KK4RXE — 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: EM75

Receiver-side FT8 activity involving KK4RXE, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-07 and 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 12 FT8 messages attributed to KK4RXE as the transmitting token by decoded message structure across 3 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 -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

20m · 12

First attributed message: 2026-06-07
Last attributed message: 2026-06-16 00:54 UTC

Observed FT8 message patterns

Attributed sample: 12 messages
Active dates: 3 UTC dates
Estimated median S/N: -9 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 5.

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 KK4RXE in decoded directed-looking exchanges:

AM5CV · Spain ×2 F5NBU · France ×2 TT1GD · Chad 9A7W · Croatia EA2DYB · Spain EJ4GRC · Ireland F5MOO · France FM5GB · Martinique G3TKT · England HB9EFK · Switzerland HI8JCD · Dominican Republic IZ5IMD · Italy

Most frequent locator attributed to KK4RXE

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: EM75 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,113 km (approx.)
Last such locator decoded: 2026-06-15 03:15 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	KK4RXE S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-28 02:05	40m	- / -	EA2DYB	-5 / -	2	✓ Closing fragment
10-22 00:08	40m	- / -9	CT2HEX	-5 / -	3	Partial capture
10-21 23:44	40m	- / -14	OK2CNI	-14 / -	5	✓ Closing fragment
10-21 23:33	40m	- / -11	F1PBZ	-7 / -	3	Partial capture
10-16 00:54	40m	- / -	F6FDY	-3 / -	5	Partial capture
10-15 02:45	60m	- / -22	F8NHF	-2 / -	5	Partial capture
10-14 23:42	40m	- / -12	PQ5TA	-12 / -	2	✓ Closing fragment
10-13 01:07	40m	- / +3	FM5GB	+2 / -	3	✓ Closing fragment
10-11 00:29	40m	- / -3	HI8JCD	-23 / -	2	✓ Closing fragment
10-10 01:17	40m	- / -3	F5NBU	+3 / -	7	✓ Closing fragment
10-08 02:12	40m	- / -18	F5MOO	-7 / -	4	✓ Closing fragment
10-08 01:43	40m	- / +3	AM5CV	-13 / -	2	✓ Closing fragment
10-08 00:56	40m	- / -17	G3TKT	+3 / -	3	✓ Closing fragment
10-08 00:45	40m	- / +1	AM5CV	-16 / -	4	✓ Closing fragment
10-08 00:33	40m	- / +4	9A7W	-16 / -	2	✓ Closing fragment
10-08 00:22	40m	- / -6	K4RUM	-8 / -	2	✓ Closing fragment
10-04 22:34	40m	- / -11	HB9EFK	+11 / -	2	✓ Closing fragment
10-01 23:37	40m	- / -17	IZ5IMD	+3 / -	2	✓ Closing fragment
09-01 01:24	40m	- / -12	W4WHQ	-17 / -	2	Partial capture
09-01 00:52	40m	- / -	G5TV	-8 / -	4	Partial capture
08-31 23:58	40m	- / -	G5TV	-10 / -	2	Partial capture
08-31 23:52	40m	- / -	G5TV	-10 / -	3	Partial capture
08-29 23:05	20m	- / -7	TT1GD	+1 / -	4	✓ Closing fragment
08-16 01:56	40m	- / -	R9CS/P	-12 / -	2	Partial capture
08-16 00:06	40m	- / -	PE9JAN	0 / -	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
002230  -1  828  KK4RXE P4/WE9V -02
233145  -8 2169  KK4RXE F4ANC JN25
233345  -4 2536  KK4RXE F1PBZ -11 (x3)
234415 -11 2293  KK4RXE OK2CNI JN79 (x5)
000815  -5  540  KK4RXE CT2HEX -09 (x3)
020530  -3 2992  KK4RXE EA2DYB IN83 (x2)

60m

UTC    dB Audio  Message
024530  +2 1802  KK4RXE F8NHF -22 (x5)

20m

UTC    dB Audio  Message
230500  +4  656  KK4RXE TT1GD -07 (x4)

CW

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

Explore CW reception at SO8OO

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