IN3JRZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN56

Receiver-side FT8 activity involving IN3JRZ, decoded by SO8OO in southeastern Poland. 618 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 38 UTC dates in the available aggregate history. Observed between 2026-07-23 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 618 FT8 messages attributed to IN3JRZ as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (93%), followed by 20 m (7%). Most decodes (90%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -5.9 dB.

Overview

618

Messages attributed

UTC dates decoded

134

Active 15-min windows

-5.9 dB

Estimated median S/N

Bands

40m · 576 20m · 42

First attributed message: 2026-07-23
Last attributed message: 2026-09-19 12:07 UTC

Observed FT8 message patterns

Attributed sample: 618 messages
Active dates: 38 UTC dates
Estimated median S/N: -5.9 dB
Estimated 10th-90th percentile: -18 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 376.

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 IN3JRZ in decoded directed-looking exchanges:

DL3EBJ · Fed. Rep. of Germany ×2 YO4NF · Romania ×2 F4LTP · France ×2 F5HNQ · France ×2 PD1AQL · Netherlands ×2 F4HTA · France SV2CLJ · Greece 9A1CCB · Croatia DC8KU · Fed. Rep. of Germany DH3LAT · Fed. Rep. of Germany DK5RL · Fed. Rep. of Germany DL1HDL · Fed. Rep. of Germany

