HB9HDK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Locator transmitted in a decoded message: JN37

Receiver-side FT8 activity involving HB9HDK, decoded by SO8OO in southeastern Poland. 532 related FT8 messages, 30 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 59 UTC dates. Heard between 2026-05-24 and 2026-08-22.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

532

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-05-24
Last seen: 2026-08-22 06:35 UTC

Frequent QSO partners observed at SO8OO

Stations HB9HDK worked most often, as logged from our receiver:

IQ9BF · Sicily ×3 OK1FRA · Czech Republic ×2 M0IEP · England ×2 IQ7KM · Italy ×2 IQ0VT · Italy ×2 PH1MRF · Netherlands IQ0OS · Italy DK5UR · Fed. Rep. of Germany F5SZB · France F1PWS · France DH2UHE · Fed. Rep. of Germany IZ0GIY · Italy

Activity Heatmap

Locator transmitted by HB9HDK

Approximate centre of JN37, decoded 2026-08-22 08:35 UTC. A transmitted locator is not proof of the operator's permanent location.

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	HB9HDK S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 07:56	40m	- / -9	F1PWS	-20 / -	2	✓ Closing fragment
08-22 07:54	40m	- / -2	DM2BPG	-8 / -	4	✓ Closing fragment
08-22 07:47	40m	- / -1	HB9IRO	-9 / -	3	✓ Closing fragment
08-16 08:18	20m	- / +2	OK1UOZ	+8 / -	2	✓ Closing fragment
08-14 07:27	20m	- / -2	HB9CNU	-11 / -	3	✓ Closing fragment
08-12 14:16	20m	- / -	DK3AE	-14 / -	2	Partial capture
08-12 14:00	20m	- / -16	DK3HV	-8 / -	7	Partial capture
08-11 08:04	20m	- / -	M0IEP	-16 / -	2	Partial capture
08-11 06:08	80m	- / -21	DH5NC	-16 / -	2	✓ Closing fragment
08-11 05:28	60m	- / -14	OK1DO	-4 / -	3	Partial capture
08-10 07:14	20m	- / -16	DL9KM	-5 / -	2	Partial capture
08-10 06:53	20m	- / -17	PD4HT	-18 / -	3	Partial capture
08-10 06:23	40m	- / -24	SQ6PZL	-14 / -	4	✓ Closing fragment
08-10 05:32	40m	- / -	US2YW	-4 / -	4	Partial capture
08-10 05:29	40m	- / -5	DL5MKR	-19 / -	5	✓ Closing fragment
08-08 06:52	20m	- / -	F4LNM	-11 / -	4	Partial capture
08-08 06:11	20m	- / -9	CR5VP	-9 / -	6	Partial capture
08-07 07:51	20m	- / +5	CT3MD	-10 / -	2	✓ Closing fragment
08-07 06:48	40m	- / -2	DL9KM	-13 / -	3	✓ Closing fragment
08-07 06:27	40m	- / -12	SP0DF	-13 / -	3	✓ Closing fragment
08-06 10:11	20m	- / -	M0LAD	-12 / -	5	Partial capture
08-06 09:36	20m	- / -	PD0PWH	-1 / -	3	Partial capture
08-04 08:48	20m	- / -	EA1ACJ	-20 / -	3	Partial capture
08-04 08:07	20m	- / -	CT3MD	-16 / -	3	Partial capture
08-03 13:57	10m	- / -18	IU0VOG	-16 / -	2	Partial capture
08-03 08:08	40m	- / -	DM2GG	-17 / -	2	Partial capture
08-02 08:26	20m	- / -7	<...>	-6 / -	2	Partial capture
08-02 07:34	40m	- / -19	SP9WAZ	-16 / -	4	Partial capture
08-01 09:57	20m	- / -	M7MOK	-15 / -	3	Partial capture
08-01 09:56	20m	- / -	M0IEP	-6 / -	2	Partial capture
08-01 09:44	20m	- / -	IZ0GIY	-6 / -	2	✓ Closing fragment
08-01 09:43	20m	- / -	M0IEP	-6 / -	4	Partial capture
07-30 08:08	20m	- / -	SV5BYP	-17 / -	2	Partial capture
07-30 07:41	20m	- / -	M0IEP	0 / -	4	Partial capture
07-30 07:34	20m	- / -	M0IEP	-16 / -	3	Partial capture
07-30 07:15	20m	- / -	OD5KU	-11 / -	9	Partial capture
07-30 07:13	20m	- / -6	PD4PMS	-14 / -	2	Partial capture
07-29 08:40	20m	- / -13	E70SZ	-10 / -	3	✓ Closing fragment
07-28 13:13	20m	- / -	PD0IFI	-16 / -	3	Partial capture
07-28 08:07	20m	- / -	UA6HGM	-5 / -	4	Partial capture
07-28 07:58	20m	- / +4	EC5M	-19 / -	3	✓ Closing fragment
07-25 09:36	20m	- / +8	ON4WRA/P	-3 / -	2	✓ Closing fragment
07-23 06:11	40m	- / -12	DL6UM	-14 / -	3	✓ Closing fragment
07-23 06:11	40m	- / -16	SM7JKW	-18 / -	4	✓ Closing fragment
07-23 05:59	40m	- / -17	<...>	0 / -	2	Partial capture
07-22 11:52	10m	- / +1	PE1MMZ	-4 / -	4	✓ Closing fragment
07-11 08:34	20m	- / -5	OK1FRA	+5 / -	2	✓ Closing fragment
07-11 08:24	20m	- / -10	PE1ARS	-20 / -	2	Partial capture
07-11 08:12	20m	- / -3	PH1MRF	-15 / -	3	✓ Closing fragment
07-11 07:44	40m	- / -	IZ5RKH	-16 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
105045  -5 2600  HB9HDK IQ4JO R-14
105130 -15  984  SQ7OBH HB9HDK -16
110645 -14  798  HB9HDK EH7WWA -18
115215  +0  682  HB9HDK PE1MMZ JO21 (x4)
120900 -22 1580  HB9HDK <...> -10
135730 -15 2484  HB9HDK IU0VOG JN61 (x2)
082315 -20 1048  CQ HB9HDK JN37                        a1
124430 -14 2249  HB9HDK E75W RR73
125515 -18 1346  CQ HB9HDK JN37
104645 -15  996  HB9HDK II7MGBT -07
083530 -16 1112  CQ HB9HDK JN37

