OK7CM — 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: Czech Republic Most frequent locator attributed to this token: JO70

Receiver-side FT8 activity involving OK7CM, decoded by SO8OO in southeastern Poland. 181 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-30.

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 181 FT8 messages attributed to OK7CM as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (18%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -3 dB.

Overview

181

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 4 40m · 33 20m · 144

First attributed message: 2026-06-13
Last attributed message: 2026-10-30 07:08 UTC

Observed FT8 message patterns

Attributed sample: 181 messages
Active dates: 14 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -11 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 50, strong (≥ -8 dB) 130.

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 OK7CM in decoded directed-looking exchanges:

N2RHY · United States ×2 WA9WUD · United States ×2 LZ2VQ · Bulgaria R6DWD · European Russia AC4SP · United States HK3W · Colombia K0BFG · United States K0LLT · United States K2YF · United States K8OM · United States K9DLO · United States K9STL · 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 OK7CM

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: JO70 · 89 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 487 km (approx.)
Last such locator decoded: 2026-10-30 07:08 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	OK7CM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 07:07	40m	+4 / -	K7ACZ	- / -	4	Partial capture
10-27 05:41	40m	- / -	UR9QQ	-14 / -	2	Partial capture
10-27 05:29	80m	- / -	DO9BAU	+5 / -	12	Partial capture
10-27 05:28	80m	+9 / -7	2W0YOX	+8 / +4	5	✓ Full exchange observed
10-27 05:13	40m	- / -	UR9QQ	-7 / -	3	Partial capture
10-27 05:00	40m	- / -	UR9QQ	-3 / -	16	Partial capture
10-26 06:03	40m	-1 / -	CT9/DF7EE	- / +7	2	Partial capture
10-26 06:02	40m	0 / -	W1AW/KL7	- / -	2	Partial capture
10-26 05:59	40m	+2 / -	ON8WR	-11 / -9	4	✓ Closing observed
10-26 05:56	40m	+1 / -	RD0L/P	- / -18	6	Partial capture
10-26 05:51	40m	-2 / -	W5RBD	- / -	2	Partial capture
08-30 21:50	20m	-5 / -	KD6KHK	- / -	2	Partial capture
08-30 21:47	20m	-4 / -	W2RWC	- / -	2	Partial capture
08-29 21:12	20m	- / -	HK3W	-10 / -	2	✓ Closing fragment
08-29 21:10	20m	- / -9	WA0DYJ	-9 / -	3	✓ Closing fragment
08-21 23:28	20m	+3 / -	WA9WUD	- / +6	5	✓ Closing fragment
08-21 23:27	20m	+10 / -	K2YF	- / -14	2	✓ Closing fragment
08-21 23:26	20m	+9 / -	KE2IUB	- / -14	3	✓ Closing fragment
08-21 23:23	20m	+4 / -	W2TDS	- / -13	2	✓ Closing fragment
08-21 23:18	20m	+2 / -	KQ4MHD	- / -25	2	✓ Closing fragment
08-21 23:16	20m	+10 / -	K0LLT	- / -1	2	✓ Closing fragment
08-21 23:14	20m	+4 / -	W4KBW	- / -18	2	✓ Closing fragment
08-21 23:10	20m	-2 / -6	WY5I	+1 / +8	5	✓ Full exchange observed
08-21 23:08	20m	- / -	DL3MIB	+9 / -	7	Partial capture
08-21 23:07	20m	-1 / -	AC4SP	- / -11	3	✓ Closing fragment
08-21 22:55	20m	- / +7	K4DKW	0 / -	2	Partial capture
08-20 23:38	20m	+2 / -	W9DP	- / -13	2	✓ Closing fragment
08-20 23:34	20m	+5 / -	WG8T	- / -8	5	✓ Closing fragment
08-20 23:29	20m	-6 / -	W1DRC	- / -9	3	✓ Closing fragment
08-20 23:09	20m	- / -	SV5BYP	-4 / -	5	Partial capture
08-20 23:01	20m	- / -6	N8NN	-7 / -	3	✓ Closing fragment
08-20 22:59	20m	- / -19	W8DPK	-2 / -	3	✓ Closing fragment
08-20 22:50	20m	- / +3	W0JMP	-5 / -	3	✓ Closing fragment
08-20 22:48	20m	- / -	N4ILE	-7 / -	2	✓ Closing fragment
08-20 22:41	20m	- / -8	KF1G	-11 / -	3	Partial capture
08-20 22:31	20m	- / -14	KQ4BMS	-4 / -	4	✓ Closing fragment
08-20 22:23	20m	- / -	SV5BYP	-8 / -	4	Partial capture
08-20 22:20	20m	- / -3	WA6DKZ	-6 / -	3	✓ Closing fragment
08-18 08:28	10m	- / -1	R6DWD	-15 / -	2	✓ Closing fragment
08-18 08:22	10m	- / -2	LZ2VQ	+1 / -	3	✓ Closing fragment
08-16 23:30	20m	-8 / -	KO4IOL	- / -11	2	✓ Closing fragment
08-16 23:28	20m	-8 / -	W9ZPL	- / -5	2	✓ Closing fragment
08-16 23:26	20m	-6 / -	N2RHY	- / -7	5	✓ Closing fragment
08-16 23:19	20m	-3 / -	NH6L	- / -2	2	✓ Closing fragment
08-16 23:18	20m	-8 / -	K0LLT	- / -5	2	Partial capture
08-16 23:17	20m	-14 / -	WX0E	- / +6	2	✓ Closing fragment
08-16 05:55	20m	- / -	PD0RCQ	-14 / -	2	Partial capture
08-14 19:43	20m	- / -2	W3FOX	-22 / -	2	✓ Closing fragment
08-10 23:01	20m	-10 / -	AB4KK	- / +5	3	Partial capture
08-10 22:47	20m	-12 / -	WA0MQQ	- / +1	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
050730  +1 2869  OK7CM UR9QQ KN77 (x7)
051800  -3  337  OK7CM RR73; OK1MAT <...> +00
054130 -13 2006  OK7CM UR9QQ KN77 (x2)
060515  -3  283  K8KWT OK7CM JO70
070700  +1  292  K7ACZ OK7CM JO70 (x4)

80m

UTC    dB Audio  Message
052900 +10 3005  OK7CM 2W0YOX RR73
052915 +13 2548  2W0YOX OK7CM 73
052930  +4 2502  OK7CM DO9BAU JO62 (x2)
053015 +10  471  PA/DK4DAX OK7CM JO70
053030  +2 2502  OK7CM DO9BAU JO62 (x10)

10m

UTC    dB Audio  Message
082230  +4 2835  OK7CM LZ2VQ KN23 (x3)
082830 -13 2373  OK7CM R6DWD -01 (x2)
140530  -9  556  OK7CM <...> -12
140600  -7  555  OK7CM RR73; IK3VBB <...> -14

20m

UTC    dB Audio  Message
233330  +1 2862  CQ USA OK7CM JO70 (x3)
074600  +0  730  OK7CM Z62NS -24
211045  -8 2765  OK7CM WA0DYJ FM18 (x3)
211215 -11 1313  OK7CM HK3W FJ34 (x2)
211815  -4 2806  OK7CM HK4LGH -15
213345 -13 2919  KA4ACE OK7CM R-11
214715  -3 2919  W2RWC OK7CM JO70 (x2)
215015  -8  676  KD6KHK OK7CM JO70 (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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