IZ7NLJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN81

Receiver-side FT8 activity involving IZ7NLJ, decoded by SO8OO in southeastern Poland. 2,698 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-10-11.

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 2,698 FT8 messages attributed to IZ7NLJ as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (65%), followed by 80 m (17%) and 40 m (14%). Most decodes (81%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -2 dB.

Overview

2,698

Messages attributed

UTC dates decoded

376

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 1,760 80m · 449 60m · 36 40m · 381 20m · 72

First attributed message: 2026-06-29
Last attributed message: 2026-10-11 21:33 UTC

Observed FT8 message patterns

Attributed sample: 2,698 messages
Active dates: 56 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -13 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 174, moderate (-15 to -9 dB) 426, strong (≥ -8 dB) 2,098.

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 IZ7NLJ in decoded directed-looking exchanges:

JF8QNF · Japan ×6 CT2GQA · Portugal ×4 OM3SX · Slovak Republic ×3 TF4M · Iceland ×3 DL8TV · Fed. Rep. of Germany ×2 IZ7LDC · Italy ×2 JA0MVW · Japan ×2 JA1ILA · Japan ×2 JA6MWW · Japan ×2 JA8EPO · Japan ×2 JG3TRB · Japan ×2 LY8O · Lithuania ×2

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 IZ7NLJ

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: JN81 · 1,872 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,009 km (approx.)
Last such locator decoded: 2026-10-11 21:31 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	IZ7NLJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 21:32	160m	+4 / -	CT2GQA	-13 / -10	5	✓ Closing observed
10-11 21:32	160m	+2 / -15	DL8SBD	-4 / -11	5	✓ Full exchange observed
10-11 21:30	160m	+1 / -15	OK1BLU	-2 / -16	4	✓ Full exchange observed
10-11 21:04	160m	+3 / -	IZ1HJU	-22 / -22	3	✓ Closing observed
10-11 20:32	160m	- / +3	DL4DBL	-11 / -	3	✓ Closing fragment
10-11 18:39	160m	0 / -17	R3GO	0 / -14	5	✓ Full exchange observed
10-11 18:02	160m	-4 / -11	DF6DBF	-20 / -8	3	✓ Full exchange observed
10-11 18:00	160m	-2 / -	R6ZEJ	- / -21	2	✓ Closing fragment
10-11 17:57	160m	+1 / -	RA4Y	- / -20	3	✓ Closing fragment
10-11 17:27	160m	+2 / -	IK7SHC	-19 / -	2	✓ Closing observed
10-11 17:26	160m	-4 / -9	SQ8GBG	+1 / -17	10	✓ Full exchange observed
10-11 17:13	160m	+2 / +1	IK6FHG	-19 / -13	4	✓ Full exchange observed
10-11 16:51	80m	- / -21	R2BBT	-20 / -	4	Partial capture
10-11 16:42	160m	-2 / -2	SN4K	+5 / -20	6	✓ Full exchange observed
10-11 16:39	160m	-4 / -12	SP5IDR	+3 / -10	5	✓ Full exchange observed
10-11 16:39	160m	-5 / +4	SV1DOO	-23 / -3	5	✓ Closing observed
10-11 16:28	60m	-4 / -	H49A	- / -25	12	✓ Closing fragment
10-11 16:24	60m	-9 / -	H49A	- / -	3	Partial capture
10-10 21:09	160m	+7 / -	M0IOY	- / -17	2	Partial capture
10-10 21:06	160m	+8 / -2	IK4IDY	-12 / -7	5	✓ Full exchange observed
10-10 17:05	160m	- / -22	RA3VMD	-8 / -	2	Partial capture
10-10 16:59	160m	- / -	IK0PHY	-17 / -	3	Partial capture
10-10 16:58	160m	- / -12	PE2AE	-11 / -	6	Partial capture
10-10 16:57	160m	+6 / -9	UT7NY	+12 / -7	5	✓ Full exchange observed
10-10 16:28	160m	+1 / -10	LY8O	-3 / -	4	✓ Closing observed
10-10 16:27	160m	0 / -	UD8S	- / -11	2	✓ Closing fragment
10-09 21:50	160m	+2 / 0	IZ6BRN	+14 / -1	6	✓ Full exchange observed
10-09 21:47	160m	+7 / -7	SP9HPI	+11 / -18	5	✓ Full exchange observed
10-09 21:44	160m	+5 / -	EA4DS	- / -20	3	✓ Closing fragment
10-09 21:43	160m	- / -	RA8AO	-24 / -	2	Partial capture
10-09 21:30	160m	+8 / +3	E70SZ	-6 / -4	5	✓ Full exchange observed
10-09 21:30	160m	+8 / 0	R3ZP	-18 / -13	7	✓ Full exchange observed
10-09 21:25	160m	+6 / -	UN0GY	- / -8	5	✓ Closing fragment
10-09 21:17	160m	- / -	DL4BCY	+4 / -	6	Partial capture
10-09 20:40	160m	+8 / -	DF3YG	-16 / -15	4	✓ Closing observed
10-09 20:33	160m	+8 / +2	OE6JCG	-4 / -2	4	✓ Full exchange observed
10-09 20:32	160m	+14 / -	S52R	+4 / -11	4	✓ Full exchange observed
10-09 20:31	160m	- / -	OK1BLU	-9 / -	2	Partial capture
10-09 17:50	160m	+4 / 0	F6DHD	-14 / -13	5	✓ Full exchange observed
10-09 16:16	160m	+8 / -	SV7BVM	-12 / -4	5	✓ Closing observed
10-09 15:45	160m	+6 / -2	RX6DA	-20 / -16	4	✓ Full exchange observed
10-09 15:42	160m	+4 / -14	RA1QD	-4 / -	5	Partial capture
10-09 15:39	160m	-2 / -	RU3X	-20 / -13	4	✓ Closing observed
10-09 15:36	160m	+2 / +2	S58T	+9 / 0	5	✓ Full exchange observed
10-08 17:38	80m	+12 / -3	DL7UKM	+7 / -14	6	✓ Full exchange observed
10-08 17:38	80m	+15 / +5	DL6EL	-2 / -2	4	✓ Full exchange observed
10-08 17:37	80m	+14 / -	OH3MB	-4 / -11	4	✓ Full exchange observed
10-08 17:28	160m	0 / -5	SV2HNC	-2 / -7	5	✓ Full exchange observed
10-08 17:25	80m	- / -5	DO8JB	-12 / -	2	Partial capture
10-08 17:25	80m	+18 / -	BA5AN	- / -22	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
213045  +5 2448  OK1BLU IZ7NLJ -16
213100  -2 2225  IZ7NLJ OK1BLU R-15
213115  -3 2447  OK1BLU IZ7NLJ RR73
213130  -3 2225  IZ7NLJ OK1BLU 73
213145  +5 2448  CQ IZ7NLJ JN81
213200  -5  755  IZ7NLJ DL8SBD JN49
213200  -9 2447  IZ7NLJ CT2GQA IM58
213215  +4 2448  DL8SBD IZ7NLJ -11
213230  -9  755  IZ7NLJ DL8SBD R-15
213230 -14 2447  IZ7NLJ CT2GQA IM58
213245  +1 2448  DL8SBD IZ7NLJ RR73
213300  +1  755  IZ7NLJ DL8SBD 73
213300 -17 2447  IZ7NLJ CT2GQA IM58
213315  +3 2448  CT2GQA IZ7NLJ -10 (x2)

