NZ3M — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN10

Receiver-side FT8 activity involving NZ3M, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-09-11.

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 72 FT8 messages attributed to NZ3M as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 80 m (22%) and 20 m (22%). Several six-hour UTC windows tied for the largest share (100%), 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

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 16 40m · 40 20m · 16

First attributed message: 2026-06-16
Last attributed message: 2026-09-11 23:41 UTC

Observed FT8 message patterns

Attributed sample: 72 messages
Active dates: 10 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 26.

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 NZ3M in decoded directed-looking exchanges:

GM6URC · Scotland ×2 9K2GR · Kuwait 9J2FI · Zambia A71UN · Qatar DJ0MAB · Fed. Rep. of Germany ER3UA · Moldova F5PBG · France F5RRS · France F6FDY · France HB9HSJ · Switzerland HZ1TT · Saudi Arabia JY5IB · Jordan

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 NZ3M

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: FN10 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,230 km (approx.)
Last such locator decoded: 2026-09-11 23:40 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	NZ3M S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 23:41	40m	- / -	EB3JT	-10 / -	7	Partial capture
09-11 23:40	40m	-12 / -12	YL2KF	-8 / -25	4	✓ Full exchange observed
09-11 23:37	40m	-7 / -5	F5PBG	-1 / -	4	✓ Closing observed
09-11 23:35	40m	-12 / -10	HZ1TT	-6 / -17	7	✓ Full exchange observed
09-03 01:28	80m	-15 / -	PY5HOT	- / -16	3	Partial capture
09-03 00:40	80m	- / -	F5RRS	+3 / -	4	Partial capture
09-03 00:37	80m	-9 / -	YV6BXN	- / -18	3	✓ Closing fragment
09-02 00:55	80m	-16 / -	RI1FJL	- / -	3	Partial capture
09-01 03:18	80m	-18 / -19	F5NNN	-15 / -17	7	Partial capture
09-01 03:18	80m	- / -	SP9YGD	+11 / -	3	Partial capture
09-01 03:17	80m	- / -19	US2YW	+8 / -	2	Partial capture
09-01 03:17	80m	- / -	SP7ENW	-5 / -	2	Partial capture
09-01 03:04	80m	- / -	SQ9MSE	+8 / -	10	Partial capture
09-01 03:02	80m	-16 / +1	HB9CXZ	+5 / -10	7	✓ Full exchange observed
09-01 03:01	80m	- / -	LY2EW	0 / -	2	Partial capture
09-01 03:00	80m	- / -	EA5HM	-3 / -	3	Partial capture
09-01 03:00	80m	- / -12	DK5WL	+6 / -	3	✓ Closing fragment
09-01 03:00	80m	- / -11	DL8TV	+5 / -	6	✓ Closing fragment
09-01 03:00	80m	- / -	SP9YGD	+16 / -	4	Partial capture
09-01 02:59	80m	-17 / -12	GM6URC	-13 / -18	5	✓ Full exchange observed
08-24 02:36	40m	- / 0	KF9UG	-11 / -	4	Partial capture
08-24 01:53	40m	-1 / -7	YO6LM	-8 / -	4	✓ Closing observed
08-24 01:53	40m	+2 / -20	F5RRS	-13 / -	3	✓ Closing observed
08-23 02:50	40m	- / -	RN6HK	-3 / -	3	Partial capture
08-23 02:48	40m	-14 / -11	ER3UA	-2 / -16	6	✓ Full exchange observed
08-23 01:49	40m	- / -	9A4ZM	-10 / -	2	Partial capture
08-23 01:47	40m	-20 / -9	DJ0MAB	-14 / -16	4	✓ Full exchange observed
08-23 01:45	40m	-21 / -	9J2FI	- / -18	4	✓ Closing fragment
08-23 01:24	40m	-14 / -19	4X1UF	-14 / -18	4	Partial capture
08-23 01:20	40m	- / -11	UA3GDJ	-4 / -	3	✓ Closing fragment
08-23 01:19	40m	- / -10	HB9HSJ	+6 / -	2	✓ Closing fragment
08-22 00:37	40m	-17 / -	VU2SW	- / -	2	Partial capture
08-22 00:14	40m	-7 / -	OS4K	- / -21	3	✓ Closing fragment
08-22 00:12	40m	-9 / -	F6FDY	-3 / -24	3	✓ Closing observed
08-22 00:11	40m	-11 / -	HC1BG	- / -30	2	Partial capture
08-21 23:43	40m	- / -14	EW8AAC	-12 / -	5	Partial capture
08-21 02:34	40m	-10 / -16	JY5IB	-14 / -22	6	✓ Full exchange observed
08-21 02:29	40m	-10 / -	JY5IB	- / -23	3	Partial capture
08-20 21:22	20m	- / -	M0SLI	-10 / -	3	Partial capture
08-20 21:18	20m	- / -10	EA5IHI	-3 / -	17	Partial capture
08-20 21:08	20m	- / -	HB9TIH	-7 / -	7	Partial capture
08-20 21:07	20m	- / -13	9K2GR	-1 / -	3	✓ Closing fragment
08-02 13:46	20m	- / -	PD1ADA	-15 / -	6	Partial capture
08-01 00:36	40m	- / -	F5PBG	-7 / -	5	Partial capture
08-01 00:33	40m	- / -17	F6EQZ	-5 / -	3	Partial capture
08-01 00:33	40m	- / -8	A71UN	-12 / -	2	✓ Closing fragment
07-08 02:38	40m	- / -	US0QV	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
212130  -5 2693  NZ3M EA5IHI -10 (x2)
212230 -11  687  NZ3M M0SLI JO02
212230  +1 2693  NZ3M EA5IHI -10
212300 -10  687  NZ3M M0SLI JO02
212300  +1 2693  NZ3M EA5IHI -10
212330  -8  687  NZ3M M0SLI JO02
212330  -2 2693  NZ3M EA5IHI -10 (x7)
124600 -22 1643  NZ3M R7DX KN84

40m

UTC    dB Audio  Message
233800  +1 2565  NZ3M F5PBG R-05
233815  -7 2565  F5PBG NZ3M RR73
233830  -1 2565  NZ3M F5PBG 73
233900  -4 2565  NZ3M UX1VT KN68
234000 -11 2564  YL2KF NZ3M FN10
234045  -7  433  NZ3M YL2KF -12
234100 -14  827  YL2KF NZ3M R-25
234115  -8  432  NZ3M YL2KF RR73
234145  -7  826  NZ3M EB3JT JN01 (x7)

80m

UTC    dB Audio  Message
032100 -18 2586  F5NNN NZ3M -17
032145 -19 1105  NZ3M F5NNN R-19
005515 -17 2645  RI1FJL NZ3M FN10 (x3)
003745  -7 2483  YV6BXN NZ3M FN10 (x3)
004030  -4  496  NZ3M F5RRS JN36 (x4)
012815 -15 2503  PY5HOT NZ3M FN10 (x3)

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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