NP3MR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Puerto Rico Most frequent locator attributed to this token: FK78

Receiver-side FT8 activity involving NP3MR, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-09 and 2026-09-15.

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 18 FT8 messages attributed to NP3MR as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -22 dB; no usual signal pattern is inferred.

Overview

18
Messages attributed
3
UTC dates decoded
6
Active 15-min windows
-22 dB
Estimated median S/N

Bands

40m · 18
First attributed message: 2026-09-09
Last attributed message: 2026-09-15 04:17 UTC

Observed FT8 message patterns

Attributed sample
18 messages
Active dates
3 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) 18, 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 NP3MR 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 NP3MR

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
FK78 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,219 km (approx.)
Last such locator decoded
2026-09-15 04:17 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 UTCBandNP3MR S/NCounterpartCounterpart S/NMsgsCapture
09-15 06:20 60m - / -13 PA4PA -6 / - 2 ✓ Closing fragment
09-15 05:47 40m - / -16 F4GYM/P -12 / - 2 Partial capture
09-15 05:00 40m - / -8 LX1TI -4 / - 3 ✓ Closing fragment
09-15 04:45 40m - / - DL6REX -10 / - 4 ✓ Closing fragment
09-15 04:14 40m -23 / -12 HB9IRO +7 / -13 6 ✓ Full exchange observed
09-15 04:11 40m -18 / - WD4OBP -20 / 0 2 ✓ Closing observed
09-15 03:53 40m - / -18 IZ8PPI -16 / - 4 Partial capture
09-15 03:42 40m - / -13 MI0OBC +2 / - 2 ✓ Closing fragment
09-12 06:39 40m - / - PA2RO -4 / - 3 Partial capture
09-11 06:16 40m - / - IZ4DYU -5 / - 6 Partial capture
09-11 06:15 40m - / -17 F4MMH -4 / - 4 Partial capture
09-11 06:12 40m - / - F4MMH -5 / - 2 Partial capture
09-11 05:49 60m - / -10 F5LSU -10 / - 2 ✓ Closing fragment
09-11 05:40 60m - / -9 LB8MG -7 / - 2 ✓ Closing fragment
09-11 05:19 60m - / -15 DK2MAX -4 / - 4 ✓ Closing fragment
09-11 05:18 60m - / -19 DL6NDN -6 / - 3 ✓ Closing fragment
09-11 05:09 60m - / -19 DG4HAD -6 / - 2 Partial capture
09-11 05:00 60m - / -19 DD6ZV -5 / - 11 Partial capture
09-11 04:56 60m - / -2 F5MSE -6 / - 3 ✓ Closing fragment
09-11 04:49 60m - / -10 SP3QDM +11 / - 3 ✓ Closing fragment
09-11 04:46 60m - / -21 SQ7OBB -11 / - 8 Partial capture
09-11 04:43 60m - / -15 DL4YDR -12 / - 4 ✓ Closing fragment
09-11 04:42 60m - / -5 DL4ME -3 / - 3 ✓ Closing fragment
09-11 04:39 60m - / -6 S57NCP -16 / - 4 ✓ Closing fragment
09-11 04:37 60m - / -15 G3WGC -16 / - 7 ✓ Closing fragment
09-11 04:36 60m - / -9 DK2CC -15 / - 6 ✓ Closing fragment
09-11 04:33 60m - / -15 YO3CWC +7 / - 5 Partial capture
09-11 04:33 60m - / -13 DL9RNO +1 / - 9 ✓ Closing fragment
09-11 04:32 60m - / -14 PA3BUD 0 / - 3 ✓ Closing fragment
09-11 04:29 40m - / - OH6NEQ -13 / - 3 Partial capture
09-11 04:20 40m - / -16 IK4TVP -18 / - 2 Partial capture
09-10 07:33 40m - / -20 G4YAN -15 / - 2 Partial capture
09-10 07:32 40m - / -19 DL2JPN -5 / - 5 Partial capture
09-10 07:15 40m - / -20 G4DBW -17 / - 5 ✓ Closing fragment
09-10 06:57 40m - / -20 OZ1KZX -8 / - 2 ✓ Closing fragment
09-10 06:33 40m - / - DH5BM -5 / - 2 Partial capture
09-10 06:30 40m - / -9 IK2SAR -18 / - 2 ✓ Closing fragment
09-10 06:30 40m - / - DH5BM -6 / - 2 Partial capture
09-10 05:58 60m - / -8 PA5KK -12 / - 3 ✓ Closing fragment
09-10 05:52 60m - / -10 F6ICX -4 / - 3 ✓ Closing fragment
09-10 05:51 60m - / - DN2FBG -18 / - 2 ✓ Closing fragment
09-10 05:45 60m - / -18 DL6TK -12 / - 4 ✓ Closing fragment
09-10 05:33 60m - / -18 DL7FD +2 / - 4 ✓ Closing fragment
09-10 05:31 60m - / -17 LA6YEA +3 / - 4 ✓ Closing fragment
09-10 05:29 60m - / -9 DL1LCK -13 / - 4 ✓ Closing fragment
09-10 05:29 60m - / -20 EA3EDU -11 / - 3 ✓ Closing fragment
09-10 05:22 60m - / -15 LA7DFA -5 / - 3 ✓ Closing fragment
09-10 05:18 60m - / -14 IW3AGO -1 / - 3 ✓ Closing fragment
09-10 05:14 60m - / -16 SQ7FPH 0 / - 2 ✓ Closing fragment
09-10 05:11 60m - / -14 F5ILV -24 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
051945 -10 1494  NP3MR DL6NDN 73
051945  -2 2587  NP3MR DK2MAX JN58 (x4)
052415 -23 1579  NP3MR F4GND IN98
052915  -1 2460  NP3MR LB8MG -10
053245 -16  902  NP3MR M1FJG 73
054045  -8 2460  NP3MR LB8MG -09 (x2)
054915  -9  632  NP3MR F5LSU R-10 (x2)
053000 -12 1741  NP3MR PE1NMM JO32
062015  -6  238  NP3MR PA4PA -13 (x2)
40m 
UTC    dB Audio  Message
041615 +20  559  NP3MR HB9IRO 73
041630 -24 1700  CQ NP3MR FK78                         a1 (x2)
041730 -22 1700  KD2BRV NP3MR -04
044545 -11 1751  NP3MR DL6REX JO40 (x4)
050015  -2 1098  NP3MR LX1TI JN29 (x2)
050045 -15 2241  NP3MR IQ4JO JN63
050115  -9 1098  NP3MR LX1TI 73
051015 -17 3080  NP3MR EI7IN IO63
054730 -12  401  NP3MR F4GYM/P -16 (x2)
80m 
UTC    dB Audio  Message
053715  -6 2603  NP3MR F1PBZ -15 (x2)
050430  -7 1117  NP3MR F1BLQ IN94 (x6)
050915 +15 1414  NP3MR OM3PC JN88 (x7)
20m 
UTC    dB Audio  Message
234615 -19 2179  NP3MR K4C RR73
055715  +0  412  NP3MR IK4LZH JN54 (x5)
042215  -3 2566  NP3MR GW/VK5PO -19 (x3)
054615  -8 2763  NP3MR IW0RLC R-17 (x2)
065615  -7  807  NP3MR EA3CUU JN12
070515 -11 2013  NP3MR M3TLJ R-25
070515  -4  806  NP3MR G4TML IO93
070815 -18 2013  NP3MR M3TLJ R-25

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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