HB9GFJ — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving HB9GFJ, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-10-16.
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 10 FT8 messages attributed to HB9GFJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (40%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-16 23:55 UTC
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -11 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 3.
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 HB9GFJ in decoded directed-looking exchanges:
Most frequent locator attributed to HB9GFJ
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
- JN36 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-09-18 20:43 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 UTC | Band | HB9GFJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 23:54 | 40m | -22 / - | R4ZZ | -14 / +2 | 4 | ✓ Closing observed |
| 10-11 11:35 | 40m | - / -9 | OK1FKY | -8 / - | 2 | Partial capture |
| 08-28 14:20 | 20m | -10 / - | YO5PHL | - / -7 | 2 | ✓ Closing fragment |
| 08-07 10:08 | 20m | - / - | IZ4AIF | -5 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204130 -9 2075 HB9GFJ II9IAGM -13 204315 +3 3055 CQ HB9GFJ JN36 (x2) 113545 -7 1250 HB9GFJ OK1FKY -09 (x2) 235415 -17 2063 HB9GFJ R4ZZ RR73 235430 -21 2063 R4ZZ HB9GFJ R+02 235445 -11 2064 HB9GFJ R4ZZ RR73 235500 -23 2064 R4ZZ HB9GFJ 73
UTC dB Audio Message 100430 -20 2102 HB9GFJ IQ4JO JN63 100800 -2 3031 HB9GFJ IZ4AIF JN54 (x3) 141815 -18 3053 CQ HB9GFJ JN36 (x3) 142015 -11 3053 YO5PHL HB9GFJ -07 (x2) 142145 -9 3053 CQ HB9GFJ JN36
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.
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