CU2AP — 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: Azores Most frequent locator attributed to this token: HM77

Receiver-side FT8 activity involving CU2AP, decoded by SO8OO in southeastern Poland. 718 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-14.

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 718 FT8 messages attributed to CU2AP as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (39%), followed by 20 m (32%) and 40 m (15%). Most decodes (60%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

718

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 2 80m · 30 60m · 66 40m · 111 20m · 227 10m · 282

First attributed message: 2026-06-06
Last attributed message: 2026-10-14 18:59 UTC

Observed FT8 message patterns

Attributed sample: 718 messages
Active dates: 31 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 185, moderate (-15 to -9 dB) 312, strong (≥ -8 dB) 221.

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 CU2AP in decoded directed-looking exchanges:

F1PBZ · France ×2 S57MPU · Slovenia ×2 LU8EKC · Argentina ×2 ON1BH · Belgium ×2 ZY7F · Brazil ×2 7M4BEN · Japan 9A5CRZ · Croatia AP2N · Pakistan BG4UVR · China BG5CNL · China BG5GFU · China DK5DW · Fed. Rep. of Germany

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 CU2AP

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: HM77 · 117 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,932 km (approx.)
Last such locator decoded: 2026-10-14 18:56 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	CU2AP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 18:58	80m	-17 / -18	DO8JB	-5 / -	5	✓ Closing observed
10-14 18:56	80m	- / -	DO1YSF	-6 / -	2	Partial capture
10-14 18:55	80m	-15 / -	ZS6WAB	- / -	2	Partial capture
10-14 18:55	80m	-16 / -18	F1PBZ	+17 / -	5	✓ Full exchange observed
10-13 10:47	10m	-18 / -	DN9EL	- / -	2	✓ Closing fragment
10-13 10:46	10m	-12 / -	PE1OXS	- / -	2	✓ Closing fragment
10-13 10:44	10m	-12 / -	IK8RJS	- / -25	3	Partial capture
10-13 10:37	10m	-22 / -	DK9RC	- / +6	2	✓ Closing fragment
10-13 10:34	10m	- / -13	EA7GHD	-14 / -	8	Partial capture
10-10 21:25	80m	- / -	F4IDN	-1 / -	2	Partial capture
10-08 22:39	60m	-17 / -	LZ1VDK	-19 / -	3	✓ Closing observed
10-08 22:38	60m	-18 / +2	EA5JKT	-16 / -	4	✓ Full exchange observed
10-08 22:30	60m	-14 / -	VR2ZXP	- / +8	3	Partial capture
10-08 22:26	60m	- / -5	F5OYA/P	-6 / -	3	✓ Closing fragment
10-08 22:24	60m	- / -6	ON1BH	-10 / -	2	✓ Closing fragment
10-08 22:22	60m	- / -19	G3WGC	0 / -	4	✓ Closing fragment
10-08 22:20	60m	- / -9	IT9IVN	-9 / -	5	✓ Closing fragment
10-08 22:18	60m	- / -7	ON1BD	-4 / -	3	✓ Closing fragment
10-08 22:09	60m	-14 / -	S55P	-12 / -1	2	✓ Closing observed
10-08 22:01	60m	-13 / -	ER1CW	- / -15	3	✓ Closing fragment
10-08 19:28	60m	- / -3	M0WID	+2 / -	3	✓ Closing fragment
10-08 19:26	60m	- / -	IU1VJP	-15 / -	2	Partial capture
10-08 19:25	60m	- / -1	YT1Q	-9 / -	5	✓ Closing fragment
10-08 19:24	60m	- / -4	DF7EF	+12 / -	4	✓ Closing fragment
10-08 19:19	60m	-18 / -	G7SWS	-11 / -8	2	✓ Closing observed
10-08 19:16	60m	-19 / -5	DL5BTE	-5 / +2	3	✓ Full exchange observed
10-08 19:12	60m	-20 / 0	IU2VUD	-12 / +2	8	✓ Full exchange observed
10-08 19:12	60m	- / -16	SV8EUB	-6 / -	4	✓ Closing fragment
10-08 19:11	60m	-18 / -16	DK1XAM	+1 / -	6	✓ Closing observed
10-08 19:10	60m	-19 / +2	HB9AUS	+9 / +8	6	✓ Full exchange observed
10-08 19:08	60m	- / -11	DL3CY	-8 / -	2	✓ Closing fragment
10-08 19:05	60m	- / -17	SP9ODY	-1 / -	3	✓ Closing fragment
10-08 19:03	60m	- / -6	F4HSB	-19 / -	3	✓ Closing fragment
10-08 19:03	60m	- / -7	SP3IBS	-12 / -	5	✓ Closing fragment
10-08 18:58	60m	-23 / -16	DK2MAX	-13 / -	7	✓ Closing observed
10-05 22:30	160m	- / -21	UA6MF	-3 / -	5	✓ Closing fragment
10-05 22:28	160m	- / -12	SN5V	+27 / -	5	✓ Closing fragment
10-05 21:37	160m	- / -	SQ5EBM	+24 / -	8	Partial capture
10-05 21:30	160m	- / -	SQ5EBM	+25 / -	6	Partial capture
10-05 21:19	160m	- / -	SQ5EBM	+21 / -	5	Partial capture
10-05 21:13	160m	- / -	SQ5EBM	+16 / -	2	Partial capture
10-05 21:00	160m	- / -	SQ5EBM	+26 / -	16	Partial capture
10-04 23:36	160m	- / -	SN5V	+24 / -	3	Partial capture
10-03 21:42	60m	- / -8	DL1MST	-2 / -	3	✓ Closing fragment
10-03 21:38	60m	-10 / -17	IV3MUR	-7 / -4	4	✓ Full exchange observed
10-03 21:35	60m	-14 / -7	ON1JP	-21 / -8	4	✓ Full exchange observed
10-03 21:35	60m	-12 / -	W8LMG	- / -17	3	✓ Closing fragment
10-03 21:33	60m	-12 / -	IU5HIU	-16 / -5	4	✓ Closing observed
10-03 21:32	60m	-14 / -	F4AGZ	-10 / -4	3	✓ Closing observed
10-03 21:29	60m	-13 / -	EA5IT	-9 / +5	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
185515 +15  360  CU2AP F1PBZ -18
185530 -18 1226  ZS6WAB CU2AP HM77
185545 +19  361  CU2AP F1PBZ -18
185600 -12 1226  ZS6WAB CU2AP HM77
185615  -4 1941  CU2AP DO1YSF JO61
185700 -15 1226  F1PBZ CU2AP R+26
185715 +17  360  CU2AP F1PBZ RR73
185715  -7 1941  CU2AP DO1YSF JO61
185800 -17 1226  F1PBZ CU2AP 73
185815  -4 1226  CU2AP DO8JB JO32 (x3)
185930 -17 1226  DO8JB CU2AP RR73
185945  -4 1226  CU2AP DO8JB 73
190015  +2 1225  CU2AP R2FEA KO04

