NN5N — 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: EN76

Receiver-side FT8 activity involving NN5N, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-23 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 11 FT8 messages attributed to NN5N as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 20 m (9%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

11
Messages attributed
2
UTC dates decoded
3
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 10 20m · 1
First attributed message: 2026-08-23
Last attributed message: 2026-08-28 03:34 UTC

Observed FT8 message patterns

Attributed sample
11 messages
Active dates
2 UTC dates
Estimated median S/N
-13 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 3.

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 NN5N in decoded directed-looking exchanges:

Most frequent locator attributed to NN5N

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
EN76 · 3 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,196 km (approx.)
Last such locator decoded
2026-08-28 03:34 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 UTCBandNN5N S/NCounterpartCounterpart S/NMsgsCapture
10-12 18:48 40m - / - R7RCG -8 / - 3 Partial capture
08-29 02:41 20m - / -14 TJ1GD -10 / - 5 Partial capture
08-28 03:43 40m - / -2 ON3ANY 0 / - 4 Partial capture
08-28 03:40 40m - / -11 DG1KFR +9 / - 5 Partial capture
08-28 03:37 40m - / -19 ES2AJ +4 / - 3 Partial capture
08-28 03:31 40m -6 / - OK2ZDL - / -20 2 ✓ Closing fragment
08-28 03:28 40m -10 / - <...> - / - 2 Partial capture
08-28 03:26 40m -16 / - CT7AUT - / -15 4 ✓ Closing fragment
08-28 03:13 20m - / -4 RK4FF -14 / - 4 Partial capture
08-28 03:11 20m - / - R7WA +8 / - 3 Partial capture
08-26 02:38 20m - / -13 RA4HG -24 / - 2 Partial capture
08-26 02:22 20m - / -7 V31DL -8 / - 29 ✓ Closing fragment
08-26 02:21 20m - / - HK3G -13 / - 8 Partial capture
08-23 03:09 20m - / - OD5KU -4 / - 13 Partial capture
08-23 02:10 20m - / -13 F1PBZ +2 / - 2 Partial capture
08-23 02:06 20m - / -6 NI9D -16 / - 2 Partial capture
08-23 02:03 20m - / - DG4BZ 0 / - 3 Partial capture
08-23 01:59 20m - / 0 W4VNE -18 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
033700  +1 2140  NN5N ES2AJ -19 (x3)
034015 +11  645  NN5N DG1KFR -11 (x5)
034345  +1  645  NN5N ON3ANY JO10 (x4)
184800  -6 1856  NN5N R7RCG KN64 (x3)
20m 
UTC    dB Audio  Message
023645  -7 1279  NN5N V31DL 73
023845 -23 2121  NN5N RA4HG -13 (x2)
031115 +11 1933  NN5N R7WA LN32 (x3)
031315 -10 1635  NN5N RK4FF -04 (x4)
024130 -11  501  NN5N TJ1GD -14 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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