IS0BOZ — 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: JM49

Receiver-side FT8 activity involving IS0BOZ, decoded by SO8OO in southeastern Poland. 2,209 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 2,209 FT8 messages attributed to IS0BOZ as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (38%), followed by 60 m (26%) and 80 m (14%). Most decodes (55%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

2,209

Messages attributed

UTC dates decoded

284

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 848 80m · 313 60m · 564 40m · 164 20m · 272 10m · 48

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 02:29 UTC

Observed FT8 message patterns

Attributed sample: 2,209 messages
Active dates: 75 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 310, moderate (-15 to -9 dB) 728, strong (≥ -8 dB) 1,171.

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 IS0BOZ in decoded directed-looking exchanges:

CT2GQA · Portugal ×3 F1PBZ · France ×3 VP2MAA · Montserrat ×3 DL1CC · Fed. Rep. of Germany ×2 ES3TI · Estonia ×2 GU4WRP · Guernsey ×2 OD5XX · Lebanon ×2 RW9JZ · Asiatic Russia ×2 UX0QT · Ukraine ×2 W4IPC · United States ×2 ES2AJ · Estonia ×2 KC4QX · United States ×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 IS0BOZ

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: JM49 · 939 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,535 km (approx.)
Last such locator decoded: 2026-10-22 02:29 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	IS0BOZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 02:27	60m	-4 / -	3B8FA	- / -	5	Partial capture
10-22 01:36	60m	- / -3	G1LQT	-10 / -	2	Partial capture
10-22 01:34	60m	-1 / -	3B8FA	- / -	5	Partial capture
10-22 01:29	160m	- / -	UA4FKT	+8 / -	2	Partial capture
10-22 01:22	160m	- / -	PA3KUS	-24 / -	3	Partial capture
10-22 01:19	160m	-5 / -18	RY9C	+3 / -11	10	✓ Full exchange observed
10-22 01:14	160m	-7 / -	7P8GE	- / -	8	Partial capture
10-22 01:08	60m	+3 / -	EG46PPA	- / -18	3	Partial capture
10-17 20:24	160m	- / -	IU5HIU	-23 / -	3	Partial capture
10-17 20:21	160m	-12 / -18	SQ9BC	+7 / -18	6	✓ Full exchange observed
10-17 19:34	80m	-18 / -23	T77R	-2 / -19	5	✓ Full exchange observed
10-17 04:07	160m	-8 / -11	G7RAU	-21 / -16	6	✓ Full exchange observed
10-17 04:07	160m	-11 / -4	OH2FT	0 / -	6	✓ Closing observed
10-17 04:07	160m	-13 / -9	SP9DGO	+12 / -16	5	✓ Full exchange observed
10-17 03:57	160m	-16 / +3	SP9DGO	+12 / -15	11	Partial capture
10-17 03:25	80m	+2 / -	C31KC	- / -	2	Partial capture
10-16 03:16	60m	-10 / -	KT4ZX	- / -2	2	✓ Closing fragment
10-16 03:15	60m	- / -	DL1CF	-11 / -	11	Partial capture
10-16 03:14	60m	-4 / -2	LY2HM	-9 / -9	6	✓ Full exchange observed
10-16 03:13	60m	-6 / -3	Z35T	-3 / +10	6	✓ Full exchange observed
10-16 02:28	60m	-4 / -	N4FJB	- / -16	4	✓ Closing fragment
10-16 02:05	60m	-6 / -	DL/SP3OKU	- / -17	4	Partial capture
10-16 02:02	60m	+5 / -	<...>	- / -17	6	Partial capture
10-16 01:59	60m	+4 / -	8P6GY	- / -17	7	Partial capture
10-16 01:43	60m	+4 / +3	VP2MAW	-8 / -9	7	✓ Full exchange observed
10-15 20:48	60m	- / -	G0GFC	-6 / -	2	Partial capture
10-15 20:47	60m	0 / 0	EB5AFK	-6 / -	5	✓ Full exchange observed
10-15 20:39	60m	- / -	OZ5AGJ	-14 / -	2	Partial capture
10-15 20:37	60m	+2 / -	A92AE	- / -11	13	Partial capture
10-15 20:16	160m	- / -	DC6UW	0 / -	3	Partial capture
10-15 20:16	160m	- / -19	SN5N	+6 / -	5	Partial capture
10-15 20:15	160m	-10 / -	IQ0AAI	-16 / 0	5	✓ Closing observed
10-15 20:11	160m	- / -	HA6NN	-7 / -	3	Partial capture
10-15 20:10	160m	- / -8	F4JUQ	-14 / -	4	Partial capture
10-15 20:10	160m	- / -9	SQ9BC	+12 / -	4	Partial capture
10-15 20:06	160m	- / -	SP3BP	+4 / -	4	Partial capture
10-15 20:06	160m	-18 / -8	ES3TI	0 / -18	17	✓ Full exchange observed
10-15 20:02	160m	- / -	E70SZ	-12 / -	5	Partial capture
10-15 20:01	160m	-14 / -	9H1ES	- / 0	2	Partial capture
10-15 19:58	160m	-8 / -4	S58N	-11 / -	5	✓ Full exchange observed
10-15 19:50	160m	-22 / -	H49A	- / +4	6	Partial capture
10-14 03:06	60m	- / -	DL1CF	-6 / -	6	Partial capture
10-14 03:01	60m	-6 / -	HI3QMT	- / -23	6	✓ Closing fragment
10-14 02:29	160m	- / -	LA3QAA	-10 / -	7	Partial capture
10-14 02:25	160m	- / -	UA4FKT	+6 / -	3	Partial capture
10-14 02:25	160m	- / -	RX6DA	-7 / -	10	Partial capture
10-14 02:24	160m	- / -	LA3QAA	-15 / -	3	Partial capture
10-14 02:23	160m	- / -	HF5A	+13 / -	3	Partial capture
10-14 02:13	60m	+2 / -	ER3ZW	- / -6	2	✓ Closing fragment
10-14 02:10	60m	0 / -	WA1NGH	- / -7	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
010845  +1  957  EG46PPA IS0BOZ JM49 (x2)
010930  -5  462  IS0BOZ RR73; KD4EXS <...> -06
013445  -1  958  3B8FA IS0BOZ JM49 (x4)
013630  -7  843  IS0BOZ G1LQT -03
013645  -3  958  3B8FA IS0BOZ JM49
013700 -13  843  IS0BOZ G1LQT -03
022715  -7 1116  3B8FA IS0BOZ JM49 (x5)

