IU7MOB — 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: JN81

Receiver-side FT8 activity involving IU7MOB, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-08-07 and 2026-08-28.

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 72 FT8 messages attributed to IU7MOB as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 10 m (13%). Most decodes (61%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 63 10m · 9

First attributed message: 2026-08-07
Last attributed message: 2026-08-28 08:05 UTC

Observed FT8 message patterns

Attributed sample: 72 messages
Active dates: 11 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -12 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 47.

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 IU7MOB in decoded directed-looking exchanges:

7Z1BQ · Saudi Arabia 9A4ZM · Croatia CR7BUJ · Portugal PA2RO · Netherlands TT1GD · Chad 3A2MW · Monaco CN8NS · Morocco JY4CI · Jordan K2TQC · United States KA1MXL · United States N2BJ · United States WA4MIT · United States

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 IU7MOB

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 · 40 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,009 km (approx.)
Last such locator decoded: 2026-08-28 08:02 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	IU7MOB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 15:55	10m	- / -12	CR7BUJ	-4 / -	2	✓ Closing fragment
10-11 09:31	10m	- / -4	7Z1BQ	-18 / -	2	✓ Closing fragment
08-29 17:39	20m	- / +2	UA6YW	+3 / -	2	Partial capture
08-28 08:01	20m	-10 / -	W4IMD	- / -16	7	Partial capture
08-26 08:04	20m	- / -8	KD4AP	-10 / -	2	Partial capture
08-25 08:57	20m	-3 / -	WA4MIT	- / -11	3	✓ Closing fragment
08-25 08:01	20m	-4 / -17	II7MGXX	+12 / -13	4	Partial capture
08-24 14:57	20m	-12 / -	<...>	- / -15	2	Partial capture
08-21 20:10	20m	-4 / -	AH2O	- / -	2	Partial capture
08-21 20:05	20m	0 / -	KA1MXL	- / -16	6	✓ Closing fragment
08-21 20:02	20m	0 / -	AH2O	- / -14	3	Partial capture
08-21 19:43	20m	-1 / -	K2TQC	- / -10	3	✓ Closing fragment
08-10 16:46	10m	-4 / -	PA2RO	- / -15	2	✓ Closing fragment
08-10 16:44	10m	-2 / -	CR5VP	- / -9	2	Partial capture
08-10 15:33	10m	-6 / -	TT1GD	- / -12	3	✓ Closing fragment
08-09 16:54	20m	-10 / -	DJ0MAB	- / -20	2	Partial capture
08-09 16:52	20m	-10 / -	N2BJ	- / -15	3	✓ Closing fragment
08-08 17:47	20m	-6 / -	JY4CI	- / -13	3	✓ Closing fragment
08-07 07:33	20m	-14 / -	AD9GE	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
153315  -7  751  TT1GD IU7MOB JN81 (x3)
153545  -4  751  DN9QP IU7MOB -18
164400  +0  751  CR5VP IU7MOB JN81 (x2)
164600  -6  751  9A4ZM IU7MOB RR73
164630  -5  751  PA2RO IU7MOB -15 (x2)
093130 -16 1349  IU7MOB 7Z1BQ -04 (x2)
155500  -2 1185  IU7MOB CR7BUJ -12 (x2)

20m

UTC    dB Audio  Message
080430 -10 1582  IU7MOB KD4AP -08 (x3)
081200  +4  786  WA1BXY IU7MOB JN81
074745  -6  783  KD7PCE IU7MOB JN81
074845 -18  783  K0ILP IU7MOB JN81
080100  -8 1535  W4IMD IU7MOB JN81 (x7)
173945  +3  710  IU7MOB UA6YW LN04 (x2)

40m

UTC    dB Audio  Message
092500 -24 1728  IU7MOB IR7MGGC -03
172245 -14 1246  IU7MOB II7MGXX +00

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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