HB9CR0 — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland

Receiver-side FT8 activity involving HB9CR0, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-08-29.

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 25 FT8 messages attributed to HB9CR0 as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (76%), followed by 40 m (24%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 6 20m · 19

First attributed message: 2026-08-23
Last attributed message: 2026-08-29 08:14 UTC

Observed FT8 message patterns

Attributed sample: 25 messages
Active dates: 4 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 10, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB9CR0 in decoded directed-looking exchanges:

F/PA0KKV · France R1943OD · European Russia UB4COE/P · European Russia

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 UTC	Band	HB9CR0 S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-03 16:08	40m	- / -	<...>	+1 / -	7	✓ Closing fragment
08-28 12:22	20m	-8 / -	F5OYA/P	- / -	3	Partial capture
08-28 09:48	20m	-6 / -	<...>	0 / -	2	✓ Closing fragment
08-28 09:43	20m	-2 / -	<...>	-2 / -	2	✓ Closing fragment
08-28 09:39	20m	-8 / -	<...>	+24 / -	2	✓ Closing fragment
08-28 09:31	20m	- / -	DL1BGH	-9 / -	4	Partial capture
08-28 09:28	20m	-8 / -	<...>	-4 / -	2	✓ Closing fragment
08-27 21:22	40m	- / -	M0EGG	-6 / -	2	Partial capture
08-27 21:21	40m	-13 / -	<...>	-5 / -	3	✓ Closing fragment
08-23 11:53	20m	-7 / -	<...>	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
212215  -3  636  <HB9CR0> M0EGG JO01
212215  +3 1905  <HB9CR0> DK7ZT +08
212215  -5 1116  HB9CR0 <...> RR73
212245  -8  636  <HB9CR0> M0EGG JO01
212245  +1 1880  <HB9CR0> F5RRS JN36
212245  -5 1116  HB9CR0 <...> RR73 (x8)
104330 -13 1689  HB9CR0 R1943OD 73
085630 -10 1906  HB9CR0 UB4COE/P RR73

20m

UTC    dB Audio  Message
093915  -8  667  <...> HB9CR0 RRR
093930 +24  668  HB9CR0 <...> 73
094215  -6  667  CQ HB9CR0 (x2)
094345  -2  667  <...> HB9CR0 RRR
094400  -2  668  HB9CR0 <...> 73
094845  -6  667  <...> HB9CR0 RRR
094900  +0  663  HB9CR0 <...> 73
094915  -5  667  CQ HB9CR0
122215  -4  778  F5OYA/P HB9CR0 (x3)
081115  -1  676  CQ HB9CR0 (x2)
081415  -9 1051  <...> HB9CR0

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.

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