NP4PR — 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: Puerto Rico Most frequent locator attributed to this token: FK68

Receiver-side FT8 activity involving NP4PR, decoded by SO8OO in southeastern Poland. 535 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 51 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 535 FT8 messages attributed to NP4PR as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (86%), followed by 20 m (14%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (66%); the estimated median was -17 dB.

Overview

535
Messages attributed
51
UTC dates decoded
114
Active 15-min windows
-17 dB
Estimated median S/N

Bands

40m · 458 20m · 77
First attributed message: 2026-06-07
Last attributed message: 2026-10-22 23:11 UTC

Observed FT8 message patterns

Attributed sample
535 messages
Active dates
51 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-22 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 353, moderate (-15 to -9 dB) 175, strong (≥ -8 dB) 7.

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 NP4PR in decoded directed-looking exchanges:

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 NP4PR

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 · 325 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,360 km (approx.)
Last such locator decoded
2026-10-22 23:11 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 UTCBandNP4PR S/NCounterpartCounterpart S/NMsgsCapture
10-22 22:46 40m - / +4 ON1JP -19 / - 2 Partial capture
10-22 22:29 40m - / -4 RA4CC +8 / - 3 ✓ Closing fragment
10-21 23:24 40m - / - 9A5CW -2 / - 3 Partial capture
10-20 00:59 40m -12 / - FM5GB - / - 2 Partial capture
10-20 00:48 40m - / - HB9ZHK -18 / - 2 Partial capture
10-20 00:47 40m - / - G8BLC -10 / - 3 Partial capture
10-20 00:46 40m - / - F4BJN -15 / - 6 Partial capture
10-20 00:42 40m -15 / -17 UN8PC -17 / -24 4 ✓ Full exchange observed
10-20 00:40 40m -13 / - RJ3DC - / -15 3 Partial capture
10-20 00:39 40m - / -2 F1PBZ +4 / - 3 Partial capture
10-20 00:39 40m - / - IU8RFW -10 / - 4 Partial capture
10-20 00:36 40m - / - F4BJN -18 / - 2 Partial capture
10-20 00:35 40m -13 / -4 CT2IOK -16 / -8 7 ✓ Full exchange observed
10-20 00:35 40m - / - EI3CTB -4 / - 5 Partial capture
10-20 00:34 40m - / -17 TA2ED -20 / - 2 Partial capture
10-20 00:31 40m -12 / - 7P8GE - / -18 3 Partial capture
10-19 00:53 40m - / - CT7AUT -18 / - 2 Partial capture
10-19 00:49 40m -16 / - OD5XX - / - 2 Partial capture
10-18 23:55 40m - / - LZ2VQ -13 / - 3 Partial capture
10-18 23:54 40m - / - EA8AR -13 / - 2 Partial capture
10-18 23:53 40m - / - ON4KBU -8 / - 2 Partial capture
10-18 23:47 40m - / - G7KNF -16 / - 2 ✓ Closing fragment
10-18 23:43 40m - / - RX6LN -8 / - 5 Partial capture
10-18 23:43 40m - / -10 F1PBZ -4 / - 4 Partial capture
10-18 23:42 40m - / -16 DJ7TO +4 / - 6 ✓ Closing fragment
10-18 23:42 40m - / - EA5JAH -14 / - 2 Partial capture
10-18 23:41 40m - / - DL1MEV +1 / - 3 Partial capture
10-18 00:08 40m -15 / - UB3ADO/P - / -6 3 Partial capture
10-18 00:07 40m -17 / - WB8ZFL - / -14 3 ✓ Closing fragment
10-18 00:04 40m - / - EA7LGM -1 / - 2 Partial capture
10-18 00:02 40m - / - M9SND -8 / - 2 Partial capture
10-18 00:01 40m - / - YO6LM -4 / - 2 Partial capture
10-17 23:53 40m -20 / - EY7BM - / - 4 Partial capture
10-16 23:45 40m - / - IW2MYH -13 / - 5 Partial capture
10-16 23:44 40m - / - EA5JAH -16 / - 2 Partial capture
10-16 23:23 40m - / - DG5PW -7 / - 2 Partial capture
10-16 23:23 40m - / - DL1AUW 0 / - 2 Partial capture
10-16 23:23 40m - / - F4BYA +11 / - 4 Partial capture
10-16 23:22 40m - / -7 ON8WR -9 / - 4 ✓ Closing fragment
10-16 23:22 40m - / - IZ0MIT -14 / - 3 Partial capture
10-16 23:21 40m - / - IU2TFN -10 / - 2 ✓ Closing fragment
10-16 23:17 40m - / - F4BYA +6 / - 8 Partial capture
10-16 23:17 40m - / -12 HA7JDU +4 / - 6 Partial capture
10-16 23:15 160m - / - OM0RX -2 / - 4 Partial capture
10-16 23:08 40m - / - M7IYY -2 / - 4 Partial capture
10-16 23:08 40m - / -18 RL3T -5 / - 5 Partial capture
10-16 23:05 40m - / -8 F4HTO +2 / - 6 ✓ Closing fragment
10-16 23:04 40m - / -11 DL8LSK -18 / - 2 ✓ Closing fragment
10-16 23:02 40m - / - R4FDK -16 / - 3 Partial capture
10-16 23:02 40m - / - EA3DNC -11 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
004830 -14 1424  NP4PR F4BJN JN25
004900 -17 1859  NP4PR HB9ZHK JN47
004900 -23 1423  NP4PR F4BJN JN25
005930 -12 1422  FM5GB NP4PR FK68 (x2)
232430  +0  586  NP4PR 9A5CW JN65 (x3)
222945 +12  497  NP4PR RA4CC LO31 (x3)
224315 -21 1440  NP4PR ON1JP +04 (x3)
231100 -24 1426  CQ NP4PR FK68                         a1
160m 
UTC    dB Audio  Message
231545 -12 1502  NP4PR OM0RX JN88 (x4)
10m 
UTC    dB Audio  Message
165415 -15 1190  NP4PR EA5BH IM98 (x7)
171515 -12 2697  NP4PR DM5CY JO42
80m 
UTC    dB Audio  Message
223300  +7 1496  NP4PR UX7QV KN29 (x7)
223330  -5 1496  NP4PR DG0CFK JO52 (x5)
20m 
UTC    dB Audio  Message
215815  -9 1553  DL9ATW NP4PR RR73
215915 -15 1553  Z62NS NP4PR FK68 (x2)
014500 -23 1560  CQ NP4PR FK68 (x2)
211030 -11 1110  NP4PR DL3MIB JN57 (x2)
212200 -19 1558  FK8HC NP4PR R-23
222115 -23 1554  CQ NP4PR FK68                         a1
222200 -18 1565  NP4PR DB1EF JO41
222215 -24 1554  CQ NP4PR FK68
222530  -5 2577  NP4PR F1PBZ -20
223330  -2  827  NP4PR PD0IFI JO32 (x2)
223400 -19 1478  NP4PR M7HET IO91

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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