JK1GKG — 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

Receiver-side FT8 activity involving JK1GKG, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.

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 7 FT8 messages attributed to JK1GKG 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 (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

20m · 7

First attributed message: 2026-06-06
Last attributed message: 2026-08-29 16:16 UTC

Observed FT8 message patterns

Attributed sample: 7 messages
Active dates: 3 UTC dates
Estimated median S/N: -17 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 2, 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 JK1GKG in decoded directed-looking exchanges:

R7DX · European Russia R8LCM · Asiatic Russia SV8DCY · Greece US7KC · Ukraine YO4FPF · Romania OI7AX · Finland UA4FKT · European Russia

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	JK1GKG S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 14:53	40m	- / -	DL7ACN	-12 / -	2	Partial capture
10-23 14:50	40m	- / -	DL7ACN	-10 / -	3	Partial capture
10-23 14:46	40m	- / -26	US7KC	+11 / -	4	✓ Closing fragment
10-23 14:45	40m	- / -10	R3DID	-12 / -	2	Partial capture
10-23 14:40	40m	- / -12	YO4FPF	+4 / -	5	✓ Closing fragment
10-23 14:36	40m	- / -21	SV8DCY	-6 / -	4	✓ Closing fragment
10-23 13:51	80m	- / -1	UA4FKT	0 / -	3	✓ Closing fragment
10-17 16:36	40m	- / -	OK1UG	-7 / -	5	Partial capture
10-16 14:44	80m	- / -18	OI7AX	-4 / -	2	✓ Closing fragment
10-11 16:15	40m	- / -16	SP4BB	+5 / -	14	Partial capture
10-10 15:33	40m	- / -16	LZ936BA	-3 / -	2	Partial capture
10-10 15:28	40m	- / -6	UR5FLN	-8 / -	2	Partial capture
10-10 14:31	40m	- / -14	R7DX	-3 / -	3	✓ Closing fragment
10-02 14:44	40m	- / -	LB7ZG	-6 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
144130  +2 2533  JK1GKG YO4FPF R-10 (x2)
144545 -12 1450  JK1GKG R3DID R-10 (x2)
144645  -8 1450  JK1GKG UT5MB -14
144645  +8 1829  JK1GKG US7KC KO21 (x4)
144915 -13 2203  JK1GKG RA3BQ R-20
145015  -7 1099  JK1GKG DL7ACN JN49 (x5)

80m

UTC    dB Audio  Message
144400  -4 1825  JK1GKG OI7AX R-18 (x2)
135100  +0  425  JK1GKG UA4FKT LO23 (x3)

20m

UTC    dB Audio  Message
161215 -13  615  <...> JK1GKG -17
161615 -21 1933  SV1TRJ JK1GKG -18

CW

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

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee