9A4N — 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 9A4N, decoded by SO8OO in southeastern Poland. 1,112 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,112 FT8 messages attributed to 9A4N as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 160 m (28%) and 80 m (24%). Most decodes (59%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-11-05 23:05 UTC
Observed FT8 message patterns
- Attributed sample
- 1,112 messages
- Active dates
- 62 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -12.1 to +14.9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 123, strong (≥ -8 dB) 928.
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 9A4N 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 9A4N
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
- JN75 · 700 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 708 km (approx.)
- Last such locator decoded
- 2026-11-05 23:02 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 | 9A4N S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 23:05 | 40m | -3 / - | RX9WM | - / -5 | 2 | ✓ Closing fragment |
| 11-05 23:02 | 40m | -4 / - | A92AE | - / - | 2 | ✓ Closing fragment |
| 11-05 23:00 | 40m | -4 / - | WA4CAS | - / -17 | 2 | Partial capture |
| 11-05 22:58 | 40m | +7 / - | CU5AQ | - / -18 | 3 | ✓ Closing fragment |
| 11-05 22:57 | 40m | +3 / -2 | ON1BH | -6 / -15 | 4 | ✓ Full exchange observed |
| 11-05 22:54 | 40m | +3 / - | HL2OII | - / -22 | 5 | ✓ Closing fragment |
| 11-05 22:52 | 40m | +4 / - | KB4LS | - / - | 2 | Partial capture |
| 11-05 22:50 | 40m | +2 / - | KC0REW | - / -18 | 4 | Partial capture |
| 11-05 22:44 | 40m | -4 / - | HS0ZOY | - / -13 | 5 | ✓ Closing fragment |
| 11-05 22:38 | 40m | -2 / - | 6M0U | - / - | 6 | Partial capture |
| 11-05 22:30 | 160m | +8 / - | W4JVN | - / -25 | 3 | ✓ Closing fragment |
| 11-05 22:28 | 160m | +7 / +3 | OH0Z | +15 / 0 | 6 | ✓ Full exchange observed |
| 11-04 18:23 | 160m | +5 / -15 | EW6CY | -12 / -20 | 6 | ✓ Full exchange observed |
| 11-04 18:22 | 160m | +4 / -9 | R3ZG | -8 / -22 | 4 | ✓ Full exchange observed |
| 11-04 18:22 | 160m | - / -17 | RU3GF | +4 / - | 3 | Partial capture |
| 11-04 18:20 | 160m | +2 / -6 | OZ5AGJ | -12 / -25 | 7 | ✓ Full exchange observed |
| 11-04 18:19 | 160m | +8 / - | RD7X | - / - | 2 | Partial capture |
| 11-04 18:16 | 160m | -15 / +5 | DJ0FX | -5 / - | 4 | Partial capture |
| 11-04 16:27 | 80m | - / - | SP5JMA | +2 / - | 2 | Partial capture |
| 11-04 16:24 | 80m | +9 / - | VK3BDL | - / -16 | 5 | Partial capture |
| 11-04 16:21 | 80m | +10 / - | VK6EI | - / - | 5 | Partial capture |
| 11-04 06:19 | 40m | -3 / - | DM6MAR | - / -12 | 2 | Partial capture |
| 11-04 06:19 | 40m | -7 / - | ON8WR | -2 / -3 | 4 | ✓ Closing observed |
| 11-04 06:18 | 40m | -4 / 0 | SP5KG | -2 / -9 | 4 | ✓ Full exchange observed |
| 11-04 06:16 | 40m | -3 / - | DA0M | -12 / -8 | 3 | ✓ Closing observed |
| 11-04 06:14 | 40m | -9 / - | ZZ5UNO | - / -23 | 4 | Partial capture |
| 11-04 06:09 | 80m | -2 / - | IS0AFM | - / - | 3 | Partial capture |
| 11-03 23:40 | 40m | -14 / -16 | PT7YB | -16 / -14 | 4 | ✓ Closing observed |
| 11-03 23:39 | 40m | -12 / - | N9CBW | - / -8 | 3 | ✓ Closing fragment |
