K3VL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN00

Receiver-side FT8 activity involving K3VL, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-16.

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 42 FT8 messages attributed to K3VL as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 20 m (21%). 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 moderate S/N range (76%); the estimated median was -12 dB.

Overview

42
Messages attributed
6
UTC dates decoded
11
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 33 20m · 9
First attributed message: 2026-06-17
Last attributed message: 2026-09-16 02:52 UTC

Observed FT8 message patterns

Attributed sample
42 messages
Active dates
6 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 4.

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 K3VL 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 K3VL

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
FN00 · 32 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,348 km (approx.)
Last such locator decoded
2026-09-16 02:52 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 UTCBandK3VL S/NCounterpartCounterpart S/NMsgsCapture
09-20 03:10 40m - / -8 OS4K -14 / - 2 Partial capture
09-15 02:58 40m - / -23 R6FY +6 / - 5 ✓ Closing fragment
09-15 02:58 40m -14 / - R6JC -16 / -8 3 ✓ Closing observed
09-06 03:18 40m - / -12 CR7BRV -9 / - 4 ✓ Closing fragment
08-29 23:00 40m - / -20 2E0DGP +3 / - 2 ✓ Closing fragment
08-25 03:05 40m - / - US1CR 0 / - 2 Partial capture
08-25 03:01 40m - / -24 RN1CW -20 / - 2 Partial capture
08-24 03:43 40m -10 / - Z32C - / - 12 Partial capture
08-23 03:39 40m -20 / - EA5JK - / - 2 Partial capture
08-23 03:37 40m - / -17 IU0NAD -2 / - 3 ✓ Closing fragment
08-23 03:30 40m -20 / -16 KD3CZT -23 / -11 4 ✓ Full exchange observed
08-23 03:19 40m - / -10 F5MNW +6 / - 6 Partial capture
08-23 03:14 40m -11 / - KE8RWW - / -4 4 ✓ Closing fragment
08-23 03:12 40m -11 / - XE1IHD - / - 3 Partial capture
08-23 03:04 40m -10 / - PD1AIQ - / -12 3 Partial capture
08-23 03:00 40m - / -18 PD1AIQ 0 / - 5 ✓ Closing fragment
08-22 23:36 20m -11 / - AJ7LJ - / - 7 Partial capture
08-22 01:53 40m - / - UT4VL -11 / - 3 Partial capture
08-21 03:20 20m - / -20 RV6FT -15 / - 5 Partial capture
08-14 21:01 20m - / -22 DC7LR +2 / - 5 ✓ Closing fragment
08-11 03:57 40m - / -7 DC1KN -20 / - 2 ✓ Closing fragment
08-08 02:46 40m - / -10 MI7GCZ -17 / - 2 ✓ Closing fragment
07-30 02:35 40m - / - OH1MRE +4 / - 2 Partial capture
07-30 02:20 40m - / -11 DK2FM -4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
031945  -6  916  K3VL CR7BRV -12 (x2)
030915  -1 2667  K3VL IK6DLK JN63
025830 -14 2529  R6JC K3VL R-08
025845 -16 1972  K3VL R6JC RR73
025845  +7  233  K3VL R6FY LN05
025900 -15 2528  R6JC K3VL 73
025915  +7 2467  K3VL R6FY LN05 (x4)
031130 -15 2528  R6OK K3VL FN00
025245 -13 2584  W5MYR K3VL FN00
031015 -17 1531  K3VL OS4K -08 (x2)
20m 
UTC    dB Audio  Message
210315  +4 2726  K3VL DC7LR -19 (x2)
032030 -16 2081  K3VL RV6FT -20 (x5)
233615 -10 2575  AJ7LJ K3VL FN00 (x7)
000045 -14 2566  W8EJC K3VL FN00
80m 
UTC    dB Audio  Message
034030 -13 2281  K3VL MI7XHT IO64

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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