JA1NVF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA1NVF, decoded by SO8OO in southeastern Poland. 181 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-02.
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 181 FT8 messages attributed to JA1NVF as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 40 m (8%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-09-02 20:32 UTC
Observed FT8 message patterns
- Attributed sample
- 181 messages
- Active dates
- 18 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -14 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 74.
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 JA1NVF 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 JA1NVF
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
- PM95 · 149 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,693 km (approx.)
- Last such locator decoded
- 2026-09-01 20:51 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 | JA1NVF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-02 21:02 | 40m | - / - | DL1SUZ | +9 / - | 2 | Partial capture |
| 09-02 21:02 | 40m | - / -9 | RW3ZC | +5 / - | 3 | Partial capture |
| 09-02 20:35 | 40m | - / - | IS0AAS | -6 / - | 2 | Partial capture |
| 09-02 20:32 | 40m | - / -7 | TC2EYL | -11 / - | 4 | Partial capture |
| 09-02 20:28 | 40m | -7 / -9 | DL3MIB | +11 / -4 | 10 | ✓ Full exchange observed |
| 09-02 20:27 | 40m | - / -7 | DK7ZT | -4 / - | 2 | Partial capture |
| 09-02 20:27 | 40m | - / - | LZ4VR | -16 / - | 3 | Partial capture |
| 09-02 20:27 | 40m | - / - | PH2M | 0 / - | 2 | Partial capture |
| 09-01 20:53 | 40m | - / - | R3SN | -7 / - | 2 | Partial capture |
| 09-01 20:53 | 40m | -13 / - | BD7OH | - / -13 | 2 | ✓ Closing fragment |
| 09-01 20:53 | 40m | - / - | F5PBG | +4 / - | 4 | Partial capture |
| 09-01 20:51 | 40m | -11 / - | LU8VLE | - / -12 | 3 | ✓ Closing fragment |
| 09-01 20:46 | 40m | - / - | F8MRQ | -4 / - | 2 | Partial capture |
| 09-01 20:45 | 40m | -11 / - | YO9BGU | - / -5 | 3 | ✓ Closing fragment |
| 09-01 20:44 | 40m | - / - | DJ0MAB | +4 / - | 2 | Partial capture |
| 09-01 20:44 | 40m | - / -7 | DK7ZT | 0 / - | 3 | Partial capture |
| 09-01 20:44 | 40m | - / - | F5PBG | +4 / - | 4 | Partial capture |
| 09-01 20:42 | 40m | -12 / -16 | OK1AWC | +5 / -9 | 7 | ✓ Full exchange observed |
| 08-30 21:57 | 20m | -10 / -5 | M0GQC | -16 / - | 3 | Partial capture |
| 08-29 21:37 | 20m | -15 / - | F5PBG | - / - | 2 | Partial capture |
| 08-29 21:19 | 20m | -10 / - | IU6WSM | - / - | 3 | Partial capture |
| 08-29 21:10 | 20m | -14 / - | HB9GWX | - / - | 2 | Partial capture |
| 08-27 11:28 | 10m | - / -16 | CT1BOH | -9 / - | 3 | ✓ Closing fragment |
| 08-27 11:21 | 10m | - / -4 | CT7AXN | -8 / - | 2 | ✓ Closing fragment |
| 08-23 21:28 | 20m | -7 / -5 | A61OK | -9 / - | 5 | Partial capture |
