KK4MA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM93

Receiver-side FT8 activity involving KK4MA, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-30 and 2026-09-07.

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 60 FT8 messages attributed to KK4MA as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (70%), followed by 40 m (28%) and 80 m (2%). Most decodes (72%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 1 40m · 17 20m · 42

First attributed message: 2026-06-30
Last attributed message: 2026-09-07 00:36 UTC

Observed FT8 message patterns

Attributed sample: 60 messages
Active dates: 8 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 27.

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 KK4MA in decoded directed-looking exchanges:

3B9FR · Rodriguez Island EB4DMH · Spain F5MXH · France G0BAZ · England G8IXM · England IZ8EYN · Italy N8PFK · United States RA4AAT · European Russia TF1EM · Iceland TJ1GD/P · Cameroon UR7UT · Ukraine EA3LF · Spain

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 KK4MA

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: EM93 · 29 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,042 km (approx.)
Last such locator decoded: 2026-09-07 00:28 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	KK4MA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 00:35	40m	-12 / -9	EA3LF	-5 / -9	5	✓ Full exchange observed
09-07 00:26	40m	-12 / -17	EX7CQ	-4 / -	12	✓ Closing observed
08-31 00:29	80m	- / -10	EC5M	-18 / -	2	✓ Closing fragment
08-31 00:27	80m	- / -12	F5RMK	-10 / -	21	Partial capture
08-29 20:47	20m	-11 / -8	EB4DMH	-8 / -8	7	✓ Full exchange observed
08-29 20:47	20m	- / -	LZ2EW	-15 / -	7	Partial capture
08-29 20:46	20m	-9 / -	OK1MXD	- / -15	2	Partial capture
08-29 20:43	20m	-8 / -	<...>	- / -4	3	Partial capture
08-29 02:26	60m	- / 0	DL8UD	-2 / -	3	✓ Closing fragment
08-29 02:26	60m	- / -	SP6JOQ	-10 / -	2	Partial capture
08-29 02:26	60m	- / -13	IK4CBO	-10 / -	3	✓ Closing fragment
08-29 02:22	60m	- / -	IK4CBO	-12 / -	3	Partial capture
08-29 02:21	60m	- / -11	DL8UD	+2 / -	5	Partial capture
08-29 02:04	40m	-6 / -	TN8GD	- / -25	3	Partial capture
08-29 02:04	40m	- / -	UW5ZM	+12 / -	4	Partial capture
08-28 11:51	20m	- / -	M7PHE	-19 / -	3	Partial capture
08-28 11:47	20m	- / +5	OZ7DR	-16 / -	8	Partial capture
08-28 11:46	20m	-12 / -11	G0BAZ	-9 / -11	3	✓ Full exchange observed
08-28 11:45	20m	- / -	PD1ADA	-9 / -	5	Partial capture
08-28 11:44	20m	-8 / -17	RA4AAT	-6 / -15	12	✓ Full exchange observed
08-28 11:43	20m	-11 / +4	G8IXM	-15 / -	5	✓ Closing observed
08-28 11:42	20m	-13 / -2	F5MXH	-8 / -9	4	✓ Full exchange observed
08-28 11:42	20m	- / -11	IZ8EYN	+3 / -	5	✓ Closing fragment
08-28 11:40	20m	-13 / -	3B9FR	- / -12	5	✓ Closing fragment
08-28 00:25	20m	- / -	BH4GUU	-20 / -	2	Partial capture
08-28 00:25	20m	-2 / -	UR7UT	- / -11	2	✓ Closing fragment
08-28 00:24	20m	-4 / -	N8PFK	- / +10	2	✓ Closing fragment
08-28 00:22	20m	-1 / -	TF1EM	- / -9	3	✓ Closing fragment
08-27 23:42	40m	-14 / -	TN8GD	- / -17	2	Partial capture
08-27 01:59	40m	-8 / -	BI4APF	- / -	2	Partial capture
08-27 01:05	40m	- / -9	F1PBZ	-2 / -	2	✓ Closing fragment
08-27 01:05	40m	- / -	F4BYA	+17 / -	3	Partial capture
08-27 00:59	40m	-20 / -	TN8GD	- / -	2	Partial capture
07-10 01:52	20m	-22 / -	Z62NS	- / -	3	Partial capture
06-30 01:58	20m	-8 / -	TJ1GD/P	- / +4	3	Partial capture
06-30 01:36	20m	-1 / -	TJ1GD/P	- / -3	9	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
002730  -5 1738  KK4MA EX7CQ -23 (x3)
002845 -13 2336  EX7CQ KK4MA EM93
002900  -1 1737  KK4MA EX7CQ -19 (x5)
003345 -12 2337  W7VA KK4MA R-15
003500  -8 1097  KK4MA EA3LF JN11 (x2)
003545 -12 2337  EA3LF KK4MA -09
003600  -4 1098  KK4MA EA3LF R-09
003615 -11 2337  EA3LF KK4MA RR73

80m

UTC    dB Audio  Message
003015  +2 2254  KK4MA IK6DLK JN63
003030 -12 1202  KK4MA F5RMK -12 (x14)

20m

UTC    dB Audio  Message
204700 -10 2108  OK1MXD KK4MA -15
204715 -13 1991  KK4MA LZ2EW KN13 (x2)
204745  -9 2108  KK4MA EB4DMH IN80
204815 -14 1975  KK4MA LZ2EW KN13
204815  -8 2108  KK4MA EB4DMH IN80
204830 -11 2108  EB4DMH KK4MA -08
204845 -19 1975  KK4MA LZ2EW KN13
204900 -11 2108  EB4DMH KK4MA -08
204915 -16 1975  KK4MA LZ2EW KN13
204915  -4 2108  KK4MA EB4DMH R-08
204930 -10 2108  EB4DMH KK4MA RR73
204945 -16 1975  KK4MA LZ2EW KN13
204945  -9 2109  KK4MA EB4DMH 73
205015 -11 1975  KK4MA LZ2EW KN13

60m

UTC    dB Audio  Message
022200 -13 1822  KK4MA IK4CBO JN54
022200  -1 1466  KK4MA DL8UD -11 (x2)
022300 -13 1823  KK4MA IK4CBO JN54
022300  +0 1466  KK4MA DL8UD -11
022330 -10 1822  KK4MA IK4CBO JN54
022330  +7 1465  KK4MA DL8UD -11
022600  -9 1822  KK4MA IK4CBO JN54
022630 -10 2035  KK4MA SP6JOQ JO81
022630  -8 1822  KK4MA IK4CBO R-13
022630  -4 1465  KK4MA DL8UD +00
022700 -10 2035  KK4MA SP6JOQ JO81
022700 -13 1822  KK4MA IK4CBO 73
022700  -2 1465  KK4MA DL8UD +00 (x2)

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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