HB9DDS — 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 HB9DDS, decoded by SO8OO in southeastern Poland. 598 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 598 FT8 messages attributed to HB9DDS as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 60 m (33%) and 40 m (7%). Most decodes (82%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

598

Messages attributed

UTC dates decoded

121

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 14 80m · 24 60m · 200 40m · 44 20m · 304 10m · 12

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 00:48 UTC

Observed FT8 message patterns

Attributed sample: 598 messages
Active dates: 47 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 177, moderate (-15 to -9 dB) 248, strong (≥ -8 dB) 173.

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 HB9DDS in decoded directed-looking exchanges:

VE2BJG · Canada ×2 DF7EF · Fed. Rep. of Germany IW4AOT · Italy IZ8VYU · Italy AA3B · United States BG7BVI · China BH4GUU · China BU2FW · Taiwan JH7DFZ · Japan KA1MXL · United States KD2QPU · United States NF3R · United States

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 HB9DDS

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 · 438 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-11-04 00:46 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 UTC	Band	HB9DDS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 00:48	60m	-13 / -	W4CHA	- / -18	2	Partial capture
11-04 00:46	60m	-1 / -	9A2TN	- / 0	3	✓ Closing fragment
11-04 00:04	60m	+2 / -	W4CHA	- / -10	2	Partial capture
11-04 00:03	60m	-10 / 0	S57MPU	-6 / +10	5	✓ Full exchange observed
11-03 23:48	60m	-11 / +4	G8OCV	-12 / 0	4	✓ Full exchange observed
11-03 23:46	60m	-3 / -14	EB5CS	-5 / +3	4	✓ Full exchange observed
10-28 21:51	60m	-6 / -	SN2A	- / +3	2	Partial capture
10-28 21:47	60m	-1 / -14	VE1YX	-16 / -11	4	✓ Full exchange observed
10-28 21:31	160m	-20 / -	OK2USM	-10 / -10	6	Partial capture
10-28 21:25	160m	- / -18	IK3/UY7LA	-10 / -	4	Partial capture
10-27 23:37	160m	- / -18	IW4AOT	-2 / -	2	✓ Closing fragment
10-27 23:17	160m	-19 / -21	IZ8VYU	-6 / -12	4	✓ Full exchange observed
10-27 23:12	160m	- / -24	HB9CXZ	-2 / -	7	Partial capture
10-27 23:12	160m	- / -20	IW4AOT	+3 / -	3	Partial capture
10-27 22:56	60m	-14 / -11	VO1CH	-19 / -19	7	✓ Full exchange observed
10-27 22:06	60m	-4 / -20	VE2BJG	-20 / -10	9	✓ Full exchange observed
10-19 20:31	40m	- / -12	EX7CQ	-4 / -	2	Partial capture
10-17 21:06	80m	- / -3	F1PBZ	-2 / -	2	✓ Closing fragment
10-17 20:47	60m	-2 / -	UN3QA	- / -	11	Partial capture
10-14 21:17	160m	- / -17	DF7EF	+16 / -	4	✓ Closing fragment
10-12 20:28	60m	- / -11	YO3APJ	-14 / -	2	✓ Closing fragment
10-12 20:22	60m	-11 / -	G3TKT	- / -10	2	Partial capture
10-12 20:18	60m	- / -	G3TKT	-8 / -	2	Partial capture
10-12 20:16	60m	-14 / -7	M0IOY	-5 / -4	5	✓ Full exchange observed
10-12 19:34	60m	-17 / -	BD8ENU	- / -	3	Partial capture
10-03 21:11	60m	- / -14	Z61DX	-8 / -	2	✓ Closing fragment
09-23 23:08	60m	-12 / -	W1NG	- / -10	6	✓ Closing fragment
09-23 23:04	60m	-9 / -	TF8KW	- / -	8	Partial capture
09-22 20:49	60m	-17 / -5	PI4TX	-13 / -8	5	✓ Full exchange observed
09-21 22:28	60m	-4 / -2	M0LOW	+2 / -13	5	✓ Full exchange observed
09-21 20:16	60m	-8 / -11	TF1A	-9 / -3	4	✓ Full exchange observed
09-21 19:50	60m	-10 / -10	DL9KM	-17 / -12	7	✓ Full exchange observed
09-21 19:49	60m	-4 / -22	OE8CNI	-2 / +1	5	✓ Full exchange observed
09-16 22:08	80m	- / -	DO9BAU	+5 / -	3	Partial capture
09-16 22:04	80m	- / -	DO9BAU	+10 / -	4	Partial capture
09-16 21:42	80m	- / -	9A3AUH	+3 / -	11	Partial capture
09-16 21:42	80m	- / -	DO9BAU	-1 / -	12	Partial capture
09-16 21:41	80m	-20 / -	F5LOW	- / -13	2	✓ Closing fragment
09-12 20:28	60m	- / -	9A5TW	-7 / -	2	Partial capture
09-12 20:28	60m	- / -	PA0GSP	-5 / -	4	Partial capture
09-12 20:27	60m	- / -	DL7GP	+3 / -	4	Partial capture
09-12 20:27	60m	- / -	OH1LA	-13 / -	4	Partial capture
09-02 19:36	80m	- / -15	PE2JMR	-17 / -	4	✓ Closing fragment
09-02 19:34	80m	- / -7	DK7ZT	-10 / -	2	✓ Closing fragment
08-28 23:21	20m	- / -	KB3Z	-6 / -	5	Partial capture
08-28 23:18	20m	- / -	KK2M	-20 / -	2	Partial capture
08-28 23:18	20m	-10 / -	KE4PMS	+1 / -2	4	Partial capture
08-28 23:13	20m	-6 / -	KD2QPU	- / -15	2	✓ Closing fragment
08-28 23:02	20m	-4 / -	YV6BXN	- / -	5	Partial capture
08-28 22:52	20m	-3 / -	HJ3ZOM	- / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
234900 -11  980  G8OCV HB9DDS R+00
234915 -16  982  HB9DDS G8OCV RR73
235915  -1  884  G4KVI HB9DDS JN47
000300 -10 1359  S57MPU HB9DDS JN47
000315  -2 1357  HB9DDS S57MPU +00
000330 -13 1355  S57MPU HB9DDS R+10
000345 -10 1357  HB9DDS S57MPU RR73
000400  -6 1355  S57MPU HB9DDS 73
000430  +3  449  W4CHA HB9DDS -10 (x2)
004630  +0  634  9A2TN HB9DDS JN47 (x3)
004800 -16 1234  W4CHA HB9DDS -18 (x2)

