IU4WSH — 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: JN44

Receiver-side FT8 activity involving IU4WSH, decoded by SO8OO in southeastern Poland. 535 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-22.

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 535 FT8 messages attributed to IU4WSH as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 20 m (20%) and 10 m (4%). Most decodes (85%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -5 dB.

Overview

535

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 4 60m · 8 40m · 395 20m · 109 10m · 19

First attributed message: 2026-08-21
Last attributed message: 2026-10-22 18:59 UTC

Observed FT8 message patterns

Attributed sample: 535 messages
Active dates: 30 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -14 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 147, strong (≥ -8 dB) 358.

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 IU4WSH in decoded directed-looking exchanges:

EX7CQ · Kyrgyzstan ×2 YO6LM · Romania ×2 F1PBZ · France ×2 F5PBG · France ×2 HA7TM · Hungary ×2 PC2F · Netherlands ×2 OZ6P · Denmark ×2 CT3MD · Madeira Islands HG8LXL · Hungary LY2BBF · Lithuania UX3HX · Ukraine SP3CUG · 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 IU4WSH

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: JN44 · 327 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,137 km (approx.)
Last such locator decoded: 2026-10-22 18:58 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	IU4WSH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 18:58	40m	+8 / -	DD3ZZ	- / -7	3	✓ Closing fragment
10-13 19:22	40m	+2 / +6	OH7BDI	-5 / -5	5	✓ Full exchange observed
10-13 19:18	40m	+2 / -1	4L6EZ	-9 / -3	3	✓ Full exchange observed
10-13 19:12	40m	+2 / -	OS4K	-4 / -3	7	✓ Full exchange observed
10-13 19:12	40m	+1 / -12	PA7D	-7 / -5	10	✓ Full exchange observed
10-13 19:09	40m	+2 / -	DH5BM	0 / -3	4	✓ Closing observed
10-11 17:04	40m	-2 / -	IR8PR	- / -16	3	Partial capture
10-09 20:26	40m	+6 / -	EY7BM	- / -11	6	Partial capture
10-09 20:22	40m	+2 / -18	SP9UPH	+4 / -	4	✓ Closing observed
10-09 20:21	40m	0 / -	AN5CV	-6 / -2	6	✓ Full exchange observed
10-09 20:15	40m	-2 / -	EA5HM	- / -12	6	Partial capture
10-07 17:25	40m	- / -	S51PV	-12 / -	2	Partial capture
10-07 17:23	40m	+2 / -10	R3DHP	+1 / -	8	✓ Closing observed
10-07 17:22	40m	+6 / -	ZL1VAH	- / -16	2	Partial capture
10-06 13:36	40m	-4 / -	DK4REX	-11 / -4	3	✓ Closing observed
10-06 08:19	40m	-1 / -	IU8RFW	- / -7	2	✓ Closing fragment
10-06 08:17	40m	-10 / -	PA3GHJ	- / +1	2	Partial capture
10-05 20:00	40m	+4 / -	DL4DP	- / -6	4	✓ Closing fragment
10-05 19:58	40m	+7 / -	PY7XC	- / -13	3	✓ Closing fragment
10-05 19:51	40m	+7 / -	A99AA	- / -12	13	Partial capture
10-05 19:48	40m	+9 / 0	F5MXH	+1 / -	4	✓ Closing observed
10-05 19:46	40m	+6 / +1	PA1RGX	-8 / +2	7	✓ Full exchange observed
10-05 19:45	40m	+8 / +10	EA3KE	-2 / -3	5	✓ Full exchange observed
10-05 19:44	40m	+6 / -	HA7TM	- / -6	2	✓ Closing fragment
10-05 19:32	40m	+2 / -	A99AA	- / -	18	Partial capture
10-03 23:07	40m	- / -13	UA9SY	-12 / -	3	Partial capture
10-03 22:59	40m	- / +2	MM7FTH	+2 / -	3	✓ Closing fragment
10-03 22:32	40m	-6 / -	C31CT	- / -	11	Partial capture
10-03 22:29	40m	-8 / -	WA6GXQ	- / -	2	Partial capture
10-03 22:26	40m	-9 / -	NP4PR	- / -7	3	✓ Closing fragment
10-03 22:24	40m	-10 / -	CS8ABF	- / -	2	✓ Closing fragment
10-03 22:20	40m	-5 / -	AP5ARS	- / -	5	Partial capture
10-03 22:18	40m	-6 / -	YC2BUZ	- / -	4	Partial capture
10-03 22:16	40m	-11 / -	TJ1GD	- / -15	2	Partial capture
10-03 22:13	40m	0 / -	AD8IF	- / -	3	Partial capture
10-03 22:12	40m	-6 / -	ES4TRI	- / 0	3	✓ Closing fragment
10-03 22:06	40m	-4 / -	XV9B	- / -	10	Partial capture
10-03 22:04	40m	-2 / -	N8SNM	- / -	4	Partial capture
10-03 21:56	40m	-4 / -	UN7PPV	- / -	8	Partial capture
10-03 21:54	40m	-1 / -	7Z1IS	- / -11	4	✓ Closing fragment
10-03 21:53	40m	-1 / -	BG4UVR	- / -17	2	✓ Closing fragment
10-03 21:51	40m	0 / 0	EX7CQ	-12 / -9	5	✓ Full exchange observed
10-03 21:48	40m	-2 / -11	G0RVY	+5 / -6	6	✓ Full exchange observed
10-03 21:47	40m	-2 / -	UA9CR	- / -9	2	✓ Closing fragment
10-03 21:46	40m	+3 / -	AA4SS	- / -21	3	✓ Closing fragment
10-03 12:34	10m	- / -14	EP2AES	-20 / -	3	Partial capture
10-02 21:02	40m	-7 / -	HI8WJI	- / -	3	Partial capture
10-02 20:32	40m	+12 / -	VJ6X	- / -8	4	✓ Closing fragment
10-02 20:29	40m	+12 / -	BU2FF	- / -12	3	✓ Closing fragment
10-02 20:26	40m	+9 / -	VK2LAW	- / -	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
182630 -19 1666  IU4WSH LZ936BA +04
182730  -7  486  IU4WSH F4BJN JN25 (x3)
182900 -11 1773  IU4WSH SM7IUN -11 (x2)
183000  +2 1967  IU4WSH F5RRS JN36
183030  -4 2167  IU4WSH IK4CBO JN54
183030  +2 1967  IU4WSH F5RRS R-07 (x2)
183130  +1 2167  IU4WSH IK4CBO R-06 (x2)
183245 -16 1760  IU4WSH SV8NAJ -22 (x2)
200830  +2 1529  IU4WSH DL1UDO 73

