KC3HRV — 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: FN20

Receiver-side FT8 activity involving KC3HRV, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-25.

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 69 FT8 messages attributed to KC3HRV as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 20 m (1%). 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 weak S/N range (96%); the estimated median was -20 dB.

Overview

69
Messages attributed
7
UTC dates decoded
16
Active 15-min windows
-20 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-25 23:14 UTC

Observed FT8 message patterns

Attributed sample
69 messages
Active dates
7 UTC dates
Estimated median S/N
-20 dB
Estimated 10th-90th percentile
-22 to -16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 3, 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.

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 KC3HRV

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
FN20 · 38 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,111 km (approx.)
Last such locator decoded
2026-10-25 23:14 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 UTCBandKC3HRV S/NCounterpartCounterpart S/NMsgsCapture
10-25 23:20 40m - / -8 F8MRQ -19 / - 3 ✓ Closing fragment
10-25 22:59 40m - / -8 EA1Y -13 / - 3 Partial capture
09-27 22:49 40m - / - CT7AUT -13 / - 5 Partial capture
09-27 22:46 40m - / +5 PI4DX +5 / - 2 ✓ Closing fragment
09-19 01:25 40m - / - EB1LA -11 / - 4 Partial capture
09-19 01:24 40m - / - F5PBG -6 / - 2 Partial capture
09-19 01:15 40m - / - F5PBG -10 / - 2 Partial capture
09-19 01:08 40m - / - F5PBG -18 / - 3 Partial capture
09-19 01:08 40m - / - MI7XHT -6 / - 3 Partial capture
09-19 00:52 40m -18 / - AC4SP - / -13 2 Partial capture
09-18 01:23 40m - / -5 NU1T -2 / - 2 ✓ Closing fragment
09-18 01:20 40m -22 / - KR4FJQ - / -10 2 ✓ Closing fragment
09-18 01:15 40m - / - UA4FKT +4 / - 4 Partial capture
09-18 01:13 40m -22 / - N4BWW - / -6 2 Partial capture
09-13 01:59 40m -21 / - VE3GJP - / -10 4 Partial capture
09-13 01:51 40m - / +1 M0ILT -4 / - 2 ✓ Closing fragment
09-13 01:44 40m -20 / - WA6GXQ - / - 2 ✓ Closing fragment
09-13 01:38 40m -20 / - KF9UG - / - 3 Partial capture
09-13 01:35 40m -19 / - KC9RXM - / -14 4 ✓ Closing fragment
09-13 01:33 40m -19 / - N9NTC - / -6 2 ✓ Closing fragment
09-13 01:29 40m -22 / - K3YTL -19 / -2 3 ✓ Closing observed
09-13 01:27 40m -19 / -3 EA8BS -7 / -7 5 ✓ Full exchange observed
09-13 01:22 40m -14 / - W3UCA - / -11 3 ✓ Closing fragment
09-13 01:12 40m -21 / - W8MSC - / -19 3 ✓ Closing fragment
09-13 01:10 40m -18 / - AB9Z - / -13 2 ✓ Closing fragment
09-13 01:09 40m -20 / - VA2HMD - / - 2 Partial capture
09-13 01:07 40m -20 / - YV4EBD - / - 2 Partial capture
09-13 01:04 40m -20 / - K1BIF - / -9 3 ✓ Closing fragment
09-13 01:03 40m -20 / - VE3IN - / -13 2 ✓ Closing fragment
09-13 00:57 40m -22 / - W8MW - / -8 2 Partial capture
09-13 00:54 40m -22 / - KR4HBQ - / -16 3 ✓ Closing fragment
09-13 00:52 40m -19 / - VE3WWR - / -1 3 ✓ Closing fragment
09-12 01:03 40m - / - F5PBG -3 / - 4 Partial capture
09-12 00:58 40m - / -13 IK4TVP -21 / - 6 Partial capture
09-12 00:57 40m - / - F5PBG -7 / - 4 Partial capture
09-12 00:53 40m -22 / - KF8CEQ - / - 2 Partial capture
09-12 00:50 40m -19 / - AC3KH - / - 4 Partial capture
09-12 00:38 40m - / - EB3JT -7 / - 6 Partial capture
09-12 00:33 40m -20 / - N1EDF - / -12 2 Partial capture
09-07 02:01 40m -16 / - HI3RRR - / -10 3 Partial capture
09-07 01:42 40m -20 / - KC1YJ -19 / - 2 ✓ Closing observed
09-07 01:40 40m - / - F5PBG -8 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
224630  +1 2099  KC3HRV PI4DX RR73
224930 -12 1452  KC3HRV CT7AUT IM67 (x5)
225400 -10  457  KC3HRV MI7XHT IO64
225930 -11 1068  KC3HRV EA1Y -08 (x3)
231030 -19 1710  KC3HRV EA8DGI IL27
231430 -23 1764  WA4CAS KC3HRV FN20
232030 -23 1765  KC3HRV F8MRQ JN17 (x3)

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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