ND4X — 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: EM57

Receiver-side FT8 activity involving ND4X, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-21.

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 9 FT8 messages attributed to ND4X as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -22 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-22 dB

Estimated median S/N

Bands

20m · 9

First attributed message: 2026-08-21
Last attributed message: 2026-08-21 22:47 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 1 UTC dates
Estimated median S/N: -22 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 0, 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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with ND4X in decoded directed-looking exchanges:

9K2GR · Kuwait DB9LG · Fed. Rep. of Germany DC7LR · Fed. Rep. of Germany IK2WSA · Italy PE1EBT · Netherlands EC3A · Spain EX7CQ · Kyrgyzstan HB9EOT · Switzerland PD2ET · Netherlands PD2TX · Netherlands TC2TR · Asiatic Turkey LZ1KU · Bulgaria

Most frequent locator attributed to ND4X

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: EM57 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,169 km (approx.)
Last such locator decoded: 2026-08-21 22:46 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	ND4X S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 00:11	40m	- / -12	EC3A	-18 / -	2	Partial capture
11-06 00:03	40m	- / -	IU5HIU	-6 / -	2	Partial capture
11-06 00:00	40m	- / -13	EC3A	-16 / -	2	Partial capture
11-05 23:45	40m	- / -15	EI2JD	-8 / -	2	Partial capture
11-05 00:05	40m	- / -17	TC2TR	-16 / -	2	✓ Closing fragment
11-05 00:02	40m	- / -14	DK2MAX	-6 / -	2	Partial capture
11-04 23:56	40m	- / -2	EC3A	-8 / -	4	✓ Closing fragment
11-04 23:53	40m	- / -	IW2MYH	-12 / -	4	Partial capture
11-04 23:51	40m	- / -8	HB9EOT	-16 / -	2	✓ Closing fragment
11-04 23:50	40m	- / -	F5PBG	-4 / -	2	Partial capture
11-04 23:44	40m	- / -11	DK2MAX	0 / -	6	Partial capture
10-04 00:46	40m	- / -	G3TKT	-15 / -	5	Partial capture
09-30 00:02	80m	- / -17	LZ1KU	+8 / -	2	✓ Closing fragment
09-28 00:00	40m	- / -14	EX7CQ	-7 / -	2	✓ Closing fragment
09-03 05:15	40m	- / -	UR9QQ	-16 / -	2	Partial capture
08-21 22:46	20m	-22 / -15	PE1EBT	-5 / -9	6	✓ Full exchange observed
08-21 22:42	20m	-21 / -11	DB9LG	+10 / -	7	✓ Closing observed
08-21 22:40	20m	- / -4	9K2GR	+4 / -	2	Partial capture
08-21 22:28	20m	- / -	RY6O	-12 / -	3	Partial capture
08-21 22:27	20m	- / -8	IK2WSA	+7 / -	4	✓ Closing fragment
08-21 22:25	20m	-20 / -2	9K2GR	+2 / -	4	✓ Closing observed
08-16 21:02	20m	- / -10	DC7LR	+4 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
000545 -15 1971  ND4X TC2TR -17 (x2)
212645 -11  710  ND4X IU5TRG JN53
234500  -9 1880  ND4X EI2JD -15 (x2)
000045 -15 1655  ND4X EC3A -13 (x2)
000345  -5  696  ND4X IU5HIU JN53 (x2)
001145 -18 1655  ND4X EC3A -12 (x2)
001715  -6 1491  ND4X IU5HIU JN53 (x4)

80m

UTC    dB Audio  Message
000230  +8 1709  ND4X LZ1KU -17 (x2)

20m

UTC    dB Audio  Message
224130 -22 1828  M7SQI ND4X R-14
224245  +9  432  ND4X DB9LG JO40 (x5)
224500 -21 1828  DB9LG ND4X RR73
224515  +8  432  ND4X DB9LG 73
224600 -23 1826  PE1EBT ND4X EM57
224615  -7  277  ND4X PE1EBT -15
224630 -20 1827  PE1EBT ND4X R-09
224645  +0  277  ND4X PE1EBT -15
224700 -24 1828  PE1EBT ND4X R-13
224715  -7  277  ND4X PE1EBT RR73
203100  -7 1345  ND4X IZ0DHC -11

CW

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

Explore CW reception at SO8OO

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