JA0GCI — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM96

Receiver-side FT8 activity involving JA0GCI, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-10-12.

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 20 FT8 messages attributed to JA0GCI as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 20 m (5%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (60%); the estimated median was -13 dB.

Overview

20
Messages attributed
4
UTC dates decoded
7
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 19 20m · 1
First attributed message: 2026-06-18
Last attributed message: 2026-10-12 21:06 UTC

Observed FT8 message patterns

Attributed sample
20 messages
Active dates
4 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 3.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JA0GCI in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JA0GCI

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
PM96 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,603 km (approx.)
Last such locator decoded
2026-10-12 21:06 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 UTCBandJA0GCI S/NCounterpartCounterpart S/NMsgsCapture
11-05 21:32 80m - / -22 IK5SRB -1 / - 2 Partial capture
11-05 21:26 80m - / -18 IT9EJW -2 / - 2 Partial capture
11-05 21:01 80m - / -16 YO9HP 0 / - 2 ✓ Closing fragment
11-05 20:59 80m - / -18 OE8DDX +12 / - 2 ✓ Closing fragment
11-04 19:57 80m - / -14 UK8AEA -21 / - 2 ✓ Closing fragment
11-01 20:33 160m - / -14 SV8QG -15 / - 4 ✓ Closing fragment
11-01 20:13 160m - / -23 LA9GX +1 / - 3 ✓ Closing fragment
11-01 18:57 160m - / - SV8QG -16 / - 2 Partial capture
10-31 20:26 160m - / - R3LA +6 / - 2 Partial capture
10-31 20:25 160m - / -18 UW5ZM 0 / - 2 ✓ Closing fragment
10-16 20:15 160m - / -15 4J3DJ -6 / - 2 ✓ Closing fragment
10-16 19:04 80m - / - YO4CPO +4 / - 2 Partial capture
10-13 18:39 80m - / -25 DA1TT +8 / - 3 ✓ Closing fragment
10-12 21:06 80m -20 / -13 OT7K +16 / - 3 ✓ Closing observed
10-12 21:02 80m -14 / - ER5DX - / -14 4 ✓ Closing fragment
10-12 20:57 80m -6 / - UF5F -5 / -7 3 ✓ Closing observed
10-12 20:50 80m - / -21 RK6OQ -11 / - 3 ✓ Closing fragment
10-12 20:49 80m -13 / -11 SQ9BC -6 / - 4 ✓ Closing observed
10-12 20:47 80m -10 / -13 LY1DY 0 / -13 6 ✓ Full exchange observed
10-12 19:13 80m - / -11 R1IO -4 / - 2 ✓ Closing fragment
10-12 19:11 80m - / -13 UD8D 0 / - 2 ✓ Closing fragment
10-10 13:57 40m - / -19 UA4FKT 0 / - 4 ✓ Closing fragment
10-05 17:02 160m - / - RA3ZK -1 / - 2 Partial capture
10-05 16:44 160m - / -21 LZ2IP +18 / - 9 ✓ Closing fragment
10-04 15:47 40m - / -16 R7DX -6 / - 2 Partial capture
10-02 18:50 160m - / -20 UW5ZM +4 / - 2 ✓ Closing fragment
10-01 20:38 40m - / - RD3FY -6 / - 3 Partial capture
09-30 21:09 40m - / -16 IK4DCW +11 / - 2 ✓ Closing fragment
09-29 21:02 80m - / -14 UX5UO +11 / - 2 ✓ Closing fragment
09-29 20:35 160m - / -15 R6JAG -18 / - 3 ✓ Closing fragment
09-29 20:04 160m - / -24 SM5A +4 / - 2 Partial capture
09-29 19:48 160m - / - YU1LD -21 / - 3 Partial capture
09-29 19:47 160m - / -22 SP7MOC +11 / - 8 ✓ Closing fragment
09-29 19:09 40m - / - HB9ELE +10 / - 2 Partial capture
09-29 19:08 40m - / -15 IZ5IMD +8 / - 2 ✓ Closing fragment
09-29 19:07 40m - / -21 SV1BLD +5 / - 3 Partial capture
09-28 19:43 40m - / -19 SP9LCW -4 / - 3 ✓ Closing fragment
09-28 18:06 40m - / - EU7SV +4 / - 2 Partial capture
09-28 18:04 40m - / -19 9A3MRN +7 / - 3 ✓ Closing fragment
09-27 21:20 80m - / -24 OH2BGD +4 / - 5 Partial capture
09-27 20:59 80m - / -6 SP2HNF +22 / - 3 ✓ Closing fragment
09-27 20:51 80m -16 / -16 DJ7M +12 / - 3 ✓ Closing observed
09-26 20:46 80m - / - RO2X 0 / - 6 Partial capture
09-25 16:38 40m - / -19 OH7UE -13 / - 2 ✓ Closing fragment
09-25 15:59 40m - / -15 UD8D -6 / - 2 ✓ Closing fragment
09-23 20:01 160m - / -19 SP2HNF +1 / - 3 Partial capture
09-21 20:50 80m - / -20 SV1DZB -8 / - 3 ✓ Closing fragment
09-21 20:49 80m - / -16 DL7VEE +19 / - 2 ✓ Closing fragment
09-21 20:37 80m - / -16 ON6AA +2 / - 2 ✓ Closing fragment
09-21 20:25 80m - / -14 LX1JH +22 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
183930 +10 1339  JA0GCI DA1TT -25 (x2)
190400  +3 2197  JA0GCI YO4CPO KN44 (x2)
195715 -20 2144  JA0GCI UK8AEA -14 (x2)
205900 +10 2554  JA0GCI OE8DDX -18 (x2)
210130  +0 2156  JA0GCI YO9HP -16 (x2)
212630  -4  562  JA0GCI IT9EJW -18 (x2)
213200  +2 1646  JA0GCI IK5SRB -22 (x2)
214900 -12 1990  JA0GCI SV2AEL RR73
160m 
UTC    dB Audio  Message
202545  -1  255  JA0GCI UW5ZM RR73
202645  +8 2049  JA0GCI R3LA KO64 (x2)
185715 -23 1943  JA0GCI SV8QG KM39 (x3)
192345  -4 2624  JA0GCI OH0Z RR73
201345  +3 2094  JA0GCI LA9GX -23 (x3)
203315 -14 1967  JA0GCI SV8QG -14 (x4)
201415  +1 2016  JA0GCI UA4CC RR73
40m 
UTC    dB Audio  Message
190845  +9 2127  JA0GCI IZ5IMD RR73
190900  +8 2481  JA0GCI SV1BLD -21
190915 +14  695  JA0GCI HB9ELE JN47 (x2)
210930 +10 1663  JA0GCI IK4DCW -16 (x2)
203845  -5 2741  JA0GCI RD3FY KO85 (x3)
154745  -8 1682  JA0GCI R7DX KN84 (x2)
135715  +1 2476  JA0GCI UA4FKT LO23 (x4)
20m 
UTC    dB Audio  Message
055730 -16 1660  JA0GCI UF4S RR73
10m 
UTC    dB Audio  Message
113730 -24 1693  JA0GCI F1SZC RR73 (x2)
114130  -7 1288  JA0GCI ON4UW JO20 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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