IW5BT — 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: JN53

Receiver-side FT8 activity involving IW5BT, decoded by SO8OO in southeastern Poland. 292 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-14 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 292 FT8 messages attributed to IW5BT as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (35%), followed by 20 m (30%) and 60 m (26%). Most decodes (53%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

292

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 13 80m · 2 60m · 77 40m · 101 20m · 87 10m · 12

First attributed message: 2026-06-14
Last attributed message: 2026-10-18 23:56 UTC

Observed FT8 message patterns

Attributed sample: 292 messages
Active dates: 25 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 113, strong (≥ -8 dB) 142.

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 IW5BT in decoded directed-looking exchanges:

Z62NS · Republic of Kosovo ×2 LZ1VDK · Bulgaria ×2 DO9AO · Fed. Rep. of Germany EA5RU · Spain IS0KEB · Sardinia S57TW · Slovenia JH5AVM · Japan RI1FJL · Franz Josef Land SA3SHN · Sweden SM2LIY · Sweden TA3MPK · Asiatic Turkey DA0M · Fed. Rep. of Germany

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 IW5BT

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: JN53 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-10-18 22:16 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	IW5BT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 23:55	60m	-10 / -	S56P	- / -13	2	✓ Closing fragment
10-18 23:54	60m	-12 / -	SV4FFK	- / -9	2	✓ Closing fragment
10-18 22:17	60m	-10 / -	DL1WU	- / -20	4	✓ Closing fragment
10-18 22:16	60m	-12 / -5	SP5EXA	-11 / +2	4	✓ Full exchange observed
10-18 22:13	60m	-2 / -3	DH9DR	0 / 0	4	✓ Full exchange observed
10-18 22:13	60m	- / -	F5MXH	+2 / -	3	Partial capture
10-18 22:13	60m	- / -	LZ936BA	-13 / -	2	✓ Closing fragment
10-13 21:46	160m	-12 / -	IS0KEB	- / -10	2	✓ Closing fragment
10-13 21:43	160m	-10 / -9	EA5RU	-12 / -4	4	✓ Full exchange observed
10-13 21:35	160m	-14 / -	EC6AAE	- / +2	3	Partial capture
10-13 21:30	160m	-17 / -14	S57TW	+14 / -2	8	✓ Full exchange observed
10-13 17:49	40m	-3 / -	BG0FQU	- / -25	3	Partial capture
10-13 17:48	40m	0 / -	F4HSB	-17 / +3	3	✓ Closing observed
10-13 17:47	40m	+4 / -	DA0M	- / -13	2	✓ Closing fragment
10-13 17:32	40m	- / -	IU4PPL	-10 / -	2	Partial capture
10-13 17:31	40m	-12 / -	R4CHN	- / -14	2	Partial capture
10-13 17:30	40m	-10 / -	R9FDE	- / -21	2	Partial capture
10-13 17:29	40m	-8 / -9	R2ASY	+2 / -8	4	✓ Full exchange observed
10-13 17:27	40m	-2 / -	R8OAE	- / -16	2	✓ Closing fragment
10-13 17:21	60m	- / -	OZ5AGJ	-16 / -	2	Partial capture
10-13 17:20	60m	-2 / -3	I8OHQ	-17 / -7	4	✓ Full exchange observed
10-12 17:37	160m	-22 / -20	DO9AO	+16 / -10	5	✓ Full exchange observed
10-12 17:22	60m	-12 / +3	IV3IFN	-5 / -6	3	Partial capture
10-12 17:21	60m	- / +2	DL6MRM	-4 / -	2	✓ Closing fragment
10-12 17:19	60m	-15 / -6	LZ1VDK	-18 / -	3	✓ Closing observed
10-09 16:58	60m	-6 / -10	ER1CW	-14 / -16	5	✓ Full exchange observed
09-28 17:45	40m	-12 / -	SP6AMI	- / -8	2	✓ Closing fragment
09-28 17:43	40m	-13 / -14	RU4SO	-9 / -9	5	✓ Full exchange observed
09-28 17:40	60m	-4 / -	HB9EMX	- / -3	2	Partial capture
09-28 17:13	60m	-6 / -	G0AZH	-9 / -16	11	Partial capture
09-28 17:12	60m	-4 / -4	IZ2ACM	-7 / -4	5	✓ Full exchange observed
09-28 17:11	60m	- / -	DL9KM	-15 / -	7	Partial capture
09-28 17:08	60m	-7 / -6	DL1IP	-10 / -18	6	✓ Full exchange observed
09-17 17:25	60m	-15 / +1	DL2MEL	-11 / -15	5	✓ Full exchange observed
09-17 17:24	60m	-15 / +7	OM5ZW	+6 / +1	5	✓ Full exchange observed
09-14 17:26	60m	-8 / +1	II6IALU	-14 / -9	3	✓ Full exchange observed
09-14 16:52	40m	+1 / +7	OE8PIT	-1 / -11	5	✓ Full exchange observed
09-14 16:52	40m	+2 / -	IT9CBE	- / -13	2	✓ Closing fragment
09-14 16:46	40m	+10 / -	II9IAGM	- / +2	3	✓ Closing fragment
09-14 16:44	40m	+4 / -	SV1DKR	- / -7	2	✓ Closing fragment
09-14 16:42	40m	+5 / -	R6HV/P	- / -6	3	✓ Closing fragment
09-14 16:34	40m	+8 / -	VP5/K5UR	- / -2	6	✓ Closing fragment
09-14 16:29	40m	-3 / -	JH1GYR	- / -1	4	Partial capture
09-14 16:14	40m	+5 / -	YV4HMR	- / -4	2	Partial capture
09-14 16:09	40m	0 / -	ZL4PN	- / -11	5	Partial capture
09-10 22:19	60m	-14 / -	G4KVI	- / -16	4	Partial capture
09-10 22:17	60m	-16 / -	SP9TBT	- / -13	2	✓ Closing fragment
09-10 22:08	60m	-13 / -	SN40KZE	- / -19	3	Partial capture
09-10 22:07	60m	-10 / -	TF8KW	- / -	2	✓ Closing fragment
09-10 21:20	40m	-4 / -	VJ6X	- / -17	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
221430  +0 1326  IW5BT DH9DR 73
221615 -15 2131  CQ IW5BT JN53
221630 -10 2131  IW5BT SP5EXA KO02
221645 -11 2133  SP5EXA IW5BT +02
221700 -12 2131  IW5BT SP5EXA R-05
221715 -14 2133  SP5EXA IW5BT RR73
221730  -3 2132  IW5BT F5MXH JN07
221745 -12 2133  DL1WU IW5BT -20 (x4)
235415 -14 2133  SV4FFK IW5BT -09 (x2)
235545 -12 2134  S56P IW5BT -13 (x2)

