IU5TPM — 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 IU5TPM, decoded by SO8OO in southeastern Poland. 1,844 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 107 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.

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 1,844 FT8 messages attributed to IU5TPM as the transmitting token by decoded message structure across 107 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 40 m (28%) and 10 m (11%). The busiest six-hour window was 15:00-21:00 UTC, containing 37% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,844

Messages attributed

107

UTC dates decoded

503

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 109 60m · 2 40m · 515 20m · 1,016 10m · 202

First attributed message: 2026-06-07
Last attributed message: 2026-11-06 06:25 UTC

Observed FT8 message patterns

Attributed sample: 1,844 messages
Active dates: 107 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 373, moderate (-15 to -9 dB) 614, strong (≥ -8 dB) 857.

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 IU5TPM in decoded directed-looking exchanges:

GJ0KYZ · Jersey ×4 OE5HMR · Austria SP3DSC · Poland UT5VQ · Ukraine YO9ZIP · Romania 9A2DM · Croatia BU2FW · Taiwan CT2JJT · Portugal DA1EE · Fed. Rep. of Germany DA1JK · Fed. Rep. of Germany DC9JVN · Fed. Rep. of Germany DD5JC · 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 IU5TPM

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 · 1,085 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,089 km (approx.)
Last such locator decoded: 2026-11-06 06:25 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	IU5TPM S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 18:49	40m	-4 / -	LZ2SM	- / -2	3	✓ Closing fragment
11-05 02:41	40m	+8 / -	K4TMR	- / -	2	Partial capture
11-05 02:26	80m	-5 / -	K6RO	- / -	5	Partial capture
11-05 02:18	80m	-12 / -	N2OO	- / -	3	Partial capture
11-05 02:09	80m	- / -11	DL9KM	-9 / -	4	✓ Closing fragment
11-05 02:09	80m	0 / -	SP8HDC	-2 / -5	6	Partial capture
11-05 02:08	80m	-10 / -	LA1HW	- / -17	4	✓ Closing fragment
11-05 02:05	80m	-4 / -	W2MW	- / -	2	Partial capture
11-05 01:51	80m	+1 / -	NN2D	- / -	7	Partial capture
11-05 01:19	40m	-7 / -	W9ZPL	- / -	2	Partial capture
11-04 18:14	40m	- / -8	YO2MKE	-6 / -	4	✓ Closing fragment
11-02 18:23	40m	-15 / -	OE5FIL	- / -	4	Partial capture
11-02 17:55	40m	-5 / -	SP3LRS	- / -5	5	✓ Closing fragment
11-02 05:32	80m	+7 / -	DO2KST	- / -	3	Partial capture
11-02 05:17	80m	+1 / -	K4CEB	- / -	4	Partial capture
11-02 05:12	40m	-20 / -	SP9JBX	- / -	2	Partial capture
11-01 19:55	80m	-8 / -	SQ8AA	-12 / -6	3	Partial capture
11-01 19:41	40m	-12 / -	OM2DSW	- / -	2	Partial capture
11-01 19:33	40m	-11 / -	4S7AB	- / -2	2	Partial capture
11-01 19:11	40m	-11 / -	HB0PA	- / -	3	Partial capture
11-01 19:05	40m	-6 / -	HB0PA	- / -	3	Partial capture
11-01 18:22	40m	-3 / -	Z34K	- / -	3	Partial capture
10-31 03:38	80m	-6 / -5	9A6KBQ	0 / -	4	✓ Closing observed
10-28 20:10	80m	- / -9	OE6JCG	+3 / -	4	✓ Closing fragment
10-28 19:41	40m	0 / -	OK1XQ	- / -	2	Partial capture
10-28 18:54	80m	-12 / -13	YO4NT	+6 / +1	4	✓ Full exchange observed
10-28 18:50	80m	-10 / -17	SP3LPT	-1 / -12	9	✓ Full exchange observed
10-28 18:46	80m	-14 / +2	DK6HS	-3 / -	3	✓ Closing observed
10-28 18:19	40m	-12 / -	SV1PLJ	- / -14	2	✓ Closing fragment
10-28 02:38	40m	- / +6	SV5BYP	-12 / -	2	✓ Closing fragment
10-25 20:40	80m	-4 / -	SP8HDC	- / -	2	Partial capture
10-25 20:17	40m	-22 / -	SP8HDC	- / -	2	Partial capture
10-25 17:48	80m	-5 / -15	DO1FZL	-2 / -6	4	Partial capture
10-24 00:14	80m	- / -21	DO2BBC	+4 / -	3	✓ Closing fragment
10-24 00:14	80m	-1 / -	GM4KHE	-18 / -20	4	Partial capture
10-24 00:13	80m	+2 / -	DL4DP	- / -6	2	✓ Closing fragment
10-24 00:12	80m	+2 / -9	SN0EG	+5 / +4	5	✓ Full exchange observed
10-24 00:11	80m	-2 / -9	GM6URC	-10 / -3	4	✓ Full exchange observed
10-24 00:09	80m	+9 / -5	DK2LG	+4 / +7	5	✓ Full exchange observed
10-21 21:15	40m	-4 / -	DC1SN	- / -	2	✓ Closing fragment
10-21 18:27	40m	-17 / -	OM3CND	- / -	2	Partial capture
10-21 18:23	40m	-10 / -	OM3CND	- / -	2	Partial capture
10-19 19:57	40m	-2 / -	SP2ADI	- / +1	3	✓ Closing fragment
10-12 18:09	80m	- / -5	HB3YTK	-13 / -	2	✓ Closing fragment
10-12 17:26	40m	-10 / -	OM7OM	- / -	2	Partial capture
10-10 18:40	40m	0 / -	HS0ZOY	- / -	2	Partial capture
10-10 18:36	40m	+1 / -	SP2ZP	- / -	3	Partial capture
10-10 18:34	40m	0 / -	HS0ZOY	- / -	2	Partial capture
10-10 08:31	40m	- / -13	SQ9PBR	-5 / -	3	✓ Closing fragment
10-08 17:37	40m	-12 / -4	HB9SPACE	-3 / -	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
182445 -11 1722  OE5FIL IU5TPM JN53 (x2)
181430  -7 1582  IU5TPM YO2MKE KN05 (x4)
011915  -6  801  W9ZPL IU5TPM JN53 (x2)
012230 -17 1726  VU2KPH IU5TPM JN53
024115 +10 2812  K4TMR IU5TPM JN53 (x2)
184945  -1 1179  LZ2SM IU5TPM JN53 (x3)
062500  -5 2342  DL5XU IU5TPM JN53

