HB9HKJ/QRP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland

Receiver-side FT8 activity involving HB9HKJ/QRP, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-11 and 2026-09-18.

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 30 FT8 messages attributed to HB9HKJ/QRP 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 -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 30

First attributed message: 2026-09-11
Last attributed message: 2026-09-18 06:05 UTC

Observed FT8 message patterns

Attributed sample: 30 messages
Active dates: 2 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -21 to -9 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 10, 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 HB9HKJ/QRP in decoded directed-looking exchanges:

9A3AUH · Croatia F5PBG · France HG8LXL · Hungary OO0O · Belgium PD0WL · Netherlands

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	HB9HKJ/QRP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 18:45	40m	- / +3	DL9BDR	-4 / -	2	Partial capture
09-18 12:13	40m	- / -	IZ5CMG	-20 / -	2	Partial capture
09-18 06:04	40m	-13 / -	F5PBG	- / 0	2	✓ Closing fragment
09-18 06:04	40m	- / -	US2YW	-2 / -	3	Partial capture
09-18 06:00	40m	- / -	PD1HBL	-14 / -	2	Partial capture
09-18 05:59	40m	- / -13	YO3GNF	+5 / -	2	Partial capture
09-18 05:59	40m	- / -	PD4RJ	-22 / -	2	Partial capture
09-12 12:29	40m	- / -	PA5KK	-19 / -	2	Partial capture
09-12 04:19	40m	- / -	R6TA	+2 / -	6	Partial capture
09-11 21:14	40m	-9 / -14	YO4NF	+10 / +3	2	Partial capture
09-11 21:13	40m	- / -	<...>	+12 / -	3	✓ Closing fragment
09-11 16:28	40m	- / -12	HG8LXL	+6 / -	3	Partial capture
09-11 16:19	40m	- / -	DL1EDR	0 / -	2	Partial capture
09-11 16:11	40m	-14 / -	S51PV	- / 0	2	Partial capture
09-11 16:09	40m	- / -	UR4QWW	-13 / -	4	Partial capture
09-11 16:08	40m	-17 / -	HG8LXL	+2 / +3	4	✓ Closing observed
09-11 07:18	40m	- / -7	4O4DB	-9 / -	2	Partial capture
09-11 07:11	40m	- / -19	F4BJN	-10 / -	2	Partial capture
09-11 06:30	40m	- / -9	DL9KM	-2 / -	4	Partial capture
09-11 06:29	40m	-20 / -	OO0O	- / 0	3	✓ Closing fragment
09-11 06:22	40m	- / -	9A3AUH	+2 / -	4	Partial capture
09-11 06:22	40m	- / -	<...>	-6 / -	2	✓ Closing fragment
09-11 06:21	40m	-19 / -	IK4TVP	- / +2	2	Partial capture
09-11 06:20	40m	-19 / -	PD0WL	- / +4	2	✓ Closing fragment
09-11 06:18	40m	-20 / -	9A3AUH	- / +1	2	✓ Closing fragment
09-11 06:09	40m	- / -	F1MXE	-1 / -	3	Partial capture
09-11 06:01	40m	- / -	<...>	-7 / -	2	✓ Closing fragment
09-11 06:01	40m	- / -13	F1MXE	-6 / -	2	Partial capture
09-11 06:00	40m	- / -7	PC2J	-11 / -	2	Partial capture
09-11 05:46	40m	- / -9	IX1ABE	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
060015 -13 1093  HB9HKJ/QRP PD1HBL JO21 (x2)
060345 -17 1446  CQ HB9HKJ/QRP
060400  -2 1447  HB9HKJ/QRP US2YW KN28
060415 -14 1446  CQ HB9HKJ/QRP
060430  -1 1447  HB9HKJ/QRP US2YW KN28
060445 -13 1445  F5PBG HB9HKJ/QRP +00
060500  -2 1446  HB9HKJ/QRP US2YW KN28
060515 -13 1446  F5PBG HB9HKJ/QRP RR73
121315 -18 1798  HB9HKJ/QRP IZ5CMG JN53 (x2)
184545  -2 2188  HB9HKJ/QRP DL9BDR JO53 (x2)
195815 +16 2179  HB9HKJ/QRP 9A3K JN65
232645  -8 2178  HB9HKJ/QRP F4NPC JN23

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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