IZ4AIF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving IZ4AIF, decoded by SO8OO in southeastern Poland. 5,841 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 67 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-19.

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 5,841 FT8 messages attributed to IZ4AIF as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 20 m (34%) and 10 m (6%). The busiest six-hour window was 13:00-19:00 UTC, containing 42% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -6.9 dB.

Overview

5,841

Messages attributed

UTC dates decoded

568

Active 15-min windows

-6.9 dB

Estimated median S/N

Bands

80m · 166 60m · 15 40m · 3,368 20m · 1,970 10m · 322

First attributed message: 2026-06-08
Last attributed message: 2026-09-19 13:44 UTC

Observed FT8 message patterns

Attributed sample: 5,841 messages
Active dates: 67 UTC dates
Estimated median S/N: -6.9 dB
Estimated 10th-90th percentile: -16 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 670, moderate (-15 to -9 dB) 1,643, strong (≥ -8 dB) 3,528.

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 IZ4AIF in decoded directed-looking exchanges:

IZ7FLN · Italy ×7 IZ0ZZV · Italy ×6 9A5E · Croatia ×5 IT9FEG · Sicily ×5 IU0KNS · Italy ×5 G8KHF · England ×4 HA1ZW · Hungary ×4 IK4ZII · Italy ×4 IU5KWL · Italy ×4 F5RMK · France ×3 4X1UF · Israel ×3 CT7AUT · Portugal ×3

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 IZ4AIF

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: JN54 · 2,786 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-09-19 13:40 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	IZ4AIF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 13:43	40m	-6 / +5	DB8BT	-19 / -19	4	✓ Full exchange observed
09-19 13:41	40m	- / -	DB8BT	-14 / -	2	Partial capture
09-19 13:32	40m	-12 / 0	DL8NW	-16 / +8	5	✓ Full exchange observed
09-19 08:39	40m	-11 / -	IU0TYC	- / -	5	Partial capture
09-19 08:33	40m	-13 / -13	PC9F	-14 / +10	4	✓ Full exchange observed
09-19 08:27	40m	-11 / -	IN3IZQ	- / -18	4	✓ Closing fragment
09-19 08:21	40m	+2 / -	S51TN	+6 / -	5	✓ Full exchange observed
09-19 08:20	40m	-4 / -	DF2JK	- / +4	2	✓ Closing fragment
09-19 07:28	40m	+2 / -	IT9FEG	- / -5	2	✓ Closing fragment
09-19 07:27	40m	-2 / -	IU0KNS	- / +9	3	✓ Closing fragment
09-19 06:28	40m	+11 / -	ZL3IO	- / +10	4	✓ Closing fragment
09-19 06:26	40m	+5 / -	F4MOJ	-9 / -	4	✓ Closing observed
09-19 06:24	40m	+10 / -	ZL3IO	- / -	2	Partial capture
09-19 06:21	40m	-4 / -5	9A7DNZ	-13 / +7	7	✓ Full exchange observed
09-19 06:20	40m	+10 / -	G8KHF	- / -4	3	✓ Closing fragment
09-19 06:17	40m	+4 / -7	RW3YS	+2 / +5	7	✓ Full exchange observed
09-19 06:16	40m	0 / -1	OT7K	+4 / -	5	✓ Full exchange observed
09-19 06:13	40m	+3 / -9	GM6URC	-22 / -14	5	Partial capture
09-19 06:13	40m	+6 / -	IZ7FLN	- / -	2	Partial capture
09-19 06:11	40m	+4 / 0	DJ9FBA	-6 / +10	4	✓ Full exchange observed
09-18 21:10	80m	- / -11	HA3PG	-17 / -	2	Partial capture
09-18 21:07	80m	- / +3	EH3ST	-14 / -	2	✓ Closing fragment
09-18 21:01	80m	-9 / -	TA4/DD1WT	- / +5	5	Partial capture
09-18 20:58	80m	- / +8	OE2AGZ	-8 / -	3	✓ Closing fragment
09-18 20:53	80m	-12 / -	IN3XSV	- / -	2	Partial capture
09-18 10:56	40m	- / -	SQ8MXR	-12 / -	2	Partial capture
09-18 10:52	40m	-12 / -	IT9FEG	- / -7	2	✓ Closing fragment
09-18 10:51	40m	-14 / -	IU3BIX	- / -	2	✓ Closing fragment
09-17 20:47	80m	-4 / -2	PI4DX	+6 / +7	5	✓ Full exchange observed
09-17 20:45	80m	-3 / +1	IZ0MIT	-4 / -	5	✓ Closing observed
09-17 20:43	80m	-4 / -	DL3GA	-5 / +9	3	✓ Closing observed
09-17 20:38	80m	-11 / +4	II9IAGM	-7 / -	2	Partial capture
09-17 20:35	80m	-14 / -	ON1AEY	- / -1	2	Partial capture
09-17 20:33	80m	-7 / -17	3Z100PKP	+10 / 0	5	Partial capture
09-17 20:31	80m	-5 / +6	IQ0AAI	-8 / -	4	✓ Full exchange observed
09-17 20:28	80m	-20 / -	G8OO	-11 / -10	2	Partial capture
09-17 20:27	80m	-11 / -	OE9RWH	- / -	2	✓ Closing fragment
09-17 20:24	80m	- / -	PH7GD	-16 / -	3	Partial capture
09-17 18:57	80m	-5 / -11	PA0LDE	-10 / -12	7	✓ Full exchange observed
09-17 18:54	80m	-6 / +2	II8IHBC	+2 / -	3	Partial capture
09-17 18:52	80m	+2 / -1	DK2MAX	+2 / -	6	Partial capture
09-17 18:51	80m	-10 / -8	ON7USB	+1 / -	4	✓ Full exchange observed
09-17 18:49	80m	0 / +3	HG0NPJ	+4 / +9	5	✓ Full exchange observed
09-17 18:48	80m	-13 / -6	HB9CYN	-8 / -	3	✓ Closing observed
09-17 18:45	40m	+16 / -	YO2CIP	- / -	2	✓ Closing fragment
09-17 18:43	40m	+7 / -	LA8ENA	-8 / +2	4	✓ Closing observed
09-17 18:41	40m	+7 / -	SP9NR	- / -	3	Partial capture
09-17 18:37	40m	+6 / -8	EA1RCW	-16 / 0	4	✓ Full exchange observed
09-17 18:33	40m	+16 / -	DL1SHA	+1 / -	5	✓ Full exchange observed
09-17 18:31	40m	+6 / -	R3YH	-5 / +1	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
133645  -9 1165  CQ IZ4AIF JN54 (x9)
134100 -17 1164  IZ4AIF DB8BT JO42 (x2)
134345  -5 1164  DB8BT IZ4AIF -19 (x2)
134430 -19 1165  IZ4AIF DB8BT R+05
134445  -4 1164  DB8BT IZ4AIF RR73

