JR5MJS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JR5MJS, decoded by SO8OO in southeastern Poland. 371 related FT8 messages, 53 CQ messages, observed on 20m, 10m, across 35 UTC dates. Heard between 2026-05-26 and 2026-08-23.

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.

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Overview

371
Related messages
53
CQ messages
35
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-26
Last seen: 2026-08-23 10:03 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 UTCBandJR5MJS S/NCounterpartCounterpart S/NMsgsCapture
08-14 22:05 20m - / +4 LZ5UY -14 / - 2 ✓ Closing fragment
08-12 21:42 20m - / - PD0OTH -14 / - 4 Partial capture
08-12 21:38 20m - / -12 PA2EW -4 / - 3 ✓ Closing fragment
08-12 21:35 20m - / - PC1V -16 / - 2 Partial capture
08-11 11:16 20m - / - EA3CUU -16 / - 2 Partial capture
08-11 11:12 20m - / - PD0RDD -20 / - 4 Partial capture
08-11 10:53 20m - / - M0MLL -11 / - 4 Partial capture
08-11 10:47 20m - / - DL4JC -16 / - 2 Partial capture
08-11 10:46 20m - / - DL1R -3 / - 8 Partial capture
08-10 21:33 20m - / -4 DF5AH -1 / - 2 ✓ Closing fragment
08-04 21:23 20m - / - EB4DMH -11 / - 3 Partial capture
08-04 11:43 20m - / - DM5WGL -10 / - 8 Partial capture
08-04 11:43 20m - / -15 IU3WNU -10 / - 2 Partial capture
08-04 10:46 20m - / - F1PSX -18 / - 4 Partial capture
08-04 10:44 20m - / -16 RU3QR -21 / - 4 Partial capture
08-03 11:32 20m - / - UT9EO -13 / - 5 Partial capture
08-03 11:31 20m - / - DK3HV -11 / - 2 Partial capture
08-02 21:10 20m - / -10 F4JDM -8 / - 3 ✓ Closing fragment
07-27 21:16 20m -11 / - DG7ABL - / -13 2 ✓ Closing fragment
07-27 21:13 20m -10 / - 4X1ZQ - / -10 3 Partial capture
07-27 21:11 20m - / -4 IZ8EYN -11 / - 5 Partial capture
07-27 21:01 20m -11 / +9 EI7LK -12 / -25 17 ✓ Full exchange observed
07-22 21:20 20m - / - DL1R -8 / - 2 Partial capture
07-22 21:14 20m - / - EA5FQ -6 / - 3 Partial capture
07-22 11:07 20m - / - OE3KLU +4 / - 2 Partial capture
07-22 11:07 20m - / - DG5PW -15 / - 3 Partial capture
07-22 11:01 20m - / - DG5PW -14 / - 2 Partial capture
07-22 10:50 20m - / -14 OE3KLU +7 / - 3 Partial capture
07-18 11:21 20m - / - R6LQU -12 / - 2 ✓ Closing fragment
07-13 11:53 20m - / +1 DL6EL -5 / - 3 ✓ Closing fragment
07-13 11:48 20m - / - F4HJN -14 / - 2 Partial capture
07-13 11:43 20m - / -16 OZ9FF -17 / - 3 Partial capture
07-13 11:30 20m - / -18 OZ9FF -17 / - 4 Partial capture
07-13 11:27 20m - / -18 OZ9FF -18 / - 3 Partial capture
07-13 11:26 20m - / -13 DL3OCF +3 / - 2 Partial capture
07-13 11:24 20m - / - RD6OZ -22 / - 2 Partial capture
07-13 11:14 20m - / -17 RC5F -17 / - 4 ✓ Closing fragment
07-13 11:11 20m - / - UA3ZZ -16 / - 4 ✓ Closing fragment
07-13 10:54 20m - / -12 I0KNQ -9 / - 5 Partial capture
07-13 10:54 20m - / - PA0GDL -16 / - 2 Partial capture
07-13 10:52 20m - / - PD2JAM -13 / - 3 Partial capture
07-13 10:51 20m - / - EA3CUU -20 / - 2 Partial capture
07-13 10:47 20m - / -18 PE1LYU -11 / - 7 Partial capture
07-13 10:27 20m - / -16 DL8DCM -13 / - 9 ✓ Closing fragment
07-12 11:24 20m - / -9 UA6UEU +1 / - 2 Partial capture
07-12 11:19 20m - / -15 F4FSY -22 / - 2 Partial capture
07-06 21:16 20m - / - DL1R +4 / - 7 Partial capture
07-02 23:06 20m - / -5 CT1EEX -2 / - 3 ✓ Closing fragment
06-24 11:42 20m - / - RA6OB -10 / - 4 Partial capture
06-24 11:41 20m - / - IK4LZH +3 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
213630 -15 1282  JR5MJS PC1V JO22
213800 -20 1489  JR5MJS OZ7DR -16
213800  -4 2289  JR5MJS PA2EW JO22 (x3)
214000 -16 1282  JR5MJS PC1V JO22
214200 -11 1680  JR5MJS PD0OTH JO21 (x4)
215430 -11 2351  JR5MJS EA8DHH RR73
220530 -14 1411  JR5MJS LZ5UY +04 (x2)
205815 -14 2588  JR5MJS M0HJJ R-14
120330  -2  869  JR5MJS EX7DY -13
10m
UTC    dB Audio  Message
105930  -5 1393  JR5MJS 7Q3AM +04

Decoder S/N history by band

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