HB0/HB9HDI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Liechtenstein

Receiver-side FT8 activity involving HB0/HB9HDI, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-09-20.

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 32 FT8 messages attributed to HB0/HB9HDI 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 -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 32

First attributed message: 2026-09-19
Last attributed message: 2026-09-20 04:35 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 2 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -5 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 13.

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 HB0/HB9HDI in decoded directed-looking exchanges:

WX7P · United States

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	HB0/HB9HDI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 04:39	40m	- / -4	M0DSK	-8 / -	2	Partial capture
09-20 04:34	40m	- / -12	EW6DO	-18 / -	2	Partial capture
09-20 04:27	40m	-10 / -	<...>	- / -	2	✓ Closing fragment
09-20 04:21	40m	-5 / -	<...>	- / -	3	✓ Closing fragment
09-20 04:20	40m	-8 / -	SP7TF	- / +3	2	Partial capture
09-19 18:35	40m	- / -	HA3HZ	-6 / -	3	Partial capture
09-19 18:31	40m	-18 / -	<...>	- / -	2	Partial capture
09-19 18:29	40m	- / -24	DK7ZT	-2 / -	2	Partial capture
09-19 18:29	40m	-14 / -	S52DD	- / +9	2	Partial capture
09-19 18:24	40m	- / -12	G4FRD	-18 / -	2	Partial capture
09-19 18:23	40m	-9 / -	<...>	-3 / -	5	✓ Closing fragment
09-19 18:23	40m	- / -	RD7O	+1 / -	2	Partial capture
09-19 18:18	40m	-7 / -	<...>	-1 / -	2	✓ Closing fragment
09-19 18:18	40m	- / -10	S52DD	+5 / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
042700 -10 1340  <...> HB0/HB9HDI 73 (x2)
043000 -12 1340  <WX7P> HB0/HB9HDI RR73
043130 -11 1340  LY1DY HB0/HB9HDI -12
043415 -17 1340  HB0/HB9HDI EW6DO -12 (x2)
043530 -18 1340  OZ1TDK HB0/HB9HDI -08
043915 -11 1340  HB0/HB9HDI M0DSK (x2)
044045 -13 1341  HB0/HB9HDI RY3F -19
044115 -14 1340  HB0/HB9HDI <...> RR73
044515 -12 1340  HB0/HB9HDI KY2J FN31
044845  -1 2085  HB0/HB9HDI <...> 73
045130  +0 2085  HB0/HB9HDI EU2ABM KO43
045415 -11 1579  HB0/HB9HDI <...> 73

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