VK4CZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Australia

Receiver-side FT8 activity involving VK4CZ, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-31.

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 1 FT8 messages attributed to VK4CZ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

20m · 1

First attributed message: 2026-08-31
Last attributed message: 2026-08-31 07:54 UTC

Observed FT8 message patterns

Attributed sample: 1 messages
Active dates: 1 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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 VK4CZ in decoded directed-looking exchanges:

CR7BRV · Portugal HB9OAB · Switzerland IT9ZIR · Sicily IU2IKT · Italy IW3FVQ · Italy LZ1QV · Bulgaria SV5ADM · Dodecanese SX0W · Greece TM2WWA · France UA6HBJ · European Russia F4EMG · France G3RTE · England

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	VK4CZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 07:36	40m	- / -13	F4EMG	-1 / -	3	✓ Closing fragment
09-11 07:35	40m	- / -15	G3RTE	-8 / -	2	✓ Closing fragment
09-11 07:33	40m	- / -	IK2ZJR	-3 / -	4	Partial capture
09-11 07:32	40m	- / -2	PI4DX	-4 / -	2	✓ Closing fragment
09-11 07:31	40m	- / -	F4EMG	-8 / -	3	Partial capture
08-31 08:01	20m	- / -	CT1FIU	-10 / -	3	Partial capture
08-31 07:55	20m	- / -	HB9TIH	-18 / -	5	Partial capture
08-18 08:05	10m	- / -11	UA3QQG	-11 / -	6	Partial capture
08-18 08:02	10m	- / -	LZ1GC	-14 / -	2	Partial capture
08-18 08:02	10m	- / -6	LZ1QV	-8 / -	4	✓ Closing fragment
08-18 07:38	10m	- / -2	IU2IKT	-12 / -	5	✓ Closing fragment
08-18 07:38	10m	- / -10	IZ0MIO	-19 / -	3	Partial capture
08-18 07:33	10m	- / -	IZ0MIO	-15 / -	4	Partial capture
08-18 07:31	10m	- / -4	UA6HBJ	-6 / -	5	✓ Closing fragment
08-02 21:29	10m	- / -4	SV5ADM	-14 / -	2	✓ Closing fragment
07-20 08:03	20m	- / -	9A7KWS	-13 / -	6	Partial capture
07-18 06:42	10m	- / -	UR4LBG	-14 / -	2	Partial capture
06-29 21:41	10m	- / -18	IW3FVQ	-5 / -	2	Partial capture
06-29 21:21	10m	- / -6	SX0W	-10 / -	2	✓ Closing fragment
06-29 07:57	10m	- / -12	CR2WWA	-2 / -	2	Partial capture
06-25 21:26	10m	- / -9	HB9OAB	-2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
073130  -6 2280  VK4CZ F4EMG JO00
073200  -4 1085  VK4CZ PI4DX R-02
073200  -9 2280  VK4CZ F4EMG JO00
073230  -3 1085  VK4CZ PI4DX 73
073230  -8 2280  VK4CZ F4EMG JO00
073330  -2 2417  VK4CZ IK2ZJR JN45 (x4)
073545  -7 2048  VK4CZ G3RTE R-15 (x2)
073615  -3 2533  VK4CZ F4EMG JO00 (x3)
073915 -14 2467  VK4CZ GJ0KYZ IN89

20m

UTC    dB Audio  Message
080430 -13 2504  VK4CZ 9A7KWS JN95 (x5)
075445 -18 2657  RI1FJL VK4CZ -10
075530 -19 2456  VK4CZ HB9TIH JN36 (x4)
075700 -10 1301  VK4CZ CT1FIU IN50
075730 -20 2457  VK4CZ HB9TIH JN36
080130 -11 1301  VK4CZ CT1FIU IN50 (x3)

10m

UTC    dB Audio  Message
074030 -22 1874  VK4CZ IZ0MIO R-10
074130 -17  818  VK4CZ IU2IKT JN45
080245  -6 2299  VK4CZ LZ1QV KN32
080245 -14 2473  VK4CZ LZ1GC KN22
080315  -9 2299  VK4CZ LZ1QV KN32
080315 -15 2473  VK4CZ LZ1GC R+15
080415  -8 2298  VK4CZ LZ1QV R-06 (x2)
080515 -14 2396  VK4CZ UA3QQG -11
080515  -8 2472  VK4CZ IU8ADS R-09
080545 -15 2396  VK4CZ UA3QQG -11 (x5)

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