N1PHR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving N1PHR, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-24.

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 N1PHR as the transmitting token by decoded message structure across 6 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%). Most decodes (94%) 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

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 5 40m · 2 20m · 27

First attributed message: 2026-06-07
Last attributed message: 2026-08-24 02:03 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 6 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 10.

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 N1PHR in decoded directed-looking exchanges:

IU5HIU · Italy ON8BB · Belgium SP9CSE · Poland UT7UJ · Ukraine E74K · Bosnia-Herzegovina EC3A · Spain DL6II · Fed. Rep. of Germany I5MPN · Italy NW8D · United States PI4DX · Netherlands

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	N1PHR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-02 00:24	60m	- / -15	E74K	+4 / -	2	✓ Closing fragment
08-23 00:17	60m	- / -13	EC3A	-16 / -	2	✓ Closing fragment
08-21 21:35	20m	-13 / -	N7VBN	- / -10	2	Partial capture
08-21 21:21	20m	- / -	DB9LG	-3 / -	4	Partial capture
08-21 21:20	20m	-6 / -7	IU5HIU	-1 / -10	5	✓ Full exchange observed
08-05 21:31	20m	- / -	SA5OBE	-14 / -	2	Partial capture
08-03 02:45	40m	- / -	F5PBG	-7 / -	5	Partial capture
07-23 03:55	80m	- / -	DL3TC	-10 / -	2	Partial capture
07-23 03:55	80m	- / -3	DL6II	-2 / -	3	✓ Closing fragment
07-23 03:55	80m	- / 0	PI4DX	-10 / -	7	✓ Closing fragment
07-23 03:54	80m	- / 0	I5MPN	+3 / -	3	✓ Closing fragment
07-16 18:42	20m	- / -14	RA4LAG	0 / -	4	Partial capture
07-16 18:39	20m	- / -	RA4LAG	-2 / -	2	Partial capture
07-11 11:40	20m	- / -22	UT7UJ	-2 / -	2	✓ Closing fragment
06-26 20:59	20m	- / -14	F5OYA/P	-7 / -	25	Partial capture
06-26 20:54	20m	- / -	F5OYA/P	-9 / -	5	Partial capture
06-24 18:02	20m	- / -	M8KUG	-10 / -	3	Partial capture
06-24 17:58	20m	- / -17	UT4FM	-7 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
001745 -15 1752  N1PHR EC3A R-13 (x2)
002400  +7 1130  N1PHR E74K R-15 (x2)

80m

UTC    dB Audio  Message
035530 -14 1046  N1PHR PI4DX JO21
035530  +3  873  N1PHR I5MPN 73
035530  -5 1343  N1PHR DL6II JO31
035530 -14 1502  N1PHR DL3TC JO50
035600 -16 1046  N1PHR PI4DX JO21
035600  +1  873  N1PHR I5MPN +00
035630 -14 1046  N1PHR PI4DX JO21
035630  -4 1343  N1PHR DL6II R-03
035630  -7 1502  N1PHR DL3TC JO50
035700  -4 1046  N1PHR PI4DX JO21
035700  +3 1343  N1PHR DL6II 73
035730 -11 1046  N1PHR PI4DX JO21 (x3)
020315 -13 2721  NW8D N1PHR RR73

20m

UTC    dB Audio  Message
211945  -8 2710  UW8SM N1PHR -17
212030  +0  734  N1PHR IU5HIU JN53
212045  -6 2710  IU5HIU N1PHR -10
212100  -3  735  N1PHR IU5HIU R-07
212115  -6 2710  IU5HIU N1PHR RR73
212130  +5 2710  N1PHR IZ2OAR JN45
212130  -1  735  N1PHR IU5HIU 73
212130  -4  832  N1PHR DB9LG JO40 (x4)
212315  -4 2710  SP9CSE N1PHR RR73
212715  -5 2711  K7AKG N1PHR -13
213515 -15  836  N7VBN N1PHR -10 (x2)

40m

UTC    dB Audio  Message
024545  -5 2417  N1PHR F5PBG IN78 (x5)

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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