KA1CH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN41

Receiver-side FT8 activity involving KA1CH, decoded by SO8OO in southeastern Poland. 4 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 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 4 FT8 messages attributed to KA1CH as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

4
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

40m · 4
First attributed message: 2026-09-16
Last attributed message: 2026-09-16 01:41 UTC

Observed FT8 message patterns

Attributed sample
4 messages
Active dates
1 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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 KA1CH in decoded directed-looking exchanges:

Most frequent locator attributed to KA1CH

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
FN41
SO8OO receiver locator
KN09VW
Locator-centre separation
6,791 km (approx.)
Last such locator decoded
2026-09-16 01:39 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 UTCBandKA1CH S/NCounterpartCounterpart S/NMsgsCapture
09-16 01:45 40m - / -20 IW9FRA -19 / - 4 Partial capture
09-16 01:41 40m -5 / - IW9FRA -19 / -16 2 Partial capture
08-31 11:11 20m - / -22 IQ4JO -2 / - 4 Partial capture
08-30 11:12 20m - / -22 PD0OKP +9 / - 5 ✓ Closing fragment
08-28 11:06 20m - / -16 PD0PMF +3 / - 3 ✓ Closing fragment
08-28 10:32 20m - / -14 G0LJV -4 / - 4 ✓ Closing fragment
08-28 10:32 20m - / -8 MW9VVX -18 / - 2 ✓ Closing fragment
08-23 11:07 20m - / -18 PD1HPB -4 / - 8 Partial capture
08-19 11:21 20m - / -19 G4VJN -13 / - 2 Partial capture
08-11 11:02 20m - / - DL3HN -9 / - 2 Partial capture
08-11 10:57 20m - / - DL3HN -5 / - 4 Partial capture
08-06 10:47 20m - / - DL1R -6 / - 7 Partial capture
07-29 11:42 20m - / -17 DK1WU -12 / - 2 ✓ Closing fragment
07-29 11:36 20m - / - M8FQT -18 / - 5 Partial capture
07-27 01:29 40m - / -14 F8NHF -13 / - 6 Partial capture
07-27 01:20 40m - / - EB1LA -13 / - 3 Partial capture
07-27 01:19 40m - / - UA4FKT -6 / - 3 Partial capture
07-22 11:07 20m - / - EA7ALL -8 / - 2 ✓ Closing fragment
07-22 11:04 20m - / -18 OE3KLU +18 / - 2 Partial capture
07-22 10:59 20m - / - DL1R 0 / - 6 Partial capture
07-19 11:01 20m - / - F4GWN -2 / - 2 Partial capture
07-16 11:03 20m - / -24 UT7UJ -8 / - 4 Partial capture
07-13 11:32 20m - / - LZ3CB +4 / - 2 Partial capture
06-23 10:52 20m - / - DL1UDO -15 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
012915 -14 1842  KA1CH F8NHF JO10 (x6)
013915  -7  452  CQ KA1CH FN41
013945  -5  452  KB4KN KA1CH -06
014100 -19 1657  KA1CH IW9FRA JM68
014115  -6  452  US7KC KA1CH RR73
014145  -5  452  IW9FRA KA1CH -16
014530 -20 1658  KA1CH IW9FRA R-20 (x4)
20m 
UTC    dB Audio  Message
103300  -3 1476  KA1CH G0LJV IO93 (x3)
110630  +3  678  KA1CH PD0PMF JO32 (x3)
111200  +3  845  KA1CH PD0OKP JO32 (x5)
111130  -4 2194  KA1CH IQ4JO JN63 (x4)

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