HB9AMO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN36

Receiver-side FT8 activity involving HB9AMO, decoded by SO8OO in southeastern Poland. 108 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-09-16.

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 108 FT8 messages attributed to HB9AMO as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (67%), followed by 80 m (21%) and 40 m (8%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -2 dB.

Overview

108

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 72 80m · 23 40m · 9 20m · 4

First attributed message: 2026-07-08
Last attributed message: 2026-09-16 05:21 UTC

Observed FT8 message patterns

Attributed sample: 108 messages
Active dates: 7 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -11 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 90.

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 HB9AMO in decoded directed-looking exchanges:

EA4HPY · Spain RI1FJL · Franz Josef Land RU3AMO · European Russia 5Z4VJ · Kenya EA8BS · Canary 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 HB9AMO

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: JN36 · 97 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-09-14 14:37 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	HB9AMO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 14:39	40m	- / -	HG8LXL	-8 / -	4	Partial capture
09-14 14:36	40m	- / +8	IU7VOL	-18 / -	2	Partial capture
09-14 14:36	40m	-5 / -	RU3AMO	-9 / -25	8	✓ Closing observed
09-14 14:32	40m	-6 / -	RU3AMO	- / -	2	Partial capture
09-04 21:41	160m	-14 / -	RI1FJL	- / -	4	Partial capture
09-04 21:23	160m	-2 / -	RI1FJL	- / -	17	Partial capture
09-04 21:09	160m	+2 / -	RI1FJL	- / -	20	Partial capture
09-04 21:08	160m	- / +1	EA4HPY	-18 / -	2	✓ Closing fragment
09-04 20:49	160m	-4 / -	RI1FJL	- / -	27	Partial capture
09-04 20:45	160m	-2 / -	RI1FJL	- / -	2	Partial capture
09-04 19:46	80m	-2 / -	RI1FJL	- / -13	9	Partial capture
09-04 19:38	80m	-2 / -	RA0SCA	- / -	4	Partial capture
09-02 21:29	80m	- / -	PC2J	-6 / -	2	Partial capture
09-02 21:10	80m	-4 / -	RI1FJL	- / -	2	Partial capture
09-02 20:43	80m	-10 / -17	5Z4VJ	-12 / -	3	✓ Closing observed
08-31 22:40	80m	- / -	DO9BAU	+2 / -	7	Partial capture
08-31 22:40	80m	- / -	LZ2VQ	-6 / -	3	Partial capture
08-31 22:39	80m	+7 / -	EA8BS	- / +9	4	✓ Closing fragment
08-31 20:36	80m	- / -	LZ2VQ	+1 / -	2	Partial capture
08-28 21:13	20m	-10 / -	RI1FJL	- / +5	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
213015  -8  578  HB9AMO PC2J JO22
193845  +0 1352  RA0SCA HB9AMO JN36 (x4)
194630  +2  658  RI1FJL HB9AMO JN36 (x9)
052100 -11 1745  VP2MAA HB9AMO R-08

40m

UTC    dB Audio  Message
143600  -9 2144  RU3AMO HB9AMO JN36 (x2)
143645 -17 2077  HB9AMO IU7VOL JN81
143700  -4 2144  RU3AMO HB9AMO JN36
143715 -19 2077  HB9AMO IU7VOL +08
143730  -3 2144  RU3AMO HB9AMO JN36 (x2)
143815  -9  947  HB9AMO RU3AMO RR73
143830  -4 2144  RU3AMO HB9AMO 73 (x2)
143915 -10 1647  HB9AMO HG8LXL KN06
143915  +5 2140  HB9AMO 9A4ZM JN86
143945  -4 1647  HB9AMO HG8LXL KN06 (x3)

160m

UTC    dB Audio  Message
212945  +1 1634  RI1FJL HB9AMO JN36 (x15)

20m

UTC    dB Audio  Message
123930  -4 2485  <...> HB9AMO -15
211315  -9 1129  RI1FJL HB9AMO JN36 (x3)

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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