JA1TGO — 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: PM95

Receiver-side FT8 activity involving JA1TGO, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-10-30.

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 6 FT8 messages attributed to JA1TGO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (33%) and 80 m (17%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 1 40m · 2 20m · 3

First attributed message: 2026-06-19
Last attributed message: 2026-10-30 14:51 UTC

Observed FT8 message patterns

Attributed sample: 6 messages
Active dates: 3 UTC dates
Estimated median S/N: -18 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 0.

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).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JA1TGO in decoded directed-looking exchanges:

RY3K · European Russia CN8NS · Morocco F5NBU · France 4O4A · Montenegro E73S · Bosnia-Herzegovina LA9GX · Norway LY7M · Lithuania OH2XX · Finland OH4TQ · Finland OH7TV · Finland OH7UE · Finland UA3D · European Russia

Most frequent locator attributed to JA1TGO

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: PM95 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,693 km (approx.)
Last such locator decoded: 2026-10-30 14:51 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 UTC	Band	JA1TGO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 14:51	80m	-20 / -3	LY7M	+12 / -	3	✓ Closing observed
10-30 13:57	80m	- / -	RY3D	+8 / -	2	Partial capture
10-30 13:51	80m	- / -5	OH4TQ	0 / -	2	✓ Closing fragment
10-29 15:14	80m	- / -11	DK7ZT	-11 / -	4	Partial capture
10-29 15:03	80m	- / -	RW9WT	-5 / -	3	Partial capture
10-29 14:52	80m	- / -18	SP5ES	0 / -	5	Partial capture
10-29 14:47	80m	- / -	RO2X	-4 / -	4	Partial capture
10-29 14:47	80m	- / -22	UA3D	+7 / -	2	✓ Closing fragment
10-29 14:41	80m	- / -	RO2X	-6 / -	3	Partial capture
10-29 14:38	80m	- / -	UA3D	0 / -	3	Partial capture
10-29 14:33	80m	- / 0	OH7TV	-14 / -	2	✓ Closing fragment
10-29 14:09	160m	- / -11	RY3K	-6 / -	2	✓ Closing fragment
10-25 20:40	80m	- / -9	4O4A	+18 / -	2	✓ Closing fragment
10-25 14:08	80m	- / -9	OH7UE	-4 / -	2	✓ Closing fragment
09-19 20:43	40m	- / -	DL1HUH	-3 / -	3	Partial capture
09-19 20:41	40m	-18 / -8	F5NBU	+7 / -15	6	✓ Full exchange observed
09-19 20:39	40m	- / -22	CN8NS	-9 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
203930 -12 1886  JA1TGO CN8NS -22 (x4)
204130  +8 2291  JA1TGO F5NBU JN28 (x2)
204215 -18 2290  F5NBU JA1TGO -15
204230  +7 2291  JA1TGO F5NBU R-08
204245 -18 2290  F5NBU JA1TGO RR73
204300  +6 2291  JA1TGO F5NBU 73
204330  +1 2290  JA1TGO DL1HUH JO61 (x3)
204400  -6 1629  JA1TGO RC1C KP50

80m

UTC    dB Audio  Message
150515  -6  418  JA1TGO RW9WT LO64
151345  -2 2385  JA1TGO E73S RR73
151415 -16 1759  JA1TGO DK7ZT -11 (x4)
151645  +1 1574  JA1TGO R7DX KN84
135100  -1 2454  JA1TGO OH4TQ -05 (x2)
135230  +6  300  JA1TGO RY3D KO95 (x3)
145100 -20 2104  LY7M JA1TGO PM95
145245 +12 1955  JA1TGO LY7M -03 (x2)

160m

UTC    dB Audio  Message
140915  -7 2411  JA1TGO RY3K -11 (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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