JA2VQF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM84

Receiver-side FT8 activity involving JA2VQF, decoded by SO8OO in southeastern Poland. 230 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

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 230 FT8 messages attributed to JA2VQF as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 80 m (25%) and 40 m (19%). 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 strong S/N range (63%); the estimated median was -6 dB.

Overview

230
Messages attributed
27
UTC dates decoded
49
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 57 40m · 44 20m · 129
First attributed message: 2026-06-06
Last attributed message: 2026-09-12 18:40 UTC

Observed FT8 message patterns

Attributed sample
230 messages
Active dates
27 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-15 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 146.

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 JA2VQF 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 JA2VQF

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
PM84 · 130 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,675 km (approx.)
Last such locator decoded
2026-09-12 18:40 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 UTCBandJA2VQF S/NCounterpartCounterpart S/NMsgsCapture
09-19 19:27 160m - / -9 UW5ZM +25 / - 2 ✓ Closing fragment
09-19 19:10 160m - / -20 EX7CQ -13 / - 4 ✓ Closing fragment
09-13 19:15 40m - / - LB7ZG +14 / - 3 Partial capture
09-13 19:15 40m - / - SM7OYP +12 / - 3 Partial capture
09-12 18:45 40m - / - DJ0MAB +4 / - 2 Partial capture
09-12 18:45 40m - / - S54J +7 / - 3 Partial capture
09-12 18:42 40m - / - LB7ZG +6 / - 4 Partial capture
09-12 18:42 40m - / +2 SM0IJS -10 / - 2 Partial capture
09-12 18:41 40m - / - EA3EDU -1 / - 11 Partial capture
09-12 18:41 40m - / - PA2AZ +2 / - 4 Partial capture
09-12 18:34 40m - / - IU3VGK -1 / - 5 Partial capture
09-12 18:34 40m - / - OH6FSG -7 / - 3 Partial capture
09-12 18:34 40m - / - OM1TD -1 / - 3 Partial capture
09-12 18:34 40m - / - DL1UDO -5 / - 4 Partial capture
09-12 18:34 40m - / - R5FN 0 / - 2 Partial capture
09-12 18:32 40m -10 / - UA0LQE - / - 2 Partial capture
09-12 18:29 40m - / - DJ0MAB +7 / - 2 Partial capture
09-09 20:07 80m - / - UR5VLC +4 / - 2 Partial capture
09-08 20:58 40m -7 / - BG7BVI - / -7 2 ✓ Closing fragment
09-07 20:40 80m -18 / - UX5UO - / - 2 Partial capture
09-07 20:38 80m -14 / -17 SP2HNF +9 / -19 3 ✓ Full exchange observed
09-07 20:35 80m -12 / - EW8CW - / - 2 Partial capture
09-07 20:33 80m - / - OH1ZE +4 / - 28 Partial capture
09-07 20:28 80m - / - OH1ZE +2 / - 5 Partial capture
09-07 20:24 80m - / - OH1ZE +3 / - 2 Partial capture
09-07 20:22 80m - / - LY1DY +20 / - 4 Partial capture
09-07 20:19 80m -15 / -9 UT7UA +13 / -18 7 ✓ Full exchange observed
09-07 20:18 80m - / -8 RY3D +15 / - 2 ✓ Closing fragment
09-04 19:25 80m - / -15 UR4LRG +4 / - 2 Partial capture
09-03 18:43 160m - / - S57MPU +16 / - 3 Partial capture
08-26 20:16 40m - / - DF7EE -6 / - 5 Partial capture
08-26 20:16 40m - / - DL9PN -2 / - 2 Partial capture
08-26 20:15 40m - / - RN3AOE +5 / - 4 Partial capture
08-26 20:14 40m - / - PD0PHA -13 / - 4 Partial capture
08-26 20:14 40m - / - PA3HGU -4 / - 6 Partial capture
08-26 20:14 40m -1 / -3 R7ZY +2 / -12 5 ✓ Full exchange observed
08-26 20:12 40m -2 / - RI1FJL - / - 3 Partial capture
08-22 19:39 80m - / -19 SP2HNF +12 / - 9 Partial capture
08-21 18:52 40m -1 / - EN100NP - / - 4 Partial capture
08-21 18:29 40m - / -9 RK3AW -10 / - 2 Partial capture
08-21 18:29 40m - / -6 IK5ZPV +3 / - 3 Partial capture
08-21 18:28 40m - / - LB7ZG +2 / - 3 Partial capture
08-21 18:26 40m -3 / - IK4IDY - / -21 4 ✓ Closing fragment
08-21 18:25 40m - / - TA6B -7 / - 18 Partial capture
08-21 18:23 40m - / - DL1HDL +1 / - 3 Partial capture
08-21 18:22 40m -2 / +4 R3EDI -4 / -20 5 ✓ Full exchange observed
08-21 18:19 40m - / -7 IK5ZPV -2 / - 2 Partial capture
08-21 18:18 40m -4 / - OZ9FF - / - 4 Partial capture
08-21 18:15 40m - / - IK5ZPV -3 / - 3 Partial capture
08-21 18:15 40m - / - IU5VLR -8 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
192315 -11 1496  JA2VQF RK3QA LO02 (x2)
184300 +14 2446  JA2VQF S57MPU JN76 (x3)
191030 -18 1690  JA2VQF EX7CQ R-20 (x4)
192700 +24  340  JA2VQF UW5ZM -09 (x2)
40m 
UTC    dB Audio  Message
184500  +7  485  JA2VQF S54J JN76
184500  +1 2916  JA2VQF EA3EDU JN01
184500  +4 2992  JA2VQF DJ0MAB JN49
184530  +8  485  JA2VQF S54J JN76
184530  +1 2916  JA2VQF EA3EDU JN01
184530  +5 2991  JA2VQF DJ0MAB JN49
184600  +5  485  JA2VQF S54J JN76
184600  -1 2916  JA2VQF EA3EDU JN01 (x2)
191515 +13 2879  JA2VQF SM7OYP JO66 (x2)
191545 +14 2937  JA2VQF LB7ZG JP50
191615 +12 2879  JA2VQF SM7OYP JO66
191615 +14 2937  JA2VQF LB7ZG JP50 (x2)
80m 
UTC    dB Audio  Message
204145  +6 2752  JA2VQF OH1ZE KP10 (x5)
204400 -19 2758  UX5UO JA2VQF PM84
204415 +11 2752  JA2VQF OH1ZE KP10 (x7)
200730  +5 2660  JA2VQF UR5VLC KN68 (x2)
20m 
UTC    dB Audio  Message
213715  +6  469  JA2VQF DC6KW JO30
113015  -4 2862  JA2VQF EA3NE JN11
113345 -14 2483  JA2VQF IU5HIU JN53
191645  -8 2974  GW8DX JA2VQF PM84
191700  -3 2154  JA2VQF M8KKH JO01
191730 +24 2702  JA2VQF ON4IQ JO20
191730  -3 2154  JA2VQF M8KKH JO01
191800 +27 2702  JA2VQF ON4IQ R-13
191800  -6 2154  JA2VQF M8KKH JO01
191815  -4 2974  ON4IQ JA2VQF RR73
191830 +23 2702  JA2VQF ON4IQ 73
191830 -10 2154  JA2VQF M8KKH JO01
195500 -19 2308  JA2VQF CX6TU +02
211715  -3 1003  JA2VQF EB1DJ -09 (x2)
10m 
UTC    dB Audio  Message
090545 -14 1141  JA2VQF <...> -02 (x2)
090815 -12  922  JA2VQF A41ZZ -07 (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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