ND8D — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM79

Receiver-side FT8 activity involving ND8D, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-24 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 34 FT8 messages attributed to ND8D as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 80 m (24%) and 40 m (12%). Most decodes (82%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (71%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

80m · 8 40m · 4 20m · 22

First attributed message: 2026-06-24
Last attributed message: 2026-09-11 02:10 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 8 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -24 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 3.

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 ND8D in decoded directed-looking exchanges:

UT5ZC · Ukraine 6K5BXQ · Republic of Korea DL3MIB · Fed. Rep. of Germany PD0IFI · Netherlands R2DN · European Russia RA3FY · European Russia RU3SD · European Russia Z62NS · Republic of Kosovo SV9QWC · Crete OJ0YL · Market Reef 7X5CY · Algeria TA2LG · Asiatic Turkey

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 ND8D

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: EM79 · 11 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,775 km (approx.)
Last such locator decoded: 2026-09-04 01:53 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	ND8D S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 01:12	160m	- / -23	UT5ZC	+9 / -	2	✓ Closing fragment
09-11 02:12	80m	- / -12	ON1JP	-21 / -	3	Partial capture
09-11 02:10	80m	- / -	IZ2AMW	-10 / -	5	Partial capture
09-08 03:21	80m	- / -	DL2YCD	-11 / -	5	Partial capture
09-08 03:21	80m	- / -	DL3MIB	+10 / -	6	Partial capture
09-08 03:21	80m	- / -	YO9IAB	+10 / -	3	Partial capture
09-08 03:18	80m	- / -13	TA2LG	+6 / -	4	✓ Closing fragment
09-08 03:09	80m	- / -	DL2YCD	-2 / -	2	Partial capture
09-08 03:05	80m	- / -9	7X5CY	-5 / -	2	Partial capture
09-04 01:54	40m	- / -	PE1NPS	-6 / -	4	Partial capture
09-04 01:51	40m	-10 / -3	SV9QWC	-11 / -18	9	✓ Full exchange observed
08-28 11:59	20m	- / -23	PD1ADA	+6 / -	13	Partial capture
08-27 11:46	20m	- / -	GB4LD	-1 / -	3	Partial capture
08-27 11:38	20m	- / -	EI2JVB	-7 / -	3	Partial capture
08-26 11:56	20m	- / -	DK3NU	-18 / -	2	Partial capture
08-26 11:54	20m	- / -6	PD0IFI	+12 / -	5	✓ Closing fragment
08-26 11:53	20m	- / -	PD3PAM	-11 / -	7	Partial capture
08-26 11:46	20m	-20 / -	BG6QFO	- / -10	2	Partial capture
08-26 11:46	20m	- / -	GJ0KYZ	-6 / -	2	Partial capture
08-26 11:44	20m	-20 / -	6K5BXQ	- / -5	3	✓ Closing fragment
08-26 11:44	20m	- / -7	G5MJF	-22 / -	5	Partial capture
08-25 03:42	20m	-18 / -	RU3SD	- / +7	2	✓ Closing fragment
08-25 03:40	20m	-19 / -	RA3FY	- / +7	3	✓ Closing fragment
08-25 03:39	20m	-18 / -	XQ1KK	-4 / -9	2	Partial capture
08-25 03:38	20m	-16 / -13	DL3MIB	-2 / -14	5	✓ Full exchange observed
08-25 03:38	20m	- / -	UA6AFS	-13 / -	5	Partial capture
08-25 03:37	20m	-19 / -	R2DN	- / -8	2	✓ Closing fragment
08-25 03:31	20m	-16 / -	9H4CM	- / -	3	Partial capture
08-20 01:06	80m	-22 / -	OJ0YL	- / -	2	Partial capture
07-26 03:19	20m	-8 / -	Z62NS	- / +1	2	✓ Closing fragment
07-14 03:35	80m	- / -	DK5WL	+2 / -	2	Partial capture
07-09 03:54	20m	- / -	A71XX	-17 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
011230  +8 1802  ND8D UT5ZC -23 (x2)

80m

UTC    dB Audio  Message
032200 -17 1153  ND8D DL2YCD JO31 (x2)
032300 +14 1034  ND8D DL3MIB JN57
032300 -12 1153  ND8D DL2YCD JO31
032330 +10 1034  ND8D DL3MIB JN57 (x2)
021000 -10 1683  ND8D IZ2AMW JN45 (x2)
021045 -18 2403  WB8NXR ND8D -02
021100  -9 1683  ND8D IZ2AMW JN45 (x3)
021230 -24 1554  ND8D ON1JP -12 (x3)

40m

UTC    dB Audio  Message
015145 -14 1957  ND8D SV9QWC -03
015200 -12 1167  SV9QWC ND8D EM79
015215 -11 1957  ND8D SV9QWC -03
015230  -9 1167  SV9QWC ND8D EM79
015245  -7 1957  ND8D SV9QWC -03
015245  +6  657  ND8D G5TV IO93
015300  -9 1167  SV9QWC ND8D EM79
015315 -10 1957  ND8D SV9QWC -02
015330  -8 1167  SV9QWC ND8D R-18
015345 -13 1957  ND8D SV9QWC RR73
015415  -6 2512  ND8D PE1NPS JO22 (x4)

20m

UTC    dB Audio  Message
114730  -3 2762  ND8D GB4LD IN79
225745  -5 1522  RI1FJL ND8D EM79
115900  -4 2035  ND8D PD1ADA JO21 (x13)

60m

UTC    dB Audio  Message
014030 -10 1256  ND8D OJ0YL RR73

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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