HB9/ON4AEO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland

Receiver-side FT8 activity involving HB9/ON4AEO, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-02 and 2026-09-04.

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 137 FT8 messages attributed to HB9/ON4AEO as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

137
Messages attributed
2
UTC dates decoded
27
Active 15-min windows
-10 dB
Estimated median S/N

Bands

40m · 137
First attributed message: 2026-09-02
Last attributed message: 2026-09-04 20:34 UTC

Observed FT8 message patterns

Attributed sample
137 messages
Active dates
2 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 56.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB9/ON4AEO 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.

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 UTCBandHB9/ON4AEO S/NCounterpartCounterpart S/NMsgsCapture
09-05 10:30 40m - / -17 IZ7KGB -19 / - 3 Partial capture
09-05 06:53 40m - / +7 SP5IYY -4 / - 2 Partial capture
09-04 20:37 40m - / -8 9A4ZM -6 / - 2 Partial capture
09-04 20:32 40m - / -20 DM5CM +1 / - 6 Partial capture
09-04 20:31 40m - / - AO77R -9 / - 2 ✓ Closing fragment
09-04 19:20 40m - / - <...> -5 / - 4 ✓ Closing fragment
09-04 19:17 40m - / -3 PC2F -15 / - 2 Partial capture
09-04 19:13 40m - / -13 LZ2VQ -10 / - 2 Partial capture
09-04 19:10 40m - / - <...> 0 / - 3 ✓ Closing fragment
09-04 19:09 40m -8 / -9 HA7TM 0 / -1 3 Partial capture
09-04 19:05 40m - / - <...> +2 / - 6 ✓ Closing fragment
09-04 18:55 40m - / -10 HA7TM +4 / - 4 Partial capture
09-04 18:42 40m +2 / - <...> - / - 2 Partial capture
09-04 18:41 40m -4 / - EG1PDA - / -12 2 Partial capture
09-04 18:34 40m -11 / - <...> 0 / - 3 ✓ Closing fragment
09-04 18:29 40m - / -8 HA7TM -2 / - 3 Partial capture
09-04 18:26 40m - / -17 IK1MJK -5 / - 2 Partial capture
09-04 15:10 40m - / - RC1C -16 / - 3 Partial capture
09-04 14:06 40m - / - <...> -6 / - 2 ✓ Closing fragment
09-04 13:17 40m - / - <...> -7 / - 2 ✓ Closing fragment
09-04 13:09 40m - / - <...> +6 / - 2 ✓ Closing fragment
09-04 13:06 40m - / -1 SP6HZ -10 / - 2 Partial capture
09-02 20:49 40m -19 / - <...> +5 / - 2 ✓ Closing fragment
09-02 20:40 40m -9 / - <...> -12 / - 5 ✓ Closing fragment
09-02 20:37 40m -4 / - RZ4FWA - / -12 5 Partial capture
09-02 20:34 40m -4 / - <...> -10 / - 2 ✓ Closing fragment
09-02 20:34 40m -8 / 0 F6BHK -12 / -2 2 Partial capture
09-02 20:32 40m - / -4 RN6MA -10 / - 2 Partial capture
09-02 20:27 40m - / - JA0RUG -4 / - 11 Partial capture
09-02 20:27 40m -11 / - <...> -7 / - 5 ✓ Closing fragment
09-02 20:26 40m -5 / -4 PA2KV -4 / +6 3 Partial capture
09-02 20:22 40m -6 / - <...> -3 / - 3 ✓ Closing fragment
09-02 20:21 40m -4 / +1 4O4DB -17 / -10 4 Partial capture
09-02 20:15 40m -5 / 0 PH9OY -7 / 0 2 Partial capture
09-02 20:10 40m -7 / - <...> -7 / - 7 ✓ Closing fragment
09-02 19:49 40m -8 / - JA4FKX - / -5 5 Partial capture
09-02 14:59 40m - / -3 SQ6ELK -2 / - 2 Partial capture
09-02 14:57 40m - / +3 OK2VCR +4 / - 20 Partial capture
09-02 14:48 40m -20 / - F4NJT - / -22 4 Partial capture
09-02 14:46 40m -23 / - <...> -7 / - 3 ✓ Closing fragment
09-02 14:46 40m - / - DG1YHP -16 / - 2 Partial capture
09-02 14:40 40m -17 / -1 OZ5AGJ -20 / -14 3 Partial capture
09-02 14:36 40m - / - SP9MRP 0 / - 2 Partial capture
09-02 14:34 40m -21 / - <...> -1 / - 2 ✓ Closing fragment
09-02 14:23 40m - / - <...> -15 / - 2 Partial capture
09-02 14:10 40m - / - <...> -10 / - 3 ✓ Closing fragment
09-02 13:54 40m - / - IK1QLD -22 / - 2 Partial capture
09-02 13:53 40m - / - OE8PIT -6 / - 4 Partial capture
09-02 13:50 40m -21 / - <...> -8 / - 3 ✓ Closing fragment
09-02 13:44 40m -21 / - <...> - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
203330  +1 1612  HB9/ON4AEO DM5CM JO60
203400  -8 1609  PD0LBY HB9/ON4AEO -05
203430  -9 1609  HB9/ON4AEO AO77R RR73
203500  +0 1612  HB9/ON4AEO DM5CM R-20 (x3)
203715  -1 1606  HB9/ON4AEO 9A4ZM JN86 (x2)
034715  -4 1845  HB9/ON4AEO F4FCE JN06
045745  -5 2433  HB9/ON4AEO RJ6L R-08
065345  +1 1848  HB9/ON4AEO SP5IYY KO02 (x2)
103015 -19 1090  HB9/ON4AEO IZ7KGB JN71 (x3)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee