IU3QJF — 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: JN65

Receiver-side FT8 activity involving IU3QJF, decoded by SO8OO in southeastern Poland. 376 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-07.

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 376 FT8 messages attributed to IU3QJF as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (9%) and 80 m (6%). Most decodes (51%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.2 dB.

Overview

376

Messages attributed

UTC dates decoded

121

Active 15-min windows

-14.2 dB

Estimated median S/N

Bands

160m · 4 80m · 22 60m · 15 40m · 32 20m · 299 10m · 4

First attributed message: 2026-06-12
Last attributed message: 2026-11-07 04:19 UTC

Observed FT8 message patterns

Attributed sample: 376 messages
Active dates: 50 UTC dates
Estimated median S/N: -14.2 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 165, moderate (-15 to -9 dB) 147, strong (≥ -8 dB) 64.

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 IU3QJF in decoded directed-looking exchanges:

F4IVG · France ×2 9A5E · Croatia 7Z1BQ · Saudi Arabia DH1HF · Fed. Rep. of Germany DK3HV · Fed. Rep. of Germany F6EAZ · France PE9JAN · Netherlands R1WBW · European Russia EX7CQ · Kyrgyzstan GM7JQK · Scotland HA7TM · Hungary LZ2VQ · Bulgaria

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 IU3QJF

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: JN65 · 223 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-11-07 04:18 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	IU3QJF S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-07 04:52	160m	- / -9	F1PBZ	-7 / -	5	Partial capture
11-07 04:33	160m	- / -	DF4WQ	-4 / -	7	Partial capture
11-07 04:24	160m	- / -	DF4WQ	-2 / -	5	Partial capture
11-07 04:18	160m	-19 / -16	9A5E	-13 / -17	4	✓ Full exchange observed
11-07 04:14	160m	-21 / -	SP5EXA	+6 / -16	7	Partial capture
11-07 04:13	160m	- / -	DF4WQ	-6 / -	3	Partial capture
11-07 04:08	160m	-24 / -14	DK7ZT	-2 / -13	7	Partial capture
11-05 06:28	40m	- / -14	LZ2VQ	-18 / -	4	✓ Closing fragment
11-05 06:25	40m	- / -16	PD1DBL	-10 / -	4	✓ Closing fragment
11-05 06:24	40m	- / -	LZ2VQ	-18 / -	3	Partial capture
11-05 06:13	40m	- / -	LZ2VQ	-16 / -	2	Partial capture
11-05 06:10	40m	- / -14	DJ0MAB	-8 / -	5	Partial capture
10-26 19:22	80m	-24 / -24	DL1UDO	-4 / -3	5	Partial capture
10-26 19:18	80m	- / -	OK1UOZ	+17 / -	6	Partial capture
10-26 19:14	80m	- / -14	9A4ZM	+2 / -	2	✓ Closing fragment
10-26 19:12	80m	- / -8	DO9SAM	0 / -	3	✓ Closing fragment
10-26 19:12	80m	- / -15	F1PBZ	+3 / -	4	Partial capture
10-26 19:11	80m	- / -	DK1HSI	-8 / -	10	Partial capture
10-26 19:04	80m	- / -10	F6BHK	-8 / -	3	Partial capture
10-26 18:56	80m	-9 / -	DL2MEL	-8 / -16	3	✓ Closing observed
10-26 18:52	80m	- / -12	SV2ROC	-20 / -	4	✓ Closing fragment
10-26 18:45	80m	- / -17	YO4NF	-2 / -	2	Partial capture
10-10 05:43	40m	- / -12	DK7ZT	-9 / -	4	Partial capture
10-04 00:02	40m	- / -5	GM7JQK	-13 / -	5	✓ Closing fragment
10-03 23:15	40m	- / -17	EX7CQ	-10 / -	2	✓ Closing fragment
10-03 03:51	60m	-19 / -	PC2F	- / -15	3	Partial capture
10-03 03:42	60m	-17 / -12	LY8O	+4 / -	12	✓ Closing observed
10-03 03:36	60m	-14 / -14	OH3JF	-6 / -	9	Partial capture
10-03 03:34	60m	-14 / -	OH2BGD	- / -	2	Partial capture
10-03 03:30	60m	-18 / -	DD6ZV	- / -15	2	✓ Closing fragment
10-03 03:29	60m	- / -	ON7KEI	-10 / -	3	Partial capture
10-03 03:23	60m	-18 / 0	DL5DQZ	-15 / -12	7	✓ Full exchange observed
10-03 03:23	60m	- / -	F5MXH	-4 / -	2	Partial capture
10-03 03:22	60m	-16 / +3	SV4LGX	-12 / -	4	✓ Closing observed
10-03 03:16	80m	-12 / -	R3DCX	- / -	6	Partial capture
10-03 03:13	80m	-18 / -5	PE1NAO	-6 / -14	3	✓ Full exchange observed
09-13 06:07	40m	- / -	YO6LM	+14 / -	2	Partial capture
09-13 06:03	40m	-21 / -15	HG8LXL	-8 / -9	7	Partial capture
09-13 05:52	40m	-16 / -	UX7QV	- / -9	5	Partial capture
09-13 05:51	40m	- / -	HG8LXL	-4 / -	3	Partial capture
09-13 05:47	40m	-19 / -	PA3CPS	-13 / 0	2	✓ Closing observed
09-10 06:10	60m	- / -17	F5OZC	-15 / -	2	Partial capture
09-10 06:07	60m	- / -16	F5RMK	-20 / -	2	Partial capture
09-10 06:02	60m	- / -24	I3QDK	-14 / -	6	Partial capture
09-09 06:05	40m	- / -	F5PBG	-13 / -	4	Partial capture
09-06 04:55	40m	-23 / -	Z68BR	- / -2	2	Partial capture
09-06 04:54	40m	- / -	TA3NK	-9 / -	10	Partial capture
09-05 06:13	40m	- / -13	PA2RO	-11 / -	3	Partial capture
09-05 06:03	40m	-22 / -	HA7TM	-6 / +4	4	✓ Closing observed
09-05 06:03	40m	- / -	PE1NPS	-9 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
042545  +0 2482  IU3QJF DF4WQ JN39 (x10)
045200 -14 2552  IU3QJF F1PBZ -09 (x5)

