IZ5JNO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN53

Receiver-side FT8 activity involving IZ5JNO, decoded by SO8OO in southeastern Poland. 503 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-11.

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 503 FT8 messages attributed to IZ5JNO as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 40 m (23%) and 80 m (15%). Most decodes (50%) fell within the six-hour window 08:00-14:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -1.9 dB.

Overview

503

Messages attributed

UTC dates decoded

Active 15-min windows

-1.9 dB

Estimated median S/N

Bands

80m · 75 40m · 114 20m · 256 10m · 58

First attributed message: 2026-06-07
Last attributed message: 2026-09-11 07:12 UTC

Observed FT8 message patterns

Attributed sample: 503 messages
Active dates: 28 UTC dates
Estimated median S/N: -1.9 dB
Estimated 10th-90th percentile: -16 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 92, strong (≥ -8 dB) 359.

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 IZ5JNO in decoded directed-looking exchanges:

RI1ZR · European Russia ×2 AD9DU · United States ×2 YO3GNF · Romania OA4ENG · Peru TN8GD · Republic of the Congo OZ9TAN · Denmark XE2V · Mexico DL1ESZ · Fed. Rep. of Germany RK3AW · European Russia TA3XEE · Asiatic Turkey PP5GP · Brazil KC0VTJ · United States

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 IZ5JNO

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: JN53 · 162 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-09-11 06:55 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	IZ5JNO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 07:09	40m	+1 / -	K0KP	- / -5	6	Partial capture
09-11 07:05	40m	0 / -	PA2RO	- / -7	3	Partial capture
09-11 07:01	40m	- / -	PA2RO	-12 / -	2	Partial capture
09-11 06:58	40m	-1 / -	KD0PO	- / -12	13	✓ Closing fragment
09-11 06:53	40m	0 / -	J38DX	- / -19	3	✓ Closing fragment
09-11 06:51	40m	0 / -	KC9USW	- / -	4	Partial capture
09-11 06:49	40m	-3 / -	PY8WW	- / -15	3	Partial capture
09-02 19:19	80m	-2 / -	RI1FJL	- / -	6	Partial capture
09-02 19:14	80m	-2 / -	VK6IR	- / -16	2	✓ Closing fragment
09-02 18:49	80m	-3 / -	ZS1J	- / -17	5	Partial capture
09-02 18:27	80m	-7 / -	ZS1J	- / -14	4	Partial capture
09-02 18:16	80m	-11 / -	ZS1J	- / -	3	Partial capture
09-02 18:10	40m	+10 / -	RI1FJL	- / -	2	Partial capture
09-02 17:53	80m	-7 / -	R0AH	- / -14	3	Partial capture
09-02 06:24	80m	-23 / -	HI8R	- / -13	5	Partial capture
09-02 06:10	80m	-19 / -	HI8R	- / -	2	Partial capture
09-02 05:50	80m	-19 / -	RI1FJL	- / 0	2	Partial capture
09-02 05:44	80m	-14 / +4	OK5AG	+8 / 0	4	✓ Full exchange observed
09-02 05:42	80m	-12 / -	IS0LLL	- / -7	2	✓ Closing fragment
09-02 05:37	80m	-12 / -	KY4WI	- / -18	3	Partial capture
09-02 05:29	80m	- / -1	E74K	+6 / -	2	✓ Closing fragment
09-02 05:27	80m	-24 / -	<...>	- / +5	2	Partial capture
09-02 04:55	80m	-6 / -3	SP9YGD	+8 / -2	6	✓ Full exchange observed
09-02 04:54	80m	-14 / -	EA1CQ	- / -3	2	✓ Closing fragment
09-02 04:50	80m	-11 / -	DL1ESZ	- / -15	2	✓ Closing fragment
09-02 04:50	80m	-9 / -5	SP6FME	+4 / +1	8	✓ Full exchange observed
09-02 04:46	80m	-4 / -	RI1FJL	- / -	4	Partial capture
09-02 04:14	80m	+1 / -	RI1FJL	- / -	2	Partial capture
09-02 03:49	40m	+13 / -	KJ5KON	- / -18	2	Partial capture
09-02 03:44	40m	+12 / -	UT5MB	- / -3	2	✓ Closing fragment
09-02 03:43	40m	+10 / -	UR9QQ	- / -10	2	✓ Closing fragment
09-01 06:31	40m	-1 / -2	YO3GNF	-2 / +1	7	✓ Full exchange observed
09-01 06:30	40m	-2 / +1	R2FDU	-11 / -3	5	✓ Full exchange observed
09-01 06:28	40m	-4 / -	NA9Y	- / -21	3	✓ Closing fragment
08-30 06:57	40m	0 / -	KJ5PTH	- / -	10	Partial capture
08-19 13:59	10m	+4 / -	PD0LBY	- / -12	2	Partial capture
08-19 13:58	10m	+6 / -	DN9SGE	- / -1	2	✓ Closing fragment
08-19 13:56	10m	0 / -	XQ3SK	- / -6	3	✓ Closing fragment
08-19 13:53	10m	+6 / -	YO6LM	- / -1	3	✓ Closing fragment
08-19 13:52	10m	+4 / -	EA5JKM	- / -6	2	✓ Closing fragment
08-19 13:50	10m	+4 / -	PU5WDB	- / -19	2	✓ Closing fragment
08-19 13:48	10m	+10 / -	M8RAG	- / -12	2	Partial capture
08-19 13:47	10m	+8 / -	AQ6DT	- / -15	5	Partial capture
08-19 13:44	10m	+5 / -	PY4BSC	- / -11	4	✓ Closing fragment
08-15 13:15	20m	+6 / -	XU7O	- / -	10	Partial capture
08-15 13:06	20m	+7 / -	XU7O	- / -	11	Partial capture
08-15 13:03	20m	+7 / -	R2FDP/P	- / -5	3	Partial capture
08-15 13:01	20m	+6 / -	XU7O	- / -	4	Partial capture
08-15 12:59	20m	+2 / -	<...>	- / -9	2	Partial capture
08-15 12:56	20m	+5 / -	SP1ZMO	- / +3	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
070300  +1 1934  KD0PO IZ5JNO RR73 (x4)
070530  -1 1538  PA2RO IZ5JNO -07
070600  +1 1538  KD0PO IZ5JNO RR73
070700  +0 1538  PA2RO IZ5JNO -07 (x2)
070845  +0 1734  HK4EIC IZ5JNO -13
070915  +1 1734  K0KP IZ5JNO -05 (x6)

80m

UTC    dB Audio  Message
185015  -1  758  ZS1J IZ5JNO -17 (x4)
185845  -2 1593  RA2FU IZ5JNO -22
185915  -5 1593  ZS1J IZ5JNO -16
191445  -6 1303  VK6IR IZ5JNO -16 (x2)
191915  +1 1527  RI1FJL IZ5JNO JN53 (x7)

10m

UTC    dB Audio  Message
135015  +4 1381  AQ6DT IZ5JNO -15
135045  +3 1381  PU5WDB IZ5JNO -19 (x2)
135215  +0 1381  EA5JKM IZ5JNO R-06 (x2)
135315  +6 1371  YO6LM IZ5JNO -01 (x3)
135630  +2 1371  XQ3SK IZ5JNO -06 (x3)
135830  +4 1370  DN9SGE IZ5JNO -01 (x2)
135945  +5 1370  PD0LBY IZ5JNO -12 (x2)

20m

UTC    dB Audio  Message
130915  +3  751  XU7O IZ5JNO JN53 (x15)

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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