CU3HY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Azores

Receiver-side FT8 activity involving CU3HY, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-30.

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 116 FT8 messages attributed to CU3HY as the transmitting token by decoded message structure across 24 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 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

116

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

20m · 116

First attributed message: 2026-06-07
Last attributed message: 2026-08-30 19:48 UTC

Observed FT8 message patterns

Attributed sample: 116 messages
Active dates: 24 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 33.

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 CU3HY in decoded directed-looking exchanges:

AC1O · United States CR7BRV · Portugal DB9LG · Fed. Rep. of Germany DK5OPA · Fed. Rep. of Germany G4DBW · England K4CAE · United States K5MGY · United States KC8QDP · United States KE8WMZ · United States KF8DZL · United States KG5FI · United States KJ4IXG · United States

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.

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	CU3HY S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 23:16	20m	- / -	DL1LN	-6 / -	6	Partial capture
08-30 20:00	20m	- / -5	G4DBW	+5 / -	2	✓ Closing fragment
08-28 13:02	20m	- / -	F5MXH	-11 / -	4	Partial capture
08-23 11:07	20m	- / -14	DB9LG	-2 / -	6	✓ Closing fragment
08-13 20:48	20m	-18 / -	WA9TT	- / -25	7	Partial capture
08-12 00:18	20m	- / -	DC1RSS	-15 / -	2	Partial capture
08-11 10:56	20m	- / -11	DK5OPA	-9 / -	3	✓ Closing fragment
08-11 10:56	20m	- / -10	PE9JAN	-12 / -	4	✓ Closing fragment
07-28 00:40	20m	-19 / -	VA6RCN	- / -20	5	Partial capture
07-26 17:16	20m	- / -18	YO4GIY	-1 / -	5	✓ Closing fragment
07-20 00:04	20m	-22 / -	AC3NJ	- / -14	2	Partial capture
07-19 23:01	20m	- / -9	CR7BRV	-3 / -	2	✓ Closing fragment
07-12 23:15	20m	-21 / -	R4FDW	- / -15	2	✓ Closing fragment
07-12 23:11	20m	-16 / -	KF8DZL	- / -4	2	✓ Closing fragment
07-12 23:06	20m	-21 / -	EA7JXZ	- / -2	2	Partial capture
07-09 00:08	20m	-9 / -	KJ7SAY	- / -16	3	Partial capture
06-30 00:45	20m	-17 / -	WW8L	- / -17	2	Partial capture
06-30 00:37	20m	-24 / -	KO3B	- / -24	2	Partial capture
06-28 21:28	20m	-20 / -	W6ING	- / -16	2	Partial capture
06-26 21:16	20m	-21 / -	KJ4IXG	- / -25	4	✓ Closing fragment
06-26 21:12	20m	-17 / -	VE1MDF	- / -12	3	✓ Closing fragment
06-26 21:04	20m	-18 / -	KJ4IXG	- / -19	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
130215 -13 1723  CU3HY F5MXH JN07 (x4)
194545 -13 2152  CU3HY G8ANJ IO91
194730  -5 1723  W8ATE CU3HY -16
194830  -8 1723  W8TMB CU3HY -18
200015  +3 2290  CU3HY G4DBW R-05 (x2)
231645  -5 2526  CU3HY DL1LN JO54 (x6)

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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