40m

UTC    dB Audio  Message
191515 -12  801  IU4WSH PA7D R-12
191530  -1  802  EA4IPN IU4WSH R-14
191815  -9  572  IU4WSH 4L6EZ -01
191830  +0  802  4L6EZ IU4WSH R-03 (x2)
192215  -9  802  IU4WSH OH7BDI +06 (x2)
192300  +1  802  OH7BDI IU4WSH R-05
192315  -2  802  IU4WSH OH7BDI RR73
192330  +3  802  OH7BDI IU4WSH 73
214315 -12 1928  CQ IU4WSH JN44                        a1
230415  -4  790  BG0FQU IU4WSH 73
185830  +4 2658  DD3ZZ IU4WSH JN44 (x3)

10m

UTC    dB Audio  Message
181900  -3  487  UX3HX IU4WSH +09 (x2)
185015 -19 1292  IU4WSH CT3MD +05 (x4)
212445 -10  986  V47JA IU4WSH JN44 (x2)
212700 -13 2570  PE1EBT IU4WSH JN44
190915 -24 1966  CQ IU4WSH JN44                        a1
114300 -11 1702  IU4WSH EX7CQ -03 (x2)
123415 -19 2216  IU4WSH EP2AES -14 (x3)

80m

UTC    dB Audio  Message
210130  -4  808  IU4WSH DO5HOK RR73
210230  +6 1876  IU4WSH DK7ZT -15 (x5)
221000 -17 2644  UN8DSW IU4WSH JN44
185730  -6 1112  IU4WSH DK7ZT -11 (x3)
183800 -19  454  M9DNC IU4WSH JN44 (x2)
183930 -15  454  CQ IU4WSH JN44

20m

UTC    dB Audio  Message
150215  -9 2651  OM2EVK IU4WSH R-14
150700 -14  419  IU4WSH RI1FJL +00
150715 -11 2651  RI1FJL IU4WSH R-05
151045  -9 2651  CQ IU4WSH JN44
151145  -4 2651  RI1FJL IU4WSH 73
151530 -10 2651  M0NRG IU4WSH JN44
151630 -15 2652  BU2FW IU4WSH JN44 (x2)
151915  -2 2652  HA1BF IU4WSH JN44 (x4)
152115  -7 2552  YL2TM IU4WSH JN44
152730  -5 2552  IU4WSH R9FDE -19 (x2)

160m

UTC    dB Audio  Message
210500  +3  954  IU4WSH SP3CUG JO82
210500  -1 2592  IU4WSH F1PBZ -11
210530  +8  954  IU4WSH SP3CUG JO82
210530  -7 2592  IU4WSH F1PBZ -11
210600  +9  954  IU4WSH SP3CUG R-23
210600  +0 2592  IU4WSH F1PBZ -11
210630  +6  954  IU4WSH SP3CUG R-23
210630  +1 2592  IU4WSH F1PBZ RR73
210700  +4  954  IU4WSH SP3CUG R-23 (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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