IV3KZF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN66

Receiver-side FT8 activity involving IV3KZF, decoded by SO8OO in southeastern Poland. 440 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-06 and 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 440 FT8 messages attributed to IV3KZF as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 10 m (14%) and 40 m (8%). The busiest six-hour window was 12:00-18:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was +7.1 dB.

Overview

440

Messages attributed

UTC dates decoded

Active 15-min windows

+7.1 dB

Estimated median S/N

Bands

40m · 33 20m · 345 10m · 62

First attributed message: 2026-06-06
Last attributed message: 2026-08-31 13:38 UTC

Observed FT8 message patterns

Attributed sample: 440 messages
Active dates: 21 UTC dates
Estimated median S/N: +7.1 dB
Estimated 10th-90th percentile: -7 to +18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 411.

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 IV3KZF in decoded directed-looking exchanges:

7Q5BM · Malawi A92GE · Bahrain DL3MIB · Fed. Rep. of Germany ER5DX · Moldova EW3DF · Belarus IK1MNJ · Italy R2FC · Kaliningrad SV1QEW · Greece VJ6X · Australia VK5BRG · Australia YB0KTT · Indonesia YO4DEQ · Romania

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 IV3KZF

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: JN66 · 248 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 755 km (approx.)
Last such locator decoded: 2026-08-31 13:38 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	IV3KZF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 13:32	20m	-14 / -6	G1HJW	-11 / -15	4	✓ Full exchange observed
08-31 13:24	20m	- / +8	G4YLJ	-14 / -	2	✓ Closing fragment
08-31 13:23	20m	-15 / +5	2E0MBH	-8 / +1	5	✓ Full exchange observed
08-31 13:12	20m	-4 / -	JA0FOX	- / -16	2	✓ Closing fragment
08-31 13:09	20m	-3 / -	JJ5NFT	- / -	3	✓ Closing fragment
08-30 17:36	20m	- / -4	Z31PM	-14 / -	2	✓ Closing fragment
08-30 17:34	20m	- / -	TA1MB	+6 / -	2	✓ Closing fragment
08-29 08:18	10m	-3 / -	YO4DEQ	- / -	3	✓ Closing fragment
08-29 08:14	10m	+7 / -	EW3DF	- / -12	3	✓ Closing fragment
08-29 08:12	10m	+4 / -	Z33Z	- / -	2	Partial capture
08-29 08:11	10m	-8 / -	SV1QEW	- / -8	3	✓ Closing fragment
08-29 08:08	10m	+5 / -	DJ9WH	- / -	3	Partial capture
08-29 08:07	10m	+6 / -12	IK1MNJ	+5 / -7	5	✓ Full exchange observed
08-29 08:02	10m	+10 / -	ER5DX	- / -4	3	✓ Closing fragment
08-29 08:01	10m	+10 / -	<...>	- / -	2	Partial capture
08-29 07:58	10m	-2 / -	TA3LY	- / -3	2	Partial capture
08-29 07:57	10m	+6 / -	DL3MIB	- / -15	2	✓ Closing fragment
08-29 07:54	10m	+10 / -	A92GE	- / -5	6	✓ Closing fragment
08-29 07:53	10m	+6 / -	VJ6X	- / -20	2	✓ Closing fragment
08-29 07:50	10m	+10 / -	VK5BRG	- / -16	4	✓ Closing fragment
08-29 07:32	20m	+24 / -	VK4XK	- / -	2	Partial capture