160m

UTC    dB Audio  Message
212500 -16  815  <...> HB9DDS -08
212515  -5 1534  HB9DDS IK3/UY7LA R-18 (x4)
213100 -17  816  CQ HB9DDS JN47
213115  -9  816  HB9DDS OK2USM JN89
213130 -19  815  OK2USM HB9DDS -10
213145 -12  816  HB9DDS OK2USM JN89
213300 -24  816  OK2USM HB9DDS -19 (x3)
213530 -18  815  CQ HB9DDS JN47 (x3)

80m

UTC    dB Audio  Message
220015  -6 2423  HB9DDS IQ4JO JN63
220115 -15  515  HB9DDS EA3HMM JN00
220200 -24  908  CQ HB9DDS JN47
220445  +1 2422  HB9DDS IQ4JO JN63
220445  +9 2502  HB9DDS DO9BAU JO62 (x4)
220715 -19 1503  HB9DDS DO8JB JO32
220845 +12 2502  HB9DDS DO9BAU JO62 (x3)
210645  -1  455  HB9DDS F1PBZ -03 (x2)
201200 -20  810  UT5ZC HB9DDS JN47

40m

UTC    dB Audio  Message
203130  -5 1758  HB9DDS EX7CQ -12 (x2)
203930 -17  636  CQ HB9DDS JN47

20m

UTC    dB Audio  Message
231915  +0  631  HB9DDS KE4PMS FM09
232000 -10 1199  KE4PMS HB9DDS -03
232030 -12 1209  CQ DX HB9DDS JN47 (x3)
232145  -3 1207  HB9DDS KB3Z FN20
232230 -14 1211  CQ DX HB9DDS JN47
232245  -4 1207  HB9DDS KB3Z FN20 (x2)
232330  -8 1211  CQ DX HB9DDS JN47
232345  -5 1207  HB9DDS KB3Z FN20 (x2)
232430 -12 1212  BH4GUU HB9DDS RR73
232630 -15 1209  <...> HB9DDS R-12
234045 -21 2144  HB9DDS VE3ARF -08

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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