KJ5MVN — 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: EL29

Receiver-side FT8 activity involving KJ5MVN, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-16.

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 1 FT8 messages attributed to KJ5MVN as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). 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

First attributed message: 2026-06-16
Last attributed message: 2026-06-16 01:22 UTC

Observed FT8 message patterns

Attributed sample: 1 messages
Active dates: 1 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 KJ5MVN in decoded directed-looking exchanges:

5B4AMX · Cyprus W4PSK · United States K1RTA · United States

Most frequent locator attributed to KJ5MVN

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: EL29
SO8OO receiver locator: KN09VW
Locator-centre separation: 9,213 km (approx.)
Last such locator decoded: 2026-06-16 01:22 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	KJ5MVN S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-29 04:02	40m	- / -	HB9TIH	+7 / -	5	Partial capture
10-29 03:59	40m	- / -18	F5UOU	-2 / -	2	Partial capture
10-29 03:32	80m	- / -18	K1RTA	-7 / -	2	✓ Closing fragment
10-26 03:18	40m	- / -	MI7XHT	-10 / -	2	Partial capture
10-01 04:03	40m	- / -21	F5UOU	-5 / -	2	Partial capture
10-01 04:02	40m	- / -	DL3MIB	+12 / -	7	Partial capture
10-01 04:02	40m	- / -	I1RJP	+12 / -	4	Partial capture
09-30 03:41	40m	- / -	I1RJP	+16 / -	3	Partial capture
09-30 03:33	40m	- / -24	LZ3CB	-10 / -	3	Partial capture
09-08 01:21	40m	- / 0	W4PSK	-8 / -	2	✓ Closing fragment
08-24 04:25	20m	- / -12	5B4AMX	+12 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
040400 +13 1140  KJ5MVN DL3MIB JN57 (x3)
031815  -6 2536  KJ5MVN MI7XHT IO64 (x2)
032630  -7  374  KJ5MVN RR73; AA5AU <...> +16
035915  -8  835  KJ5MVN F5UOU -18 (x2)
040245  +6 2677  KJ5MVN HB9TIH JN36
040245  -2  836  KJ5MVN F5UOU -15
040315  +5 2677  KJ5MVN HB9TIH JN36 (x4)
022330 -12  454  KJ5MVN CU2DX -14

80m

UTC    dB Audio  Message
033230  -5  491  KJ5MVN K1RTA -18 (x2)

20m

UTC    dB Audio  Message
042530 +16  912  KJ5MVN 5B4AMX -12 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee