IU7VOL — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IU7VOL, decoded by SO8OO in southeastern Poland. 1,287 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 1,287 FT8 messages attributed to IU7VOL as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (56%), followed by 20 m (22%) and 40 m (19%). Most decodes (68%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

1,287

Messages attributed

UTC dates decoded

177

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 39 40m · 241 20m · 282 10m · 725

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 15:47 UTC

Observed FT8 message patterns

Attributed sample: 1,287 messages
Active dates: 54 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 152, moderate (-15 to -9 dB) 400, strong (≥ -8 dB) 735.

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 IU7VOL in decoded directed-looking exchanges:

IU2SLI · Italy ×3 IQ4JO · Italy ×3 LZ3CB · Bulgaria ×2 F5RRS · France ×2 DN9KL · Fed. Rep. of Germany ×2 GJ0KYZ · Jersey ×2 SP5LST · Poland ×2 HA3GX · Hungary ×2 YO3GNF · Romania ×2 F5PBG · France ×2 SV5BYP · Dodecanese ×2 PA3BMB · Netherlands ×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 IU7VOL

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 · 570 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,009 km (approx.)
Last such locator decoded: 2026-09-04 15:41 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	IU7VOL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 15:46	40m	-17 / -8	IN3LTL	-1 / -3	5	✓ Full exchange observed
09-04 15:44	40m	- / -13	IU3WON	-11 / -	3	✓ Closing fragment
09-02 15:57	40m	-11 / -19	SP9CXN	-14 / -1	3	✓ Full exchange observed
09-02 15:31	40m	- / -1	DF1IH	-1 / -	3	✓ Closing fragment
09-01 21:16	40m	- / -13	DK8HC	-8 / -	4	✓ Closing fragment
09-01 21:14	40m	- / -10	DL3MIB	+12 / -	4	✓ Closing fragment
08-31 17:54	80m	- / -6	LZ2VQ	0 / -	3	✓ Closing fragment
08-31 17:44	20m	- / -12	F4EFZ	-7 / -	3	✓ Closing fragment
08-31 17:37	20m	- / -18	F4NBB	-3 / -	2	Partial capture
08-31 17:22	20m	- / -	PD0ONP	+3 / -	3	Partial capture
08-31 17:21	20m	- / -7	HB9RYB	-6 / -	4	Partial capture
08-31 17:17	20m	- / +1	DB6FK	-2 / -	6	✓ Closing fragment
08-31 17:08	40m	0 / -	US3EW	-3 / -5	3	Partial capture
08-31 17:02	40m	-1 / -19	UR5XEJ	-6 / -5	10	✓ Full exchange observed
08-31 17:01	40m	-2 / -8	HA3HZ	-4 / -1	5	✓ Full exchange observed
08-31 16:59	40m	-4 / -	JH5LCN	- / -	2	Partial capture
08-31 16:52	20m	- / -6	F4ACR	+8 / -	3	✓ Closing fragment
08-31 16:13	40m	-6 / +5	IU2SLI	-6 / +5	6	✓ Full exchange observed
08-31 16:05	40m	-8 / -5	IK2WSA	-6 / +7	5	✓ Full exchange observed
08-30 17:23	20m	-21 / -10	DL0GEO	-11 / -	5	✓ Closing observed
08-30 17:08	20m	-10 / -19	EP2AES	-2 / -6	6	Partial capture
08-30 16:57	20m	-13 / +6	RI1FJL	-11 / -12	4	✓ Full exchange observed
08-30 16:33	40m	-6 / -10	F4GUK	-10 / -	4	✓ Closing observed
08-30 16:32	40m	-8 / -	G0OYQ	- / -19	2	Partial capture
08-30 16:29	40m	-12 / -18	RA6FSV	-14 / -3	5	✓ Full exchange observed
08-30 16:28	40m	-10 / -15	R6DVV	-9 / -3	6	✓ Full exchange observed
08-30 16:23	40m	-10 / -	PA3BMB	-9 / -11	2	✓ Closing observed
08-30 06:45	40m	- / -14	ZA5G	-21 / -	2	✓ Closing fragment
08-30 06:37	40m	-15 / +6	IW2BUW	-12 / -	3	✓ Closing observed
08-30 06:28	40m	-11 / -	AA3B	- / -13	4	Partial capture
08-30 06:26	40m	-10 / -2	HA1ZW	-2 / +6	6	✓ Full exchange observed
08-30 06:16	20m	-1 / -	G7IGN	- / 0	2	✓ Closing fragment
08-30 06:14	20m	-4 / -	F4EDB	- / -8	2	✓ Closing fragment
08-30 06:10	20m	-7 / -	7Z1MM	- / -	5	Partial capture
08-29 17:43	80m	-10 / -	<...>	- / -	2	Partial capture
08-29 16:51	80m	- / -13	OK1UOZ	+10 / -	5	✓ Closing fragment
08-29 16:41	40m	-11 / -	F5HNQ	-3 / -6	11	Partial capture
08-29 16:14	40m	-5 / -	IN3LHF	- / -16	6	Partial capture
08-29 16:13	40m	-3 / -	F5HNQ	- / -5	2	Partial capture
08-28 17:33	40m	-8 / -	IV3HOS	- / -4	2	✓ Closing fragment
08-28 17:33	40m	- / -	DM8MH	-2 / -	3	Partial capture
08-28 17:28	40m	-9 / -	US3EW	- / -12	4	Partial capture
08-28 17:25	40m	- / -	US3EW	-5 / -	2	Partial capture
08-28 17:17	40m	-7 / -	CN8NS	- / -	6	Partial capture
08-28 17:12	40m	- / -11	EA5HM	-18 / -	2	Partial capture
08-27 17:14	40m	-12 / -	IZ4AIF	0 / -	6	✓ Full exchange observed
08-27 17:11	40m	-14 / +1	YO5IB	-9 / 0	4	✓ Full exchange observed
08-27 16:49	40m	-11 / -	IK0NHB	- / -1	3	Partial capture
08-27 16:46	40m	-10 / -4	PA7ZZ	-6 / -6	6	✓ Full exchange observed
08-27 16:46	40m	- / -	SP2SGZ	0 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
153245 -18 2067  CQ IU7VOL JN81                        a1 (x2)
155700 -13 1190  IU7VOL SP9CXN -19
155715 -11 1356  SP9CXN IU7VOL R-01
155800 -14 1191  IU7VOL SP9CXN RR73
154145 -14 1358  CQ IU7VOL JN81
154245 -14 1358  F4JYH IU7VOL -19
154400 -11 1359  IU7VOL IU3WON JN55 (x3)
154630  -2  812  IU7VOL IN3LTL JN56 (x2)
154715 -17 1358  IN3LTL IU7VOL -03
154730  -1  812  IU7VOL IN3LTL R-12 (x2)

