HB9CEV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9CEV, decoded by SO8OO in southeastern Poland. 208 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-06 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 208 FT8 messages attributed to HB9CEV as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (23%) and 60 m (15%). Most decodes (84%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

208

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 47 60m · 31 40m · 93 20m · 30 10m · 7

First attributed message: 2026-06-06
Last attributed message: 2026-09-18 04:56 UTC

Observed FT8 message patterns

Attributed sample: 208 messages
Active dates: 30 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 100.

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 HB9CEV in decoded directed-looking exchanges:

OH0ERF · Aland Islands ×2 DO9BAU · Fed. Rep. of Germany YL4U · Latvia M8XWW · England UA4FEN · European Russia 5B4AMH · Cyprus 5Z4VJ · Kenya CT7AUT · Portugal JY5IB · Jordan RN6HK · European Russia TJ1GD/P · Cameroon VU2DED · India

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 HB9CEV

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 · 169 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-09-18 04:56 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	HB9CEV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 04:56	60m	-12 / -	EA8CZL	- / -	2	Partial capture
09-18 04:50	60m	-11 / -	EA8CZL	- / -	5	Partial capture
09-18 04:47	80m	-14 / -	N1PTM	- / -	4	Partial capture
09-16 04:49	80m	-19 / -	VP2MAA	- / -	3	Partial capture
09-16 04:41	80m	-19 / -	VE3DZ	- / -	3	Partial capture
09-15 04:21	60m	-16 / -	HC2GRC	- / -	4	Partial capture
09-15 02:21	80m	-21 / -	VA2KZ	- / -	2	Partial capture
09-14 05:43	40m	-7 / -	YN9ZDJ	- / -	2	Partial capture
09-14 05:38	40m	-5 / -	VP5/K5UR	- / -6	5	Partial capture
09-14 05:26	40m	-1 / -	R3DIK/M	- / -	20	Partial capture
09-14 05:20	40m	+1 / -	M7NXS/P	- / -	3	Partial capture
09-11 00:35	40m	- / -15	VU2DED	-4 / -	2	✓ Closing fragment
09-11 00:17	40m	- / -9	5B4AMH	+8 / -	2	✓ Closing fragment
09-10 18:54	40m	+4 / -	VJ6X	- / -	2	Partial capture
09-10 04:48	40m	-3 / -	SP1373AB	- / -	3	Partial capture
09-10 04:37	40m	-12 / -	SV8/F6BLP	- / -	2	Partial capture
09-10 04:33	40m	-17 / -	LA/DM2RM	- / -	4	Partial capture
09-10 01:18	80m	-5 / -	RW9AW	- / -	3	Partial capture
09-09 05:18	40m	-4 / -	YN8ZAC	- / -	4	Partial capture
09-07 04:55	40m	-2 / -	YN1ZGN	- / -	3	Partial capture
09-07 04:49	40m	-5 / -	YN1ZGN	- / -	3	Partial capture
08-31 15:16	20m	-18 / -	PZ5RA	- / -	2	Partial capture
08-30 00:46	160m	- / -20	YL4U	-2 / -	3	✓ Closing fragment
08-30 00:35	40m	-3 / -	RI1FJL	- / -	3	Partial capture
08-29 01:36	40m	- / -21	RN6HK	+10 / -	3	✓ Closing fragment
08-29 01:25	80m	-17 / -16	4X1UF	-19 / -9	5	✓ Full exchange observed
08-29 01:11	40m	+3 / -	KG4JOK	- / -	3	Partial capture
08-29 01:05	40m	+10 / -	TN8GD	- / -	7	Partial capture
08-29 01:01	40m	-2 / -	TN8GD	- / -	4	Partial capture
08-27 05:07	20m	-3 / -	EP2AES	- / -8	5	Partial capture
08-23 00:44	80m	-15 / -	TA3NE	- / -	3	Partial capture
08-17 17:31	20m	- / -3	UA4FEN	+4 / -	2	✓ Closing fragment
08-12 13:15	10m	-14 / -	DO9BAU	- / +9	2	✓ Closing fragment
08-12 13:11	10m	-17 / -	3A2MW	- / -	4	Partial capture
08-10 04:47	60m	-5 / -	<...>	- / -	2	Partial capture
08-09 00:10	60m	-4 / -	HK8EJZ	- / -	2	Partial capture
08-09 00:04	80m	-10 / -24	UA4FKT	0 / -	4	✓ Full exchange observed
08-08 23:59	80m	-13 / -	OH0ERF	-12 / +2	9	✓ Closing observed
08-07 05:27	20m	-14 / -	7Q5MLV	- / -	2	Partial capture
08-07 04:47	60m	-14 / -7	IK5FKF	-13 / +5	3	✓ Full exchange observed
08-06 18:04	40m	-11 / -	OH0ERF	-14 / +1	6	✓ Closing observed
08-04 04:47	80m	- / -4	DO3VE	0 / -	2	✓ Closing fragment
07-10 01:21	40m	-11 / -	TJ1GD/P	- / -	6	✓ Closing fragment
07-10 01:15	80m	-16 / -	W4PSK	- / -	5	Partial capture
07-09 12:17	20m	-13 / -15	M8XWW	-12 / -9	8	✓ Full exchange observed
07-08 04:18	80m	- / -2	HB0CC	-6 / -	2	✓ Closing fragment
07-07 23:17	40m	-6 / -	5Z4VJ	- / -9	5	✓ Closing fragment
07-03 01:23	60m	-8 / -	FS/F4EQE	- / -4	3	Partial capture
07-03 01:20	80m	-11 / -	KO4PRE	- / -	2	Partial capture
07-03 01:17	60m	-12 / -3	DL9KM	-21 / +5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
001115  -5 1866  HK8EJZ HB9CEV JN47
044745  -4 2999  <...> HB9CEV JN47 (x3)
042100 -18 1998  HC2GRC HB9CEV JN47 (x4)
045045 -12 2425  EA8CZL HB9CEV JN47 (x7)

80m

UTC    dB Audio  Message
022130 -18 1968  VA2KZ HB9CEV JN47 (x2)
022230 -24 1968  VE3DZ HB9CEV JN47 (x3)
044300 -21 2181  VP2MAA HB9CEV JN47
044330 -17 2182  VE3DZ HB9CEV JN47
044615 -23 1275  TK/4O7CC HB9CEV JN47
044930 -19 1265  VP2MAA HB9CEV JN47 (x3)
044715 -13 2395  N1PTM HB9CEV JN47 (x4)

40m

UTC    dB Audio  Message
053415  -8 2426  R3DIK/M HB9CEV JN47 (x7)
053815  -5 2417  <VP5/K5UR> HB9CEV JN47 (x5)
054215  -6 2417  SQ6FHT HB9CEV -08
054345  -7 2417  YN9ZDJ HB9CEV JN47 (x2)

20m

UTC    dB Audio  Message
121930 -10 2501  M8XWW HB9CEV RR73
121945 -12 2503  HB9CEV M8XWW 73
051700  -8 2150  7Q5MLV HB9CEV JN47 (x3)
172745 -15 2471  C91RU HB9CEV JN47
173100  +2 2472  HB9CEV UA4FEN -03 (x2)
050745  -3 2992  EP2AES HB9CEV JN47 (x5)
151615 -13 1916  PZ5RA HB9CEV JN47 (x2)

160m

UTC    dB Audio  Message
004645  +0 2027  HB9CEV YL4U -20 (x3)

10m

UTC    dB Audio  Message
131115 -21 1880  3A2MW HB9CEV JN47 (x4)
131545 -14 1878  DO9BAU HB9CEV +09 (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.

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