160m

UTC    dB Audio  Message
213045 -15 1607  S57TW IW5BT RR73
213100 +13 2479  IW5BT S57TW R-14
213115 -14 1607  S57TW IW5BT RR73
213130 +13 2479  IW5BT S57TW R-14
213145 -20 1606  S57TW IW5BT RR73
213200 +13 2479  IW5BT S57TW R-14
213500 -14 1368  EC6AAE IW5BT +02 (x3)
214330 -10 1501  EA5RU IW5BT -04
214345  -9 1591  IW5BT EA5RU R-09
214400 -10 1501  EA5RU IW5BT RR73
214415 -14 1591  IW5BT EA5RU 73
214600 -10 1744  IS0KEB IW5BT -10 (x2)

40m

UTC    dB Audio  Message
173000 -10 2180  R9FDE IW5BT -21 (x2)
173100 -13 2180  R4CHN IW5BT -14 (x2)
173215 -11 2180  IW5BT IU4PPL JN54 (x2)
174645  +3 2671  YL3FW IW5BT RR73
174715  +4 2671  DA0M IW5BT -13 (x2)
174800 -17 1985  IW5BT F4HSB JN37
174815  +0 2671  F4HSB IW5BT +03 (x2)
174915  -1 2671  BG0FQU IW5BT -25 (x3)

80m

UTC    dB Audio  Message
211545 -18 1416  Z62NS IW5BT +00
211600 +10 1355  IW5BT Z62NS R-05
211615 -21 1416  Z62NS IW5BT RR73
211630  +6 1355  IW5BT Z62NS 73

10m

UTC    dB Audio  Message
093000 -18 1429  JE6WOQ IW5BT -15 (x4)

20m

UTC    dB Audio  Message
202100 -10 2004  JH5AVM IW5BT RR73
202415  +3  409  DL70ESSEN IW5BT -18 (x2)
202515 -11 1909  EA/SQ1DOZ IW5BT -18
131545 -10 2566  RI1FJL IW5BT -18 (x7)
132230  +4  421  IW5BT RI1FJL R-12
132245 -13 2131  RI1FJL IW5BT RR73 (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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