JF8QNF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: QN02

Receiver-side FT8 activity involving JF8QNF, decoded by SO8OO in southeastern Poland. 374 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 24 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-10-06.

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 374 FT8 messages attributed to JF8QNF as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 160 m (34%) and 40 m (29%). 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 -14 dB.

Overview

374
Messages attributed
24
UTC dates decoded
66
Active 15-min windows
-14 dB
Estimated median S/N

Bands

160m · 129 80m · 136 40m · 109
First attributed message: 2026-08-02
Last attributed message: 2026-10-06 20:30 UTC

Observed FT8 message patterns

Attributed sample
374 messages
Active dates
24 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-23 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 168, moderate (-15 to -9 dB) 84, strong (≥ -8 dB) 122.

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 JF8QNF 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 JF8QNF

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
QN02 · 125 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,163 km (approx.)
Last such locator decoded
2026-10-06 20:30 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 UTCBandJF8QNF S/NCounterpartCounterpart S/NMsgsCapture
10-09 18:22 160m - / -23 LZ2IP +16 / - 2 ✓ Closing fragment
10-09 17:21 160m - / -20 LZ2IP +21 / - 3 Partial capture
10-09 17:10 160m - / -20 LZ2IP +22 / - 4 Partial capture
10-06 20:36 160m - / - RX6DA -16 / - 10 Partial capture
10-06 20:28 160m -20 / - OM3TWM - / - 3 Partial capture
10-06 19:21 160m - / -11 SV8JE +2 / - 4 ✓ Closing fragment
10-02 19:54 160m - / - R3PMV -10 / - 2 Partial capture
10-02 19:53 160m - / - HA3PV -5 / - 3 Partial capture
10-02 19:51 160m - / -23 RW2Z -21 / - 2 Partial capture
10-02 19:47 160m -14 / -24 OK2BUZ +15 / -13 8 ✓ Full exchange observed
10-02 19:44 160m -20 / - M0PNN - / -20 3 Partial capture
10-02 19:38 160m - / - RD7O -19 / - 2 Partial capture
10-02 19:30 160m - / -19 SV1FKZ -8 / - 5 ✓ Closing fragment
10-02 19:29 160m - / -20 SP8VJV +6 / - 3 ✓ Closing fragment
10-02 19:27 160m -24 / -11 SV8CKM +1 / -15 6 ✓ Full exchange observed
10-02 19:25 160m - / -19 9A2RD +7 / - 7 Partial capture
10-02 19:21 160m -24 / -22 DJ2XY -13 / - 7 ✓ Closing observed
10-02 19:19 160m - / -19 RA1AGX -2 / - 2 Partial capture
10-02 19:19 160m -22 / - 9A60CBM - / -13 3 Partial capture
10-02 19:15 160m -20 / - 9A60CBM - / -15 2 Partial capture
10-02 19:12 160m - / -14 OK2BPU 0 / - 2 ✓ Closing fragment
10-02 19:08 160m -23 / -16 F5OHS +12 / -14 4 ✓ Full exchange observed
10-02 19:06 160m - / -20 IZ0LKV -1 / - 3 Partial capture
10-02 18:58 160m -22 / -18 YL2EA +5 / -20 6 ✓ Full exchange observed
10-02 18:57 160m -24 / - OM2WQ +10 / -18 3 Partial capture
10-02 18:56 160m - / - RD7O -24 / - 2 Partial capture
10-02 18:54 160m - / - DC5PPM +7 / - 6 Partial capture
10-02 18:52 160m - / - R3PMV -15 / - 3 Partial capture
10-02 18:50 160m -23 / -17 IZ0LKV -8 / - 8 ✓ Closing observed
10-02 18:49 160m -17 / -18 DL6NDW +1 / -19 12 ✓ Full exchange observed
10-02 18:49 160m -24 / - OM2WQ +12 / -21 5 Partial capture
10-02 18:47 160m -21 / -8 PA0O -1 / - 4 ✓ Closing observed
10-02 18:40 160m -14 / -16 9A5AGY +1 / -19 15 Partial capture
10-02 18:39 160m - / -20 IK6GPZ +4 / - 4 ✓ Closing fragment
10-02 18:36 160m -14 / -16 IT9GUL +6 / - 5 ✓ Closing observed
10-02 18:36 160m - / -16 F5BZB +9 / - 2 ✓ Closing fragment
10-02 18:36 160m - / - IK4ADE +17 / - 3 ✓ Closing fragment
10-02 18:03 160m - / -25 SQ5HG +17 / - 3 ✓ Closing fragment
10-02 17:58 160m - / -4 SQ5EBM +24 / - 4 ✓ Closing fragment
10-02 17:58 160m -14 / -2 DJ3GZ +18 / -16 5 ✓ Full exchange observed
10-02 17:56 160m -11 / -20 SP1MGM +2 / -26 5 ✓ Full exchange observed
10-02 17:55 160m -15 / -22 DL3IAE +18 / -17 2 Partial capture
10-02 17:45 160m - / -18 LZ1ST +6 / - 4 Partial capture
10-02 17:45 160m -16 / -19 DL6MRS -5 / -21 6 ✓ Full exchange observed
10-02 17:44 160m -19 / -18 YO4FPF -14 / - 4 ✓ Closing observed
10-02 17:44 160m -22 / - OH6JKW -18 / - 2 ✓ Closing observed
10-02 17:41 160m - / - R7KCK -20 / - 2 Partial capture
10-02 17:41 160m - / -19 IW4AOT +2 / - 2 ✓ Closing fragment
10-02 17:39 160m - / -19 OZ2LIN -14 / - 3 ✓ Closing fragment
10-02 17:36 160m - / +3 OH5LF +10 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m 
UTC    dB Audio  Message
203845  -9 1585  JF8QNF RX6DA KN85 (x6)
171000 +29  850  JF8QNF LZ2IP -20 (x9)
40m 
UTC    dB Audio  Message
205430  -9 2792  ZC4OL JF8QNF QN02 (x3)
205745  +0  301  JF8QNF M9DNC -12 (x12)
80m 
UTC    dB Audio  Message
200430  +3  947  JF8QNF S57MPU JN76
200500 +16  515  JF8QNF UW1HM R+03
200500  +5 2509  JF8QNF SQ9DJQ -12
200500  +0  947  JF8QNF S57MPU JN76
200500  +1  253  JF8QNF DO1KF JO60
200530 +14  515  JF8QNF UW1HM 73
200530  +4 2509  JF8QNF SQ9DJQ -12
200530  -2  947  JF8QNF S57MPU JN76
200600 +10 2509  JF8QNF SQ9DJQ -12 (x2)
193800 -12 2233  JF8QNF EI4KX IO63
201330  -2 2510  JF8QNF R3PLA KO84 (x4)
10m 
UTC    dB Audio  Message
103500 -13 1145  JF8QNF F5LHI JN33
105345 -11 2056  JF8QNF F4FSY -01 (x3)
110500  -2 2492  JF8QNF DN9OPA JN38 (x11)

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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