80m

UTC    dB Audio  Message
191430  -3 1118  IU7VOL UX7QV KN29
191430 -13 1292  IU7VOL IK0CHU JN62
191530 -12 1118  IU7VOL UX7QV KN29
165130  +8 1972  IU7VOL OK1UOZ JO70 (x5)
174315  -9 1000  <...> IU7VOL JN81 (x2)
174730  +3 1155  IU7VOL II7MGBT +23
175330 -11 1702  IU7VOL II7MGXX -01
175430  +1 2226  IU7VOL LZ2VQ KN23 (x3)

20m

UTC    dB Audio  Message
171930  -1 2938  IU7VOL DB6FK 73
172100  -1  454  IU7VOL HB9RYB JN47 (x3)
172200  +2 1829  IU7VOL PD0ONP JO21
172230  -9  454  IU7VOL HB9RYB R-07
172330  +4 1829  IU7VOL PD0ONP JO21 (x2)
172930  +5 1800  IU7VOL GJ0KYZ RR73
173700  -3  868  IU7VOL F4NBB -18 (x2)
173845  -2  868  CQ IU7VOL JN81
174430  -9  868  IU7VOL F4EFZ JN17 (x3)

10m

UTC    dB Audio  Message
160330  +1 1488  IU7VOL DO3PKE JO61 (x2)
160400 +18 2534  IU7VOL DB2HA R+04
160430  +4 1487  IU7VOL DO3PKE JO61
160430 +13 2534  IU7VOL DB2HA R+04
160500  +4 1486  IU7VOL DO3PKE R-02
160500 +13 2534  IU7VOL DB2HA R+04
160530  +2 1486  IU7VOL DO3PKE 73
160530 +12 2535  IU7VOL DB2HA JO52 (x3)
160730 -13 1470  IU7VOL PD4DX JO33 (x2)
161800 -13 2156  IU7VOL DO6KDS JO30 (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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