N8DH — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EN81

Receiver-side FT8 activity involving N8DH, decoded by SO8OO in southeastern Poland. 281 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-15.

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 281 FT8 messages attributed to N8DH as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 80 m (2%) and 40 m (0%). Most decodes (95%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

281

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 6 40m · 1 20m · 274

First attributed message: 2026-06-09
Last attributed message: 2026-10-15 04:50 UTC

Observed FT8 message patterns

Attributed sample: 281 messages
Active dates: 21 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 68, moderate (-15 to -9 dB) 121, strong (≥ -8 dB) 92.

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 N8DH in decoded directed-looking exchanges:

CU2JX · Azores DL2TT · Fed. Rep. of Germany DL3MIB · Fed. Rep. of Germany F6DZU · France G1YEF · England HI8CQ · Dominican Republic KI6Q · United States LZ1EV · Bulgaria M8KKH · England MI0JZZ · Northern Ireland MW3FLI · Wales ND9M · United States

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 N8DH

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: EN81 · 193 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,496 km (approx.)
Last such locator decoded: 2026-10-06 01:50 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	N8DH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 07:31	60m	- / -	G6PWS	-17 / -	9	Partial capture
10-22 07:01	60m	- / -	HB9ACA	-14 / -	2	Partial capture
10-22 06:38	60m	- / -	EA1IOK	-18 / -	2	Partial capture
10-22 06:37	60m	- / -16	IW4DQY	+6 / -	2	✓ Closing fragment
10-22 06:35	60m	- / -	EA7ALL	-11 / -	5	Partial capture
10-22 06:28	60m	- / -	EA7ALL	-10 / -	2	Partial capture
10-21 06:39	80m	- / -18	DK7ZT	+6 / -	5	Partial capture
10-21 06:35	80m	- / -	F4EGM	-4 / -	4	Partial capture
10-21 06:31	80m	- / -3	EA1DR	-8 / -	2	Partial capture
10-19 07:05	60m	- / -	DJ4LK	-6 / -	3	Partial capture
10-19 06:58	60m	- / -8	EI4KF	-8 / -	2	Partial capture
10-19 06:57	60m	- / -	F5BEG	-10 / -	2	✓ Closing fragment
10-19 06:19	80m	- / -20	GM6URC	-19 / -	2	Partial capture
10-17 06:24	80m	- / -16	EA1DR	-10 / -	2	Partial capture
10-17 06:10	80m	- / -15	EA1DR	-7 / -	11	Partial capture
10-15 05:29	80m	- / -	DL1ZU	+4 / -	2	Partial capture
10-15 05:28	80m	- / -	G0BLB	0 / -	2	Partial capture
10-15 05:26	80m	- / -	F5PBG	-6 / -	6	Partial capture
10-15 05:25	80m	- / -	F4GUK	-6 / -	2	Partial capture
10-15 05:25	80m	- / -	SP1MGM	+4 / -	4	Partial capture
10-15 05:20	80m	- / -	DL1ZU	-6 / -	2	Partial capture
10-15 05:20	80m	- / -	G0BLB	-4 / -	2	Partial capture
10-15 05:10	80m	- / -	F5PBG	0 / -	2	Partial capture
10-15 05:07	80m	- / -15	F4FSY	-8 / -	2	Partial capture
10-15 04:58	80m	- / -	ON7HM	0 / -	2	Partial capture
10-15 04:53	80m	- / -17	DL3OCF	+6 / -	10	Partial capture
10-15 04:53	80m	- / -	SP1TJ	+7 / -	3	Partial capture
10-15 04:52	80m	- / -	ON7HM	-4 / -	3	Partial capture
10-15 04:47	80m	- / -	DL3OCF	+4 / -	2	Partial capture
10-15 04:47	80m	- / -18	DL8TV	0 / -	2	Partial capture
10-15 04:47	80m	- / -	F5PBG	-16 / -	2	Partial capture
10-15 04:46	80m	- / -	OK1PI	+26 / -	3	Partial capture
10-15 04:43	80m	- / -	SP1TJ	-2 / -	4	Partial capture
10-15 04:41	80m	- / -18	DK7ZT	+10 / -	5	Partial capture
10-15 04:29	80m	- / -19	DK7ZT	+5 / -	5	Partial capture
10-15 04:29	80m	- / -18	DO1ID	+1 / -	9	Partial capture
10-14 05:17	40m	- / -	OE9DAI	+6 / -	8	Partial capture
10-10 06:37	40m	- / -	F8MRQ	-10 / -	2	Partial capture
10-10 06:35	40m	- / -	F5NBU	+4 / -	4	Partial capture
10-06 02:34	80m	- / -	EA1IOK	-1 / -	5	Partial capture
10-06 01:44	80m	- / -	UX5UO	+8 / -	2	Partial capture
10-06 01:43	80m	- / +9	N3F	-16 / -	2	✓ Closing fragment
10-04 05:25	80m	- / -	ON7GB	+12 / -	2	Partial capture
10-04 03:02	80m	- / -	9A5E	+4 / -	5	Partial capture
10-04 03:01	80m	- / -	DO4DXA	+10 / -	4	Partial capture
10-04 03:00	80m	- / -5	XE2X	-16 / -	2	✓ Closing fragment
10-04 02:41	80m	- / -	UX5UO	+16 / -	3	Partial capture
10-04 02:36	80m	- / -	SV8JE	-16 / -	2	Partial capture
10-04 02:08	80m	- / -15	GM6URC	-15 / -	2	Partial capture
10-04 01:46	80m	- / -	DO4DXA	+10 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
063800 -14  876  N8DH EA7ALL IM88 (x2)
063830 -18 1080  N8DH EA1IOK IN62 (x2)
070145 -14 1932  N8DH HB9ACA JN36 (x2)
073115 -16 1363  N8DH G6PWS IO91 (x9)

80m

UTC    dB Audio  Message
063145  -9 1797  N8DH EA1DR -03 (x2)
063245  +5  507  N8DH PA3FPQ JO32
063245  -3 1004  N8DH F4EGM JN29 (x5)
063915  +9  826  N8DH DK7ZT -18 (x5)
070515 -15  928  N8DH F4EGM JN29
075415 -18 1540  N8DH G0PQO -23

40m

UTC    dB Audio  Message
073215 -14 1038  N8DH F5PBG IN78
063530  +5 2282  N8DH F5NBU JN28 (x3)
063700 -11 1781  N8DH F8MRQ JN17
063700  +4 2283  N8DH F5NBU JN28
063730 -10 2282  N8DH F8MRQ JN17
051715  +8 1969  N8DH OE9DAI JN47 (x8)

10m

UTC    dB Audio  Message
152900 -21 1824  N8DH EA5KB -20

20m

UTC    dB Audio  Message
235230 -14 2350  KI6Q N8DH 73
003830 -13 2319  ND9M N8DH EN81
003845 -14 2318  N8DH ND9M +08 (x2)
145900  -9 1357  N8DH F5PBG IN78 (x4)
195715 -13 2004  N8DH YO3RU -03 (x4)
204400 -10 2210  N8DH DL2TT -13 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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