K7ACZ — 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: FN64

Receiver-side FT8 activity involving K7ACZ, decoded by SO8OO in southeastern Poland. 587 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-21 and 2026-10-23.

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 587 FT8 messages attributed to K7ACZ as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 40 m (31%) and 20 m (27%). Most decodes (89%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -3 dB.

Overview

587

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 6 80m · 238 40m · 182 20m · 161

First attributed message: 2026-06-21
Last attributed message: 2026-10-23 03:15 UTC

Observed FT8 message patterns

Attributed sample: 587 messages
Active dates: 34 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -16 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 64, moderate (-15 to -9 dB) 116, strong (≥ -8 dB) 407.

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 K7ACZ in decoded directed-looking exchanges:

HZ1TT · Saudi Arabia ×3 LZ936BA · Bulgaria ×3 LX7I · Luxembourg ×2 SV1FKZ · Greece ×2 UB6OFG · European Russia ×2 HB9EXN · Switzerland ×2 EC1A · Spain F4FTV · France G6PZ · England HB9CXZ · Switzerland IW0FFK · Italy IW0HQE · Italy

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 K7ACZ

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: FN64 · 101 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,327 km (approx.)
Last such locator decoded: 2026-09-30 00:47 UTC

Other locator fields attributed to this token: FN22 (79), DM26 (61), EM96 (18), and FN65 (18).

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	K7ACZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 03:15	40m	-15 / -8	TA2VUZ	-16 / -	5	✓ Closing observed
10-23 03:14	40m	- / -	F5PBG	-8 / -	2	Partial capture
10-23 01:56	80m	- / -	IK3ACI	+6 / -	10	Partial capture
10-23 01:55	80m	- / -19	UT7EV	+11 / -	5	✓ Closing fragment
10-23 01:54	80m	- / -	PA3KUS	+2 / -	5	Partial capture
10-23 01:53	80m	- / -5	UX5UO	+17 / -	4	✓ Closing fragment
10-23 01:52	80m	- / -	DO1NAE	-5 / -	12	Partial capture
10-23 01:52	80m	- / -	F4EWK	-2 / -	11	Partial capture
10-23 01:51	80m	-23 / -	YU65AEC	- / -	4	Partial capture
10-19 02:39	160m	- / -9	PI4DX	+15 / -	3	✓ Closing fragment
10-16 03:55	40m	- / -	F5NBU	-2 / -	4	Partial capture
10-16 03:50	40m	- / -18	IT9ODQ	-9 / -	5	Partial capture
10-16 03:42	40m	- / -22	I1RJP	+6 / -	10	Partial capture
10-16 03:36	40m	- / -	I1RJP	+16 / -	3	Partial capture
10-16 03:35	40m	- / -	4Z5PT	-8 / -	5	Partial capture
10-16 03:33	40m	-9 / -	SU8JOTA	- / 0	3	Partial capture
10-16 03:28	40m	-19 / -	II6JOTA	- / 0	3	Partial capture
10-16 01:31	40m	- / -	I1RJP	+7 / -	3	Partial capture
10-06 06:11	80m	- / -16	DL7ULA	-9 / -	5	Partial capture
10-06 06:10	80m	- / -	I5MPN	-7 / -	7	Partial capture
10-06 06:05	80m	- / -	F4BPO	-8 / -	10	Partial capture
09-30 00:47	80m	-10 / -12	SN4K	-4 / -25	14	Partial capture
09-30 00:45	80m	- / -	HA7JDU	+10 / -	2	Partial capture
09-30 00:44	80m	-11 / -	TN8GD	- / -	4	Partial capture
09-30 00:43	80m	- / -15	YO4NF	+2 / -	2	Partial capture
09-29 02:29	40m	+8 / -	4L7T	- / -	8	Partial capture
09-29 02:25	40m	-2 / -	JY5IB	- / -8	3	✓ Closing fragment
09-29 01:59	160m	- / -17	DK7ZT	+11 / -	4	Partial capture
09-29 01:58	160m	- / -	DF2GH	+12 / -	3	Partial capture
09-29 01:56	160m	- / -17	IW0FFK	+19 / -	6	✓ Closing fragment
09-29 01:55	160m	- / -11	HB9CXZ	+12 / -	2	✓ Closing fragment
09-24 22:06	80m	- / -13	EA8AJ	-18 / -	5	Partial capture
09-24 22:03	80m	- / -	S58N	+7 / -	6	Partial capture
09-24 22:01	80m	- / -	IK2DZN	-15 / -	3	Partial capture
09-24 22:00	80m	- / -	PH7R	-6 / -	7	Partial capture
09-24 21:59	80m	- / -	S58N	+10 / -	2	Partial capture
09-24 21:58	80m	-24 / -13	HB9EXN	-6 / -	5	✓ Closing observed
09-24 21:57	80m	- / -	DL1DH	-18 / -	10	Partial capture
09-24 21:54	80m	- / -17	HB9EXN	-6 / -	3	Partial capture
09-24 21:54	80m	- / -16	IW1GEU	+11 / -	2	Partial capture
09-24 21:51	80m	-16 / -9	2E0LMA	-16 / -10	3	Partial capture
09-24 21:51	80m	- / -	DL4KG	-14 / -	4	Partial capture
09-24 21:51	80m	- / -26	DO9SAM	+7 / -	6	Partial capture
09-24 21:51	80m	- / -	G6PWS	-4 / -	8	Partial capture
09-24 21:49	80m	-16 / -9	T77RN	-8 / -18	3	Partial capture
09-24 03:00	80m	- / -	PA4PA	+4 / -	2	Partial capture
09-24 03:00	80m	- / -6	R5DT	+10 / -	2	Partial capture
09-24 02:59	80m	- / -	EA3JW	-3 / -	3	Partial capture
09-24 02:58	80m	- / -	R3RB	-6 / -	10	Partial capture
09-24 02:58	80m	- / -	R2GCV	-4 / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
035300 -13 1139  K7ACZ IT9ODQ R-18 (x2)
035500  +2 2569  K7ACZ F5NBU JN28 (x4)
011700  -5 1741  K7ACZ P4/WE9V +12
031415  -6 2051  K7ACZ F5PBG IN78 (x2)
031500 -15 2090  TA2VUZ K7ACZ FN22
031515 -15 1821  K7ACZ TA2VUZ -08 (x4)
031745  -5 2578  K7ACZ UA6LCF LN07

