JA7GLO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JA7GLO, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-08-23.

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 8 FT8 messages attributed to JA7GLO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (75%), followed by 20 m (25%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

8
Messages attributed
3
UTC dates decoded
4
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-07-13
Last attributed message: 2026-08-23 19:47 UTC

Observed FT8 message patterns

Attributed sample
8 messages
Active dates
3 UTC dates
Estimated median S/N
-12 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 1.

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).

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 UTCBandJA7GLO S/NCounterpartCounterpart S/NMsgsCapture
09-18 19:14 80m - / - UX1AA -2 / - 7 Partial capture
09-18 18:33 80m - / -25 ES2AJ +10 / - 2 ✓ Closing fragment
09-17 19:25 80m - / -22 OK2BUZ +20 / - 3 Partial capture
09-12 19:11 80m - / -9 G4CDN -15 / - 2 Partial capture
09-12 19:09 80m - / -12 HA7XL +8 / - 4 ✓ Closing fragment
09-12 19:08 80m - / -26 ON6AA -11 / - 7 Partial capture
09-12 18:50 80m - / - UX1AA -2 / - 4 Partial capture
09-10 20:03 80m - / -11 OK1YQ +16 / - 3 ✓ Closing fragment
09-10 19:45 80m - / - UX1AA -4 / - 4 Partial capture
09-10 19:29 80m - / - UX1AA -6 / - 4 Partial capture
09-10 18:32 80m - / -22 ON4IQ +8 / - 2 ✓ Closing fragment
09-10 18:15 80m - / -11 DJ7M +18 / - 4 ✓ Closing fragment
09-10 18:10 80m - / -14 DJ7M +16 / - 4 ✓ Closing fragment
08-24 19:51 80m - / - SP2HNF +17 / - 4 Partial capture
08-24 19:34 80m - / - UA4FKT +3 / - 3 ✓ Closing fragment
08-24 19:34 80m - / -24 SM5KNV +3 / - 2 ✓ Closing fragment
08-23 19:31 80m -14 / - DL2AMD - / -15 2 Partial capture
08-22 20:21 80m - / - DJ7M +14 / - 5 Partial capture
08-19 18:55 80m - / - RO2X +2 / - 4 Partial capture
08-19 18:48 80m - / -10 IK0SHH +8 / - 5 ✓ Closing fragment
08-19 18:48 80m - / - SP3PLD +15 / - 8 Partial capture
08-18 19:29 80m - / -10 UT5ZC +9 / - 3 ✓ Closing fragment
08-18 19:24 80m - / -13 E73S +13 / - 2 ✓ Closing fragment
08-17 19:54 80m - / -18 LA9GX +13 / - 3 ✓ Closing fragment
08-17 19:47 80m - / - RO2X -5 / - 10 Partial capture
08-12 19:32 80m - / -23 LZ1GC +3 / - 2 ✓ Closing fragment
08-12 19:10 80m - / -18 EU3AA +9 / - 3 ✓ Closing fragment
08-12 18:51 80m -15 / - 4X5MZ - / -25 2 Partial capture
08-12 18:39 80m - / -17 YL3CW +4 / - 2 ✓ Closing fragment
08-12 18:34 80m - / -16 YL3CW +6 / - 3 Partial capture
08-12 18:02 80m - / -22 SV2AEL +8 / - 2 ✓ Closing fragment
08-10 19:30 80m - / - IU6KKW -9 / - 2 Partial capture
08-10 19:25 80m - / - IU6KKW -11 / - 3 Partial capture
08-10 19:21 80m - / -20 OH1MLZ +8 / - 8 ✓ Closing fragment
08-09 18:59 80m - / - UA4FKT +10 / - 2 Partial capture
08-09 18:57 80m - / -14 UR1CCT +16 / - 3 ✓ Closing fragment
08-06 19:37 80m - / -13 SV8JE -3 / - 3 ✓ Closing fragment
08-06 19:23 80m - / -18 S59A +6 / - 2 ✓ Closing fragment
08-06 19:15 80m - / -20 S59A +2 / - 3 Partial capture
08-06 19:09 80m - / - UA4FKT +6 / - 2 Partial capture
08-06 19:08 80m - / -17 SV3DCX -1 / - 2 ✓ Closing fragment
08-06 19:05 80m - / - RO2X -1 / - 2 Partial capture
08-05 19:17 80m - / -20 SV9FBK -6 / - 2 ✓ Closing fragment
08-03 19:16 80m - / -17 A71XX -8 / - 2 ✓ Closing fragment
07-22 18:46 80m - / -18 YO4NT +8 / - 2 ✓ Closing fragment
07-21 18:58 80m - / -13 RY7F -3 / - 3 Partial capture
07-21 18:56 80m - / -16 RX6DA +3 / - 5 ✓ Closing fragment
07-19 19:51 80m - / -18 UT5ZC -1 / - 2 ✓ Closing fragment
07-19 19:32 80m - / -6 OH1CIN 0 / - 2 ✓ Closing fragment
07-13 19:43 20m -11 / - YI1SAL - / +6 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
191100 -19 2009  JA7GLO G4CDN -09
191130 -24 1895  JA7GLO IZ5IMD JN53
191130 -11 2009  JA7GLO G4CDN -09
192500 +18 2692  JA7GLO OK2BUZ R-22 (x3)
183330  +7 1592  JA7GLO ES2AJ -25 (x2)
191430  -7 1998  JA7GLO UX1AA KO70 (x7)
20m
UTC    dB Audio  Message
205730 -13  875  JA7GLO LZ2EW KN13 (x4)
194345 -10 3083  YI1SAL JA7GLO +06 (x2)

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.

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