N9ZL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM09

Receiver-side FT8 activity involving N9ZL, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-07-13.

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 86 FT8 messages attributed to N9ZL as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (97%), followed by 20 m (3%). 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 -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 83 20m · 3

First attributed message: 2026-07-06
Last attributed message: 2026-07-13 02:28 UTC

Observed FT8 message patterns

Attributed sample: 86 messages
Active dates: 4 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -19 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 48.

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 N9ZL in decoded directed-looking exchanges:

9J2FI · Zambia ×2 7Z1DS · Saudi Arabia E75C · Bosnia-Herzegovina OE5PEN · Austria OK1KM · Czech Republic OK1UK · Czech Republic 9A4ZM · Croatia OK1XV · Czech Republic OZ1LDO · Denmark 4Z5AV · Israel 9A5E · Croatia DH4JQ · 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 N9ZL

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: FM09 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,429 km (approx.)
Last such locator decoded: 2026-07-12 02:21 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	N9ZL S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-13 07:23	20m	- / -18	OK1KM	-7 / -	2	✓ Closing fragment
07-13 07:23	20m	- / -16	DG4YT	-18 / -	10	Partial capture
07-13 07:18	20m	- / -16	DG4YT	-21 / -	3	Partial capture
07-13 07:09	20m	- / -13	DG4YT	-22 / -	7	Partial capture
07-13 07:05	20m	- / -16	OE5PEN	+12 / -	2	✓ Closing fragment
07-13 06:45	20m	- / -16	OK1DBE	-14 / -	4	Partial capture
07-13 06:37	20m	- / -	F8NHF	-17 / -	5	Partial capture
07-13 06:32	20m	- / -11	ON8SGA	-9 / -	4	Partial capture
07-13 04:42	40m	- / -5	DL3OCF	-12 / -	2	Partial capture
07-13 04:31	40m	- / -11	9A4ZM	-4 / -	4	✓ Closing fragment
07-13 04:31	40m	- / -4	OK1XV	-10 / -	2	✓ Closing fragment
07-13 04:25	40m	- / -10	OZ1LDO	+2 / -	2	✓ Closing fragment
07-13 04:21	40m	- / -9	OZ1LDO	-4 / -	2	Partial capture
07-13 03:02	80m	- / -16	S58MU	+6 / -	4	Partial capture
07-13 02:28	80m	- / -	IU8SDA	+6 / -	2	Partial capture
07-12 02:20	80m	- / -	DL7ZF	-13 / -	3	Partial capture
07-12 02:20	80m	-1 / -12	IQ4JO	+10 / -	3	✓ Closing observed
07-12 02:18	80m	- / -	IK6GTF	-1 / -	3	Partial capture
07-12 02:14	80m	- / -	IK6GTF	-2 / -	5	Partial capture
07-12 02:13	80m	-8 / -6	SV1QEW	+2 / -15	5	✓ Full exchange observed
07-12 02:13	80m	-4 / -	VA2KK	- / -23	2	Partial capture
07-12 02:10	80m	+4 / -	IQ4JO	- / -12	2	Partial capture
07-12 02:10	80m	- / -	G8OO	-16 / -	3	Partial capture
07-12 02:07	80m	-5 / -13	TA2FE	-3 / -20	3	Partial capture
07-12 02:04	80m	0 / -	HI7S	- / -14	2	✓ Closing fragment
07-12 02:02	80m	- / -	DL7ZF	-10 / -	5	Partial capture
07-12 02:02	80m	0 / -19	DO9BAU	+6 / -15	8	✓ Full exchange observed
07-12 02:01	80m	0 / -17	DH4JQ	+5 / -8	9	✓ Full exchange observed
07-12 02:00	80m	0 / -	IQ4JO	- / -14	2	Partial capture
07-12 02:00	80m	- / -	G8OO	-16 / -	7	Partial capture
07-12 01:59	80m	- / -	DG5PW	-10 / -	3	Partial capture
07-12 01:49	80m	- / -	DO9BAU	+8 / -	11	Partial capture
07-12 01:48	80m	-1 / -3	4Z5AV	-6 / -9	4	✓ Full exchange observed
07-12 01:48	80m	- / -	DH4JQ	+6 / -	4	Partial capture
07-12 01:42	80m	- / -	DH4JQ	+12 / -	4	Partial capture
07-12 01:40	80m	- / -	DA6FS	-18 / -	2	Partial capture
07-12 01:37	80m	-10 / -	N8OQ	- / +3	4	✓ Closing fragment
07-12 01:32	80m	- / -	DO9BAU	+3 / -	12	Partial capture
07-12 01:32	80m	-10 / -14	YU1BV	+16 / -	4	✓ Closing observed
07-12 01:32	80m	- / -	DH4JQ	+5 / -	7	Partial capture
07-12 01:31	80m	- / -	DA6TT	+11 / -	4	Partial capture
07-12 01:31	80m	- / +5	LZ01MIKU	+8 / -	2	✓ Closing fragment
07-12 01:31	80m	-4 / -	<...>	- / -11	2	Partial capture
07-12 01:19	80m	- / -	DO9BAU	+6 / -	12	Partial capture
07-12 01:18	80m	-3 / -	9J2FI	- / -18	2	✓ Closing fragment
07-12 00:42	40m	- / -	DJ0MAB	-5 / -	3	Partial capture
07-12 00:38	40m	- / -	DJ0MAB	+3 / -	2	Partial capture
07-12 00:38	40m	- / -	RX3DQL	-19 / -	3	Partial capture
07-12 00:23	40m	- / -	DJ0MAB	-3 / -	2	Partial capture
07-12 00:23	40m	- / +1	DK7ZT	-14 / -	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
071915 -20 1854  N9ZL DG4YT R-16 (x3)
072330  -8  432  N9ZL OK1KM R-18 (x2)
072415 -18 1854  N9ZL DG4YT R-16
072430 -10  377  N9ZL F5IXN JN23
072445 -24 1854  N9ZL DG4YT R-16 (x8)

40m

UTC    dB Audio  Message
004330  -6  342  N9ZL DJ0MAB JN49
005300 -24 1769  N9ZL SV7NIN KN11
042100  -6  346  N9ZL OZ1LDO R-09 (x4)
043115  -9 1391  N9ZL OK1XV R-04 (x2)
043145  -8  335  N9ZL 9A4ZM JN86 (x4)
043415 -16  236  N9ZL DL3OCF -03 (x3)

80m

UTC    dB Audio  Message
022030 -12 2759  N9ZL HB9MZI JN46
022030 -14  404  N9ZL DL7ZF JO62
022045  -1 2758  IQ4JO N9ZL RR73
022100 +10 2563  N9ZL IQ4JO 73
022100 -15  403  N9ZL DL7ZF JO62
022115  -1 2758  CQ DX N9ZL FM09
022130 -10  403  N9ZL DL7ZF JO62
022145  -4 2758  CQ DX N9ZL FM09
022830 -22  461  S58MU N9ZL -19
022845  +7 1774  N9ZL IU8SDA JN71 (x2)
030200 +15 1183  N9ZL S58MU R-16 (x4)

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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