80m

UTC    dB Audio  Message
015700  -8 2101  K7ACZ DO1NAE JN59
015715  +1 1049  K7ACZ IK3ACI JN55
015730  -3 1355  K7ACZ F4EWK JN26
015730 -13 2101  K7ACZ DO1NAE JN59
015745 +15 2518  K7ACZ UT7EV RR73
015745  +7 1049  K7ACZ IK3ACI JN55
015800  +0 2101  K7ACZ DO1NAE JN59
015815  +9 2481  K7ACZ UT7EV RR73
015815  +8 1049  K7ACZ IK3ACI JN55
015845 +14 2481  K7ACZ UT7EV RR73
015845  +7 1049  K7ACZ IK3ACI JN55 (x5)

160m

UTC    dB Audio  Message
015645 +20  676  K7ACZ IW0FFK -17 (x3)
015800 +11 1852  K7ACZ DF2GH JN68
015815 +23  676  K7ACZ IW0FFK -17
015830 +14 1852  K7ACZ DF2GH JN68
015900  +6 2158  K7ACZ DK7ZT -17
015900 +11 1852  K7ACZ DF2GH JN68
015915 +19  676  K7ACZ IW0FFK RR73
015930 +12 2158  K7ACZ DK7ZT -17 (x3)
023930 +14  945  K7ACZ PI4DX -09 (x3)

60m

UTC    dB Audio  Message
050145  -8 1645  K7ACZ DL1UDO -20 (x3)
050515 -17 1813  K7ACZ EA3CUU JN12
050545  -2 1889  K7ACZ DL6NDN JO50
050615  -1 2396  K7ACZ F6ECI -13
050615  -4 1889  K7ACZ DL6NDN JO50 (x2)
050715  +0 2396  K7ACZ F6ECI RR73
050915  -2 1889  K7ACZ DL6NDN R-23 (x2)
213645 -19 1243  K7ACZ VE1YX FN74 (x4)

20m

UTC    dB Audio  Message
182500  +1  465  K7ACZ EB3CJR JN11
182530  -9 1275  K7ACZ EI2JVB IO51
182530  -3  465  K7ACZ EB3CJR JN11 (x3)
182730  -5 1275  K7ACZ EI2JVB 73
183015 -10 2977  <...> K7ACZ FN31 (x2)
012400 -10  518  K7ACZ TJ1GD +15
013645 -14 1568  K7ACZ 9K2RT -01 (x5)
014545  -8 1970  K7ACZ 5Z4VJ RR73

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.

CW

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

Explore CW reception at SO8OO

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