OZ3AT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO55

Receiver-side FT8 activity involving OZ3AT, decoded by SO8OO in southeastern Poland. 110 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-08-31.

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 110 FT8 messages attributed to OZ3AT as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (55%), followed by 40 m (25%) and 20 m (18%). Most decodes (64%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -5 dB.

Overview

110

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 61 40m · 27 20m · 20 10m · 2

First attributed message: 2026-06-20
Last attributed message: 2026-08-31 20:22 UTC

Observed FT8 message patterns

Attributed sample: 110 messages
Active dates: 11 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 72.

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 OZ3AT in decoded directed-looking exchanges:

LZ2VQ · Bulgaria ×2 EA5W · Spain F5RRS · France IZ8PPI · Italy OE9GWV · Austria PD0IFI · Netherlands RL3K · European Russia TF3AK · Iceland VJ6X · Australia VK6BAD · Australia DK8CX · Fed. Rep. of Germany DM2GM · 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 OZ3AT

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: JO55 · 64 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 953 km (approx.)
Last such locator decoded: 2026-08-31 20:22 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	OZ3AT S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 20:21	80m	-4 / -	RI1FJL	- / -	3	Partial capture
08-31 16:57	80m	-5 / -	SP2Y	- / -	3	Partial capture
08-30 20:30	80m	+8 / -	2W0YOX	- / -	2	Partial capture
08-29 21:16	80m	-1 / -5	EA5S	-11 / -6	5	✓ Full exchange observed
08-29 06:09	80m	-2 / -	DM2GM	-19 / -6	7	✓ Closing observed
08-29 06:09	80m	-4 / -	DO5PY	-18 / -6	6	✓ Closing observed
08-28 16:20	40m	+2 / 0	F5RRS	-5 / +7	6	✓ Full exchange observed
08-28 16:19	40m	+1 / -	TF3AK	- / -20	3	✓ Closing fragment
08-28 16:07	80m	-12 / -	<...>	- / -	2	Partial capture
08-27 22:33	80m	-13 / -	RI1FJL	- / -	10	Partial capture
08-24 21:43	40m	-2 / -	TN8GD	- / -	2	Partial capture
08-24 21:40	40m	0 / -8	EA5W	-11 / -7	12	✓ Full exchange observed
08-24 21:39	40m	0 / -	PD0IFI	0 / +9	9	✓ Closing observed
08-24 21:39	40m	-1 / -10	RL3K	-9 / -6	5	✓ Full exchange observed
08-24 21:36	40m	-4 / 0	LZ2VQ	0 / -	5	✓ Closing observed
08-24 21:36	40m	-5 / +4	OE9GWV	-6 / +4	6	✓ Full exchange observed
08-24 21:35	40m	-12 / -	VK6BAD	- / -14	2	✓ Closing fragment
08-24 21:14	40m	-9 / -	IZ8PPI	- / -3	2	✓ Closing fragment
08-24 21:11	40m	0 / -	VJ6X	- / -17	5	✓ Closing fragment
07-28 21:15	80m	+5 / -1	Z33F	+2 / -3	6	✓ Full exchange observed
07-28 20:48	80m	+8 / -3	UW5KW	+14 / -	7	✓ Full exchange observed
07-28 20:14	80m	+5 / -	IZ3ZUS	-19 / -24	3	✓ Closing observed
07-28 20:12	80m	+4 / -	DO2RG	-1 / +10	5	✓ Full exchange observed
07-28 20:11	80m	+5 / -	DK8CX	+6 / -	4	✓ Full exchange observed
07-28 20:06	80m	+1 / -11	SQ8V	+11 / -8	6	✓ Full exchange observed
07-28 20:06	80m	+6 / +10	DM3BR	-13 / -4	5	✓ Full exchange observed
07-28 19:48	80m	+12 / -	OZ6CM	+4 / -	2	✓ Closing observed
06-25 07:11	20m	-13 / -	3G0YM	- / -	6	Partial capture
06-25 07:01	20m	-13 / -	3G0YM	- / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
061245  -3 2656  DM2GM OZ3AT RR73
211500 -16 2656  DM2MAT OZ3AT JO55
211615  -6 2656  EA5S OZ3AT JO55 (x2)
211730  -8 2820  OZ3AT EA5S RR73
211745  +3 2656  EA5S OZ3AT 73
211830 -14 2820  OZ3AT EA5S -05
203015  +4  656  2W0YOX OZ3AT JO55 (x2)
165715  -3 2656  SP2Y OZ3AT JO55 (x3)
202145  -1 2157  RI1FJL OZ3AT JO55 (x3)

40m

UTC    dB Audio  Message
214400 -10  944  OZ3AT EA5W IM97
214415  +1 2193  EA5W OZ3AT -07
214430 -11  944  OZ3AT EA5W R-08
214445  +0 2193  EA5W OZ3AT RR73
214500  -8  944  OZ3AT EA5W 73
161415  -2 2183  VK1MA OZ3AT JO55
161930  -2 2183  TF3AK OZ3AT JO55 (x3)
162045  -5 1990  OZ3AT F5RRS JN36 (x2)
162130  +3 2183  F5RRS OZ3AT +07
162145  -6 1990  OZ3AT F5RRS R+00
162200  +0 2183  F5RRS OZ3AT RR73
162215  -5 1990  OZ3AT F5RRS 73

20m

UTC    dB Audio  Message
065930 -14  904  VK6GC OZ3AT JO55
070115 -14  904  3G0YM OZ3AT JO55 (x14)

10m

UTC    dB Audio  Message
180215  -6  824  3G0YM OZ3AT JO55
181500  +3  685  OZ3AT PD0R +35

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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