N4AVJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving N4AVJ, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-23.
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 49 FT8 messages attributed to N4AVJ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 40 m (2%). Most decodes (100%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-08-23 03:01 UTC
Observed FT8 message patterns
- Attributed sample
- 49 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -15 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 27.
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 N4AVJ in decoded directed-looking exchanges:
Most frequent locator attributed to N4AVJ
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
- FM16 · 38 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,551 km (approx.)
- Last such locator decoded
- 2026-08-23 03:01 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 | N4AVJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 21:46 | 40m | - / -15 | F5NBU | 0 / - | 3 | ✓ Closing fragment |
| 09-19 21:38 | 40m | - / -20 | S51CK | -12 / - | 4 | ✓ Closing fragment |
| 09-19 05:27 | 40m | - / -19 | I1RJP | +12 / - | 3 | ✓ Closing fragment |
| 09-19 05:26 | 40m | - / -19 | M8HAG | -2 / - | 2 | ✓ Closing fragment |
| 09-19 04:25 | 40m | - / -11 | F1PBZ | -11 / - | 2 | Partial capture |
| 09-19 04:07 | 40m | - / -13 | F4BYA | +16 / - | 4 | ✓ Closing fragment |
| 09-19 03:21 | 40m | - / -13 | GM6URC | -16 / - | 2 | Partial capture |
| 09-19 03:21 | 40m | - / -15 | HK3W | -14 / - | 5 | ✓ Closing fragment |
| 09-18 04:45 | 40m | - / -24 | PD0WL | -13 / - | 5 | ✓ Closing fragment |
| 09-18 04:43 | 40m | - / - | F4BYA | +7 / - | 3 | Partial capture |
| 09-18 04:43 | 40m | - / -24 | F5MOO | +2 / - | 2 | Partial capture |
| 09-16 22:07 | 40m | - / +3 | K4RUM | +2 / - | 3 | ✓ Closing fragment |
| 09-13 23:26 | 40m | - / -17 | GM6URC | -14 / - | 4 | Partial capture |
| 09-03 05:12 | 40m | - / -16 | IK2ZJR | 0 / - | 5 | ✓ Closing fragment |
| 09-03 05:07 | 40m | - / -6 | HB9CEX | -4 / - | 2 | Partial capture |
| 09-03 04:49 | 40m | - / -18 | IA5KRO | -4 / - | 3 | ✓ Closing fragment |
| 09-03 04:40 | 40m | - / -13 | DJ0MAB | +1 / - | 2 | Partial capture |
| 09-03 04:36 | 40m | - / -17 | F4CVQ | +11 / - | 2 | ✓ Closing fragment |
| 09-01 05:37 | 40m | - / - | F8ARK | +2 / - | 2 | Partial capture |
| 08-27 02:45 | 40m | - / - | OH1EDK | +13 / - | 7 | Partial capture |
| 08-27 02:43 | 40m | - / -20 | OZ1KEF | -12 / - | 2 | Partial capture |
| 08-23 05:41 | 40m | - / - | PC2F | -18 / - | 2 | Partial capture |
| 08-23 05:38 | 40m | - / -21 | G8OO | -5 / - | 4 | ✓ Closing fragment |
| 08-23 05:36 | 40m | - / -16 | EA1B | -18 / - | 2 | ✓ Closing fragment |
| 08-23 03:16 | 40m | - / -25 | EW2ZC | -8 / - | 4 | Partial capture |
| 08-23 03:09 | 40m | - / -16 | EA5HM | -5 / - | 3 | ✓ Closing fragment |
| 08-23 02:57 | 40m | - / -12 | <...> | +4 / - | 2 | Partial capture |
| 08-23 02:53 | 40m | - / - | R2EC | -11 / - | 2 | Partial capture |
| 08-23 02:32 | 40m | - / - | RX3ASQ | -4 / - | 2 | Partial capture |
| 08-13 23:09 | 40m | - / -12 | IU2HUQ | -6 / - | 3 | ✓ Closing fragment |
| 08-11 04:08 | 40m | - / -16 | DC1KN | -14 / - | 2 | ✓ Closing fragment |
| 08-11 03:59 | 40m | - / -16 | YO6LM | +4 / - | 4 | Partial capture |
| 08-11 03:56 | 40m | - / -15 | YO6LM | -5 / - | 2 | Partial capture |
| 08-11 03:27 | 40m | - / -13 | UR3HC | -12 / - | 8 | Partial capture |
| 08-04 05:19 | 40m | - / - | DH1JG | -11 / - | 9 | Partial capture |
| 08-04 05:15 | 40m | - / -15 | OE5CCN | +11 / - | 3 | ✓ Closing fragment |
| 08-01 03:48 | 20m | - / -14 | LZ2KV | -16 / - | 2 | ✓ Closing fragment |
| 08-01 03:41 | 20m | - / -15 | RA6ABC | +8 / - | 3 | ✓ Closing fragment |
| 08-01 00:46 | 20m | - / -21 | EA3GXK | -14 / - | 2 | Partial capture |
| 08-01 00:23 | 40m | - / - | DL7PBS | -16 / - | 3 | Partial capture |
| 07-27 02:49 | 40m | - / -22 | EB1LA | -18 / - | 2 | Partial capture |
| 07-26 03:51 | 20m | - / - | UA6HBJ | +9 / - | 2 | Partial capture |
| 07-24 01:31 | 60m | - / -16 | F5RAV | -1 / - | 2 | ✓ Closing fragment |
| 07-24 00:55 | 40m | - / - | F4BYA | +5 / - | 3 | Partial capture |
| 07-16 04:01 | 40m | - / -15 | <...> | -10 / - | 2 | Partial capture |
| 07-14 04:52 | 20m | - / -7 | SV7BAY | -4 / - | 3 | ✓ Closing fragment |
| 07-12 04:06 | 40m | - / -15 | F1APY | -16 / - | 5 | ✓ Closing fragment |
| 07-12 03:23 | 40m | - / -18 | F4FCE | -24 / - | 2 | Partial capture |
| 07-12 03:03 | 40m | - / -20 | DL1UDO | -20 / - | 2 | ✓ Closing fragment |
| 07-12 02:53 | 40m | - / - | IK4LZH | -6 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042500 -12 1972 N4AVJ F1PBZ -11 (x2) 042730 -17 1235 N4AVJ DJ2DL JO31 052615 +0 2863 N4AVJ M8HAG -19 (x2) 052715 +8 477 N4AVJ I1RJP JN45 (x3) 213845 -12 1180 N4AVJ S51CK JN76 (x4) 214615 -8 1634 N4AVJ F5NBU JN28 (x3)
UTC dB Audio Message 035130 +7 692 N4AVJ UA6HBJ LN04 052445 -15 1063 N4AVJ DL1UDO JO31 015100 -22 1305 N4AVJ R3KCW KO90 031415 -18 1865 N4AVJ XE1GLL RR73 004630 -16 832 N4AVJ EA3GXK IM98 (x2) 033430 -21 1889 N4AVJ RU4SS LO36 034100 +7 1535 N4AVJ RA6ABC KN96 (x3) 034800 -16 1960 N4AVJ LZ2KV -14 (x2) 035615 -23 1491 N4AVJ RU4SS LO36 212200 -17 1892 N4AVJ I2XIP RR73 020045 -12 462 N4AVJ IK4LZH JN54
UTC dB Audio Message 013115 +1 1410 N4AVJ F5RAV -16 (x2)
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