JA5VMQ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM74

Receiver-side FT8 activity involving JA5VMQ, decoded by SO8OO in southeastern Poland. 19 related FT8 messages, observed on 20m, across 5 UTC dates. Heard between 2026-05-07 and 2026-07-15.

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

19
Related messages
0
CQ messages
5
UTC dates heard
-2 dB
Mean decoder S/N

Bands

20m
First seen: 2026-05-07
Last seen: 2026-07-15 15:26 UTC

Activity Heatmap

Locator transmitted by JA5VMQ

Approximate centre of PM74, decoded 2026-07-15 17:33 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandJA5VMQ S/NCounterpartCounterpart S/NMsgsCapture
07-15 17:31 20m -12 / - ZC4RH - / - 4 Partial capture
07-15 17:24 20m -14 / - ZC4RH - / - 2 Partial capture
07-15 17:18 20m - / - EA7ALL +1 / - 3 Partial capture
07-15 16:24 20m - / -13 R6SS +2 / - 2 Partial capture
07-14 21:20 20m - / -5 EA1B -8 / - 2 ✓ Closing fragment
07-14 21:17 20m - / -16 EA3EDU -18 / - 2 ✓ Closing fragment
07-14 21:16 20m - / -3 EA8UP -3 / - 2 ✓ Closing fragment
07-13 21:13 20m - / -13 ON6AA +4 / - 3 ✓ Closing fragment
06-18 22:10 20m -4 / - BG2FYO - / - 2 ✓ Closing fragment
06-18 22:09 20m 0 / - YO4NF - / -7 2 ✓ Closing fragment
06-18 22:07 20m -3 / - OH1TM - / -8 4 ✓ Closing fragment
06-18 21:53 20m -11 / - F1POK - / - 3 Partial capture
06-18 21:46 20m -16 / -17 SV1EAG -9 / -12 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
211815 -17 1536  JA5VMQ EA3EDU 73
212045  -9 1639  JA5VMQ EA1B R-05 (x2)
162400  +1 3026  JA5VMQ R6SS -13 (x2)
171830  +1 2766  JA5VMQ EA7ALL IM88 (x3)
172415 -15 3075  ZC4RH JA5VMQ PM74 (x2)
172630 -12  696  JA5VMQ GI7NKK IO74
173115 -12 3026  ZC4RH JA5VMQ PM74 (x4)

Decoder S/N history by band

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