HB9SZV — 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 HB9SZV, decoded by SO8OO in southeastern Poland. 266 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-10.

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 266 FT8 messages attributed to HB9SZV as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (66%), followed by 40 m (21%) and 80 m (14%). 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 -6 dB.

Overview

266

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 36 40m · 55 20m · 175

First attributed message: 2026-06-07
Last attributed message: 2026-10-10 08:43 UTC

Observed FT8 message patterns

Attributed sample: 266 messages
Active dates: 22 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 85, strong (≥ -8 dB) 158.

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 HB9SZV in decoded directed-looking exchanges:

3A2MW · Monaco F5RRS · France K0MDS · United States K1CXW · United States K3YQA · United States K4KWZ · United States K4PRO · United States K7ZV · United States KB5JW · United States KJ4KFJ · United States KR3HAB · United States MI7RDK · Northern Ireland

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 HB9SZV

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 · 176 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-10-10 08:39 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	HB9SZV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 08:43	40m	-8 / -	IK0XBU/P	- / 0	2	✓ Closing fragment
10-10 08:42	40m	-10 / -	PF1B	- / -12	2	✓ Closing fragment
10-10 08:39	40m	-9 / -	IQ9SZ/2	- / -4	4	Partial capture
10-04 08:21	40m	-17 / -	LZ936BA	- / -	4	Partial capture
10-01 19:09	80m	-1 / -	HB10GBT	- / -5	2	Partial capture
09-27 12:36	40m	-17 / -	II4PAGE	- / -	2	Partial capture
09-22 22:02	80m	-8 / -	RI1FJZ	- / -	9	Partial capture
09-22 20:56	80m	0 / -	RI1FJZ	- / -	12	Partial capture
08-14 23:19	20m	-16 / -	AC2MW	- / -	2	Partial capture
08-14 21:49	20m	-5 / -	<...>	- / -	2	Partial capture
08-14 21:45	20m	-10 / -	K1CXW	- / -7	3	✓ Closing fragment
08-14 21:38	20m	-7 / -	KJ4KFJ	- / -7	3	✓ Closing fragment
08-14 21:37	20m	-8 / -	KR3HAB	- / -	2	Partial capture
08-13 22:05	20m	- / -6	K4PRO	+2 / -	2	✓ Closing fragment
08-12 20:32	20m	-7 / -	3A2MW	- / +1	3	✓ Closing fragment
08-11 21:57	20m	-4 / -	N2QN	- / -14	4	✓ Closing fragment
08-11 21:51	20m	-1 / -	KE9AYZ	- / +6	6	Partial capture
08-11 21:49	20m	+1 / -	K4DND	- / -20	3	Partial capture
08-11 21:42	20m	-2 / -	MI7RDK	- / +3	2	✓ Closing fragment
08-11 21:41	20m	-6 / -	K7ZV	- / -23	2	✓ Closing fragment
08-11 21:39	20m	-3 / -	N5WXB	- / -13	3	Partial capture
08-11 21:38	20m	-2 / -	K7ZV	- / -	3	Partial capture
08-11 21:35	20m	-6 / -	N2QN	- / -	4	Partial capture
08-11 21:31	20m	-2 / -	DJ0MAB	-8 / -13	3	Partial capture
08-11 21:28	20m	-3 / -	W8OBX	- / -8	3	Partial capture
08-11 21:27	20m	-4 / -	KF0MSJ	- / -	2	Partial capture
08-11 21:26	20m	-5 / -	WB5XX	- / -6	3	✓ Closing fragment
08-11 21:24	20m	-3 / -	WF2A	- / -	3	Partial capture
08-10 22:59	20m	-9 / -	VO1CH	-4 / -4	3	✓ Closing observed
08-10 22:56	20m	-8 / -	KQ4DX	- / -	3	Partial capture
08-10 22:52	20m	-10 / -	K3SAE	- / -	4	Partial capture
08-10 22:51	20m	-8 / -	WU8C	- / -10	2	✓ Closing fragment
08-10 22:47	20m	-10 / -	N1FST	-21 / -4	4	✓ Closing observed
08-10 22:44	20m	-7 / -	K4KWZ	- / +1	4	✓ Closing fragment
08-10 22:41	20m	-7 / -	K3YQA	- / -16	4	✓ Closing fragment
08-10 22:37	20m	-4 / -	WA3MH	- / -	2	Partial capture
08-10 22:32	20m	-8 / -	KB5JW	- / -9	4	✓ Closing fragment
08-10 22:28	20m	-7 / -	KR4IRP	- / -	2	Partial capture
08-10 22:27	20m	-6 / -	ND9M	- / -11	3	✓ Closing fragment
08-10 22:26	20m	-6 / -	KJ5PTH	- / -	2	Partial capture
08-10 21:57	20m	-14 / -	W2RWC	- / -	2	✓ Closing fragment
08-08 21:27	20m	- / -11	F5RRS	-15 / -	3	✓ Closing fragment
08-08 21:24	20m	-12 / -	K0MDS	- / -20	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
123715 -16 1180  II4PAGE HB9SZV R+13
082100 -16 1924  LZ936BA HB9SZV JN47 (x3)
082245  -2 2091  HB9SZV II4NTTI +06
082300 -16 1924  LZ936BA HB9SZV R+18
083915  -7  661  IQ9SZ/2 HB9SZV JN47 (x2)
084000 -17  225  HB9SZV II4NTTI +22
084015  -7  661  IQ9SZ/2 HB9SZV R+17 (x2)
084215 -10  661  PF1B HB9SZV -12 (x2)
084315  -6  660  IK0XBU/P HB9SZV +00 (x2)

80m

UTC    dB Audio  Message
210045  -3 1056  RI1FJZ HB9SZV JN47 (x12)
190915  +3  993  HB10GBT HB9SZV JN47 (x2)
065900 -15 1803  VP2MAA HB9SZV JN47

20m

UTC    dB Audio  Message
214015 -10 2581  N1WI HB9SZV JN47
214115 -12 2581  KR3HAB HB9SZV 73
214345  -2 2581  WA2TMF HB9SZV JN47
214500  -9 2581  K1CXW HB9SZV JN47 (x3)
214700 -12 2581  K8PMG HB9SZV JN47
214945  +0 2753  <...> HB9SZV JN47 (x2)
215715 -11 2660  N4ZSA HB9SZV JN47
221045 -12 1009  CQ HB9SZV JN47
231415 -22 2068  N1GRL HB9SZV JN47
231730 -24 2068  KD3BUF HB9SZV JN47
231915 -12  797  AC2MW HB9SZV JN47 (x2)

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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