7K1CPT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: QM06

Receiver-side FT8 activity involving 7K1CPT, decoded by SO8OO in southeastern Poland. 472 FT8 messages attributed to this token as transmitter, on 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-08-25.

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 472 FT8 messages attributed to 7K1CPT as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (99%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -7 dB.

Overview

472

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

20m · 472

First attributed message: 2026-07-03
Last attributed message: 2026-08-25 18:51 UTC

Observed FT8 message patterns

Attributed sample: 472 messages
Active dates: 10 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -12 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 160, strong (≥ -8 dB) 306.

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 7K1CPT in decoded directed-looking exchanges:

BG4OOO · China ×2 DL7HS · Fed. Rep. of Germany ×2 ON7DJ · Belgium ×2 EA8UP · Canary Islands DL3IAE · Fed. Rep. of Germany SD5X · Sweden SP7CDG · Poland SV8QG · Greece SV9CVY · Crete UN7LZ · Kazakhstan 2E0FUM · England 2E0TLF · England

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 7K1CPT

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: QM06 · 124 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,707 km (approx.)
Last such locator decoded: 2026-08-25 18:46 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	7K1CPT S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-22 19:25	160m	- / -	OZ1ADL	-1 / -	4	Partial capture
09-22 19:24	160m	- / -	SP5UFK	-2 / -	5	Partial capture
09-21 19:55	160m	- / -1	SD5X	+7 / -	3	✓ Closing fragment
09-21 19:42	160m	- / -	SP5UFK	+3 / -	28	Partial capture
09-21 19:38	160m	- / -15	HB9CXZ	-8 / -	14	Partial capture
09-21 19:36	160m	- / -20	DL3IAE	+8 / -	3	✓ Closing fragment
09-21 19:25	160m	- / -17	SV8QG	0 / -	4	✓ Closing fragment
09-21 17:22	160m	- / -14	SP3BPU	-3 / -	10	Partial capture
09-21 16:04	160m	- / -21	SV9CVY	-10 / -	4	✓ Closing fragment
09-21 16:02	160m	- / -11	LY7M	+10 / -	2	Partial capture
08-25 18:48	20m	-8 / -15	ON2CB	+13 / -9	7	✓ Full exchange observed
08-25 18:47	20m	-8 / -	PD0DEX	- / -14	2	✓ Closing fragment
08-25 18:41	20m	-5 / -	SP3CFM	-6 / -3	2	✓ Closing observed
08-25 18:40	20m	-7 / -	A92AE	- / -7	2	✓ Closing fragment
08-25 18:39	20m	-10 / -12	PD2PE	0 / -14	5	✓ Full exchange observed
08-25 18:38	20m	-8 / -	OK1XLE	- / -5	2	✓ Closing fragment
08-25 18:30	20m	-4 / -6	R2AFI	+11 / -13	5	✓ Full exchange observed
08-25 18:27	20m	-4 / -	SP6U	- / -19	4	Partial capture
08-25 18:25	20m	-4 / -	SP9SOS	- / -16	4	Partial capture
08-25 18:24	20m	-6 / -	UY5AO	- / -8	2	✓ Closing fragment
08-25 18:22	20m	-6 / +1	F4FVW	+14 / -	4	✓ Closing observed
08-25 18:21	20m	-3 / -	OH2CJB	- / -9	3	✓ Closing fragment
