WB9Z — 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: United States Most frequent locator attributed to this token: EL89

Receiver-side FT8 activity involving WB9Z, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 54 FT8 messages attributed to WB9Z as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 20 m (9%) and 80 m (4%). Most decodes (100%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 2 40m · 47 20m · 5

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 02:51 UTC

Observed FT8 message patterns

Attributed sample: 54 messages
Active dates: 7 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 32.

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 WB9Z in decoded directed-looking exchanges:

HB9CXZ · Switzerland 9K2GR · Kuwait NE5TX · United States SP5LST · Poland TN8GD · Republic of the Congo

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 WB9Z

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: EL89 · 41 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,504 km (approx.)
Last such locator decoded: 2026-09-04 02:51 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	WB9Z S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 02:59	160m	- / -20	HB9CXZ	+3 / -	8	✓ Closing fragment
09-04 01:04	40m	-10 / -7	RI1FJL	-11 / -	10	Partial capture
09-04 00:03	40m	-2 / -	HF40BLP	- / -12	2	Partial capture
09-03 23:31	40m	- / -	PE1NPS	+4 / -	3	Partial capture
09-03 23:26	40m	-4 / -	TN8GD	- / -12	6	✓ Closing fragment
09-03 22:55	40m	-6 / -	D2ACE	- / -	3	Partial capture
09-01 03:03	40m	-6 / -	RI1FJL	- / -	4	Partial capture
09-01 02:56	40m	- / -	UA4FKT	+14 / -	2	Partial capture
09-01 02:55	40m	-9 / -	SP5LST	- / -11	2	✓ Closing fragment
09-01 02:55	40m	- / -18	R2BQM	+3 / -	3	Partial capture
09-01 02:54	40m	-8 / -	NE5TX	- / -8	2	✓ Closing fragment
09-01 02:48	40m	-7 / -	RI1FJL	- / -	2	Partial capture
08-30 23:49	40m	-14 / -	<...>	- / -18	2	Partial capture
08-28 03:37	40m	-10 / -	RI1FJL	- / -	4	Partial capture
08-28 02:47	40m	-9 / -	RI1FJL	- / -	8	Partial capture
08-11 01:23	40m	- / -8	R2BQM	-8 / -	4	Partial capture
08-08 01:52	40m	- / -1	9K2GR	-19 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
025930  +3 2187  WB9Z HB9CXZ JN46 (x8)

40m

UTC    dB Audio  Message
233230  +5 2512  WB9Z PE1NPS JO22
000315  -2  566  HF40BLP WB9Z R-12 (x2)
000415  +2  403  3Z100PKP WB9Z R-12
010415 -14 2391  RI1FJL WB9Z EL89 (x2)
010500 -11  508  WB9Z RI1FJL -07
010515 -11 2391  RI1FJL WB9Z EL89 (x8)

80m

UTC    dB Audio  Message
011900 -18  526  WB9Z MI7XHT IO64
011930  -1 2410  WB9Z SP1MGM JO73

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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