JA3BFL — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM74

Receiver-side FT8 activity involving JA3BFL, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 160m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-09-30.

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 23 FT8 messages attributed to JA3BFL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (57%), followed by 40 m (43%). 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 (74%); the estimated median was -19 dB.

Overview

23
Messages attributed
3
UTC dates decoded
9
Active 15-min windows
-19 dB
Estimated median S/N

Bands

160m · 13 40m · 10
First attributed message: 2026-08-24
Last attributed message: 2026-09-30 19:54 UTC

Observed FT8 message patterns

Attributed sample
23 messages
Active dates
3 UTC dates
Estimated median S/N
-19 dB
Estimated 10th-90th percentile
-24 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 6, 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 JA3BFL in decoded directed-looking exchanges:

Most frequent locator attributed to JA3BFL

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
PM74 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,565 km (approx.)
Last such locator decoded
2026-09-30 19:54 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 UTCBandJA3BFL S/NCounterpartCounterpart S/NMsgsCapture
10-13 19:49 80m - / -15 ES2AJ +9 / - 2 Partial capture
10-07 20:28 80m - / -15 S59A +22 / - 2 ✓ Closing fragment
10-01 18:57 160m - / -16 HA5AO -11 / - 3 ✓ Closing fragment
10-01 14:36 80m - / -9 OH1MLZ 0 / - 7 ✓ Closing fragment
10-01 14:30 80m - / -5 OM5FM +11 / - 13 Partial capture
09-30 20:41 160m - / -20 DF5AH -11 / - 4 Partial capture
09-30 20:40 160m - / - DL1SVI -11 / - 4 Partial capture
09-30 20:39 160m - / -20 OH1NDA +5 / - 3 Partial capture
09-30 20:37 160m - / - DL1SVI -10 / - 2 Partial capture
09-30 20:35 160m - / - OZ2LIN -8 / - 2 Partial capture
09-30 20:34 160m - / +4 DK2DB -8 / - 9 ✓ Closing fragment
09-30 20:33 160m - / - DF5AH -12 / - 6 ✓ Closing fragment
09-30 20:33 160m - / -14 F4GGS -7 / - 3 ✓ Closing fragment
09-30 20:10 160m - / -14 DJ7M +18 / - 4 ✓ Closing fragment
09-30 19:54 160m - / - YL2CA -18 / - 6 Partial capture
09-30 19:54 160m -22 / -10 PA0O -2 / - 3 ✓ Closing observed
09-30 19:50 160m - / - YO5USA -9 / - 4 Partial capture
09-30 19:48 160m - / - YL2CA -15 / - 3 Partial capture
09-30 19:44 160m - / -1 SM0CXS -5 / - 3 ✓ Closing fragment
09-30 19:44 160m - / - SP9VRY +2 / - 6 Partial capture
09-30 19:43 160m - / - SM6CWP -16 / - 6 Partial capture
09-30 19:43 160m - / -19 SP1MGM +13 / - 3 Partial capture
09-30 19:39 160m - / - SP1MGM -2 / - 2 Partial capture
09-30 19:37 160m - / -24 RU3FM -9 / - 13 ✓ Closing fragment
09-30 19:35 160m - / - DL5EBS -23 / - 5 Partial capture
09-30 19:35 160m - / - SP5GW +2 / - 7 Partial capture
09-30 19:33 160m -24 / -18 DF2GH -1 / - 5 ✓ Closing observed
09-30 19:33 160m - / -19 IZ7NLJ -10 / - 9 ✓ Closing fragment
09-30 19:33 160m - / - SM6CWP -22 / - 2 Partial capture
09-30 19:33 160m -24 / -1 SM2LIY 0 / - 5 Partial capture
09-30 19:31 160m - / -20 EW6CB -8 / - 4 ✓ Closing fragment
09-30 19:30 160m - / -6 OH0Z -16 / - 2 ✓ Closing fragment
09-30 19:26 160m - / - DF2GH +6 / - 2 Partial capture
09-30 19:25 160m - / - RU3FM -13 / - 8 Partial capture
09-30 19:25 160m - / - SP3PLD +15 / - 2 Partial capture
09-30 19:23 160m - / -19 SP3BPU +10 / - 5 ✓ Closing fragment
09-30 19:23 160m - / - DG2KW -3 / - 5 Partial capture
09-30 19:20 160m - / - SP9VRY 0 / - 4 Partial capture
09-30 19:15 160m -13 / -16 F5OHS -4 / -11 5 ✓ Full exchange observed
09-30 19:15 160m - / - DL4SZB -9 / - 7 Partial capture
09-30 19:15 160m - / - OM3RP +12 / - 2 Partial capture
09-30 19:15 160m - / -19 R5BS -10 / - 4 Partial capture
09-30 19:14 160m - / - RU3FM -12 / - 3 Partial capture
09-30 19:13 160m - / - DG2KW -1 / - 4 Partial capture
09-30 19:12 160m -15 / -11 ON8DM +1 / -14 4 ✓ Full exchange observed
09-23 20:38 80m - / -15 CN8WK -6 / - 3 ✓ Closing fragment
09-23 20:25 160m - / -13 RI1FJZ -20 / - 4 ✓ Closing fragment
09-23 20:18 160m - / -23 GM4YXI -21 / - 2 ✓ Closing fragment
09-23 20:17 160m - / - SP3BPU +1 / - 2 Partial capture
09-23 19:35 160m - / -13 PI4DX +2 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
143530 +11 1553  JA3BFL OM5FM -05 (x2)
143600  -8 2505  JA3BFL OH1MLZ -09
143630 +11 1553  JA3BFL OM5FM -05
143630  -3 2506  JA3BFL OH1MLZ -14 (x6)
202800 +24 1050  JA3BFL S59A -15 (x2)
203200 +21 2260  JA3BFL HA1TNX -14
194900  +8 1110  JA3BFL ES2AJ -15 (x2)
160m 
UTC    dB Audio  Message
204015  +5 1610  JA3BFL OH1NDA -20
204015  -9 1661  JA3BFL DK2DB RR73
204045  +8 1610  JA3BFL OH1NDA -20
204045 -13 1145  JA3BFL DL1SVI JO60
204045  -7 1661  JA3BFL DK2DB R+04
204115 -15 1145  JA3BFL DL1SVI JO60
204115  -7 2108  JA3BFL DF5AH R-20
204145  -6 1145  JA3BFL DL1SVI JO60
204145 -13 2109  JA3BFL DF5AH R-20
204215 -10 1145  JA3BFL DL1SVI JO60
204215  -6 2109  JA3BFL DF5AH JO41 (x2)
185745  -8  805  JA3BFL HA5AO -16 (x3)
10m 
UTC    dB Audio  Message
105430 -15 1263  JA3BFL CU2AP RR73
40m 
UTC    dB Audio  Message
204515 -16 1062  JA3BFL YT2FA 73
204515  +4 1792  JA3BFL UT3RO KO60
204515 -16 1893  JA3BFL F5JAE JN14
204545  +5 1792  JA3BFL UT3RO KO60
204545 -14 1893  JA3BFL F5JAE JN14
204615  +4 1792  JA3BFL UT3RO KO60
204645  -3  610  JA3BFL CR7BRV IM58
204730 -21 1676  UT3RO JA3BFL -20
204945 -17 1359  JA3BFL RU3DBT KO95 (x7)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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