10m

UTC    dB Audio  Message
103645 -18 1486  CU2AP EA7GHD IM66 (x2)
103730 -20 1843  DK9RC CU2AP +06
103745 -15 1486  CU2AP EA7GHD IM66
103800 -23 1842  DK9RC CU2AP RR73
103915 -18 1486  CU2AP EA7GHD R-13
104330 -23 1842  ON6DZ CU2AP RR73
104400 -18 1842  CQ CU2AP HM77
104430 -13 1842  IK8RJS CU2AP -25 (x3)
104600 -13 1842  PE1OXS CU2AP +14 (x2)
104700 -15 1842  DN9EL CU2AP R+15 (x2)

60m

UTC    dB Audio  Message
223015 -14  864  VR2ZXP CU2AP HM77 (x3)
223800 -19 1132  EA5JKT CU2AP +12
223815 -18 2027  CU2AP EA5JKT R+02
223830 -18 1132  EA5JKT CU2AP RR73
223845 -15 2027  CU2AP EA5JKT 73
223900 -16 1132  CQ CU2AP HM77
223915 -16 1274  CU2AP LZ1VDK KN12 (x2)
224030 -17 1132  LZ1VDK CU2AP RR73
224145 -20 1799  CU2AP DD2NU 73
224200 -16 1132  CQ CU2AP HM77 (x3)

160m

UTC    dB Audio  Message
214015 +29 2845  CU2AP SQ5EBM KO02 (x5)
222845 +27 2895  CU2AP SN5V KO02 (x4)
223045  -8 1354  CU2AP UA6MF KN97
223045 +28 2895  CU2AP SN5V RR73
223115  -2 1354  CU2AP UA6MF KN97 (x4)

20m

UTC    dB Audio  Message
214430 -10 1155  JH6ETS CU2AP -25 (x2)
214530 -14 1155  M7XEI CU2AP -10
221030 -11 1604  M7HET CU2AP RR73
221115  +1  903  CU2AP SP8SRZ KN09
221130 -10 1604  IW5ALZ CU2AP +09 (x2)
221530 -12 1604  SP2CRY CU2AP -19
221600 -10 1604  PD0SF CU2AP -17 (x2)
221730 -12 1604  F4MID CU2AP -15 (x2)
222000 -24 1605  PD0SF CU2AP +01 (x3)

40m

UTC    dB Audio  Message
224715 -11 1389  PV8AJ CU2AP RR73
224815 -12 1389  EA8DNB CU2AP RR73
224930 -15 1389  PI4DX CU2AP +19 (x2)
225045 -10 1016  CU2AP PI4DX R+17
225100 -15 1389  PI4DX CU2AP RR73
225115  +2 1017  CU2AP PI4DX 73
205230  -3 1466  VJ6X CU2AP HM77 (x3)
205415  +8 2631  CU2AP DL1JHR JO60
205430  -3 1466  DL1JHR CU2AP -09
205445 +15 2631  CU2AP DL1JHR R-15
205500  -2 1466  DL1JHR CU2AP RR73
205515 +12 2631  CU2AP DL1JHR 73

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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