ON7BBR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving ON7BBR, decoded by SO8OO in southeastern Poland. 59 FT8 messages attributed to this token as transmitter, on 60m, 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-26 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 59 FT8 messages attributed to ON7BBR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (83%), followed by 10 m (14%) and 40 m (3%). 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 -16 dB.

Overview

59
Messages attributed
4
UTC dates decoded
7
Active 15-min windows
-16 dB
Estimated median S/N

Bands

60m · 49 40m · 2 10m · 8
First attributed message: 2026-06-26
Last attributed message: 2026-09-12 18:21 UTC

Observed FT8 message patterns

Attributed sample
59 messages
Active dates
4 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-19 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 8.

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 ON7BBR 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 ON7BBR

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
JO21 · 18 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-09-08 19:01 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 UTCBandON7BBR S/NCounterpartCounterpart S/NMsgsCapture
09-12 18:20 60m -22 / -11 YO4NT +3 / +4 4 ✓ Full exchange observed
09-12 18:17 60m -17 / -12 LY8O -4 / - 3 ✓ Closing observed
09-08 19:07 60m - / -10 EW2RA -2 / - 2 ✓ Closing fragment
09-08 19:01 60m -16 / -10 OM5JG +2 / +5 5 ✓ Full exchange observed
09-08 18:57 60m -12 / -7 EB3JT -19 / -1 3 ✓ Full exchange observed
09-08 18:56 60m -15 / -11 ER3UA +1 / -13 4 ✓ Full exchange observed
09-08 18:52 60m -16 / -13 DG1ASE -14 / -4 6 Partial capture
09-08 18:52 60m -16 / -1 ON8DM -11 / +5 5 ✓ Full exchange observed
09-08 18:50 60m - / -7 IK0BAL -14 / - 4 ✓ Closing fragment
09-08 18:49 60m -14 / -10 SP9UPH +8 / +1 5 ✓ Full exchange observed
09-08 18:47 60m -16 / - LA1HW -21 / +7 4 ✓ Closing observed
09-08 18:45 60m -19 / - 9A4ZM - / +7 3 Partial capture
09-08 18:43 60m -17 / 0 DF3IS -3 / - 4 ✓ Closing observed
09-08 18:40 60m - / - OH3GBW -6 / - 3 Partial capture
09-08 18:39 60m -16 / +4 SP6SOZ -10 / -1 3 Partial capture
09-08 18:36 60m -14 / - OZ5VO - / -7 2 ✓ Closing fragment
09-08 18:35 60m -16 / - DK7ZT -19 / +5 5 Partial capture
09-08 18:35 60m - / - SP9UPH +6 / - 2 Partial capture
09-08 18:34 60m -16 / - 9A4ZM -4 / +2 4 Partial capture
09-08 18:34 60m -18 / -4 IK4CBO -13 / +7 5 ✓ Full exchange observed
09-08 18:32 60m -14 / +1 DD6ZV -9 / +2 5 ✓ Full exchange observed
09-08 18:32 60m - / - G0AZH -12 / - 3 Partial capture
09-08 18:32 60m - / - OH3GBW -6 / - 4 Partial capture
09-08 18:29 60m - / - DK7ZT -16 / - 2 Partial capture
09-08 18:29 60m -16 / -10 HA7TM +8 / +7 8 ✓ Full exchange observed
09-07 16:17 40m -5 / - M7KBB - / -6 2 ✓ Closing fragment
09-07 16:06 40m - / -11 2I0WAI -9 / - 2 ✓ Closing fragment
07-07 09:13 10m - / -13 IT9ACJ -16 / - 3 Partial capture
06-26 17:12 10m -8 / - S56GD - / - 3 Partial capture
06-26 17:11 10m -6 / -13 OZ9WRH -7 / 0 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
185945 -12 2433  DK7ZT ON7BBR R+07
190100 -16 1200  OM5JG ON7BBR JO21
190115  +3 1201  ON7BBR OM5JG -10
190130 -14 1201  OM5JG ON7BBR R+05
190145  +0 1201  ON7BBR OM5JG RR73
190200 -17 1201  OM5JG ON7BBR 73
190715  -3 1630  ON7BBR EW2RA -10 (x2)
181730  -4 1244  ON7BBR LY8O -12 (x2)
181815 -17 1243  LY8O ON7BBR 73
182030  +2 1819  ON7BBR YO4NT -11 (x2)
182115 -22 1818  YO4NT ON7BBR R+04
182130  +4 1819  ON7BBR YO4NT RR73
40m 
UTC    dB Audio  Message
160615 -10 2876  ON7BBR 2I0WAI -11 (x2)
161700  -6  978  M7KBB ON7BBR R-06 (x2)
10m 
UTC    dB Audio  Message
170945  -2 2640  OH3EYR ON7BBR 73
171045  -1 2640  MI0JZZ ON7BBR JO21
171115  -6 2325  OZ9WRH ON7BBR JO21
171130  -5 2325  ON7BBR OZ9WRH -13
171145  -9 2325  OZ9WRH ON7BBR R+00
171200  -9 2325  ON7BBR OZ9WRH RR73
171215  -3 2325  OZ9WRH ON7BBR 73
171245  -8 2137  S56GD ON7BBR JO21 (x3)
091330 -18 1397  ON7BBR IT9ACJ -13 (x3)
091615  -7  821  ON7BBR SV2CLJ -01

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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