| 11-03 23:37 | 40m | -14 / - | PV8AJ | - / -24 | 3 | ✓ Closing fragment |
| 11-03 23:16 | 40m | - / +3 | ON2AJ | -5 / - | 4 | Partial capture |
| 11-03 21:30 | 80m | +13 / -10 | JA0CRI | -4 / -13 | 5 | ✓ Full exchange observed |
| 11-03 21:29 | 80m | +8 / - | OZ1ODK | - / - | 2 | Partial capture |
| 11-03 20:51 | 160m | -9 / -8 | 8S2A | -12 / -15 | 5 | ✓ Full exchange observed |
| 11-03 20:49 | 160m | -9 / - | 5B4AMX | - / - | 3 | ✓ Closing fragment |
| 11-03 20:31 | 80m | +17 / - | R9CS/P | - / - | 3 | Partial capture |
| 11-02 00:00 | 80m | +8 / - | EA8AJ | -11 / -7 | 4 | ✓ Closing observed |
| 11-01 23:58 | 80m | +11 / - | PY6HD | - / - | 3 | Partial capture |
| 11-01 23:57 | 80m | -1 / - | EX7DY | - / -22 | 2 | ✓ Closing fragment |
| 11-01 22:37 | 160m | +4 / - | UA6HJT | -20 / -12 | 3 | ✓ Closing observed |
| 11-01 22:36 | 160m | +3 / - | OE8RPK | -16 / -13 | 4 | ✓ Closing observed |
| 11-01 17:54 | 160m | +4 / - | SQ3F | +12 / -2 | 4 | ✓ Closing observed |
| 11-01 17:50 | 160m | +2 / -10 | R6FFB | -4 / -16 | 4 | ✓ Full exchange observed |
| 11-01 17:48 | 160m | +5 / +9 | TK4RB | -21 / -11 | 8 | ✓ Full exchange observed |
| 11-01 17:36 | 40m | -1 / - | A93MO | - / - | 2 | Partial capture |
| 11-01 17:36 | 40m | 0 / - | RX9WM | -22 / -15 | 2 | Partial capture |
| 11-01 17:34 | 40m | -6 / - | BG7BVI | - / -17 | 3 | ✓ Closing fragment |
| 11-01 17:28 | 40m | -2 / - | 3A2LF | - / - | 2 | Partial capture |
| 10-31 21:41 | 160m | +11 / - | UN0GY | - / -23 | 3 | ✓ Closing fragment |
| 10-31 20:30 | 160m | -1 / - | UD8D | - / -19 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 225700 -5 2467 9A4N ON1BH -02 225715 +3 755 ON1BH 9A4N R-15 225730 -8 2467 9A4N ON1BH RR73 225745 +3 755 ON1BH 9A4N 73 225845 +7 755 CU5AQ 9A4N JN75 (x3) 230045 -5 1455 WA4CAS 9A4N JN75 (x2) 230230 +0 1456 9A4N M7LYG IO93 230245 -3 1455 A92AE 9A4N JN75 (x2) 230445 +1 1455 BG7IDX 9A4N -23 230515 -3 1455 RX9WM 9A4N -05 (x2)
UTC dB Audio Message 182315 +1 1203 EW6CY 9A4N JN75 (x2) 182430 -11 1614 9A4N EW6CY -15 182445 +5 1203 EW6CY 9A4N R-20 182500 -12 1613 9A4N EW6CY RR73 182515 +7 1203 EW6CY 9A4N 73 222845 +5 1203 OH0Z 9A4N JN75 (x2) 222930 +14 2559 9A4N OH0Z +03 222945 +10 1203 OH0Z 9A4N R+00 223000 +16 2559 9A4N OH0Z RR73 223015 +5 1203 OH0Z 9A4N 73 223045 +8 1203 W4JVN 9A4N JN75 (x3)
UTC dB Audio Message 061015 -3 2088 IS0AFM 9A4N JN75 (x2) 162130 -4 3192 VK6EI 9A4N JN75 (x5) 162430 +10 1716 VK3BDL 9A4N JN75 (x4) 162630 +11 1716 CQ 9A4N JN75 162700 +8 1715 VK3BDL 9A4N R-15 162715 +3 352 9A4N SP5JMA KO02 (x2)
UTC dB Audio Message 214945 -9 1971 7Q7EB 9A4N JN75 (x5) 215315 -5 1971 YV5AEZ 9A4N JN75 (x6) 215615 -8 1971 WB3JUV 9A4N JN75 (x2) 215715 -8 1971 HK4LGH 9A4N JN75 (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.
CW
2 CW reception events in the last 30 days.
- 40m: 2 events; last heard 2026-10-13 06:09 UTC
Latest CW receptions
| UTC | Band | kHz | S/N · 500 Hz | WPM | Listen |
|---|---|---|---|---|---|
| 2026-10-13 06:09:53 | 40m | 7033.041 | 14.8 dB | — | WebSDR ↗ |
| 2026-10-13 05:59:05 | 40m | 7033.041 | 18 dB | — | WebSDR ↗ |
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