NA3M — 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 NA3M, decoded by SO8OO in southeastern Poland. 418 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-10-15.
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 418 FT8 messages attributed to NA3M as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 80 m (38%) and 20 m (14%). Most decodes (90%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-10-15 02:56 UTC
Observed FT8 message patterns
- Attributed sample
- 418 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -22 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 204, moderate (-15 to -9 dB) 169, strong (≥ -8 dB) 45.
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 NA3M 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 NA3M
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
- FM19 · 267 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,310 km (approx.)
- Last such locator decoded
- 2026-10-15 02:55 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 | NA3M S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 22:01 | 40m | - / -10 | R4ZZ | -15 / - | 4 | Partial capture |
| 10-16 00:30 | 40m | - / -6 | F5NBU | +17 / - | 3 | ✓ Closing fragment |
| 10-16 00:30 | 40m | - / -13 | IZ8EYN | -12 / - | 4 | Partial capture |
| 10-16 00:28 | 40m | - / -18 | EI3CTB | -1 / - | 4 | Partial capture |
| 10-16 00:27 | 40m | - / -22 | 4S7AB | -10 / - | 2 | ✓ Closing fragment |
| 10-15 02:53 | 40m | -17 / -23 | EP2AES | -14 / - | 6 | ✓ Closing observed |
| 10-10 03:43 | 80m | - / -12 | TK1CX | +4 / - | 2 | Partial capture |
| 10-04 00:09 | 80m | - / -9 | C5R | -24 / - | 2 | Partial capture |
| 10-04 00:05 | 80m | - / -11 | C5R | -24 / - | 2 | Partial capture |
| 09-27 21:56 | 40m | - / - | RR73; | +1 / - | 3 | Partial capture |
| 09-27 21:54 | 40m | -22 / -12 | ZC4OL | +4 / - | 2 | Partial capture |
| 09-24 03:28 | 80m | - / - | US7KC | +9 / - | 3 | Partial capture |
| 09-24 03:27 | 80m | - / -24 | R5DT | -8 / - | 3 | ✓ Closing fragment |
| 09-24 03:12 | 80m | - / - | US7KC | +14 / - | 3 | Partial capture |
| 09-24 03:09 | 80m | -23 / -20 | RC6OU | -3 / -12 | 7 | ✓ Full exchange observed |
| 09-24 03:09 | 80m | - / - | SM5DIC | -2 / - | 7 | Partial capture |
| 09-24 03:04 | 80m | -21 / - | RN2F | - / - | 5 | Partial capture |
| 09-24 02:57 | 80m | -13 / -14 | UA6ASQ | -4 / - | 4 | Partial capture |
| 09-23 04:04 | 160m | - / -13 | DM9LSB | -8 / - | 5 | Partial capture |
| 09-23 04:04 | 160m | - / -5 | F4BKV | +6 / - | 2 | ✓ Closing fragment |
| 09-23 04:04 | 160m | - / - | SP8AOV | +1 / - | 3 | Partial capture |
| 09-23 04:02 | 160m | -19 / -15 | DL3IAE | +16 / -12 | 4 | ✓ Full exchange observed |
| 09-23 03:55 | 160m | - / -20 | DL1KDA | -9 / - | 5 | Partial capture |
| 09-23 03:54 | 160m | - / -6 | OH6RX | -9 / - | 2 | ✓ Closing fragment |
| 09-23 01:01 | 80m | -14 / - | RI1FJZ | - / - | 6 | Partial capture |
| 09-23 00:30 | 80m | -17 / -20 | RI1FJZ | -23 / -19 | 11 | Partial capture |
| 09-23 00:20 | 80m | -18 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-23 00:13 | 80m | -17 / -22 | RI1FJZ | -24 / - | 11 | Partial capture |
