IU7EJB — 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 IU7EJB, decoded by SO8OO in southeastern Poland. 170 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-05.

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 170 FT8 messages attributed to IU7EJB as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 160 m (28%) and 60 m (18%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

170

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 48 80m · 69 60m · 31 40m · 20 20m · 2

First attributed message: 2026-06-10
Last attributed message: 2026-11-05 20:19 UTC

Observed FT8 message patterns

Attributed sample: 170 messages
Active dates: 13 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 93.

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 IU7EJB in decoded directed-looking exchanges:

RI1FJL · Franz Josef Land RI1FJZ · Franz Josef Land

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 IU7EJB

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 · 143 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,009 km (approx.)
Last such locator decoded: 2026-11-05 20:19 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	IU7EJB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 19:47	40m	-16 / -	6W/IK2HKT	- / -	2	Partial capture
11-05 19:46	40m	-18 / -	PF40EUDXF	- / -	2	Partial capture
11-03 03:29	80m	+6 / -	SP5DFK/QRP	- / -12	38	Partial capture
11-03 03:26	80m	+2 / -	6W/IK2HKT	- / -	3	Partial capture
11-03 03:22	80m	-1 / -	SP5DFK/QRP	- / -	7	Partial capture
11-02 07:47	40m	-6 / -	OK/DG4KAI	- / -	8	Partial capture
11-02 07:45	40m	-4 / -	RA6FCU/P	- / -	6	Partial capture
11-01 22:08	60m	-16 / -	VE2BJG	- / -12	3	Partial capture
11-01 21:58	60m	-9 / -18	6W/IK2HKT	-13 / -11	12	Partial capture
10-21 21:52	160m	-10 / -	7P8GE	- / -26	2	Partial capture
10-21 21:32	160m	-12 / -	7P8GE	- / -	3	Partial capture
10-21 21:02	160m	-12 / -	7P8GE	- / -15	26	Partial capture
09-21 03:29	80m	+4 / -	EA5HM	-6 / 0	7	Partial capture
09-21 03:28	80m	+8 / -	RI1FJZ	- / -10	3	✓ Closing fragment
09-20 21:13	160m	-12 / -	RI1FJZ	- / -15	3	Partial capture
09-20 18:54	160m	-12 / -	RI1FJZ	- / -	11	Partial capture
09-04 20:05	80m	-5 / -	RI1FJL	- / -	7	✓ Closing fragment
08-12 23:13	20m	-16 / -	<...>	- / -10	2	Partial capture
08-09 05:11	60m	-11 / -	YS/WE9G	- / -13	3	Partial capture
08-09 05:07	60m	-9 / -	<...>	- / -10	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
074815  -4  930  OK/DG4KAI IU7EJB JN81
074845  -5  929  RA6FCU/P IU7EJB JN81 (x2)
075015  -6  930  OK/DG4KAI IU7EJB JN81 (x6)
075345 -12 1930  UA3PAB/QRP IU7EJB JN81
194645 -18 1230  PF40EUDXF IU7EJB JN81
194715 -16 1229  <6W/IK2HKT> IU7EJB JN81 (x2)
194815 -19 1230  PF40EUDXF IU7EJB JN81
201915 -22 1229  DA125RH IU7EJB JN81

80m

UTC    dB Audio  Message
034045 +14 1193  SP5DFK/QRP IU7EJB JN81 (x15)

60m

UTC    dB Audio  Message
215815 -10 1324  6W/IK2HKT IU7EJB JN81 (x10)
220330 -13  638  IU7EJB 6W/IK2HKT -18
220345  -5 1324  6W/IK2HKT IU7EJB R-16
220815 -14 1324  VE2BJG IU7EJB -12 (x3)

160m

UTC    dB Audio  Message
211245 -16 2039  7P8GE IU7EJB JN81 (x13)
222945 -18 1552  6W/IK2HKT IU7EJB JN81
223630 -10  607  IU7EJB RR73; F6DAY <...> -18

20m

UTC    dB Audio  Message
231345 -14 2387  <...> IU7EJB JN81 (x2)

10m

UTC    dB Audio  Message
203630 -17 2278  IU7EJB PE1NPS JO22

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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