JG0CQK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM97

Receiver-side FT8 activity involving JG0CQK, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 160m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-03 and 2026-09-15.

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 JG0CQK as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 160 m (17%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 1 40m · 5

First attributed message: 2026-09-03
Last attributed message: 2026-09-15 17:00 UTC

Observed FT8 message patterns

Attributed sample: 6 messages
Active dates: 2 UTC dates
Estimated median S/N: -10 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 4, 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).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JG0CQK in decoded directed-looking exchanges:

DL3IAE · Fed. Rep. of Germany G4IRN · England HB9CXZ · Switzerland

Most frequent locator attributed to JG0CQK

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: PM97 · 2 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,513 km (approx.)
Last such locator decoded: 2026-09-15 16:58 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	JG0CQK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 19:42	160m	- / -	UA4PPQ	-6 / -	2	Partial capture
09-21 19:40	160m	- / -19	DL3IAE	+8 / -	4	✓ Closing fragment
09-21 19:40	160m	- / +1	F1PBZ	-10 / -	3	Partial capture
09-21 19:39	160m	- / -16	G4IRN	0 / -	2	✓ Closing fragment
09-21 19:38	160m	- / -	UW2ZO	+13 / -	2	Partial capture
09-21 19:29	160m	- / -	RA8AO	-14 / -	2	Partial capture
09-21 19:25	160m	- / -	SP5GMM	+12 / -	5	Partial capture
09-21 19:24	160m	- / -9	HB9CXZ	-5 / -	9	✓ Closing fragment
09-15 16:57	40m	-10 / -	RI1FJZ	- / -17	5	Partial capture
09-06 19:16	80m	- / -18	EY8BL	-14 / -	3	Partial capture
09-06 18:58	80m	- / -15	R3BDQ	+7 / -	2	Partial capture
09-06 18:55	80m	- / -	RO2X	+6 / -	5	Partial capture
09-06 18:52	80m	- / -	IV3VFR	+14 / -	2	Partial capture
09-06 18:48	80m	- / -	RO2X	+2 / -	4	Partial capture
09-03 18:37	160m	- / -12	UB6OAJ	-13 / -	3	Partial capture
09-03 18:36	160m	- / -	IK4PLW	+4 / -	5	Partial capture
08-07 19:48	80m	- / -	UA4FKT	+7 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
192945 -12 1589  JG0CQK RA8AO MO06
193815 +15  854  JG0CQK UW2ZO KN67 (x2)
193945  +0  494  JG0CQK G4IRN -16 (x2)
194015  -7 2466  JG0CQK F1PBZ +01 (x2)
194045  +7 2525  JG0CQK DL3IAE JN49
194115 -13  299  JG0CQK SM6CWP JO57
194115 -11 2466  JG0CQK F1PBZ +01
194115 +13 2526  JG0CQK DL3IAE JN49 (x2)
194215  -7 2104  JG0CQK UA4PPQ LO54
194215  +3 2526  JG0CQK DL3IAE 73
194245  -5 2104  JG0CQK UA4PPQ LO54

40m

UTC    dB Audio  Message
165745  -8 2922  RI1FJZ JG0CQK PM97 (x5)

80m

UTC    dB Audio  Message
185045  +6 2420  JG0CQK RO2X KO74 (x3)
185215 +13 2371  JG0CQK IV3VFR JN65 (x2)
185545  +8 2252  JG0CQK RO2X KO74 (x5)
185845  +8 2345  JG0CQK R3BDQ -15 (x2)
191615 -10  670  JG0CQK EY8BL -18 (x3)

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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