40m

UTC    dB Audio  Message
061200  -4 1990  IU3QJF DJ0MAB R-14 (x2)
061330 -16 1991  IU3QJF LZ2VQ KN23 (x3)
062500 -16 1584  IU3QJF PD1DBL JO22
062500 -16 1991  IU3QJF LZ2VQ KN23
062530 -12 1583  IU3QJF PD1DBL JO22
062530 -19 1991  IU3QJF LZ2VQ KN23
062600  -6 1583  IU3QJF PD1DBL R-16 (x2)
062800 -19 1991  IU3QJF LZ2VQ R-14 (x4)

80m

UTC    dB Audio  Message
191615  -7  279  IU3QJF DK1HSI JN49
191815 +18 2709  IU3QJF OK1UOZ JO70 (x6)
192230 -19 1923  CQ IU3QJF JN65
192245  +6 2176  IU3QJF IQ4JO JN63
192245  -2 1809  IU3QJF DL1UDO JO31
192300 -21 1923  CQ IU3QJF JN65
192315  -6 1809  IU3QJF DL1UDO JO31
192330 -24 1923  DL1UDO IU3QJF -03
192345  -4 1809  IU3QJF DL1UDO R-24 (x2)

60m

UTC    dB Audio  Message
034200  +5 1084  IU3QJF LY8O -12
034215 -18 1085  LY8O IU3QJF JN65
034230  +3 1084  IU3QJF LY8O -12 (x3)
034345 -15 1085  LY8O IU3QJF JN65
034400  +2 1084  IU3QJF LY8O -12 (x5)
034645 -19 1085  LY8O IU3QJF 73
035145 -19 1085  PC2F IU3QJF -15 (x3)

20m

UTC    dB Audio  Message
164630  -7 1665  EY7BP IU3QJF JN65
164645 -18 1662  IU3QJF EY7BP -17
164700  -2 1665  EY7BP IU3QJF JN65
164745 -13 1663  IU3QJF EY7BP -17
164815 -10 1941  IU3QJF F4IVG -11 (x3)
164930 -15 1665  F4IVG IU3QJF R-25
164945  -4 2311  IU3QJF F4IVG RR73 (x2)
163145 -14 1564  CQ IU3QJF JN65                        a1
163400 -10 2128  IU3QJF RU3QR -13
055630 -11  368  IU3QJF RW9AD MO05 (x2)
051645 -22 1787  IU3QJF UA4POO -15

10m

UTC    dB Audio  Message
161330 -10 1583  IU3QJF GJ0KYZ -24
162245 -24 1907  IU3QJF F2JD -08 (x3)

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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