HB9DKC — 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: JN47

Receiver-side FT8 activity involving HB9DKC, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-23 and 2026-10-21.

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 18 FT8 messages attributed to HB9DKC as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 80 m (17%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.

Overview

18
Messages attributed
5
UTC dates decoded
6
Active 15-min windows
-7 dB
Estimated median S/N

Bands

First attributed message: 2026-09-23
Last attributed message: 2026-10-21 14:55 UTC

Observed FT8 message patterns

Attributed sample
18 messages
Active dates
5 UTC dates
Estimated median S/N
-7 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 11.

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 HB9DKC 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 HB9DKC

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
JN47 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-10-21 14:55 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 UTCBandHB9DKC S/NCounterpartCounterpart S/NMsgsCapture
10-21 15:30 80m - / -7 DO2BBC -16 / - 3 ✓ Closing fragment
10-21 14:55 40m - / -8 SP6LHT +3 / - 3 ✓ Closing fragment
10-20 03:33 40m -6 / -8 IU8RFW -14 / - 5 ✓ Full exchange observed
10-19 03:44 40m +7 / - IZ8PPI - / -15 2 ✓ Closing fragment
10-19 03:44 40m -12 / -9 RK4FF -15 / +1 6 ✓ Full exchange observed
09-23 06:32 80m - / +2 ON1JP -21 / - 2 Partial capture
09-23 06:31 80m -7 / - IQ4JO - / +10 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
063115  -7 2308  CQ HB9DKC JN47
063145  -7 2308  IQ4JO HB9DKC +10 (x2)
063230 -20 1320  HB9DKC ON1JP +02 (x2)
040145 -13  743  HB9DKC F5LMJ JN28
040145 -10 1683  HB9DKC DL/N0PNG R+08
153000 -17 1294  HB9DKC DO2BBC JO41 (x3)
40m
UTC    dB Audio  Message
034630 -15  905  RK4FF HB9DKC R+01
034645 -16 2075  HB9DKC RK4FF RR73
034700 -18  905  RK4FF HB9DKC 73
033245  -4 1078  CQ HB9DKC JN47
033300 -14 1597  HB9DKC IU8RFW JN70
033315  -5 1078  IU8RFW HB9DKC +11
033330 -14 1597  HB9DKC IU8RFW R-08
033345  -6 1078  IU8RFW HB9DKC RR73
033400 -14 1597  HB9DKC IU8RFW 73
145015 -15 1100  CQ HB9DKC JN47                        a1
145115 -16 1099  PD4RJ HB9DKC RR73
145515 -19 1708  CQ HB9DKC JN47
145530  +2 1579  HB9DKC SP6LHT JO80 (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.

CW

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

Explore CW reception at SO8OO

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