JH1NKA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JH1NKA, decoded by SO8OO in southeastern Poland. 61 related FT8 messages, 4 CQ messages, observed on 40m, 20m, across 14 UTC dates. Heard between 2026-05-09 and 2026-08-01.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

61
Related messages
4
CQ messages
14
UTC dates heard
-6 dB
Mean decoder S/N

Bands

First seen: 2026-05-09
Last seen: 2026-08-01 18:17 UTC

Activity Heatmap

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 UTCBandJH1NKA S/NCounterpartCounterpart S/NMsgsCapture
08-01 20:16 20m - / -22 ON6NL +20 / - 3 ✓ Closing fragment
07-28 20:04 20m - / - IK0SME +2 / - 4 Partial capture
07-21 20:14 20m - / -12 RA1OD -12 / - 2 ✓ Closing fragment
07-07 19:43 20m - / -20 F5RRS -5 / - 4 Partial capture
07-06 20:24 20m - / - IU5HIU -10 / - 2 ✓ Closing fragment
07-06 20:11 20m - / -24 EA7ALL +1 / - 3 ✓ Closing fragment
06-30 20:38 20m - / -9 BA4SQI -20 / - 2 ✓ Closing fragment
06-16 19:57 20m - / - SP9SOF -10 / - 2 Partial capture
06-16 19:51 20m - / - SP9SOF -11 / - 4 Partial capture
06-15 20:25 40m - / - RJ6B -2 / - 4 ✓ Closing fragment
06-15 19:38 20m - / -18 OH3JA -12 / - 3 ✓ Closing fragment
06-15 19:18 20m - / -15 Z34K -10 / - 4 ✓ Closing fragment
06-11 20:31 20m - / -21 UW8SM -9 / - 2 Partial capture
06-04 20:51 20m - / - TA3TK +1 / - 3 Partial capture
06-04 20:47 20m - / -7 9A1CCB -10 / - 2 ✓ Closing fragment
06-04 20:46 20m - / -18 IK0SME +6 / - 3 ✓ Closing fragment
06-01 20:23 20m -10 / - BI1AFK -13 / -5 3 ✓ Closing observed
05-29 20:18 20m -12 / - YO3FVR/P - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
194315  -2 1815  JH1NKA F5RRS JN36 (x4)
195730 -20 2184  JH1NKA OK2PB JN89
195800 -12 3072  JH1NKA SP4TKA KO14
201400 -11 2485  JH1NKA RA1OD -12 (x2)
200430  +2 2967  JH1NKA IK0SME JN61 (x4)
201600 +21 2888  JH1NKA ON6NL JO21 (x3)
40m
UTC    dB Audio  Message
202530  -2 2766  JH1NKA RJ6B KN95 (x4)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.