IS0DDL — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Sardinia Most frequent locator attributed to this token: JN40

Receiver-side FT8 activity involving IS0DDL, decoded by SO8OO in southeastern Poland. 181 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-11-03.

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 181 FT8 messages attributed to IS0DDL as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 40 m (27%) and 80 m (23%). Several six-hour UTC windows tied for the largest share (81%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

181

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 41 60m · 86 40m · 49 20m · 5

First attributed message: 2026-08-31
Last attributed message: 2026-11-03 18:51 UTC

Observed FT8 message patterns

Attributed sample: 181 messages
Active dates: 10 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 65.

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 IS0DDL in decoded directed-looking exchanges:

GU4WRP · Guernsey ×2 E77EA · Bosnia-Herzegovina RI1FJL · Franz Josef Land 4O7CC · Montenegro 5B4AAB · Cyprus BG2GWN · China EX7CQ · Kyrgyzstan LY4Q · Lithuania SV9FBT · Crete Z62NS · Republic of Kosovo 4Z4DX · Israel EH6DSY · Balearic Islands

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 IS0DDL

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: JN40 · 116 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,447 km (approx.)
Last such locator decoded: 2026-11-03 18:51 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	IS0DDL S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 18:53	40m	- / -	OE5FIL	-18 / -	3	Partial capture
11-03 18:51	40m	- / -	PE1NPS	-12 / -	2	Partial capture
11-03 18:48	40m	-14 / -	JY5IB	- / -23	5	Partial capture
11-03 18:37	40m	-17 / -	3V8LL	- / -	2	Partial capture
11-03 18:29	40m	- / -	DL7ACA	-2 / -	2	Partial capture
10-26 20:20	160m	- / -16	HB9AMO	+4 / -	15	Partial capture
10-26 20:12	160m	- / -25	OM2WQ	+12 / -	3	Partial capture
10-26 19:49	40m	- / -12	5B4AAB	+1 / -	2	✓ Closing fragment
10-26 19:46	40m	- / -6	GU4WRP	-2 / -	2	✓ Closing fragment
10-25 20:00	80m	- / -	OZ1GYO	-1 / -	3	Partial capture
10-25 19:55	80m	- / -	UA3IDQ	-12 / -	8	Partial capture
10-25 19:55	80m	- / -	OZ1GYO	-11 / -	4	Partial capture
10-25 19:52	80m	-15 / -14	GU4WRP	-11 / -	5	✓ Closing observed
10-25 19:49	80m	-18 / -	GU4WRP	- / -	2	Partial capture
10-25 19:49	80m	- / -	F6FEG	-13 / -	5	Partial capture
10-25 19:48	80m	- / -	DL5DQZ	-12 / -	7	Partial capture
10-25 19:47	80m	-12 / -	IU8UHK	- / -17	2	✓ Closing fragment
10-25 19:47	80m	- / -	DL1EKO	0 / -	2	Partial capture
10-25 19:47	80m	- / -	LY1DY	+15 / -	2	Partial capture
10-25 19:47	80m	- / -	OZ1GYO	-8 / -	2	Partial capture
10-25 19:46	80m	-12 / -	OE5ABL	- / -18	2	✓ Closing fragment
10-25 19:13	80m	- / -	OZ1GYO	-13 / -	3	Partial capture
10-25 19:11	80m	-6 / -18	SP9UPH	+6 / -14	8	Partial capture
10-25 19:10	80m	- / -	OK2CNI	+8 / -	5	Partial capture
10-25 19:10	80m	- / -	RX3ASQ	-6 / -	2	Partial capture
10-25 19:08	80m	-13 / -11	OM3RP	+14 / -	3	✓ Closing observed
10-23 21:03	160m	- / -4	IZ8VYU	-5 / -	4	Partial capture
10-23 21:02	160m	- / -22	E77EA	+3 / -	2	✓ Closing fragment
10-23 20:56	80m	-12 / -	SV9MBH	- / -	2	Partial capture
10-23 20:44	60m	-13 / -	EI6IZ	- / -	6	Partial capture
10-23 20:43	60m	- / -	DB6LL	-12 / -	3	Partial capture
10-23 20:41	60m	-19 / -	CU2DX	- / -	5	Partial capture
10-23 20:39	60m	- / -	F6FHZ	-17 / -	2	Partial capture
10-23 20:37	60m	-16 / -	IW9FRA	- / -16	4	✓ Closing fragment
10-23 20:35	60m	- / -	G4NSO	-13 / -	3	Partial capture
10-23 20:32	60m	-20 / -	CU2DX	- / -	9	Partial capture
10-23 20:27	60m	- / -	DF2RQ	-20 / -	2	Partial capture
10-23 20:26	60m	-21 / -	EH6DSY	-18 / -10	2	✓ Closing observed
10-23 20:20	60m	- / -	DF2RQ	-20 / -	2	Partial capture
10-23 20:16	60m	- / -	QRM	+17 / -	3	Partial capture
10-23 20:15	60m	- / -	PSEQSY	+18 / -	3	Partial capture
10-23 20:15	60m	-20 / -	IW9FRA	- / -	3	Partial capture
10-23 20:14	60m	-15 / -	Z68QQ	- / -	3	Partial capture
10-23 20:13	60m	- / -	DF2RQ	+5 / -	9	Partial capture
10-23 20:12	60m	- / +1	I8OHQ	-2 / -	2	Partial capture
10-23 20:11	60m	-16 / -	S57MPU	- / +4	2	✓ Closing fragment
10-23 20:09	60m	-17 / -	VU2NKS	- / -18	4	✓ Closing fragment
10-23 20:06	60m	-16 / -	LY8O	- / -9	3	✓ Closing fragment
10-23 20:03	60m	-14 / -	CU2DX	- / -	6	Partial capture
10-23 20:01	60m	-14 / -	ES8GP	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
182945  -3 1762  IS0DDL DL7ACA JO40
183330  -2  981  IS0DDL CU2AP -16
183715 -18 1763  3V8LL IS0DDL JN40 (x2)
184845 -14 1762  JY5IB IS0DDL R-23 (x5)
185130 -12 2514  IS0DDL PE1NPS JO22
185145 -21 1762  CQ IS0DDL JN40                        a1
185200 -13 2513  IS0DDL PE1NPS JO22
185300 -22 1722  IS0DDL OE5FIL JN68 (x3)

