N4TD — 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: EM75

Receiver-side FT8 activity involving N4TD, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-11-05.

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 42 FT8 messages attributed to N4TD as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (62%), followed by 80 m (21%) and 20 m (17%). Several six-hour UTC windows tied for the largest share (83%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (90%); the estimated median was -20 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

80m · 9 40m · 26 20m · 7

First attributed message: 2026-08-28
Last attributed message: 2026-11-05 02:36 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 7 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -22 to -16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 N4TD in decoded directed-looking exchanges:

PI4DX · Netherlands ×2 SV5BYP · Dodecanese ×2 CT7BRV · Portugal ×2 HI3A · Dominican Republic HK3MS · Colombia ON1DGN · Belgium RT2F · Kaliningrad YO9HP · Romania YY4GPM · Venezuela 9A5E · Croatia KK5JY · United States OK1UOZ · Czech Republic

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 N4TD

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: EM75 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,113 km (approx.)
Last such locator decoded: 2026-11-05 02:36 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	N4TD S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 02:36	80m	-21 / -6	F4CTJ	-2 / -	2	Partial capture
11-05 02:34	80m	- / -11	LZ1ZF	+3 / -	3	Partial capture
11-05 02:31	80m	- / -15	LZ1ZF	+5 / -	3	Partial capture
11-05 02:27	80m	- / -17	LZ1ZF	+6 / -	3	Partial capture
11-05 02:26	80m	-22 / -12	F4CTJ	0 / -	4	Partial capture
11-05 02:23	80m	- / -5	9A5E	+12 / -	4	✓ Closing fragment
11-05 02:23	80m	- / -21	OK1UOZ	+11 / -	2	✓ Closing fragment
11-05 02:19	80m	- / -15	CT7BRV	-3 / -	4	✓ Closing fragment
11-05 02:17	80m	- / -20	EA1AUO	-16 / -	3	Partial capture
11-05 02:16	80m	-20 / -10	F4CTJ	-2 / -19	4	Partial capture
11-05 02:13	80m	- / -	UX7UU	+6 / -	4	Partial capture
11-05 02:12	80m	- / -	9A5E	+7 / -	3	Partial capture
11-05 02:10	80m	-23 / -16	UT5EL	+19 / -	4	✓ Closing observed
10-29 00:30	80m	- / -17	PI4DX	+7 / -	4	✓ Closing fragment
10-18 00:31	160m	- / -17	PI4DX	+8 / -	2	✓ Closing fragment
10-04 00:12	160m	- / -14	GW8DX	0 / -	4	Partial capture
10-04 00:00	160m	- / -15	GW8DX	-1 / -	3	Partial capture
10-03 23:54	160m	- / -13	GW8DX	+2 / -	6	Partial capture
10-03 23:43	40m	- / -	M9TLH	-11 / -	3	Partial capture
10-03 23:40	40m	-20 / -	WP4TUN	- / -	2	Partial capture
09-21 02:26	40m	- / -	EB3JT	-12 / -	4	Partial capture
09-21 01:33	40m	-20 / -	ON1DGN	- / -24	3	✓ Closing fragment
09-21 01:28	40m	-20 / -	YY4GPM	-16 / -20	7	✓ Closing observed
09-08 00:15	40m	- / -10	YO9HP	-9 / -	2	✓ Closing fragment
09-07 01:35	40m	-13 / -16	A41KB	-8 / -	7	Partial capture
09-07 01:30	40m	-14 / -	D44TWO	- / -15	2	Partial capture
09-07 01:30	40m	- / -	EB3JT	-7 / -	3	Partial capture
09-07 01:29	40m	- / -	UR4QWW	-16 / -	3	Partial capture
09-07 01:27	40m	-17 / -7	SV5BYP	-8 / -11	5	✓ Full exchange observed
08-29 19:14	20m	-20 / -	HB9GWX	- / -19	2	Partial capture
08-29 19:08	20m	-17 / -	HB9GWX	- / -	4	Partial capture
08-28 00:22	40m	- / -	UT5ZC	+4 / -	2	Partial capture
08-28 00:18	40m	-18 / -10	RT2F	-8 / -16	8	✓ Full exchange observed
08-15 00:23	20m	- / 0	SV5BYP	-18 / -	2	✓ Closing fragment
08-15 00:16	20m	- / -	IW2MYH	-10 / -	5	Partial capture
08-14 21:09	20m	- / -	RA3ZH	-2 / -	4	Partial capture
08-14 21:02	20m	- / -	RA3ZH	-3 / -	3	Partial capture
08-14 20:57	20m	- / -	RA3ZH	-3 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
022630  -8 1009  N4TD F4CTJ -12
022645 -22 2031  F4CTJ N4TD EM75
022700  +7 1009  N4TD F4CTJ -10
022745  +8 1715  N4TD LZ1ZF -17 (x3)
022900 -24 2031  UB5O/M N4TD EM75
023115  +7 1715  N4TD LZ1ZF -15 (x6)
023630  -2 1009  N4TD F4CTJ -06
023645 -21 2075  F4CTJ N4TD EM75

160m

UTC    dB Audio  Message
235400  +2 2232  N4TD GW8DX -13 (x13)
003130  +7 2122  N4TD PI4DX -17 (x2)

40m

UTC    dB Audio  Message
013400 -18 1755  ON1DGN N4TD R-24 (x2)
022500  -5 2159  N4TD CN8NS -16
022630 -14 2431  N4TD EB3JT JN01 (x4)
233615 -16 2094  8P6ET N4TD EM75
234030 -20 1939  WP4TUN N4TD EM75 (x2)
234300 -20 1939  HK3MS N4TD 73
234315 -10 1938  N4TD M9TLH IO92 (x3)
235030 -23 1939  S52D N4TD EM75

20m

UTC    dB Audio  Message
211100  -3  576  N4TD RA3ZH KO81
001630  -6  437  N4TD IW2MYH JN45 (x5)
002300 -16 1653  N4TD SV5BYP +00 (x2)
190800 -17 1664  HB9GWX N4TD EM75 (x6)
193700 -24 1853  UT7UJ N4TD EM75

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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