IU7XWD — 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 IU7XWD, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 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 91 FT8 messages attributed to IU7XWD 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 (46%), followed by 80 m (33%) and 40 m (16%). Several six-hour UTC windows tied for the largest share (85%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 30 60m · 4 40m · 15 20m · 42

First attributed message: 2026-06-08
Last attributed message: 2026-11-05 22:48 UTC

Observed FT8 message patterns

Attributed sample: 91 messages
Active dates: 11 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -13 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 74.

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 IU7XWD in decoded directed-looking exchanges:

7Z1BQ · Saudi Arabia VE3TFN · Canada 4O7CC · Montenegro 9A5E · Croatia BA4RF · China DJ1MM · Fed. Rep. of Germany K1CA · United States OH3CYT · Finland SQ5ANT · Poland US2YW · Ukraine

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 IU7XWD

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 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,114 km (approx.)
Last such locator decoded: 2026-11-05 22:48 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	IU7XWD S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 22:48	80m	-7 / -	4O7CC	+1 / -	3	✓ Closing observed
11-05 22:37	60m	-17 / -10	9A4AA	-7 / -	5	Partial capture
11-05 05:28	40m	-8 / -	OA4ENG	- / -	5	Partial capture
11-03 14:33	40m	-4 / -	3A2LF	- / -	3	Partial capture
11-01 16:12	40m	-8 / -	VJ6X	- / -	3	Partial capture
10-07 23:13	80m	- / -	IU5HIU	-20 / -	2	Partial capture
10-07 23:11	80m	+6 / -10	OH3CYT	-6 / -7	4	✓ Full exchange observed
10-07 22:54	80m	- / -	9A4ZM	+10 / -	2	Partial capture
10-07 22:54	80m	- / -	DK8HC	+5 / -	5	Partial capture
10-07 22:52	80m	+3 / -11	SQ5ANT	0 / -13	8	✓ Full exchange observed
10-01 23:53	60m	-12 / -	KN6RO	- / -	2	Partial capture
10-01 23:33	80m	- / +6	DK7ZT	+10 / -	5	Partial capture
10-01 23:32	80m	- / -	DL9KM	-3 / -	5	Partial capture
10-01 23:31	80m	- / -	DL7ACA	+12 / -	4	Partial capture
10-01 23:31	80m	+4 / -5	US2YW	+4 / +1	7	✓ Full exchange observed
10-01 23:30	80m	+3 / -8	BA4RF	-10 / -14	5	✓ Full exchange observed
10-01 23:25	80m	+3 / +6	DK7ZT	+14 / +1	8	Partial capture
10-01 23:22	80m	0 / -16	K1CA	-10 / -13	8	✓ Full exchange observed
10-01 23:19	80m	-1 / -	CU6AB	- / -	3	Partial capture
10-01 21:26	80m	- / -	UA4FKT	+8 / -	3	Partial capture
10-01 21:25	80m	+6 / +1	DJ1MM	+8 / -	5	✓ Closing observed
09-30 13:33	10m	- / 0	7Z1BQ	-10 / -	3	✓ Closing fragment
09-25 21:11	80m	-7 / -9	9A5E	+11 / -	3	✓ Closing observed
09-05 20:56	40m	- / -	DL3MIB	+7 / -	6	Partial capture
09-05 20:51	40m	-14 / -	JH0KWZ	- / -	3	Partial capture
08-28 00:52	20m	- / -7	VE3TFN	-18 / -	2	✓ Closing fragment
08-27 15:07	20m	- / -3	A61FJ	-11 / -	2	Partial capture
08-22 03:51	20m	-23 / -12	XE1PM	-24 / -11	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
225500  +3  565  IU7XWD DK8HC JO42
225500 +10 1441  IU7XWD 9A4ZM JN86
225530  +6  565  IU7XWD DK8HC JO42 (x3)
231145  -9 1251  IU7XWD OH3CYT -10
231200  +8 1251  OH3CYT IU7XWD R-07
231215  -3 1251  IU7XWD OH3CYT RR73
231230  +4 1251  OH3CYT IU7XWD 73
231315 -19 1187  IU7XWD IU5HIU JN53 (x2)
224845  -7 1387  4O7CC IU7XWD JN80
224900  +0  318  IU7XWD 4O7CC +11 (x2)
225130 -13 1929  IU7XWD RW9MZ MO74

60m

UTC    dB Audio  Message
235345 -12 1525  KN6RO IU7XWD JN80 (x2)
223730 -17 1412  9A4AA IU7XWD JN80
223815  -7 1383  IU7XWD 9A4AA -10 (x4)
224430 -19 1411  W1NG IU7XWD JN80

40m

UTC    dB Audio  Message
205730  +7 1069  IU7XWD DL3MIB JN57 (x4)
161245  -5  666  VJ6X IU7XWD JN80 (x3)
143315  -6  395  3A2LF IU7XWD JN80 (x3)
052845  -8 2357  OA4ENG IU7XWD JN80 (x5)

10m

UTC    dB Audio  Message
133315  -8 1025  IU7XWD 7Z1BQ +00 (x3)
100515 -24 1667  IU7XWD JY5IB -04

20m

UTC    dB Audio  Message
034315 -24 1735  XE1PM IU7XWD JN80 (x2)
035230 -24 1921  IU7XWD XE1PM -12
035315 -22 1731  XE1PM IU7XWD R-11
150700 -13 2318  IU7XWD A61FJ -03 (x2)
185045  +5  576  IU7XWD YI1QEA -19
005230 -19 2249  IU7XWD VE3TFN -07 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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