80m

UTC    dB Audio  Message
021030  -5 1751  IU5TPM DL9KM R-11
021100  -3  690  IU5TPM SP8HDC KO00
021100  -2 1751  IU5TPM DL9KM 73
021115  -9  690  SP8HDC IU5TPM -05 (x2)
021815 -12  206  N2OO IU5TPM JN53 (x3)
022400 -18 2031  N4TD IU5TPM JN53
022645  -8 1229  K6RO IU5TPM JN53 (x5)
023345 -13 1641  W4GGJ IU5TPM JN53

60m

UTC    dB Audio  Message
202145 -17  886  S9R IU5TPM -09 (x2)

10m

UTC    dB Audio  Message
103830 -15 2041  OE5HMR IU5TPM R-15 (x2)
103945 -23 1737  IU5TPM PE9JAN JO22
104000 -19 2009  UT5VQ IU5TPM R+08 (x2)
104045 -20 1737  IU5TPM PE9JAN JO22
104100 -17 1738  PE9JAN IU5TPM +18
113315 -12 2223  SP3DSC IU5TPM JN53 (x3)
095400 -11 1997  SP3Q IU5TPM +20 (x4)
144145 -22 1883  IU5TPM EA5JKM -15

20m

UTC    dB Audio  Message
180415  +2  772  FR5FK IU5TPM JN53
180630  +2 2667  OE3CMW IU5TPM JN53 (x6)
153030  -9 1958  EI3KE IU5TPM JN53
160115 -12 1520  <...> IU5TPM JN53 (x4)
195715  -3 2428  OM2IDN IU5TPM JN53
090230  +3 2145  SP3Q IU5TPM JN53 (x2)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee