NP4PS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Puerto Rico Most frequent locator attributed to this token: FK68

Receiver-side FT8 activity involving NP4PS, decoded by SO8OO in southeastern Poland. 158 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-16.

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 158 FT8 messages attributed to NP4PS as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 80 m (15%) and 40 m (6%). 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 -13 dB.

Overview

158

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 23 40m · 10 20m · 125

First attributed message: 2026-06-06
Last attributed message: 2026-09-16 02:09 UTC

Observed FT8 message patterns

Attributed sample: 158 messages
Active dates: 17 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 63, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 13.

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 NP4PS in decoded directed-looking exchanges:

EA3DNC · Spain IZ0CVT · Italy RD7LO · European Russia RN4AQ · European Russia SP8PT · Poland A71UN · Qatar DK9ZQ · Fed. Rep. of Germany EB1LA · Spain KF8WX · United States R2AL · European Russia TA1CQ · European Turkey UT2AU · Ukraine

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 NP4PS

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: FK68 · 62 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,360 km (approx.)
Last such locator decoded: 2026-09-16 02:09 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	NP4PS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 02:09	40m	- / -15	F4CQS	-5 / -	2	Partial capture
09-04 00:46	40m	- / -	MI0LPO	-8 / -	2	Partial capture
09-04 00:42	40m	- / -	PD1LVK	-5 / -	2	Partial capture
09-04 00:39	40m	- / -	PC2J	+1 / -	8	Partial capture
08-27 11:32	10m	- / -	DN9ZZ	-12 / -	2	Partial capture
08-27 11:27	10m	- / -	DF4WC	-14 / -	2	Partial capture
08-27 02:54	40m	- / -	LZ2VQ	-6 / -	2	Partial capture
08-27 02:54	40m	-18 / -	AJ4MP	- / -	2	✓ Closing fragment
08-27 02:53	40m	- / -	ON6AA	+9 / -	5	Partial capture
08-18 10:35	20m	- / -	DL9UXF	-9 / -	3	Partial capture
08-17 01:10	80m	- / -	CT7AUT	-22 / -	2	Partial capture
08-17 01:04	80m	- / -12	R9CS/P	+6 / -	6	✓ Closing fragment
08-15 01:44	80m	- / -	W3DQS	-24 / -	2	Partial capture
08-15 01:41	80m	- / -25	DK7ZT	+1 / -	5	Partial capture
08-15 01:41	80m	- / -21	OH1MLZ	+12 / -	5	✓ Closing fragment
08-15 01:41	80m	- / -	IK0SHH	-2 / -	10	Partial capture
08-15 01:30	80m	- / -	IK0SHH	-4 / -	12	Partial capture
08-15 01:29	80m	- / -17	SP2HNF	+13 / -	4	✓ Closing fragment
08-12 20:28	20m	- / -	DL1R	+6 / -	9	Partial capture
08-12 20:28	20m	- / -	RA3ZH	-7 / -	2	Partial capture
08-12 20:24	20m	- / -13	DK9ZQ	-5 / -	5	✓ Closing fragment
08-10 21:11	10m	- / -15	RN4AQ	-5 / -	3	✓ Closing fragment
08-10 20:22	10m	- / -10	RD7LO	-7 / -	8	✓ Closing fragment
08-10 20:10	10m	- / -7	I5PU	-17 / -	2	Partial capture
08-01 14:08	10m	- / -17	IZ0CVT	-10 / -	2	✓ Closing fragment
07-31 02:18	40m	- / -12	R5AV	-3 / -	4	Partial capture
07-30 01:54	20m	- / +2	RN6MA	-14 / -	2	Partial capture
07-24 19:55	10m	- / -	DL8NW	-11 / -	4	Partial capture
07-24 01:08	40m	- / -9	G1LQT	-18 / -	8	Partial capture
07-24 00:51	40m	- / -	MW0KJN	-23 / -	2	Partial capture
07-24 00:50	40m	- / -13	RN6MA	+3 / -	3	Partial capture
07-24 00:46	40m	- / -15	IC8TEM	-12 / -	4	✓ Closing fragment
07-23 01:42	20m	- / -	EA1IOK	-8 / -	4	Partial capture
07-23 01:23	80m	- / -8	W4IEE	-8 / -	2	Partial capture
07-23 01:22	80m	- / -	SP7MOQ	+12 / -	3	Partial capture
07-23 01:21	80m	- / -20	SP3IOE	+8 / -	3	✓ Closing fragment
07-23 01:20	80m	- / -	F4BYA	+14 / -	3	Partial capture
07-23 01:15	80m	- / -	SP7MOQ	+14 / -	6	Partial capture
07-23 01:12	80m	- / -	DF5DP	-7 / -	2	Partial capture
07-23 01:12	80m	- / -18	HA7TM	+22 / -	4	✓ Closing fragment
07-23 01:11	80m	- / -	F4BYA	+10 / -	3	Partial capture
07-23 01:03	80m	- / -16	SP2WGB	+7 / -	3	Partial capture
07-23 01:01	80m	- / -	OH5LF	+5 / -	5	Partial capture
07-23 00:58	80m	- / -	OH5LF	+20 / -	2	Partial capture
07-23 00:57	80m	- / -	F4BYA	+14 / -	6	Partial capture
07-23 00:57	80m	- / -	HA7TM	+18 / -	3	Partial capture
07-18 03:01	20m	- / -	R3KCW	-16 / -	2	Partial capture
07-18 02:58	20m	- / -14	UT2AU	0 / -	3	✓ Closing fragment
07-18 02:48	40m	- / -	DL2VEL	-13 / -	5	Partial capture
07-18 02:47	80m	- / -	EA2AR	-20 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
003945  +6 1530  NP4PS PC2J JO22 (x6)
004245  -8 2284  NP4PS PD1LVK JO22
004245  -1 1531  NP4PS PC2J JO22
004315  -2 2284  NP4PS PD1LVK JO22
004530 -20 1531  CQ NP4PS FK68
004615  -5 1240  NP4PS MI0LPO IO64 (x2)
020900 -22 1532  CQ NP4PS FK68                         a1
020945  -5 1531  NP4PS F4CQS -15 (x2)

10m

UTC    dB Audio  Message
202230  -6  899  NP4PS RD7LO LN06 (x8)
211100  -7  380  NP4PS RN4AQ LN19 (x3)
112715 -15 1564  NP4PS DF4WC JN49 (x2)
113245 -12 1837  NP4PS DN9ZZ JO32 (x2)

20m

UTC    dB Audio  Message
202830  -6  397  NP4PS RA3ZH KO81
202830  +8 2674  NP4PS DL1R JN58
202900  -8  397  NP4PS RA3ZH KO81
202900  +9 2673  NP4PS DL1R JN58 (x8)
103545 -12 2501  NP4PS DL9UXF JO71 (x3)
103845 -16 2501  NP4PS ON8BB JO21

80m

UTC    dB Audio  Message
014400  -5  407  NP4PS IK0SHH JN62
014430 -24  760  NP4PS W3DQS EM95
014430  -7 2010  NP4PS IK0SHH JN62
014500 -24  760  NP4PS W3DQS EM95
014500 -11 2010  NP4PS IK0SHH JN62 (x2)
010415  +5 2344  NP4PS R9CS/P LO75 (x2)
010445 -14  404  NP4PS EJ8JCB -17
010515  +3 2345  NP4PS R9CS/P LO75 (x4)
011015 -20 1449  NP4PS CT7AUT IM67 (x2)

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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