08-29 07:30	20m	+20 / -	VK3DHI	- / -	3	Partial capture
08-29 07:22	20m	+19 / -	ZL3BT	- / -	2	Partial capture
08-29 07:19	20m	+21 / -	YS1GMV	- / -	3	Partial capture
08-29 07:18	20m	+22 / -	VK3EVE	- / -21	2	✓ Closing fragment
08-29 07:16	20m	+21 / -	VK6DW	- / -19	3	✓ Closing fragment
08-29 07:10	20m	+26 / -	VK4NBX	- / -	4	Partial capture
08-29 07:06	20m	+12 / -9	EA8WU	-9 / -4	6	✓ Full exchange observed
08-26 19:05	20m	- / -4	UA6YW	+13 / -	5	✓ Closing fragment
08-03 15:56	20m	+1 / -	JA8ECS	- / -	3	Partial capture
08-03 15:53	20m	-8 / -	IZ3ZPO	+5 / -17	4	✓ Closing observed
08-03 15:47	20m	-1 / -	JK1KSB	- / -	3	✓ Closing fragment
08-03 15:46	20m	-2 / -	TA2ZLM	- / -14	3	✓ Closing fragment
07-31 19:52	20m	-6 / -	TA3XEE	-23 / -	2	✓ Closing observed
07-31 19:46	20m	+5 / -	D2ACE	- / -14	6	✓ Closing fragment
07-31 19:40	20m	+2 / -	A71YY	- / -10	3	✓ Closing fragment
07-30 14:46	20m	-6 / -	SV8JVM	- / -2	2	✓ Closing fragment
07-30 14:30	20m	-6 / -	LZ1AAW	- / -	2	Partial capture
07-30 14:28	20m	-3 / -	CE3SPR	- / -	2	Partial capture
07-30 14:26	20m	+2 / -	A41MC	- / -16	4	✓ Closing fragment
07-28 15:46	20m	- / -	M7INZ	-14 / -	2	✓ Closing fragment
07-16 09:30	20m	+8 / -	UT7UJ	- / +1	2	✓ Closing fragment
07-16 09:26	20m	+3 / -	ON1DGN	- / -	3	Partial capture
07-16 09:24	20m	+7 / -	SQ8AA	- / -5	4	✓ Closing fragment
07-16 09:22	20m	+6 / -	PB1JB	- / -16	3	✓ Closing fragment
07-16 09:21	20m	+4 / -	LB4CD	- / -8	3	✓ Closing fragment
07-16 09:17	20m	+5 / -	PD2BS	- / -4	5	Partial capture
07-16 08:48	20m	+5 / -	DH5BM	- / -	3	Partial capture
07-16 08:46	20m	-1 / -	LA2US	- / -5	3	✓ Closing fragment
07-16 08:44	20m	+1 / -	NL8F	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
131215  -4  506  JA0FOX IV3KZF -16 (x2)
132300 -15  615  2E0MBH IV3KZF JN66
132315  -7 1222  IV3KZF 2E0MBH +05
132330 -14  616  2E0MBH IV3KZF R+01
132345  -9 1222  IV3KZF 2E0MBH RR73
132400 -16  616  2E0MBH IV3KZF 73
132445 -15 1295  IV3KZF G4YLJ +08 (x2)
133245 -12 2025  IV3KZF G1HJW -06
133300 -17  521  G1HJW IV3KZF R-15
133315 -10 2025  IV3KZF G1HJW RR73
133330 -12  521  G1HJW IV3KZF 73
133830 -17  521  M7MOK IV3KZF JN66
134045 -13 1027  IV3KZF F1RCQ JN19

10m

UTC    dB Audio  Message
080830  +8  519  DJ9WH IV3KZF JN66 (x3)
081115  -8  519  SV1QEW IV3KZF JN66 (x3)
081245  +1  519  Z33Z IV3KZF JN66 (x2)
081415 +12  519  EW3DF IV3KZF JN66 (x3)
081815  -4  519  YO4DEQ IV3KZF JN66 (x3)
082115  +2  519  OM3SX IV3KZF JN66

40m

UTC    dB Audio  Message
045315  -8  383  MW9LQA IV3KZF JN66 (x2)
045445  -9  383  CQ IV3KZF JN66
045545  -4  383  CR2WWA IV3KZF R-24 (x4)
050415  -7  383  <...> IV3KZF JN66 (x2)
050845  -9  383  7S7H IV3KZF JN66 (x2)
051630 -10  383  F5BRF IV3KZF JN66 (x2)
153130  -8  485  YL3RS IV3KZF JN66 (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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