ON4CT — 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: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON4CT, decoded by SO8OO in southeastern Poland. 218 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 14 UTC dates in the available aggregate history. Observed between 2026-08-18 and 2026-11-06.

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 218 FT8 messages attributed to ON4CT as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (49%), followed by 160 m (29%) and 80 m (19%). Most decodes (53%) fell within the six-hour window 01:00-07:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was -2 dB.

Overview

218

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 64 80m · 42 60m · 107 40m · 5

First attributed message: 2026-08-18
Last attributed message: 2026-11-06 06:40 UTC

Observed FT8 message patterns

Attributed sample: 218 messages
Active dates: 14 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -9 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 188.

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 ON4CT in decoded directed-looking exchanges:

CT2HEX · Portugal ×2 EX7CQ · Kyrgyzstan RI1FJZ · Franz Josef Land 8S2A · Sweden DH9AT · Fed. Rep. of Germany EA1IOK · Spain EP2AES · Iran OK1BN · Czech Republic S9R · Sao Tome & Principe ZL4OL · New Zealand 4X1UF · Israel AA3B · 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.

Most frequent locator attributed to ON4CT

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: JO10 · 172 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,335 km (approx.)
Last such locator decoded: 2026-11-06 06:40 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	ON4CT S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 06:39	60m	+18 / -	PI40EUDXF	- / -4	3	Partial capture
11-01 19:07	60m	-7 / -	4X1UF	- / -	2	Partial capture
11-01 19:04	60m	-8 / -10	8S2A	-9 / -8	5	✓ Full exchange observed
11-01 19:02	60m	-10 / +5	DH9AT	-8 / +7	4	✓ Full exchange observed
11-01 19:01	60m	-7 / -	6W/IK2HKT	- / -19	3	Partial capture
11-01 18:53	80m	+2 / -	M9KVN	- / -18	3	Partial capture
11-01 18:49	80m	-2 / -	D2UY	- / -	5	Partial capture
10-31 05:25	60m	+3 / -	S9R	- / -12	3	✓ Closing fragment
10-30 01:51	160m	- / -18	RA6MQ/P	-10 / -	2	Partial capture
10-30 01:48	160m	+1 / -	<...>	- / -	4	Partial capture
10-30 01:38	160m	-6 / -	6W/IK2HKT	- / -	7	Partial capture
10-30 01:24	160m	-2 / -	RA6MQ/P	- / -	24	Partial capture
10-30 01:16	60m	- / -	DF4WQ	-4 / -	7	Partial capture
10-30 01:15	60m	-12 / -	OK1BN	+8 / -	6	✓ Full exchange observed
10-30 01:12	60m	-4 / -	6W/IK2HKT	- / -3	6	Partial capture
10-27 05:41	60m	-1 / -	C5R	- / -	34	Partial capture
10-26 06:36	60m	-7 / -	ZL4OL	- / -21	4	✓ Closing fragment
10-22 23:49	80m	+3 / -	SV9MBH	- / -	3	Partial capture
10-22 23:46	80m	+4 / +4	ON8FAB	-7 / 0	6	Partial capture
10-22 23:45	80m	+9 / -19	4X1UF	-8 / -24	6	✓ Full exchange observed
10-22 23:42	80m	+3 / +5	DL7ACA	+7 / +4	5	✓ Full exchange observed
10-22 23:38	80m	+8 / -	CT2HEX	-17 / -7	6	✓ Closing observed
10-22 23:38	80m	+6 / -10	R6FX	-12 / -7	6	✓ Full exchange observed
10-22 23:38	80m	- / -	US2YW	+5 / -	3	Partial capture
10-22 23:36	80m	- / -	DK8HC	-3 / -	3	Partial capture
10-22 23:36	80m	+2 / -	W8LRL	-15 / -12	4	Partial capture
10-22 23:36	80m	+2 / +1	YO4NF	+8 / -	5	✓ Full exchange observed
10-22 23:32	80m	+7 / -	EX7DY	- / -8	7	✓ Closing fragment
10-22 23:26	60m	+2 / +1	EA1IOK	-7 / -	5	✓ Full exchange observed
10-22 23:18	60m	+4 / -1	EP2AES	-7 / -2	16	✓ Full exchange observed
10-15 17:57	160m	-5 / -	H49A	- / -	4	Partial capture
10-15 17:51	160m	- / -	DK9BF	-13 / -	3	Partial capture
10-15 17:50	160m	-1 / -	H49A	- / -	3	Partial capture
10-13 00:07	40m	- / -9	EK/RX3DPK	-9 / -	4	Partial capture
10-04 05:51	60m	+2 / -	Z61DX	- / -	4	Partial capture
09-24 01:02	160m	-4 / -	RI1FJZ	- / -	13	Partial capture
09-24 00:55	160m	-7 / -9	RI1FJZ	-10 / -20	11	✓ Full exchange observed
09-05 08:18	10m	- / -5	EX7CQ	-14 / -	2	✓ Closing fragment
08-30 05:06	80m	- / -	EA1CQ	-24 / -	2	Partial capture
08-30 05:03	80m	-10 / -	VP2MAA	- / -	2	✓ Closing fragment
08-30 04:55	80m	-8 / -	AA3B	- / -	3	✓ Closing fragment
08-20 04:38	40m	-14 / -	TN8GD	- / -	4	Partial capture
08-18 19:17	60m	-5 / -	OJ0YL	- / -	4	Partial capture
08-18 19:12	60m	-6 / -	8C81KS	- / -8	4	Partial capture
08-18 19:02	60m	-3 / -	OJ0YL	- / -	18	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
190245  -7  963  ON4CT DH9AT JN67
190300  -8 1568  DH9AT ON4CT +07
190315 -10  963  ON4CT DH9AT R+05
190330 -11 1568  DH9AT ON4CT RR73
190415  -9 1568  8S2A ON4CT JO10
190430  -9 2254  ON4CT 8S2A -10
190445 -10 1568  8S2A ON4CT R-08
190500  -9 2254  ON4CT 8S2A RR73
190515  -5 1568  8S2A ON4CT 73
190600  -9 1229  ON4CT IK1WGX +00
190700  -9 1568  4X1UF ON4CT JO10 (x2)
063945 +22 2869  PI40EUDXF ON4CT JO10 (x3)

80m

UTC    dB Audio  Message
234730  +8 1569  4X1UF ON4CT 73
234745  -8 1514  ON4CT ON8FAB +04
234800  +7 1569  ON8FAB ON4CT R+00 (x2)
234945  +2 1569  SV9MBH ON4CT JO10 (x3)
184900  -4 1537  D2UY ON4CT JO10 (x5)
185330  -1 1537  M9KVN ON4CT R-18 (x3)

160m

UTC    dB Audio  Message
013715  +5 1567  RA6MQ/P ON4CT JO10 (x2)
013815  -4 1567  <6W/IK2HKT> ON4CT JO10 (x7)
014845  -4 1535  <...> ON4CT JO10 (x4)
015130  -9  603  ON4CT RA6MQ/P -18 (x2)

40m

UTC    dB Audio  Message
043845 -18 1428  TN8GD ON4CT JO10 (x4)
000715 -16 1261  M0VTS/P ON4CT JO10
000730  -9  826  ON4CT EK/RX3DPK -09 (x4)

10m

UTC    dB Audio  Message
081830 -15 1772  ON4CT EX7CQ -05 (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.

CW

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

Explore CW reception at SO8OO

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