ON4BAR — 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: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON4BAR, decoded by SO8OO in southeastern Poland. 111 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-19 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 111 FT8 messages attributed to ON4BAR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (29%) and 10 m (2%). Most decodes (98%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +4 dB.

Overview

111
Messages attributed
4
UTC dates decoded
13
Active 15-min windows
+4 dB
Estimated median S/N

Bands

40m · 32 20m · 77 10m · 2
First attributed message: 2026-08-19
Last attributed message: 2026-09-02 12:34 UTC

Observed FT8 message patterns

Attributed sample
111 messages
Active dates
4 UTC dates
Estimated median S/N
+4 dB
Estimated 10th-90th percentile
-16 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 93.

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 ON4BAR 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 ON4BAR

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
JO10 · 73 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,335 km (approx.)
Last such locator decoded
2026-09-02 12:34 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 UTCBandON4BAR S/NCounterpartCounterpart S/NMsgsCapture
09-01 22:55 40m - / - G1CEC -16 / - 2 Partial capture
09-01 22:55 40m +4 / - 9J2FI - / - 8 Partial capture
09-01 21:25 40m +1 / - SQ3KO - / -12 3 Partial capture
09-01 21:24 40m -1 / - BA4OO - / -17 2 Partial capture
09-01 21:22 40m - / - PD0LBY -8 / - 3 Partial capture
09-01 21:21 40m -4 / -12 DK8HC -6 / - 5 ✓ Closing observed
09-01 21:14 40m +1 / -14 V51WH -13 / -4 12 ✓ Full exchange observed
08-20 19:35 20m +6 / - OZ/KD0NDU - / - 11 Partial capture
08-20 19:26 20m +10 / - BA8BLK - / -16 3 Partial capture
08-20 19:23 20m +9 / - <...> - / -8 3 Partial capture
08-20 19:14 20m +11 / - <...> - / -23 11 Partial capture
08-20 19:11 20m +6 / - OK2VCR - / -1 2 ✓ Closing fragment
08-20 19:02 20m +5 / - <...> - / -15 12 Partial capture
08-20 18:57 20m +6 / - R1CBH/P - / - 9 Partial capture
08-20 18:50 20m +8 / - R1CBH/P - / -7 6 Partial capture
08-19 21:21 40m -18 / - OJ0YL - / - 5 Partial capture
08-19 19:22 20m -21 / - BA3QIQ - / -20 2 ✓ Closing fragment
08-19 19:20 20m -10 / - EP2AES - / -14 2 ✓ Closing fragment
08-19 19:14 20m -20 / - OJ0YL - / - 2 Partial capture
08-19 19:04 20m -10 / - BG7BVI - / -7 2 ✓ Closing fragment
08-19 18:59 20m -9 / - XU7O - / +5 5 ✓ Closing fragment
08-19 18:55 20m -10 / - XU7O - / 0 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
123215 -20 1459  YC9CGR ON4BAR R+24
123445 -21 1459  YG2CGO ON4BAR JO10
40m 
UTC    dB Audio  Message
212415  +1 1981  BA4OO ON4BAR -17 (x2)
212515  +5 1981  SQ3KO ON4BAR -12 (x3)
225530  +3 2162  9J2FI ON4BAR JO10
225545 -17 1823  ON4BAR G1CEC IO83
225600  +1 2162  9J2FI ON4BAR JO10 (x2)
225715 -14 1823  ON4BAR G1CEC IO83
225730  +5 2162  9J2FI ON4BAR JO10 (x5)
20m 
UTC    dB Audio  Message
192645  +9  832  BA8BLK ON4BAR R-16 (x3)
193530  +0 1300  OZ/KD0NDU ON4BAR JO10 (x11)
194200  +5 1300  YU4FQN ON4BAR RR73

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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