HB9TWG — 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: Switzerland Most frequent locator attributed to this token: JN37

Receiver-side FT8 activity involving HB9TWG, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-08-30.

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 58 FT8 messages attributed to HB9TWG as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (74%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

58
Messages attributed
8
UTC dates decoded
19
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-14
Last attributed message: 2026-08-30 12:37 UTC

Observed FT8 message patterns

Attributed sample
58 messages
Active dates
8 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 16.

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 HB9TWG in decoded directed-looking exchanges:

Most frequent locator attributed to HB9TWG

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
JN37 · 45 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,116 km (approx.)
Last such locator decoded
2026-08-30 12:36 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 UTCBandHB9TWG S/NCounterpartCounterpart S/NMsgsCapture
08-30 12:36 20m -13 / - PD1B -15 / -22 4 ✓ Closing observed
08-30 12:30 20m -18 / - TK4QP - / -5 2 ✓ Closing fragment
08-30 12:14 20m - / -22 TA3F -15 / - 7 Partial capture
08-30 12:09 20m -12 / - OH2XO - / - 2 Partial capture
08-30 12:07 20m -2 / - RN3PD - / - 2 Partial capture
08-30 12:05 20m -9 / - CT7AIC - / -16 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
121045 -10 2402  OH2XO HB9TWG JN37
121400 -12 1762  HB9TWG TA3F R-22 (x7)
121915 -14 1810  YL3QZ HB9TWG JN37
123030 -17 1440  TK4QP HB9TWG R-05 (x2)
123600 -11 1490  PD1B HB9TWG JN37 (x2)
123645 -15 1490  HB9TWG PD1B RR73
123700 -15 1489  PD1B HB9TWG 73

CW

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

Explore CW reception at SO8OO

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