| 08-23 21:17 | 20m | -8 / - | SP2GJI | - / -19 | 4 | ✓ Closing fragment |
| 08-23 21:12 | 20m | -7 / - | DL8HXP | - / - | 3 | Partial capture |
| 08-23 21:02 | 20m | -6 / - | S56UVB | - / - | 2 | Partial capture |
| 08-23 20:56 | 20m | -4 / - | UT2PC | - / - | 3 | Partial capture |
| 08-23 20:52 | 20m | - / -13 | F4HHL | -12 / - | 5 | Partial capture |
| 08-20 21:23 | 20m | - / - | EA5OM | +4 / - | 3 | Partial capture |
| 08-20 21:13 | 20m | - / -14 | EB1DJ | -6 / - | 4 | ✓ Closing fragment |
| 08-20 11:17 | 20m | - / +8 | MI0AIH | -10 / - | 3 | Partial capture |
| 08-19 21:22 | 20m | - / - | EA5BLP | -2 / - | 3 | Partial capture |
| 08-18 11:55 | 20m | - / -15 | SV5BYP | -24 / - | 2 | ✓ Closing fragment |
| 08-16 20:58 | 20m | - / - | F4GRW | -13 / - | 2 | Partial capture |
| 08-13 21:10 | 20m | - / +3 | TN8GD | -7 / - | 2 | ✓ Closing fragment |
| 08-12 21:51 | 20m | - / - | ON7NQ | 0 / - | 7 | Partial capture |
| 08-12 21:51 | 20m | - / +5 | OE2EZM | +2 / - | 2 | Partial capture |
| 08-12 21:46 | 20m | - / - | DB5BC | -14 / - | 2 | Partial capture |
| 08-12 21:43 | 20m | - / -14 | PA2EW | -7 / - | 2 | ✓ Closing fragment |
| 08-12 21:32 | 20m | - / -14 | RQ6Z | -16 / - | 2 | ✓ Closing fragment |
| 08-12 21:27 | 20m | - / -11 | ON7NQ | +4 / - | 7 | Partial capture |
| 08-12 21:27 | 20m | - / - | RA6OF | -14 / - | 2 | Partial capture |
| 08-12 21:15 | 20m | - / - | OM1AMT | -8 / - | 4 | Partial capture |
| 08-12 10:39 | 20m | - / - | DH5AZ | -14 / - | 2 | Partial capture |
| 08-12 10:38 | 20m | - / -19 | 9A/SQ9BKO | -2 / - | 2 | Partial capture |
| 08-11 21:34 | 20m | - / - | EA5BLP | -7 / - | 4 | Partial capture |
| 08-11 21:34 | 20m | - / -15 | SV5BYP | -16 / - | 2 | Partial capture |
| 08-11 21:17 | 20m | -12 / - | TT1GD | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203145 +12 1070 JA1NVF DL3MIB R-09 203200 -11 1301 JA1NVF TC2EYL -07 203200 -6 816 DL3MIB JA1NVF RR73 203215 +14 1070 JA1NVF DL3MIB 73 203230 -9 1301 JA1NVF TC2EYL -07 (x3) 203500 -4 1430 JA1NVF IS0AAS JM49 (x2) 210200 -8 2010 JA1NVF YT1DDL KN04 210200 +2 2704 JA1NVF RW3ZC -09 210200 +13 639 JA1NVF DL1SUZ JO53 210230 +5 2704 JA1NVF RW3ZC -09 210230 +5 1134 JA1NVF DL1SUZ JO53 210300 +7 2704 JA1NVF RW3ZC -09
UTC dB Audio Message 212900 -7 855 A61OK JA1NVF PM95 212945 -7 1121 JA1NVF A61OK -05 213000 -7 854 A61OK JA1NVF PM95 214245 -9 1124 EA5AE JA1NVF PM95 (x2) 211030 -13 854 HB9GWX JA1NVF PM95 (x2) 211900 -9 855 IU6WSM JA1NVF PM95 (x3) 213730 -15 855 F5PBG JA1NVF PM95 (x2) 215745 -10 852 M0GQC JA1NVF PM95 215830 -15 2078 JA1NVF M0GQC -05 (x2)
UTC dB Audio Message 112115 -8 1595 JA1NVF CT7AXN -04 (x2) 112545 -18 867 JA1NVF F5MXH JN07 112845 -7 1615 JA1NVF CT1BOH IM58 (x3) 113615 -13 239 JA1NVF F4LZZ JN09
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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