IU3RUL — 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: JN66

Receiver-side FT8 activity involving IU3RUL, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-07 and 2026-10-10.

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 37 FT8 messages attributed to IU3RUL 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 (57%), followed by 40 m (43%). Most decodes (62%) fell within the six-hour window 06:00-12:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 16 20m · 21

First attributed message: 2026-08-07
Last attributed message: 2026-10-10 11:27 UTC

Observed FT8 message patterns

Attributed sample: 37 messages
Active dates: 6 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -18 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 24.

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 IU3RUL in decoded directed-looking exchanges:

F1PBZ · France M0PBG · England N1NRL · United States UT7UJ · Ukraine DH5BM · Fed. Rep. of Germany DL2VN · Fed. Rep. of Germany F4ESO · France SP7TF · Poland

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 IU3RUL

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: JN66 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 755 km (approx.)
Last such locator decoded: 2026-10-10 11:27 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	IU3RUL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 11:28	40m	- / -11	LY2KM	-7 / -	3	Partial capture
10-10 11:24	40m	-7 / -	ON8WR	- / -	4	Partial capture
10-01 18:28	40m	+6 / -5	F4ESO	-5 / +6	5	✓ Full exchange observed
09-06 07:08	40m	-3 / +2	DH5BM	-4 / -7	5	✓ Full exchange observed
09-06 06:44	40m	- / -4	DL2VN	-5 / -	3	✓ Closing fragment
08-23 08:59	20m	- / -	LZ3CB	+15 / -	3	Partial capture
08-23 08:59	20m	- / -	PD0PWH	-8 / -	3	Partial capture
08-23 08:57	20m	- / -11	F4BYA	+6 / -	5	Partial capture
08-23 08:57	20m	- / -	DL1UDO	-8 / -	2	Partial capture
08-23 08:57	20m	- / 0	M0PBG	+9 / -	3	✓ Closing fragment
08-23 08:54	20m	-20 / -24	UT7UJ	-3 / +1	8	✓ Full exchange observed
08-21 23:13	20m	-13 / -	WY0V	- / -	3	Partial capture
08-21 23:01	40m	-6 / -	SP7TF	- / -19	2	✓ Closing fragment
08-12 03:38	20m	- / -	N8HRZ	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
182845  -3 1455  IU3RUL F4ESO JN39
182900  +6 2303  F4ESO IU3RUL +06
182915  -4 1456  IU3RUL F4ESO R-05
182930  +5 2303  F4ESO IU3RUL RRR
182945  -7 1455  IU3RUL F4ESO 73
183030  +6 2757  K6AFW IU3RUL JN66
112345  -9  604  CQ IU3RUL JN66
112445  -8  604  ON8WR IU3RUL RRR (x4)
112715  -8  604  CQ IU3RUL JN66                        a1
112800  -7 1777  IU3RUL LY2KM -11 (x3)

20m

UTC    dB Audio  Message
085715 -10  996  IU3RUL DL1UDO JO31
085745 +11 1979  IU3RUL M0PBG R+00
085745  +3 2883  IU3RUL F4BYA JN19
085815  +6 1979  IU3RUL M0PBG 73
085815  +4 2883  IU3RUL F4BYA JN19
085815  -5  996  IU3RUL DL1UDO JO31
085845  +4 2883  IU3RUL F4BYA JN19 (x2)
085945  -5 1978  IU3RUL PD0PWH JO21
085945 +12 2353  IU3RUL LZ3CB KN32
085945 +12 2883  IU3RUL F4BYA R-11
090015  -9 1979  IU3RUL PD0PWH JO21
090015 +19 2353  IU3RUL LZ3CB KN32
090045  -9 1978  IU3RUL PD0PWH JO21
090045 +15 2353  IU3RUL LZ3CB KN32

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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