W9HBH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM79

Receiver-side FT8 activity involving W9HBH, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-07.

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 28 FT8 messages attributed to W9HBH 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 (75%), followed by 80 m (14%) and 20 m (11%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (61%); the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 4 40m · 21 20m · 3

First attributed message: 2026-06-08
Last attributed message: 2026-09-07 00:52 UTC

Observed FT8 message patterns

Attributed sample: 28 messages
Active dates: 7 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -20 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 3.

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 W9HBH in decoded directed-looking exchanges:

YO6LM · Romania TF3VS · Iceland VP8A · Falkland Islands

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 W9HBH

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: EM79 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,775 km (approx.)
Last such locator decoded: 2026-09-06 01:28 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	W9HBH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 00:51	80m	-24 / -6	VP8A	-14 / -17	3	✓ Full exchange observed
09-01 02:31	40m	-9 / -	RI1FJL	- / -	3	Partial capture
09-01 02:22	40m	- / -	W3US	-6 / -	2	Partial capture
09-01 02:19	40m	-16 / -	RI1FJL	- / -	2	Partial capture
09-01 02:08	40m	-13 / -	RI1FJL	- / -	6	Partial capture
09-01 02:01	40m	-12 / -	RI1FJL	- / -	2	Partial capture
09-01 01:55	40m	-17 / -	RI1FJL	- / -20	5	Partial capture
09-01 01:50	40m	- / -	G5TV	-2 / -	2	Partial capture
09-01 01:47	40m	-16 / -	RI1FJL	- / -	3	Partial capture
08-28 00:52	40m	- / -6	DK7ZT	-18 / -	3	Partial capture
08-28 00:52	40m	- / -	EB3JT	-4 / -	7	Partial capture
08-26 01:21	80m	- / -	SP5ES	+8 / -	2	Partial capture
08-26 01:19	80m	- / -9	TF3VS	0 / -	2	✓ Closing fragment
08-17 01:43	80m	- / -	TF4M	-17 / -	11	Partial capture
08-14 02:18	80m	- / -	EA5HM	-10 / -	3	Partial capture
08-14 02:01	80m	- / -21	DK7ZT	0 / -	4	Partial capture
08-12 02:25	40m	- / -7	YO6LM	-8 / -	3	✓ Closing fragment
08-05 01:54	80m	- / -	DC8SM	+8 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
020145 -13  910  RI1FJL W9HBH EM79 (x9)
022200  -7 2933  W9HBH W3US EL98 (x2)
023115  -8 2507  RI1FJL W9HBH EM79 (x3)
010730 -15 1445  W9HBH MI7XHT IO64

80m

UTC    dB Audio  Message
014730 -19 2401  W9HBH TF4M HP85 (x3)
011730 -23 1055  TF3VS W9HBH EM79
011945  -1 2057  W9HBH TF3VS -09 (x2)
012115 +10 1252  W9HBH SP5ES KO02 (x2)
003000  -1  495  W9HBH DH1KJ JN48
013015 -19  970  RI1FJL W9HBH EM79
020000  +2 2297  W9HBH IZ0BVU JN63
012830 -18 1139  VP8A W9HBH EM79
005130  -9  443  W9HBH VP8A -06
005215 -24 1175  VP8A W9HBH R-17
005330 -20  443  W9HBH VP8A RR73

20m

UTC    dB Audio  Message
013430 -20 1941  <...> W9HBH EM79

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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