HB9MVV — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving HB9MVV, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-07-24.

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 2 FT8 messages attributed to HB9MVV as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (50%) and 10 m (50%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

20m · 1 10m · 1

First attributed message: 2026-06-11
Last attributed message: 2026-07-24 12:39 UTC

Observed FT8 message patterns

Attributed sample: 2 messages
Active dates: 2 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB9MVV in decoded directed-looking exchanges:

F4EOC · France DL9KM · Fed. Rep. of Germany E70SZ · Bosnia-Herzegovina F1ODM · France G0ACQ · England G4SRT · England HB9CNU · Switzerland HB9ETN · Switzerland OH3MB · Finland PD0PWH · Netherlands PE1LYU · Netherlands UT7UJ · Ukraine

Most frequent locator attributed to HB9MVV

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
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-07-24 12:39 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	HB9MVV S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 13:22	20m	- / -	PD2MAC/P	-9 / -	9	Partial capture
08-22 13:02	20m	- / +3	OH3MB	-14 / -	2	✓ Closing fragment
08-22 12:59	20m	- / +7	PD0PWH	-8 / -	3	✓ Closing fragment
08-17 12:58	20m	- / -10	HB9CNU	-21 / -	3	✓ Closing fragment
08-17 08:21	20m	- / -	PF2JV	-7 / -	2	Partial capture
08-17 08:21	20m	- / -12	E70SZ	-15 / -	3	✓ Closing fragment
08-17 08:14	20m	- / -21	UT7UJ	-5 / -	4	✓ Closing fragment
07-31 17:35	10m	- / -11	F4EOC	-16 / -	3	✓ Closing fragment
07-31 16:51	10m	- / +1	M0JFG	-18 / -	2	Partial capture
07-26 10:25	20m	- / -14	HB9ETN	-22 / -	2	✓ Closing fragment
07-26 10:12	20m	- / -15	F1ODM	-16 / -	2	✓ Closing fragment
07-24 13:01	10m	- / -15	OZ1LDO	-15 / -	2	Partial capture
07-24 12:42	10m	- / -15	IK1MJK	-19 / -	2	Partial capture
07-21 10:37	10m	- / -	DN9EIS	-18 / -	3	Partial capture
07-19 10:36	20m	- / +2	F1PPH	-24 / -	2	Partial capture
07-19 10:25	20m	- / -20	G0ACQ	-20 / -	2	✓ Closing fragment
07-07 12:30	20m	- / -1	DL9KM	-5 / -	2	✓ Closing fragment
06-30 09:37	20m	- / -	DL3RAJ	-4 / -	11	Partial capture
06-29 08:36	20m	- / -1	G4SRT	-7 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
122415 -21 1264  HB9MVV PA2Z R-07
125915  -8 1823  HB9MVV PD0PWH JO21 (x3)
130245  -9 1823  HB9MVV OH3MB R+03 (x2)
132245  -4  419  HB9MVV PD2MAC/P JO21 (x9)

10m

UTC    dB Audio  Message
103745 -22 1881  HB9MVV DN9EIS JN48 (x3)
123900 -24 1871  CQ HB9MVV JN47
124215 -17 1870  HB9MVV IK1MJK R-15 (x2)
124745 -12 2529  HB9MVV OZ5EEH R+00
130145 -15 2399  HB9MVV OZ1LDO JO45 (x2)
165115 -20 1334  HB9MVV M0JFG IO82 (x2)
165615 -17 1181  HB9MVV EA3CU R+12
173545 -13 1804  HB9MVV F4EOC R-11 (x3)

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