N9ZJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving N9ZJ, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-06.
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 55 FT8 messages attributed to N9ZJ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (91%), followed by 40 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (69%); the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-09-06 00:55 UTC
Observed FT8 message patterns
- Attributed sample
- 55 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -24 to -13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 0.
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 N9ZJ 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 N9ZJ
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
- FN64 · 30 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,327 km (approx.)
- Last such locator decoded
- 2026-09-06 00:55 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 | N9ZJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-16 01:26 | 160m | - / -18 | DL1RWN | +8 / - | 2 | ✓ Closing fragment |
| 08-13 00:42 | 80m | - / -1 | N1SK | -12 / - | 2 | ✓ Closing fragment |
| 08-13 00:37 | 80m | -17 / -6 | K4MWB | -4 / - | 3 | ✓ Closing observed |
| 08-13 00:35 | 80m | -22 / - | W8WEJ | - / - | 2 | ✓ Closing fragment |
| 08-13 00:32 | 80m | -21 / -2 | KB2M | -17 / +5 | 6 | ✓ Full exchange observed |
| 08-10 00:06 | 40m | - / -16 | UR1CCT | +12 / - | 3 | ✓ Closing fragment |
| 08-10 00:02 | 40m | - / -17 | R2EA | -10 / - | 2 | Partial capture |
| 08-07 00:08 | 40m | - / - | G5TV | -22 / - | 4 | ✓ Closing fragment |
| 08-02 00:18 | 80m | - / -15 | HB9EFK | +14 / - | 2 | ✓ Closing fragment |
| 07-31 02:11 | 80m | -24 / - | KM4VJW | - / -12 | 3 | ✓ Closing fragment |
| 07-31 02:10 | 80m | -24 / - | W7NX | -12 / - | 2 | ✓ Closing observed |
| 07-31 02:07 | 80m | -24 / -10 | N9JR | -22 / +3 | 4 | ✓ Full exchange observed |
| 07-31 02:06 | 80m | - / -18 | MM0HVU | -18 / - | 2 | Partial capture |
| 07-31 01:58 | 80m | -13 / - | AB4BC | - / -9 | 3 | ✓ Closing fragment |
| 07-31 01:56 | 80m | -13 / -15 | SP6JIU | +22 / -7 | 5 | ✓ Full exchange observed |
| 07-31 01:53 | 80m | -14 / - | TI2CC | - / - | 3 | Partial capture |
| 07-31 01:50 | 80m | -12 / - | XE2N | - / - | 2 | Partial capture |
| 07-31 01:49 | 80m | -15 / - | KD2TOW | - / -2 | 3 | ✓ Closing fragment |
| 07-31 01:46 | 80m | -15 / - | WA4CHJ | -14 / - | 2 | ✓ Closing observed |
| 07-31 01:43 | 80m | -17 / -5 | WO2T | -14 / +6 | 4 | Partial capture |
| 07-31 01:41 | 80m | -16 / - | N4QD | - / -9 | 3 | ✓ Closing fragment |
| 07-31 01:39 | 80m | -20 / - | VA2EU | - / +7 | 2 | ✓ Closing fragment |
| 07-31 01:38 | 80m | -18 / - | KM4JB | - / +10 | 3 | ✓ Closing fragment |
| 07-31 01:32 | 80m | -21 / - | WA2SI | - / - | 2 | Partial capture |
| 07-09 01:02 | 40m | - / - | PA3KUS | -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 010300 -11 658 N9ZJ PA3KUS JO21 (x2) 010445 -16 1439 N9ZJ W1TXT +08 000830 -23 1602 N9ZJ G5TV IO93 (x4) 001245 -6 770 N9ZJ GB64MOD -06 001545 -9 1017 N9ZJ PI4DX RR73 000200 -9 665 N9ZJ R2EA -17 (x2) 000615 +10 465 N9ZJ UR1CCT KN69 (x3) 005515 -22 1404 N3BBJ N9ZJ FN64
UTC dB Audio Message 003415 -17 1277 N9ZJ KB2M -02 003430 -21 1517 KB2M N9ZJ R+05 003445 -17 1276 N9ZJ KB2M RR73 003500 -20 1517 KB2M N9ZJ 73 003530 -22 1517 W8WEJ N9ZJ FN64 (x2) 003700 -17 1518 K4MWB N9ZJ FN64 003715 -3 1182 N9ZJ K4MWB -06 (x2) 004215 -12 882 N9ZJ N1SK -01 (x2) 011130 -11 1047 N9ZJ F5PBG IN78 011600 -23 1167 N9ZJ D2UY RR73 235615 -21 1568 PY5/PY2TIM N9ZJ FN64 235700 -21 1128 PT2ND N9ZJ FN64
UTC dB Audio Message 012645 +7 2308 N9ZJ DL1RWN -18 (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.
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