OZ1CM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO46

Receiver-side FT8 activity involving OZ1CM, decoded by SO8OO in southeastern Poland. 181 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-07-24.

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 181 FT8 messages attributed to OZ1CM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (26%) and 10 m (2%). Several six-hour UTC windows tied for the largest share (84%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

181

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 131 20m · 47 10m · 3

First attributed message: 2026-07-21
Last attributed message: 2026-07-24 12:50 UTC

Observed FT8 message patterns

Attributed sample: 181 messages
Active dates: 4 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 106, strong (≥ -8 dB) 45.

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 OZ1CM in decoded directed-looking exchanges:

EW2ZC · Belarus ×2 7Z1BM · Saudi Arabia 9K2MP · Kuwait CR7BRV · Portugal HB9XBY · Switzerland IK4LZH · Italy UA3ZMQ · European Russia UA4FEN · European Russia UA6YW · European Russia UR5VPR · Ukraine YO4NF · Romania YO6LM · Romania

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 OZ1CM

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: JO46 · 83 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,118 km (approx.)
Last such locator decoded: 2026-07-24 12:50 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	OZ1CM S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-24 12:34	20m	-16 / -	Z62NS	- / -	3	Partial capture
07-24 12:25	20m	-12 / -	IV3ABA	- / -	3	Partial capture
07-24 12:21	20m	-16 / -	TA4INO	- / -	2	Partial capture
07-24 12:18	20m	-16 / -13	YO6LM	-1 / -14	3	✓ Full exchange observed
07-24 12:16	20m	-15 / -	UA6YW	-15 / -10	5	✓ Closing observed
07-24 10:41	20m	- / -	F4HSB	-18 / -	3	Partial capture
07-24 10:40	20m	-10 / -	IK4LZH	+12 / -	2	✓ Closing observed
07-24 10:24	20m	- / -	PD1ADA	-16 / -	7	Partial capture
07-23 20:41	40m	-6 / -11	UB3DRL	-3 / 0	9	✓ Full exchange observed
07-23 20:32	40m	-7 / -	EA1SS	- / -8	6	Partial capture
07-23 20:29	40m	-12 / -	R5AV	-12 / -6	6	✓ Closing observed
07-23 20:26	40m	-11 / -12	F1PBZ	-8 / +4	5	✓ Full exchange observed
07-23 20:26	40m	-11 / -9	RN6MA	-1 / 0	4	✓ Full exchange observed
07-23 20:19	40m	-11 / -	M7CYY	- / -10	3	Partial capture
07-23 20:17	40m	-10 / -	G3YSK	- / -3	3	Partial capture
07-23 20:13	40m	-5 / -	R9WH	- / -7	5	✓ Closing fragment
07-23 20:06	40m	-14 / -	JG3TRB	- / -	2	Partial capture
07-23 19:58	40m	-15 / -	M7CYY	- / -8	4	Partial capture
07-23 19:55	40m	-10 / -9	RC6OD	-12 / -	4	✓ Closing observed
07-23 19:51	40m	-12 / -	SP5CJY	- / -	2	✓ Closing fragment
07-23 19:47	40m	-2 / -1	DL5DQZ	-3 / +4	6	✓ Full exchange observed
07-23 19:47	40m	-5 / -12	YO9HP	+2 / -13	5	✓ Full exchange observed
07-23 19:45	40m	-12 / -	UW5KW	- / -4	5	✓ Closing fragment
07-23 19:43	40m	-6 / -	DH1KJ	- / -3	3	✓ Closing fragment
07-23 18:57	20m	- / -6	CS8ABF	-10 / -	2	Partial capture
07-23 15:21	20m	- / -	EC3A	-17 / -	2	Partial capture
07-22 18:32	20m	- / -18	IU4TQQ	-12 / -	2	Partial capture
07-22 18:23	20m	-14 / -	IN3BFW	-16 / -	2	Partial capture
07-22 18:19	20m	-7 / -	7Z1BM	-12 / -	2	✓ Closing observed
07-22 18:06	20m	-12 / -	F1PPH	- / -	3	Partial capture
07-22 17:59	20m	-10 / -	EA2BHE	- / -5	2	Partial capture
07-22 17:56	20m	-11 / -	UA4FEN	- / +2	2	✓ Closing fragment
07-22 17:46	20m	-18 / -	US3EW	- / -2	4	Partial capture
07-22 17:42	20m	-19 / -16	7Z1BH	-18 / -11	4	Partial capture
07-22 17:28	20m	-15 / -	G4MHJ	- / -	2	Partial capture
07-22 17:16	20m	- / -11	9K2MP	-14 / -	3	✓ Closing fragment
07-22 12:39	10m	-14 / -	F5SAZ	- / -13	3	Partial capture
07-22 07:26	40m	- / -	UT4PA	-8 / -	2	✓ Closing fragment
07-21 20:52	40m	-6 / -	YC2BUZ	- / -	8	Partial capture
07-21 20:51	40m	-10 / -	IS0JHW	- / -	2	Partial capture
07-21 20:48	40m	-14 / -	EA7HHK	- / -15	3	✓ Closing fragment
07-21 20:45	40m	- / +3	DK7ZT	-10 / -	6	Partial capture
07-21 20:40	40m	-10 / -	UB3DKH	- / -	2	Partial capture
07-21 20:38	40m	-18 / -	<...>	- / -	2	Partial capture
07-21 20:35	40m	- / -11	DK4RH	-10 / -	2	✓ Closing fragment
07-21 20:23	40m	-3 / -	JA4FKX	- / -	3	Partial capture
07-21 20:06	40m	- / +6	DK7ZT	-15 / -	4	Partial capture
07-21 20:05	40m	- / -5	UA3IAP	-7 / -	3	✓ Closing fragment
07-21 19:47	40m	-13 / -	F5OZC	- / -8	3	✓ Closing fragment
07-21 19:45	40m	-14 / -	R1BRT	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
121945  -6  611  OZ1CM DL5BTE JO72
122130 -16  819  TA4INO OZ1CM JO46 (x2)
122545 -13  759  IV3ABA OZ1CM JO46 (x3)
122945 -10  340  M6VHR OZ1CM R-19
123415 -15 1145  Z62NS OZ1CM JO46 (x3)
123815  -9  643  M3TZX OZ1CM JO46
123945 -13 1146  Z62NS OZ1CM JO46
124715 -12  979  JO1WXO OZ1CM JO46
124945 -13  979  JH7RTQ OZ1CM JO46
125045 -16  980  JA4LXY OZ1CM JO46

40m

UTC    dB Audio  Message
203315  -3  820  EA1SS OZ1CM -08 (x5)
204145 -11  289  UB3DRL OZ1CM JO46
204200  +2  288  OZ1CM UB3DRL -11 (x2)
204245  -9  288  UB3DRL OZ1CM JO46
204300  -4  288  OZ1CM UB3DRL -09
204315  -4  288  UB3DRL OZ1CM JO46 (x2)
204400  -6  288  OZ1CM UB3DRL RR73
204415  -4  288  UB3DRL OZ1CM 73
205230 -11  352  OZ1KZX OZ1CM JO46

10m

UTC    dB Audio  Message
123900 -16 1138  F5SAZ OZ1CM JO46 (x3)
190330 -16  939  OZ1CM PD2VE -01

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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