IW3RBX — 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 IW3RBX, decoded by SO8OO in southeastern Poland. 126 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-10-18.

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 126 FT8 messages attributed to IW3RBX as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 60 m (7%) and 20 m (1%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

126

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

60m · 9 40m · 116 20m · 1

First attributed message: 2026-08-11
Last attributed message: 2026-10-18 19:41 UTC

Observed FT8 message patterns

Attributed sample: 126 messages
Active dates: 12 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 77.

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 IW3RBX in decoded directed-looking exchanges:

EA3HMM · Spain ×2 IQ0YA · Italy ×2 IQ4JO · Italy ×2 G4DBW · England 5Q1X · Denmark AN5CV · Spain AO5CV · Spain EA1IOK · Spain F6FHZ · France G8KHF · England HB9ZHK · Switzerland IQ0AAX · Italy

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 IW3RBX

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 · 81 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 821 km (approx.)
Last such locator decoded: 2026-10-18 19:40 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	IW3RBX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 19:40	60m	-8 / -	SM2OTU	- / -12	2	Partial capture
10-18 19:40	60m	-4 / +1	ON7GB	0 / 0	7	✓ Full exchange observed
10-18 19:37	60m	-1 / -	IQ3TR	- / -	2	Partial capture
10-18 13:53	40m	-10 / -	HB9ZHK	- / -13	2	✓ Closing fragment
10-18 13:51	40m	-9 / -	IQ3TR	- / -	2	Partial capture
10-18 13:50	40m	-12 / -	DJ2MS	- / -	2	Partial capture
10-18 13:08	40m	-13 / -	G8KHF	- / -9	3	✓ Closing fragment
10-13 19:28	60m	+1 / -1	IQ3TR	+8 / -	3	Partial capture
10-11 16:14	40m	0 / -	RU0LL/P	- / -9	2	Partial capture
10-10 16:59	40m	+4 / +6	EA3HMM	+2 / -7	8	✓ Full exchange observed
10-10 16:58	40m	+2 / -	IQ2AAH	-1 / -5	5	✓ Full exchange observed
10-10 11:35	40m	-18 / -	IQ8DO	- / -4	2	✓ Closing fragment
10-09 22:00	40m	-6 / -	AM5TV	- / -	4	Partial capture
10-09 21:48	40m	-8 / -	IR8PR	- / -9	3	Partial capture
10-09 21:00	40m	-10 / -	EA3HMM	-7 / -	2	✓ Closing observed
10-09 20:57	40m	-14 / +4	AO5CV	-12 / -	3	✓ Closing observed
10-09 20:51	40m	-14 / -	IQ8DO	- / -	2	Partial capture
10-09 20:38	40m	-14 / -1	AN5CV	-10 / -	3	✓ Closing observed
10-09 17:32	40m	-3 / -	IQ2AAH	- / -	3	Partial capture
10-09 17:31	40m	-3 / -	IQ9SZ/2	- / -	2	Partial capture
10-09 17:29	40m	-4 / -	ZL1RPC/P	- / -	2	Partial capture
10-09 17:26	40m	-3 / -	ZL1RPC/P	- / -	3	Partial capture
10-07 19:17	40m	-17 / -	IR8PR	- / -14	2	Partial capture
10-05 19:55	40m	-11 / -	IQ0YA	- / -	4	Partial capture
10-05 19:52	40m	-1 / -	DA125RH	- / -14	3	Partial capture
10-04 20:26	40m	-1 / -	IQ9SZ	- / -	4	Partial capture
10-04 20:23	40m	+1 / +6	IQ0AAX	+1 / -8	6	✓ Full exchange observed
10-03 20:06	40m	-1 / -	IQ6MW	- / -	4	Partial capture
10-03 20:04	40m	+1 / -	IQ2AAH	- / -	3	Partial capture
10-03 19:57	40m	+2 / -	IQ2AAH	- / -	4	Partial capture
10-03 19:34	40m	+4 / -	IQ2AAH	- / -	3	Partial capture
10-03 16:45	40m	+3 / -	IQ4JO	+10 / +1	5	✓ Full exchange observed
10-03 16:39	40m	-1 / -1	IQ0YA	-7 / -4	14	✓ Full exchange observed
10-02 16:59	40m	-9 / +2	F6FHZ	-16 / -9	8	✓ Full exchange observed
10-02 16:53	40m	-8 / -	EA1IOK	- / -18	2	✓ Closing fragment
10-02 16:51	40m	-10 / -	5Q1X	- / -12	3	✓ Closing fragment
09-22 21:26	40m	- / -	PD0LBY	-10 / -	4	Partial capture
09-12 21:20	40m	-14 / -	II9IAGM	- / -11	4	Partial capture
08-11 09:44	20m	- / -	G4DBW	-8 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
192830  +2 1413  IQ3TR IW3RBX JN65
193015  +8  616  IW3RBX IQ3TR -01
193715  -2 1478  IQ3TR IW3RBX JN65 (x2)
193900  -6 1893  IW3RBX LZ936BA +16
193915  -4 1478  HB9SWR/P IW3RBX R-07
194000  +0 2017  IW3RBX ON7GB JO21
194015 -10 1478  SM2OTU IW3RBX JN65
194030  +1 2017  IW3RBX ON7GB JO21
194045  -4 1478  ON7GB IW3RBX +00
194100  +1 2018  IW3RBX ON7GB R+01
194115  -7 1478  SM2OTU IW3RBX R-12
194130  -1 2017  IW3RBX ON7GB R+01
194145  -3 1478  ON7GB IW3RBX RR73
194200  +0 2018  IW3RBX ON7GB 73

40m

UTC    dB Audio  Message
170145  +7  395  IW3RBX EA3HMM 73
143245 -11 1546  IR8PR IW3RBX R-09
161415  +2 1452  RU0LL/P IW3RBX JN65
161430  -1 1506  IW3RBX IQ9SZ/2 -03
161445  -1 1452  RU0LL/P IW3RBX R-09
130815 -15 1483  G8KHF IW3RBX JN65 (x3)
135000 -11 1483  DJ2MS IW3RBX JN65 (x2)
135100  -9 1483  IQ3TR IW3RBX JN65 (x2)
135230 -13 1483  CQ IW3RBX JN65                        a1
135300 -14 1483  HB9ZHK IW3RBX -13 (x2)

20m

UTC    dB Audio  Message
094330 -24 1906  OZ9FF IW3RBX R-18
094415 -12 2353  IW3RBX G4DBW JO01 (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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