| 09-17 02:53 | 40m | -16 / - | II7IABB | - / - | 3 | Partial capture |
| 09-16 02:58 | 40m | -13 / -3 | 9K2WA | -14 / -10 | 6 | ✓ Full exchange observed |
| 09-15 05:02 | 40m | - / - | RC1C | -18 / - | 6 | ✓ Closing fragment |
| 09-15 04:11 | 40m | -16 / - | RV3WL | - / - | 3 | Partial capture |
| 09-15 04:09 | 40m | -14 / - | RA6OY | - / - | 3 | Partial capture |
| 09-15 04:06 | 40m | -12 / -12 | RU6CH | +2 / -13 | 4 | ✓ Full exchange observed |
| 09-15 04:04 | 40m | -12 / -8 | RJ6ON | -1 / -22 | 5 | ✓ Full exchange observed |
| 09-15 04:01 | 40m | -12 / - | RA6ABC | - / - | 2 | Partial capture |
| 09-15 04:01 | 40m | - / - | RC1C | -16 / - | 14 | ✓ Closing fragment |
| 09-15 03:58 | 40m | -14 / - | R1AI | - / - | 3 | Partial capture |
| 09-15 03:55 | 40m | -14 / -4 | UA3PAB | 0 / -13 | 5 | ✓ Full exchange observed |
| 09-15 03:52 | 40m | -13 / - | RA3AVR | - / - | 3 | Partial capture |
| 09-15 03:50 | 40m | -12 / -15 | RC1C | -11 / -15 | 13 | ✓ Full exchange observed |
| 09-15 03:41 | 40m | -10 / -25 | RC1C | -18 / - | 10 | Partial capture |
| 09-15 03:38 | 40m | - / - | EA7AH | -5 / - | 4 | Partial capture |
| 09-15 03:38 | 40m | -10 / -13 | R3MW | -9 / -19 | 5 | ✓ Full exchange observed |
| 09-15 03:36 | 40m | -10 / -5 | RK6A | -2 / -9 | 6 | ✓ Full exchange observed |
| 09-15 03:33 | 40m | -14 / -12 | R3BDS | -7 / -22 | 7 | ✓ Full exchange observed |
| 09-15 03:31 | 40m | -12 / -16 | RX3DCZ | -3 / -20 | 5 | ✓ Full exchange observed |
| 09-15 03:28 | 40m | -16 / - | R2EC | - / - | 3 | Partial capture |
| 09-15 03:27 | 40m | - / - | UI6O | -4 / - | 2 | Partial capture |
| 09-15 03:24 | 40m | -16 / - | R2EC | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 002830 +1 2922 NA3M EI3CTB IO63 (x4) 003030 -9 672 NA3M IZ8EYN -13 003030 +16 2547 NA3M F5NBU JN28 003100 -10 671 NA3M IZ8EYN -13 003100 +17 2547 NA3M F5NBU R-06 003130 -12 671 NA3M IZ8EYN -13 003130 +18 2547 NA3M F5NBU 73 003230 -18 671 NA3M IZ8EYN -13 220145 -16 2117 NA3M R4ZZ -10 (x4)
UTC dB Audio Message 031300 +12 2052 NA3M US7KC KO21 031300 -4 1429 NA3M SM5DIC JO89 032700 -9 809 NA3M R5DT -24 (x3) 032830 +9 2054 NA3M US7KC KO21 (x3) 030300 -5 2628 NA3M MI7XHT IO64 000500 -24 1625 NA3M C5R -11 (x4) 034300 +2 1002 NA3M TK1CX -12 (x2)
UTC dB Audio Message 035730 -7 2047 NA3M DL1KDA -20 040230 +14 548 NA3M DL3IAE -15 040245 -17 2047 DL3IAE NA3M R-12 040300 +19 548 NA3M DL3IAE RR73 040315 -21 2048 DL3IAE NA3M 73 040400 +0 1208 NA3M SP8AOV KO11 040400 +6 1726 NA3M F4BKV -05 040430 +3 1208 NA3M SP8AOV KO11 040430 +7 1726 NA3M F4BKV RR73 040430 -4 1657 NA3M DM9LSB JN48 040500 -1 1209 NA3M SP8AOV KO11 040500 -9 1657 NA3M DM9LSB JN48 (x4)
UTC dB Audio Message 205415 +5 2289 NA3M G4DBW JO01 (x2) 205515 -12 2095 NA3M EB3CJR R-16 205545 -5 2480 NA3M R2FAQ -16 205715 +13 2289 NA3M G4DBW -10 (x2) 210145 +8 2413 NA3M G0LPI IO91 (x2) 211445 -15 2095 F1TRF NA3M FM19 215815 -13 2094 9K2MP NA3M FM19 (x6)
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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