80m

UTC    dB Audio  Message
205430 -11 1503  IN3XSV IZ4AIF JN54
205515  +4 2641  IZ4AIF R2EA/P +02
205830 -10 2465  IZ4AIF OE2AGZ JN67 (x3)
210145  -6 1204  TA4/DD1WT IZ4AIF JN54 (x5)
210545  -9 1700  9A60CBM IZ4AIF R+05
210700 -15 1605  IZ4AIF EH3ST +03 (x2)
211045 -15 2075  IZ4AIF HA3PG -11 (x2)

60m

UTC    dB Audio  Message
183300  +3 1850  IZ4AIF SQ9BC RR73
183400  +8  308  IZ4AIF IV3DSG -05 (x2)
183530 -22 1365  IZ4AIF II8IHBC -11
183600 -14 1365  IZ4AIF RR73; DG1KFR <...> -04
183700 -17 2071  IZ4AIF II7IABB -16
183715 -21 2072  II7IABB IZ4AIF R-01 (x2)
183845 -12  635  <II9IAGM> IZ4AIF JN54
184000  +0  634  IZ4AIF II8IHBC +03
184130  -7  418  IZ4AIF IW5DNZ -10 (x2)
184300  +0  746  IZ4AIF SN40KZE -07
184315 -14  746  SN40KZE IZ4AIF R-14
184445 -22 1544  SM0EJR IZ4AIF R-13

20m

UTC    dB Audio  Message
091500  -1  755  IZ4AIF IR7MGGC +00
091830  -7 2493  IC8XUS IZ4AIF JN54 (x5)
092100  -2 1292  YO2MD IZ4AIF JN54 (x3)
092300  -6 2163  OK1VM IZ4AIF JN54 (x4)
152030 -24 1344  IZ4AIF HA1BF -03
155200  +4 2932  IZ4AIF SM5DXR -08

10m

UTC    dB Audio  Message
142445  -5  894  IZ4AIF R6DOP R+03 (x2)
142600  +1  893  R6DOP IZ4AIF RR73
142615  -4  894  IZ4AIF R6DOP 73
142630  -6 1398  F5RMK IZ4AIF JN54 (x3)
142800  -1  845  DO5HOK IZ4AIF JN54 (x3)
142945  -1 1280  OZ7FOC IZ4AIF JN54 (x2)
170845  -5 2688  PU2BRU IZ4AIF JN54
171315 -24 1875  CQ IZ4AIF JN54                        a1
171345 -20 1764  HZ1TT IZ4AIF JN54

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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