160m

UTC    dB Audio  Message
202030  +7 1989  IS0DDL HB9AMO JN36 (x15)

80m

UTC    dB Audio  Message
195515 -11 1725  F5HNQ IS0DDL -18
195530 -13 1710  IS0DDL UA3IDQ KO66
195530 -14 2247  IS0DDL OZ1GYO JO65
195600 -20 1710  IS0DDL UA3IDQ KO66
195600 -13 2247  IS0DDL OZ1GYO JO65
195630 -13 1710  IS0DDL UA3IDQ KO66
195630  -7 2247  IS0DDL OZ1GYO JO65
195700 -10 1710  IS0DDL UA3IDQ KO66 (x5)
200030  -3 2246  IS0DDL OZ1GYO JO65 (x3)

60m

UTC    dB Audio  Message
204045 -17 1756  IS0DDL F6FHZ JN18
204100 -18 1756  CU2DX IS0DDL JN40 (x5)
204345 -12 1691  IS0DDL DB6LL JO43 (x2)
204430 -16 1755  EI6IZ IS0DDL JN40
204445 -14 1691  IS0DDL DB6LL JO43
204500 -16 1756  EI6IZ IS0DDL JN40 (x5)

20m

UTC    dB Audio  Message
190115 +19  635  RI1FJL IS0DDL JN40 (x3)
190230  -3  683  IS0DDL DL0BSO JO42 (x2)
191145 +11  635  CQ IS0DDL JN40
191200 -12  915  IS0DDL G8IXM JO02 (x2)
194515 +14  635  HS0ZOY IS0DDL JN40

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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