40m

UTC    dB Audio  Message
062315 -15  918  HB9HDK SQ6PZL JO80 (x4)
074730 -12 1219  HB9HDK HB9IRO JN46 (x3)
075230 -19 1219  HB9HDK HA1DSL JN86
075415  -4 1079  HB9HDK DM2BPG JO51 (x4)
075645 -20 2033  HB9HDK F1PWS R-09 (x2)
075830 -15  993  CQ HB9HDK JN37

20m

UTC    dB Audio  Message
140130 -10  888  HB9HDK DK3HV R-16 (x4)
140500 -14  889  HB9HDK M0IEP IO91
141615 -15 1994  HB9HDK DK3AE JO51 (x2)
072715 -12 1015  HB9HDK HB9CNU JN37 (x3)
093045 -13 1955  HB9HDK EA3FN -03
081800  +9  362  HB9HDK OK1UOZ +02 (x2)
135445 -17 1071  HB9HDK G4YTW IO81
055430  -9 1001  HB9HDK II7MGBR -16

80m

UTC    dB Audio  Message
060030 -17 1472  HB9HDK DK6WH RR73
052345 -24 1697  HB9HDK DK5OPA JO30
060830 -15 1554  HB9HDK DH5NC -21 (x2)

60m

UTC    dB Audio  Message
180415  -8  640  HB9HDK DF8RJ JO42 (x2)
173100 -11 2058  HB9HDK IQ7KM +03 (x2)
054045 -23 1401  HB9HDK DK2KGB RR73
052845  -4 2250  HB9HDK OK1DO JO60 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.