OK7MZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN89

Receiver-side FT8 activity involving OK7MZ, decoded by SO8OO in southeastern Poland. 581 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-01.

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 581 FT8 messages attributed to OK7MZ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 80 m (32%). Most decodes (85%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.1 dB.

Overview

581

Messages attributed

UTC dates decoded

Active 15-min windows

-9.1 dB

Estimated median S/N

Bands

80m · 185 40m · 396

First attributed message: 2026-06-13
Last attributed message: 2026-09-01 13:16 UTC

Observed FT8 message patterns

Attributed sample: 581 messages
Active dates: 6 UTC dates
Estimated median S/N: -9.1 dB
Estimated 10th-90th percentile: -18 to -1.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 99, moderate (-15 to -9 dB) 215, strong (≥ -8 dB) 267.

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 OK7MZ in decoded directed-looking exchanges:

HA1DSL · Hungary ×2 DA6HF · Fed. Rep. of Germany ×2 IK5EEA · Italy PD3LKN · Netherlands DL7UKM · Fed. Rep. of Germany DM2AUO · Fed. Rep. of Germany F1IQH · France OE8PIT · Austria OZ9FF · Denmark SP1JQJ · Poland SP5EWX · Poland SP7EL · Poland

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 OK7MZ

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: JN89 · 331 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 348 km (approx.)
Last such locator decoded: 2026-09-01 13:16 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	OK7MZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-01 13:16	40m	-18 / -	DH8KAM	- / -	2	Partial capture
09-01 13:07	40m	-16 / -3	SP5EWX	-3 / -	7	✓ Full exchange observed
09-01 13:05	40m	-14 / -	IK0XBU/P	- / -6	2	Partial capture
09-01 13:04	40m	-14 / -1	SP1JQJ	-1 / +4	5	✓ Full exchange observed
09-01 12:56	40m	-12 / 0	SP3DVO	-12 / -3	7	Partial capture
09-01 12:56	40m	-12 / -	SQ100PKP	- / -	2	Partial capture
09-01 12:51	40m	- / -16	US5WAN	-18 / -	2	✓ Closing fragment
09-01 12:47	40m	-13 / +7	SP7EL	-10 / -	4	✓ Closing observed
09-01 12:43	40m	-13 / +7	DL7UKM	-8 / -	6	✓ Closing observed
09-01 12:35	40m	-13 / -	DM1MT	- / -	3	Partial capture
09-01 12:33	40m	-12 / -	DL7UKM	-4 / -	6	Partial capture
09-01 12:31	40m	-11 / -	F1IQH	- / -11	2	✓ Closing fragment
09-01 12:28	40m	-14 / -5	SQ7BCB	-4 / -	5	✓ Full exchange observed
09-01 12:26	40m	-14 / -7	DM2AUO	-2 / -	5	✓ Full exchange observed
09-01 12:24	40m	-12 / 0	9A5MP	-22 / -13	3	Partial capture
09-01 12:17	40m	-16 / -20	US5WAN	-22 / -7	7	Partial capture
09-01 12:07	40m	-20 / -	OE8PIT	-24 / -6	4	✓ Closing observed
08-21 12:25	20m	- / -23	GJ0KYZ	+10 / -	3	Partial capture
08-21 12:25	20m	- / -	PD4RJ	-10 / -	2	Partial capture
08-21 12:17	20m	- / -18	PD3LKN	-11 / -	2	✓ Closing fragment
08-21 12:11	40m	-22 / -	<...>	- / -	3	Partial capture
