K8NVR — 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: EN91

Receiver-side FT8 activity involving K8NVR, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-23.

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 32 FT8 messages attributed to K8NVR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (84%), followed by 20 m (16%). Most decodes (97%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

32
Messages attributed
4
UTC dates decoded
13
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-08-23
Last attributed message: 2026-09-23 01:27 UTC

Observed FT8 message patterns

Attributed sample
32 messages
Active dates
4 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-18 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 14, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with K8NVR 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 K8NVR

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
EN91 · 28 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,383 km (approx.)
Last such locator decoded
2026-09-23 01:27 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 UTCBandK8NVR S/NCounterpartCounterpart S/NMsgsCapture
10-19 13:23 10m - / 0 CN8WK +14 / - 2 ✓ Closing fragment
10-19 13:13 10m - / - IU7SQV -20 / - 2 Partial capture
09-24 00:19 80m - / -19 SP6NIV -2 / - 4 ✓ Closing fragment
09-23 01:20 80m -13 / - RI1FJZ - / - 3 Partial capture
09-23 00:23 80m -15 / - RI1FJZ - / - 10 Partial capture
09-22 00:31 80m -10 / - RI1FJZ - / - 2 Partial capture
09-18 03:20 80m -16 / -1 UT5ZC +1 / - 4 ✓ Closing observed
08-26 12:00 20m - / - DL9MY -1 / - 3 Partial capture
08-23 04:59 20m -8 / -16 IT9CCB +14 / -7 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
023700  -4 2848  K8NVR EB3JT R-13
10m
UTC    dB Audio  Message
131345 -23 1566  K8NVR IU7SQV JN81 (x2)
132315 +16 2471  K8NVR CN8WK +00 (x2)
150030 -22 1493  K8NVR EA7AK R-08
80m
UTC    dB Audio  Message
003045 -16 2784  RI1FJZ K8NVR EN91 (x11)
001930  -3 1237  K8NVR SP6NIV JO71 (x4)
20m
UTC    dB Audio  Message
122645 -20 2212  K8NVR F5JNI JN28
045815  -7 2881  CQ JA K8NVR EN91 (x2)
045900 +12 2882  K8NVR IT9CCB JM76
045915  -7 2882  IT9CCB K8NVR -07
045930 +15 2882  K8NVR IT9CCB R-16
045945  -9 2881  IT9CCB K8NVR RR73
050000 +16 2882  K8NVR IT9CCB 73
050445 -11 2881  KM7NS K8NVR -02
114700  -9 2330  K8NVR M7PHE IO93
120000  +4  828  K8NVR DL9MY JO32 (x3)
114445  -1 1214  K8NVR OH2JJA KP20
115415  -6 2914  K8NVR F5PBG 73

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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