ZB2JK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Gibraltar Most frequent locator attributed to this token: IM76

Receiver-side FT8 activity involving ZB2JK, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-01.

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 23 FT8 messages attributed to ZB2JK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 20 m (26%) and 60 m (17%). Most decodes (70%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (74%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

60m · 4 40m · 10 20m · 6 10m · 3

First attributed message: 2026-06-13
Last attributed message: 2026-10-01 23:03 UTC

Observed FT8 message patterns

Attributed sample: 23 messages
Active dates: 5 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -21 to -13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 6, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with ZB2JK in decoded directed-looking exchanges:

EA6TU · Balearic Islands EI2JD · Ireland F4MLW · France F4MXT/P · France JH1IFS · Japan LA7WCA · Norway OH7MA · Finland OZ1KZX · Denmark YO4NF · Romania CT1EKY · Portugal DG1CMZ · Fed. Rep. of Germany EA3DIX · Spain

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 ZB2JK

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: IM76 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,613 km (approx.)
Last such locator decoded: 2026-10-01 22:55 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	ZB2JK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-02 06:58	40m	- / -23	F4MXT/P	-14 / -	2	✓ Closing fragment
10-02 06:53	40m	- / -	F4MXT/P	-6 / -	2	Partial capture
10-02 06:50	40m	- / -14	F4MLW	-14 / -	3	✓ Closing fragment
10-02 06:50	40m	- / -	SP1JQJ	-4 / -	3	Partial capture
10-01 23:00	40m	- / -21	LA7WCA	-9 / -	3	✓ Closing fragment
10-01 22:56	40m	- / -	PA3KUS	-8 / -	3	Partial capture
10-01 22:56	40m	- / -	LA7WCA	-15 / -	3	Partial capture
10-01 22:51	60m	- / -	OH4TQ	+2 / -	2	Partial capture
10-01 22:50	60m	- / -	OE9RWH	-9 / -	2	Partial capture
10-01 22:50	60m	- / -15	ON1JP	-22 / -	2	Partial capture
10-01 22:48	60m	- / -	OH2NAG	-3 / -	6	Partial capture
10-01 22:43	60m	-19 / -17	ON7KEI	-17 / -20	4	Partial capture
10-01 22:43	60m	-18 / -11	OH6RX	+9 / -	14	✓ Closing observed
10-01 22:39	60m	- / -13	EA3DIX	-5 / -	3	✓ Closing fragment
10-01 22:39	60m	-18 / -19	LB9VH	-17 / -	6	✓ Closing observed
10-01 22:39	60m	- / -	OH1LA	-16 / -	3	Partial capture
10-01 22:39	60m	- / -	ON7KEI	-16 / -	2	Partial capture
10-01 22:36	60m	-18 / -5	ON6ZK	-11 / -	6	✓ Closing observed
10-01 22:35	60m	- / -6	F5MYK	-11 / -	3	✓ Closing fragment
10-01 22:32	60m	- / -11	PE3T	0 / -	3	✓ Closing fragment
10-01 22:32	60m	- / -	LY2HM	-5 / -	3	Partial capture
10-01 22:16	40m	- / -	9A3K	-12 / -	2	Partial capture
10-01 22:13	40m	-18 / -6	OH7MA	+6 / +5	7	✓ Full exchange observed
10-01 22:13	40m	-14 / -15	EI2JD	-8 / -	3	✓ Closing observed
10-01 22:13	40m	- / -17	YO4NF	-8 / -	2	✓ Closing fragment
09-30 21:48	80m	- / -	IS0BOZ	-15 / -	4	Partial capture
09-30 21:42	80m	- / -	EB5AFK	-16 / -	8	Partial capture
09-30 21:41	60m	- / -	F/PA2JWN	-4 / -	2	Partial capture
09-30 21:40	60m	- / -	DL1IP	-2 / -	4	Partial capture
09-30 21:38	60m	- / -18	YO2MAX	-10 / -	3	✓ Closing fragment
09-30 21:34	60m	- / -12	G3SBP	-11 / -	4	Partial capture
09-30 21:34	60m	- / -	EA3OR	-13 / -	7	Partial capture
09-30 21:33	60m	- / -14	DG1CMZ	+9 / -	3	✓ Closing fragment
09-30 21:33	60m	- / -10	CT1EKY	-9 / -	5	✓ Closing fragment
09-30 21:30	60m	- / -19	IS0BOZ	-3 / -	4	✓ Closing fragment
09-30 21:29	60m	- / -16	HA3PG	-10 / -	5	Partial capture
09-30 21:29	60m	- / -11	LA6YEA	-6 / -	3	✓ Closing fragment
09-30 21:23	40m	- / -	9A3K	-15 / -	6	Partial capture
09-30 21:18	40m	- / -	JA4FSH	-5 / -	3	Partial capture
09-30 21:18	40m	- / -20	DL9AN	0 / -	2	Partial capture
09-30 21:17	40m	- / -19	RW6HPS	-10 / -	2	Partial capture
09-30 21:16	40m	- / -	I0WTD	+8 / -	7	Partial capture
09-30 21:13	40m	- / -	F4HAB	-9 / -	8	Partial capture
09-30 21:12	40m	- / -	JF0CSK	-14 / -	2	Partial capture
09-30 21:12	40m	-15 / -	JH6ETS	- / -19	3	Partial capture
09-30 21:10	40m	- / -	9A3K	-11 / -	12	Partial capture
09-30 21:10	40m	- / -	IK6HRB	+14 / -	7	Partial capture
09-30 21:09	40m	- / -15	JH1IFS	-8 / -	4	✓ Closing fragment
09-30 21:07	40m	- / -7	EA6TU	-13 / -	5	✓ Closing fragment
09-30 21:07	40m	- / -14	SV3GKU	+2 / -	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
230000 -12 1524  ZB2JK LA7WCA JP41 (x3)
230315 -18 2312  DL1AUW ZB2JK -17
065030  +0 2837  ZB2JK SP1JQJ JO73
065030 -15 2316  ZB2JK F4MLW JN25
065100  -7 2266  ZB2JK SP1JQJ JO73
065100 -12 2316  ZB2JK F4MLW R-14 (x2)
065200  -6 2315  ZB2JK SP1JQJ JO73
065300  -7 1287  ZB2JK F4MXT/P JN25
065300 -21 1691  ZB2JK F1PFU JN26
065330  -6 1451  ZB2JK F4MXT/P JN25 (x3)