08-21 12:07	40m	-22 / -	HA3GO	- / +4	2	Partial capture
08-21 11:41	40m	-22 / -7	SQ9LGF	-4 / -	5	✓ Closing observed
08-20 20:57	80m	-12 / -	PE2JMR	- / -	2	Partial capture
08-20 20:54	80m	-4 / -	TC3CT	- / -	5	Partial capture
08-20 20:52	80m	-4 / -	EW8AAC	- / -	3	Partial capture
08-20 20:51	80m	-4 / -13	RA3GZ	0 / -3	5	✓ Full exchange observed
08-20 20:46	80m	-8 / -10	DA6HF	-11 / -4	9	✓ Full exchange observed
08-20 20:42	80m	-8 / +4	E74C	-1 / -1	10	✓ Full exchange observed
08-20 20:40	80m	-9 / -9	DM2HEY	-1 / 0	4	✓ Full exchange observed
08-20 20:37	80m	-9 / -7	DD7EE	-1 / +5	5	✓ Full exchange observed
08-20 20:36	80m	- / -5	DK0ACI	-9 / -	3	Partial capture
08-20 20:32	80m	- / -19	DK0ACI	-10 / -	4	Partial capture
08-20 20:27	80m	- / -9	DK0ACI	-9 / -	2	Partial capture
08-20 20:23	80m	-5 / -11	DG7FBB	-15 / -6	8	✓ Full exchange observed
08-20 20:21	80m	-8 / -	F4MUN	-11 / -5	5	✓ Full exchange observed
08-20 20:16	80m	-4 / -13	SM3NRY	-6 / -12	5	✓ Full exchange observed
08-20 20:15	80m	0 / -6	DG4MCB	-2 / 0	5	✓ Full exchange observed
08-20 20:13	80m	-8 / -8	OL900CO	-11 / -6	2	Partial capture
08-20 20:12	80m	-12 / -13	RA6FYL	-8 / -11	8	✓ Full exchange observed
08-20 20:08	80m	-18 / 0	DK1MCS	-3 / +1	6	✓ Full exchange observed
08-20 20:07	80m	-9 / -9	IK2DZN	-5 / -13	6	Partial capture
08-20 20:01	80m	-10 / -20	DL1HDL	+2 / +3	10	✓ Full exchange observed
08-20 20:00	80m	- / -	DO5PY	-12 / -	3	Partial capture
08-20 19:55	80m	-4 / +7	SP2BBQ	+7 / -14	10	✓ Full exchange observed
08-20 19:54	80m	- / -	DK0ACI	-8 / -	4	Partial capture
08-20 19:42	80m	-6 / -10	YT1DDL	-3 / -1	5	✓ Full exchange observed
08-20 19:40	80m	- / -	DK0ACI	-9 / -	12	Partial capture
08-20 19:40	80m	-12 / -16	SV9MBH	-12 / -13	4	✓ Full exchange observed
08-20 19:28	80m	-8 / -	OE3BHM	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
130430 -13 1347  SP1JQJ OK7MZ +04
130445  -3 2408  OK7MZ SP1JQJ R-01
130500 -14 1347  SP1JQJ OK7MZ RR73
130515  -3 2408  OK7MZ SP1JQJ 73
130530 -15 1347  IK0XBU/P OK7MZ -06 (x2)
130730 -14 1347  SP5EWX OK7MZ JN89 (x4)
131015  -1 2057  OK7MZ SP5EWX R-03 (x3)
131600 -18 1370  DH8KAM OK7MZ JN89 (x2)

20m

UTC    dB Audio  Message
113400  -9 2280  OK7MZ YO1BRANCUSI -15
113430  -3 2280  OK7MZ RR73; BG5BNW <...> -20
101915  -4 1079  OK7MZ IK5EEA -10 (x2)
104215 -24 1755  OK7MZ F4HSB JN37 (x4)
121715 -12 1387  OK7MZ PD3LKN R-18 (x2)
122515  -8 1421  OK7MZ PD4RJ JO33
122515 +11 2228  OK7MZ GJ0KYZ -23 (x2)
122615 -12 1420  OK7MZ PD4RJ JO33
122615  +9 2228  OK7MZ GJ0KYZ -23

80m

UTC    dB Audio  Message
205100  -5 1588  RA3GZ OK7MZ JN89
205115  +0 1748  OK7MZ RA3GZ -13
205130  +2 1587  RA3GZ OK7MZ R-03
205145  +1 1748  OK7MZ RA3GZ RR73
205200 -10 1587  RA3GZ OK7MZ 73
205245  -5 1588  EW8AAC OK7MZ JN89 (x3)
205445  -2 1587  TC3CT OK7MZ JN89 (x5)
205745 -16 1588  PE2JMR OK7MZ JN89 (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.

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