IU7IVX — 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: Italy Most frequent locator attributed to this token: JN80

Receiver-side FT8 activity involving IU7IVX, decoded by SO8OO in southeastern Poland. 164 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-31.

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 164 FT8 messages attributed to IU7IVX as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (74%), followed by 20 m (18%) and 40 m (9%). The busiest six-hour window was 07:00-13:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

164

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 14 20m · 29 10m · 121

First attributed message: 2026-06-12
Last attributed message: 2026-10-31 21:32 UTC

Observed FT8 message patterns

Attributed sample: 164 messages
Active dates: 11 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -22 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 71.

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 IU7IVX in decoded directed-looking exchanges:

A61FJ · United Arab Emirates ZB3Z · Gibraltar JG3LGD · Japan RA9LL · Asiatic Russia EX7CQ · Kyrgyzstan GJ0KYZ · Jersey

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 IU7IVX

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: JN80 · 138 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,114 km (approx.)
Last such locator decoded: 2026-10-31 21:32 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	IU7IVX S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 20:19	40m	- / -9	TA4SSK	-1 / -	3	Partial capture
11-01 08:48	40m	- / -	DH2NJS	-9 / -	7	Partial capture
10-31 20:49	40m	- / -	EB2EMZ	-23 / -	3	Partial capture
10-29 20:11	40m	- / -14	GJ0KYZ	-11 / -	5	✓ Closing fragment
10-29 18:55	40m	-20 / -	EX7CQ	- / -	2	✓ Closing fragment
10-29 18:36	40m	-18 / -	A61DD	- / -	2	Partial capture
10-29 18:34	40m	-21 / -	OK3MB	- / -	3	Partial capture
10-29 18:30	40m	-18 / -	UN0GY	- / -14	3	Partial capture
10-29 15:06	10m	- / -13	ZB3Z	-11 / -	2	✓ Closing fragment
08-25 16:11	20m	- / -16	RA9LL	+12 / -	2	✓ Closing fragment
08-25 16:07	20m	- / -17	JG3LGD	-2 / -	2	✓ Closing fragment
08-23 15:06	10m	-22 / -	A61FJ	-13 / -	3	✓ Closing observed
08-23 12:55	10m	-15 / -	ZS6MGM	- / -	5	Partial capture
08-23 12:53	10m	-22 / -	JL1QOC	- / -	4	Partial capture
08-23 12:43	10m	-11 / -	YD2BIN	- / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
204900 -23 1653  IU7IVX EB2EMZ IN83 (x3)
213100 -24 1650  JA7JWF IU7IVX JN80
213200 -24 1650  JE1BMJ IU7IVX JN80
084830 -11  905  IU7IVX DH2NJS JO50 (x7)
201930  -2 3038  IU7IVX TA4SSK -09 (x3)

10m

UTC    dB Audio  Message
125330 -22 1687  JL1QOC IU7IVX JN80 (x4)
125530 -16 1680  ZS6MGM IU7IVX JN80 (x5)
141315 -22 1691  YB1MR IU7IVX JN80
150630 -21 1696  A61FJ IU7IVX JN80 (x2)
150745 -13 1709  IU7IVX A61FJ RR73
150645 -12  939  IU7IVX ZB3Z -13 (x2)

20m

UTC    dB Audio  Message
160715  -4  379  IU7IVX JG3LGD -17 (x2)
161115  +9 2607  IU7IVX RA9LL -16 (x2)
142545 -15 2796  IU7IVX G8ANJ IO91

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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