60m

UTC    dB Audio  Message
224830  -4 2197  ZB2JK LY2HM KO15
224900 +12 2283  ZB2JK OH6RX -11
224900  -3 2430  ZB2JK OH2NAG KP20
224930 +10 2282  ZB2JK OH6RX RR73
224930  -5 2430  ZB2JK OH2NAG KP20
224945 -18 2422  OH6RX ZB2JK 73
225000  +0 2430  ZB2JK OH2NAG KP20
225030 -24 1519  ZB2JK ON1JP -15
225030  -2 2430  ZB2JK OH2NAG KP20
225030 -10 1145  ZB2JK OE9RWH JN57
225100  +3 2734  ZB2JK OH4TQ KP21
225100  -6 2430  ZB2JK OH2NAG KP20
225100  -8 1145  ZB2JK OE9RWH JN57
225130  +2 2734  ZB2JK OH4TQ KP21
225230 -21 1520  ZB2JK ON1JP -15

80m

UTC    dB Audio  Message
214215 -11 1981  ZB2JK EB5AFK IM98 (x8)
214745  -8  226  ZB2JK G0ORC -24
214815 -15 1129  ZB2JK IS0BOZ JM49 (x4)

20m

UTC    dB Audio  Message
184630  +1 1096  ZB2JK M7DBB IO92 (x7)
192300  -1 2012  ZB2JK F5HMS JO10 (x8)

10m

UTC    dB Audio  Message
172900 -21 1934  SV2CLJ ZB2JK IM76 (x3)
173145  -4 2025  ZB2JK RA6BL KN95
173145 -15  980  ZB2JK R6FMF -15
173215  +1 2025  ZB2JK RA6BL KN95 (x2)
173315 -20 1806  ZB2JK F4EOC JN39
173345  -6 1981  ZB2JK RA6BL KN95
173545 -24 1924  ZB2JK IU7VOL JN81 (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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