IU8ADS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN70

Receiver-side FT8 activity involving IU8ADS, decoded by SO8OO in southeastern Poland. 1,350 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-29.

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 1,350 FT8 messages attributed to IU8ADS as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%), followed by 20 m (0%). Most decodes (60%) fell within the six-hour window 06:00-12:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -3 dB.

Overview

1,350

Messages attributed

UTC dates decoded

141

Active 15-min windows

-3 dB

Estimated median S/N

Bands

20m · 3 10m · 1,347

First attributed message: 2026-06-08
Last attributed message: 2026-08-29 19:05 UTC

Observed FT8 message patterns

Attributed sample: 1,350 messages
Active dates: 31 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -14 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 101, moderate (-15 to -9 dB) 269, strong (≥ -8 dB) 980.

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 IU8ADS in decoded directed-looking exchanges:

DL1CC · Fed. Rep. of Germany ×2 DN9KL · Fed. Rep. of Germany ×2 YO4HQF · Romania ×2 5B4ARQ · Cyprus 7Q5MP · Malawi 9A3NF · Croatia 9A5AJR · Croatia BH4UTT · China CA7FKZ · Chile CS7AWL · Portugal DA6DE · Fed. Rep. of Germany DA6PI · 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 IU8ADS

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: JN70 · 294 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,175 km (approx.)
Last such locator decoded: 2026-08-29 19:05 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	IU8ADS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 19:04	10m	-13 / -	LU9EKA	- / -13	3	Partial capture
08-29 07:58	10m	-7 / -	YO3GCL	- / -1	3	✓ Closing fragment
08-29 07:57	10m	-13 / -	UR5LAK	- / -18	2	✓ Closing fragment
08-29 07:53	10m	-16 / -	<...>	- / -	2	✓ Closing fragment
08-29 07:50	10m	-4 / -	A92GE	- / -	4	Partial capture
08-29 07:49	10m	-12 / -	UR5LAK	- / -17	2	Partial capture
08-29 07:45	10m	-4 / -	SQ8GBG	- / 0	3	✓ Closing fragment
08-29 07:40	10m	-5 / -	<...>	- / -11	6	✓ Closing fragment
08-29 07:34	10m	-11 / -	YO8BJK	- / -3	3	✓ Closing fragment
08-29 07:28	10m	-12 / -	R6OIZ	- / -	2	Partial capture
08-29 07:16	10m	-2 / -	DK3EE	- / -	3	Partial capture
08-29 07:15	10m	-8 / -	UR5TQ	- / -8	2	✓ Closing fragment
08-28 10:50	10m	-6 / -	JA1QJI	- / -12	8	Partial capture
08-28 10:46	10m	-12 / -	3Z9W	- / -	2	Partial capture
08-28 10:45	10m	-10 / -	BH4UTT	- / -14	3	✓ Closing fragment
08-28 10:43	10m	+8 / -	DD8BV	- / -7	2	✓ Closing fragment
08-28 10:41	10m	+4 / -	JH1IFS	- / -	3	Partial capture
08-28 10:37	10m	-8 / -	JA9NFO	- / -12	4	✓ Closing fragment
08-28 10:34	10m	-9 / -	JH6DSR	- / -	2	Partial capture
08-28 10:33	10m	-7 / -	JF3LGY	- / -12	5	✓ Closing fragment
08-27 09:35	10m	-5 / -	G8BCG	- / -8	3	✓ Closing fragment
08-27 09:32	10m	-11 / -	DD6IV	- / -14	3	✓ Closing fragment
08-24 22:13	10m	-13 / -	DL9KM	- / -11	2	✓ Closing fragment
08-24 22:11	10m	-10 / -	OZ8DKH	- / -20	3	✓ Closing fragment
08-24 22:09	10m	-7 / -	G0VUH	- / -13	3	✓ Closing fragment
08-24 22:07	10m	-8 / -	DD8ZX	- / -7	4	✓ Closing fragment
08-24 22:03	10m	-8 / -	XE1TZP	- / -17	7	✓ Closing fragment
08-23 19:33	10m	-16 / -	LW4DRC	- / -15	2	Partial capture
08-23 19:25	10m	-5 / -	LU3MC	- / -13	2	Partial capture
08-23 19:24	10m	-14 / -	PT9HT	- / -6	2	Partial capture
08-23 19:23	10m	-6 / -	LU1DG	- / -14	2	✓ Closing fragment
08-23 19:19	10m	-7 / -	PY2CAB	- / -19	4	✓ Closing fragment
08-23 19:17	10m	-21 / -	PT9HT	- / -	2	Partial capture
08-18 08:53	10m	-4 / +1	R3KLE	+1 / -	5	Partial capture
08-18 08:51	10m	-10 / -	DO5HOK	- / -5	2	✓ Closing fragment
08-18 08:48	10m	-18 / -	DN9CHV	- / -10	3	✓ Closing fragment
08-18 08:42	10m	-4 / -	DN9PMH	- / -17	3	Partial capture
08-18 08:36	10m	-14 / -	YO4DWD	- / -5	3	Partial capture
08-18 08:32	10m	-2 / -	DL4DBL	- / -8	2	✓ Closing fragment
08-18 08:03	10m	-17 / -	UT1US	- / +4	3	✓ Closing fragment
08-18 08:01	10m	-14 / -	SP9IMY	- / -3	5	Partial capture
08-18 08:00	10m	-14 / -	R9FFZ	- / -14	2	Partial capture
08-18 07:52	10m	-16 / -	DA6DE	- / -10	5	✓ Closing fragment
08-18 07:47	10m	-9 / -	OK1VRV	- / -7	3	✓ Closing fragment
08-18 07:45	10m	-10 / -	DO1ZK	- / -9	3	✓ Closing fragment
08-18 07:44	10m	-10 / -	RC2Y	- / -20	3	Partial capture
08-18 07:42	10m	-2 / -	HA1TJ	- / -4	3	✓ Closing fragment
08-17 17:45	10m	-16 / -	PU1PCR	- / -	2	Partial capture
08-17 17:35	10m	-15 / -	LU1DOJ	- / -	3	Partial capture
08-17 17:30	10m	-5 / -	UN2E	- / -11	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
075100  -6  716  A92GE IU8ADS JN70 (x2)
075330 -15 1783  <...> IU8ADS JN70 (x2)
075615  +0 2614  SO1CJ IU8ADS JN70
075700 -12 1783  UR5LAK IU8ADS -18 (x2)
075815  -9 2433  YO3GCL IU8ADS JN70 (x3)
080715 -12  618  CR7BRV IU8ADS JN70
190400 -14 1758  PT9RR IU8ADS JN70
190445 -11 1999  LU9EKA IU8ADS JN70 (x3)

20m

UTC    dB Audio  Message
063100  -8 2625  M6FPW IU8ADS JN70
063145 -11 2624  IU8ADS M6FPW -20 (x2)
070100 -10 2547  IU8ADS DJ2VA -11
070145  -7 2547  DJ2VA IU8ADS 73
071100 -18 2045  IU8ADS EH5FJI +06 (x2)
071245 -16 1478  W4U IU8ADS JN

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee