K3JX — 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: FM04

Receiver-side FT8 activity involving K3JX, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-17.

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 11 FT8 messages attributed to K3JX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

20m · 11

First attributed message: 2026-06-07
Last attributed message: 2026-06-17 00:29 UTC

Observed FT8 message patterns

Attributed sample: 11 messages
Active dates: 4 UTC dates
Estimated median S/N: -16 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 K3JX in decoded directed-looking exchanges:

PA3CPS · Netherlands F4DIA · France F5JSQ · France IK2UEC · Italy KB3Z · United States VO2NS · Canada

Most frequent locator attributed to K3JX

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: FM04 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,837 km (approx.)
Last such locator decoded: 2026-06-17 00:29 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	K3JX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 05:28	40m	- / -17	F4MXT/P	+2 / -	2	Partial capture
10-09 22:49	40m	- / -16	IK2UEC	-3 / -	3	✓ Closing fragment
09-26 05:11	40m	- / -13	F1DXP	-15 / -	4	Partial capture
09-26 05:09	40m	- / -17	F5JSQ	+1 / -	3	✓ Closing fragment
09-19 05:49	40m	- / -	F4EOC	-1 / -	5	Partial capture
09-19 04:42	40m	- / -	CT2HEX	-17 / -	3	Partial capture
09-19 04:40	40m	- / -17	EB1LA	-4 / -	2	Partial capture
09-17 05:41	40m	- / -	PD1AC	-7 / -	7	Partial capture
09-17 05:39	40m	- / -10	F4DIA	-9 / -	2	✓ Closing fragment
09-17 05:36	40m	- / -	F4DIA	-10 / -	2	Partial capture
09-05 05:42	40m	- / -	F5MOO	0 / -	2	Partial capture
09-03 00:52	80m	- / -16	VO2NS	-18 / -	3	✓ Closing fragment
08-27 03:38	80m	- / -16	ON8DM	+8 / -	2	Partial capture
08-27 03:00	20m	- / -	RN6HGI	-7 / -	3	Partial capture
08-08 05:07	20m	- / -	EA3CVI	-19 / -	3	Partial capture
08-05 00:19	20m	- / -	DL1R	-4 / -	7	Partial capture
07-30 06:14	20m	- / -	PA3CPS	-4 / -	2	✓ Closing fragment
07-30 06:06	20m	- / -23	DL1MKW	-9 / -	5	Partial capture
07-30 06:01	20m	- / -23	DL1MKW	-15 / -	5	Partial capture
07-27 02:55	40m	- / -	EB1LA	-16 / -	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
055045  -1 1782  K3JX F4EOC JN39 (x2)
034215 -17 2228  K3JX R6LE LN07
050915  -2  768  K3JX F5JSQ JN29 (x3)
051145 -17 2239  K3JX F1DXP JN05 (x4)
224915  -1 2585  K3JX IK2UEC JN45 (x3)
052800  +1  438  K3JX F4MXT/P JN25 (x2)

80m

UTC    dB Audio  Message
033745 -24 2109  K3JX KB3Z 73
033815  +7 2490  K3JX ON8DM JO10 (x2)
005245 -15 2394  K3JX VO2NS FO62 (x3)

20m

UTC    dB Audio  Message
001930  -6 2672  K3JX DL1R JN58 (x7)
050715 -19 1821  K3JX EA3CVI JN11 (x3)
053315 -11  388  K3JX IK2DZN JN45
040545  -5 1559  K3JX SV9MBH KM25
030015  -6  783  K3JX RN6HGI LN14 (x3)

CW

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

Explore CW reception at SO8OO

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