160m

UTC    dB Audio  Message
011930  +3 1679  IS0BOZ RY9C R-18 (x4)
012115  -3  925  RY9C IS0BOZ RR73
012130  -1  926  IS0BOZ UA4FKT LO23
012130  +0 1679  IS0BOZ RY9C 73
012145  -2  925  RY9C IS0BOZ R-10
012200  +3 1679  IS0BOZ RY9C RR73
012200 -24 1022  IS0BOZ PA3KUS JO21 (x3)
012845  -3  925  CQ IS0BOZ JM49
012900  +8  926  IS0BOZ UA4FKT LO23 (x2)

80m

UTC    dB Audio  Message
024500  +8 1962  IS0BOZ YO4NF -11
024500  +6  826  IS0BOZ DK7ZT -11
024530 +10 1962  IS0BOZ YO4NF -11
202200 -12  628  CQ DX IS0BOZ JM49 (x4)
032545  +2  947  C31KC IS0BOZ JM49 (x2)
193415  +0  704  IS0BOZ T77R -23 (x3)
193530 -18 2105  T77R IS0BOZ R-19
193545  -2  703  IS0BOZ T77R RR73 (x2)

10m

UTC    dB Audio  Message
073130 -18 1438  VK0DS IS0BOZ -08 (x4)
155100 -23 1638  IS0BOZ C5R RR73

40m

UTC    dB Audio  Message
210315 -16  970  J48S IS0BOZ JM49 (x2)
220630 -22 1165  9K2HS IS0BOZ JM49 (x2)
033545 -24 1645  C5R IS0BOZ JM49 (x8)
021915  -3  632  IS0BOZ VP2MAA -13 (x3)

20m

UTC    dB Audio  Message
031400  -6 2894  IS0BOZ RR73; KU4KS <...> -10
173045 -10 2776  5N0YEN IS0BOZ -15
051230  -7 1059  9K2OK IS0BOZ +00 (x6)
180615 +10  447  RI1FJL IS0BOZ -07 (x3)
180730  +9  379  IS0BOZ IC8TEM JN70
180745  +3  447  RI1FJL IS0BOZ -07 (x2)
042830 -15 2534  <...> IS0BOZ -02

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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