80m

UTC    dB Audio  Message
173845  -1 1583  IZ7NLJ DL6EL RR73
173900 +15  454  DL6EL IZ7NLJ 73
173915  +9 1056  IZ7NLJ DL7UKM JO62
173930 +13  454  DL7UKM IZ7NLJ -14
173945  +7 1056  IZ7NLJ DL7UKM R-03
174000 +12  454  DL7UKM IZ7NLJ RR73
174015  +7 1056  IZ7NLJ DL7UKM 73
164845  +7 2449  CQ IZ7NLJ JN81 (x4)
165100 -17 2012  IZ7NLJ R2BBT -21 (x4)

60m

UTC    dB Audio  Message
162515  -5  657  H49A IZ7NLJ JN81 (x14)
163615  -3 2479  A92AE IZ7NLJ 73

40m

UTC    dB Audio  Message
050015 -13 1552  CQ IZ7NLJ JN81
050030  -7 1551  IZ7NLJ G3TKT IO92
050030  +1 2594  IZ7NLJ DL3NAA JN38 (x3)
050500 -13 1551  YO2MKE IZ7NLJ RR73
050515  -8 1237  IZ7NLJ IU8RFW JN70
050515 -12 1983  IZ7NLJ F4HSB JN37 (x2)
050600 -11 1552  F4HSB IZ7NLJ -20
050615 -13 1982  IZ7NLJ F4HSB R+21
050630 -12 1551  F4HSB IZ7NLJ -20
050645 -10 1982  IZ7NLJ F4HSB R+21 (x2)
050800  -9 1551  UT5MB IZ7NLJ -13

20m

UTC    dB Audio  Message
070345  +6 2659  IZ7NLJ DL1R JN58
070445 -18 1799  IZ7NLJ S55A JN65
070445  +2 2659  IZ7NLJ DL1R JN58
070600 +11 2562  S55A IZ7NLJ -15 (x2)
070645 -12 1799  IZ7NLJ S55A R-05 (x2)
070745 +13 2562  DB2VS IZ7NLJ JN81
070830 -13 1795  IZ7NLJ DB2VS +11 (x2)
071045 +18 2562  DB2VS IZ7NLJ R-12
071100 -10 1796  IZ7NLJ DB2VS RR73
071115  +8 2562  DB2VS IZ7NLJ 73
175500 -14 2362  CQ IZ7NLJ JN81
180230 -18 2363  KF9UG IZ7NLJ JN81

10m

UTC    dB Audio  Message
082345  -7 2858  IZ7NLJ BG0HP -16 (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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