08-25 18:20	20m	- / -	M0MXR	-4 / -	3	Partial capture
08-25 18:17	20m	-4 / -12	PD1ROS	+7 / -4	5	✓ Full exchange observed
08-25 18:16	20m	-4 / -	G4NGH	- / -20	2	Partial capture
08-25 18:15	20m	-4 / -	TA4EE	0 / -14	3	✓ Closing observed
08-25 18:11	20m	-8 / -	DL2TTA	- / -14	2	✓ Closing fragment
08-25 18:08	20m	- / -3	EA2EWL	-8 / -	4	Partial capture
08-25 18:05	20m	-4 / -	SP9IHP	-20 / -	2	✓ Closing observed
08-25 18:04	20m	-2 / -17	IW1QBR	+6 / -11	3	✓ Full exchange observed
08-25 09:12	20m	- / -6	CT7AUT	0 / -	2	✓ Closing fragment
08-24 19:48	20m	-5 / -	CT1END/P	- / -	7	Partial capture
08-24 19:41	20m	-7 / 0	ON6DSL	-5 / -	6	✓ Closing observed
08-24 19:37	20m	-6 / -	SP4TKA	- / -8	2	✓ Closing fragment
08-24 19:37	20m	-6 / -	YO7LPM	- / -3	2	✓ Closing fragment
08-24 19:36	20m	-4 / +2	DL5FCE	0 / -12	5	✓ Full exchange observed
08-24 19:19	20m	-8 / -9	DH1KU	-7 / -14	4	✓ Full exchange observed
08-24 19:17	20m	-4 / -	EC5CFV	-16 / -9	4	✓ Closing observed
08-24 19:15	20m	-6 / -22	M0ZJB	+16 / -11	6	✓ Full exchange observed
08-24 19:13	20m	-9 / -	DG2LA	+1 / -12	3	✓ Closing observed
08-24 19:12	20m	-11 / -10	RN2FQ	-15 / -1	3	✓ Full exchange observed
08-24 19:11	20m	-9 / -	R6ADH	- / -19	2	✓ Closing fragment
08-24 19:10	20m	-5 / -	SP9NR	- / -2	2	✓ Closing fragment
08-24 19:09	20m	- / -13	EA7BD	-7 / -	3	✓ Closing fragment
08-24 19:06	20m	-10 / -	EA4LX/P	+14 / -8	3	✓ Closing observed
08-24 19:03	20m	-13 / -	EI4JKB	- / -	3	✓ Closing fragment
08-24 19:00	20m	- / -	EI4JKB	-21 / -	2	Partial capture
08-24 18:58	20m	- / -7	DL7HS	0 / -	2	Partial capture
08-24 18:58	20m	-11 / -	G3MTL	-14 / -	5	✓ Closing observed
08-24 18:56	20m	-15 / -18	G1BJC	-8 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
195500  +3  620  7K1CPT SD5X -01
195515  +1 2369  7K1CPT SP5UFK KO11
195530  +8  620  7K1CPT SD5X -10
195545  -6 2370  7K1CPT SP5UFK KO11
195600  +9  620  7K1CPT SD5X RR73
195645  +1 2369  7K1CPT SP5UFK KO11 (x5)
192545  +0 2194  7K1CPT OZ1ADL JO46
192615  -2 1749  7K1CPT SP5UFK KO11
192615 -10 2194  7K1CPT OZ1ADL JO46 (x3)

20m

UTC    dB Audio  Message
184130  -5 2783  SP3CFM 7K1CPT -03
184215  -6 2689  7K1CPT SP3CFM 73
184530  -8 2783  SP5UAM 7K1CPT 73
184600 -10 2783  CQ 7K1CPT QM06
184615 +25 2781  7K1CPT PD1AG JO21
184630  -6 2783  EA4IAH 7K1CPT -06
184730  -6 2783  PD0DEX 7K1CPT -14 (x2)
184845  +7 2782  7K1CPT ON2CB JO20
184900  -8 2784  ON2CB 7K1CPT -09
184915 +12 2782  7K1CPT ON2CB R-15 (x3)
185100  -9 2783  ON2CB 7K1CPT RR73
185145 +14 2782  7K1CPT ON2CB 73

80m

UTC    dB Audio  Message
174800 -10 2501  7K1CPT ZS6WAB -19 (x2)
194000  +6 1227  7K1CPT OK1TEP JN69

10m

UTC    dB Audio  Message
100545 -18 1781  7K1CPT EA8UP -24 (x5)

40m

UTC    dB Audio  Message
172615  -9  539  7K1CPT YR50NADIA -21

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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