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 IN3JRZ

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: JN56 · 356 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 885 km (approx.)
Last such locator decoded: 2026-09-19 12:05 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	IN3JRZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 12:06	40m	-22 / -	IZ8PPI	- / -25	2	✓ Closing fragment
09-18 12:58	40m	-18 / -	DJ2MS	- / +1	2	Partial capture
09-18 12:44	40m	-10 / -	LX1GG	- / -	2	✓ Closing fragment
09-18 11:37	40m	- / -14	SP3EIE	-8 / -	4	✓ Closing fragment
09-18 11:31	40m	- / 0	HA1BF	-6 / -	2	✓ Closing fragment
09-17 18:45	40m	-3 / -	IK2DUW	- / -15	5	✓ Closing fragment
09-17 18:41	40m	-2 / -8	M7LBT	+2 / -	4	Partial capture
09-17 18:24	40m	- / -13	R1AI	-6 / -	7	✓ Closing fragment
09-17 18:23	40m	-6 / -7	RX3ASQ	-6 / -6	8	✓ Full exchange observed
09-17 16:42	40m	-4 / -11	IN3XSV	-5 / -	4	✓ Closing observed
09-17 16:41	40m	- / -	LZ2VQ	-6 / -	2	Partial capture
09-17 16:40	40m	- / -	RX3ASQ	-10 / -	2	Partial capture
09-17 16:40	40m	- / -	UA3PAB	+3 / -	3	Partial capture
09-17 16:38	40m	- / +2	SP9CXN	+7 / -	3	Partial capture
09-17 16:34	40m	-7 / -5	F1UNR	-15 / -4	4	✓ Full exchange observed
09-17 16:32	40m	-12 / -	F4JKT	- / -11	2	Partial capture
09-17 16:25	40m	-2 / -	IW2MLJ	- / -	3	Partial capture
09-17 16:21	40m	-9 / -	IN3XSV	+1 / +8	8	Partial capture
09-17 16:20	40m	-3 / 0	II8IHBC	-14 / -7	3	Partial capture
09-17 13:15	40m	- / -10	PA3CPS	-6 / -	4	✓ Closing fragment
09-17 13:13	40m	-12 / -	PD1WGL	- / -4	2	Partial capture
09-17 13:09	40m	- / -2	HA7TM	+16 / -	4	✓ Closing fragment
09-17 13:06	40m	-23 / -	I0XNH	-16 / -	2	✓ Closing observed
09-17 10:37	40m	-16 / -	HB9ZHK	- / 0	2	Partial capture
09-17 10:27	40m	- / -	HA7TM	+4 / -	2	Partial capture
09-17 10:18	40m	- / -19	S55X	-22 / -	2	✓ Closing fragment
09-13 19:03	40m	-8 / -	IT9ACJ	- / -	2	Partial capture
09-13 18:49	40m	-4 / -10	SQ3TR	+14 / -6	4	✓ Full exchange observed
09-12 19:24	40m	+1 / -	DL1LKG	+1 / -15	5	✓ Full exchange observed
09-12 19:19	40m	-4 / +6	IZ5CMG	+2 / -7	5	✓ Full exchange observed
09-12 18:53	40m	-8 / -	4X5GE	- / -	2	Partial capture
09-12 18:15	40m	- / -10	IN3LHF	-6 / -	3	Partial capture
09-12 16:37	40m	-1 / -	F1RIQ	- / -	3	Partial capture
09-12 16:36	40m	+4 / -	HA8RC	- / -	2	Partial capture
09-12 16:27	40m	-2 / -	IZ6OVN	- / +1	3	✓ Closing fragment
09-12 16:23	40m	0 / -	IU1KMZ	- / -	2	Partial capture
09-12 16:22	40m	+4 / -	4O/PD0MDX	- / -	2	Partial capture
09-12 16:19	40m	+2 / -	HA8RC	- / -4	4	Partial capture
09-12 16:13	40m	+4 / -6	DH3GAR	+4 / -10	4	✓ Full exchange observed
09-12 15:56	40m	-4 / -	IU0KNS	- / -	3	Partial capture
09-12 15:54	40m	-10 / -	IU8TIT	- / -	3	Partial capture
09-12 15:18	40m	-8 / -	IU3BTF	- / -20	2	✓ Closing fragment
09-12 14:11	40m	-5 / -	YO4BXX	- / -	2	Partial capture
09-11 19:08	40m	- / -4	II9IAGM	-11 / -	2	Partial capture
09-11 18:59	40m	-1 / -3	DJ0MAB	+3 / -	2	Partial capture
09-11 18:44	40m	- / -	E70SZ	+12 / -	3	Partial capture
09-11 18:40	40m	+12 / -	IA5ITY	+5 / -4	7	✓ Full exchange observed
09-11 18:35	40m	0 / -	S53AK	- / -	2	Partial capture
09-11 18:34	40m	+6 / -	DF6DM	- / -	2	Partial capture
09-11 16:20	40m	-4 / 0	IK1MJK/P	-13 / 0	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
113700  -7  946  IN3JRZ SP3EIE JO83 (x4)
124445  -9 2618  LX1GG IN3JRZ JN56 (x2)
125545  -9 2618  CQ IN3JRZ JN56
125830 -18 1066  DJ2MS IN3JRZ JN56 (x2)
131245 -18 1884  RN3DDW/P IN3JRZ JN56
120430 -23 1976  CQ IN3JRZ JN56                        a1 (x3)
120600 -21 1976  IZ8PPI IN3JRZ R-25 (x2)

20m

UTC    dB Audio  Message
100530  -6 2422  IN3JRZ PE1NPS JO22
100545 -11  606  CQ IN3JRZ JN56
123630  -8  930  IN3JRZ IU8WRA JM89
123630  -4  889  IN3JRZ F6BHK JN24
123700  -4  930  IN3JRZ IU8WRA JM89
123700  -6 2149  IN3JRZ F6BHK JN24
123730 -12  929  IN3JRZ IU8WRA JM89
123800 -11  889  IN3JRZ F6BHK R+00
124600  +1  921  IN3JRZ IX1HPN JN35 (x3)
125430 -14  721  DK5RL IN3JRZ R+10 (x2)
152000 -16 1528  IN3JRZ R1ZDG R-11
095400 -20 1293  YO2MD IN3JRZ JN56

10m

UTC    dB Audio  Message
140300 -11  633  IN3JRZ SV2CLJ RR73
140230 -14  919  IN3JRZ F5ILV JN23 (x2)
104345 -24 1738  IN3JRZ PE9JAN R+14
121545 -16 1085  IN3JRZ F4HTA -10 (x3)

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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