IU7DLD — 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 IU7DLD, decoded by SO8OO in southeastern Poland. 36 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-28 and 2026-10-16.

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 36 FT8 messages attributed to IU7DLD as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (42%), followed by 60 m (22%) and 40 m (22%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 5 60m · 8 40m · 8 20m · 15

First attributed message: 2026-07-28
Last attributed message: 2026-10-16 20:56 UTC

Observed FT8 message patterns

Attributed sample: 36 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 16.

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 IU7DLD in decoded directed-looking exchanges:

RA4ADF · European Russia ×2 K0BFG · United States K1SM · United States YV6BXN · Venezuela 9A7BB · Croatia EA5KB · Spain G0HSP · England G4DBW · England UI6O · European Russia YT1VDA · Serbia EC3A · Spain F5RMK · France

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 IU7DLD

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 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,114 km (approx.)
Last such locator decoded: 2026-10-16 18:49 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	IU7DLD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 20:56	40m	-24 / -13	G0HSP	-1 / -11	3	✓ Full exchange observed
10-16 20:49	40m	-11 / 0	RA4ADF	-4 / -	3	✓ Closing observed
10-16 20:38	40m	- / -15	G4DBW	+2 / -	2	✓ Closing fragment
10-16 20:21	160m	- / -15	HA7TM	+3 / -	3	Partial capture
10-16 18:49	80m	-5 / -	EC5M	- / -	2	✓ Closing fragment
10-16 18:46	80m	-7 / -9	YO5QDI	0 / -4	5	✓ Full exchange observed
08-20 20:35	60m	-16 / -8	EC3A	-14 / -5	5	✓ Full exchange observed
08-19 22:53	20m	- / -14	KF9JF	-19 / -	4	Partial capture
08-19 22:51	20m	-15 / -13	YV6BXN	-6 / 0	5	✓ Full exchange observed
08-19 22:50	20m	-11 / -	KF9JF	- / -	2	Partial capture
08-19 22:48	20m	-5 / -	K1SM	- / -9	4	✓ Closing fragment
08-19 22:44	20m	+2 / -	K0BFG	- / -17	4	✓ Closing fragment
07-31 20:36	60m	-11 / -8	SQ8AA	+1 / -11	5	✓ Full exchange observed
07-31 18:18	60m	-7 / -14	F5RMK	-18 / -9	5	✓ Full exchange observed
07-29 21:34	40m	- / -	DL9KM	-14 / -	5	Partial capture
07-29 21:30	40m	-16 / -7	A61SD	-15 / -13	3	Partial capture
07-28 20:01	40m	- / +4	EA5KB	-20 / -	2	✓ Closing fragment
07-28 19:58	40m	- / -10	YT1VDA	-10 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
213400 -15 1811  IU7DLD DL9KM JN68 (x5)
213930 -24 1933  DM3KP IU7DLD JN80
203845  +0 2274  IU7DLD G4DBW -15 (x2)
204445 -13 1029  UI6O IU7DLD 73
204915  -5 2319  IU7DLD RA4ADF +00 (x2)
205000 -11 2319  RA4ADF IU7DLD 73
205615  +1 1668  IU7DLD G0HSP -13
205630 -24 1667  G0HSP IU7DLD R-11
205645  -3 1668  IU7DLD G0HSP RR73

160m

UTC    dB Audio  Message
202130  +1 2065  IU7DLD HA7TM -15 (x3)

80m

UTC    dB Audio  Message
184600  -6 2036  YO5QDI IU7DLD JN80
184615  -5 2037  IU7DLD YO5QDI -09
184630  -6 2037  YO5QDI IU7DLD R-04
184645  +4 2037  IU7DLD YO5QDI RR73
184700  -8 2036  YO5QDI IU7DLD 73
184900  -2  978  EC5M IU7DLD JN80 (x2)
202130  +0  999  IU7DLD IK5EEA -13

60m

UTC    dB Audio  Message
181815  -7 1329  F5RMK IU7DLD JN80
181830 -18 1330  IU7DLD F5RMK -14
181845  -5 1329  F5RMK IU7DLD R-09
181900 -18 1330  IU7DLD F5RMK RR73
181915  -8 1329  F5RMK IU7DLD 73
203645 -12 2362  SQ8AA IU7DLD JN80
203700  +4 2361  IU7DLD SQ8AA -08
203715 -10 2362  SQ8AA IU7DLD R-11
203730  +2 2361  IU7DLD SQ8AA RRR (x2)
203530 -19 1887  EC3A IU7DLD JN80
203545 -13 1887  IU7DLD EC3A -08
203600 -15 1886  EC3A IU7DLD R-05
203615 -16 1886  IU7DLD EC3A RR73
203630 -15 1886  EC3A IU7DLD 73

20m

UTC    dB Audio  Message
224800  -2 2315  K1SM IU7DLD JN80 (x4)
225000  -9 1028  KF9JF IU7DLD JN80 (x2)
225130 -14 1474  YV6BXN IU7DLD JN80
225145  -6 1475  IU7DLD YV6BXN -13
225200 -13 1474  YV6BXN IU7DLD R+00
225215  -7 1475  IU7DLD YV6BXN RR73
225230 -17 1474  YV6BXN IU7DLD 73
225315 -19 1028  IU7DLD KF9JF -14 (x4)

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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