N4PRF — 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: EM93

Receiver-side FT8 activity involving N4PRF, decoded by SO8OO in southeastern Poland. 246 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-08-28.

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 246 FT8 messages attributed to N4PRF as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (96%), followed by 40 m (3%) and 80 m (0%). Most decodes (100%) 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 -13 dB.

Overview

246
Messages attributed
8
UTC dates decoded
27
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 1 40m · 8 20m · 237
First attributed message: 2026-06-15
Last attributed message: 2026-08-28 09:59 UTC

Observed FT8 message patterns

Attributed sample
246 messages
Active dates
8 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) 93, moderate (-15 to -9 dB) 140, 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 N4PRF 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 N4PRF

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
EM93 · 140 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,042 km (approx.)
Last such locator decoded
2026-08-28 09:59 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 UTCBandN4PRF S/NCounterpartCounterpart S/NMsgsCapture
09-30 00:45 40m - / - LA6YEA -16 / - 2 Partial capture
08-28 00:15 20m -14 / - 9A5E - / -4 6 Partial capture
08-28 00:13 20m -18 / - KJ7GTX - / - 3 Partial capture
08-28 00:11 20m -12 / - K5SMH - / -25 4 ✓ Closing fragment
08-28 00:08 20m -12 / - S55X - / -6 3 ✓ Closing fragment
08-28 00:06 20m -12 / - W7RPT - / - 3 Partial capture
08-28 00:03 20m -14 / - W6TOX - / -8 3 ✓ Closing fragment
08-28 00:01 20m -11 / - KA8ZNZ - / - 5 Partial capture
08-27 23:58 20m -13 / - G0AGT - / -18 3 ✓ Closing fragment
08-27 23:57 20m -8 / - KA8ZNZ - / -25 2 Partial capture
08-27 23:55 20m -10 / - AA7RS - / - 3 Partial capture
08-27 23:52 20m -9 / - KA8ZNZ - / - 5 Partial capture
08-27 23:48 20m -11 / - HC5RF - / -11 3 Partial capture
08-27 23:45 20m -12 / - 9A3TY - / -14 6 ✓ Closing fragment
08-27 23:40 20m -11 / - N7ESA - / -16 10 ✓ Closing fragment
08-27 23:38 20m -9 / - IR7MGGC - / +2 2 Partial capture
08-27 23:32 20m -9 / - VE6CV - / - 8 Partial capture
08-27 23:30 20m -7 / - XE1YO - / - 4 Partial capture
08-27 23:24 20m -14 / - CT2KCP - / -1 11 ✓ Closing fragment
08-27 22:42 20m - / - ON5UE -14 / - 3 Partial capture
08-27 22:40 20m -12 / - K7IOC - / - 9 Partial capture
08-27 22:37 20m -14 / - W9FST - / - 5 Partial capture
08-27 21:09 20m -12 / - <...> - / - 2 Partial capture
08-27 21:05 20m -12 / - PD2V - / -7 3 Partial capture
08-27 21:03 20m -13 / - KC0VTJ - / - 3 Partial capture
08-27 21:02 20m -17 / - N7NHS - / - 2 ✓ Closing fragment
08-27 13:12 20m - / - M7MUW +8 / - 2 Partial capture
08-27 13:01 20m - / - M7MUW +5 / - 8 Partial capture
08-27 11:50 20m - / -19 M7PHE -22 / - 4 Partial capture
08-27 09:00 20m - / - PD0WL -4 / - 2 Partial capture
08-24 17:28 20m - / - G3YPD +4 / - 5 Partial capture
08-24 16:48 20m - / - G3YPD -1 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
004515 -15 2242  N4PRF LA6YEA JO48 (x2)
005215 -16 1433  N4PRF CT7AUT RR73
20m 
UTC    dB Audio  Message
001115  -9 2116  K5SMH N4PRF EM93 (x4)
001330 -19 2116  KJ7GTX N4PRF EM93 (x3)
001530 -17 2116  9A5E N4PRF EM93 (x6)
095915 -17 2117  <...> N4PRF EM93
095930  -9 1713  N4PRF HB10GBT -06

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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