO32 (x2) 031530 -9 500 IZ1ANU UA4CPM LO32 (x3) 031730 -1 499 F6FHZ UA4CPM -19 (x2) 031900 -6 498 EA3IAZ UA4CPM LO32 (x2) 032045 -7 497 K1QD UA4CPM LO32 032215 -9 498 YY5EHT UA4CPM LO32
UTC dB Audio Message 033245 +14 533 KD2BRV UA4CPM LO32 (x2) 033330 -12 533 UA4CPM KD2BRV RR73 033345 +15 533 KD2BRV UA4CPM 73 041300 +17 537 WH2T UA4CPM LO32 (x3) 033215 -14 2240 UA4CPM ZP5DBC -06 041830 -16 533 ZL2THM UA4CPM LO32 (x2) 042130 -11 531 VK3HA UA4CPM LO32 (x5)
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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