IU5QTD — 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: JN54

Receiver-side FT8 activity involving IU5QTD, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-10-08.

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 24 FT8 messages attributed to IU5QTD as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (38%), followed by 20 m (38%) and 40 m (17%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 2 60m · 9 40m · 4 20m · 9

First attributed message: 2026-08-09
Last attributed message: 2026-10-08 18:52 UTC

Observed FT8 message patterns

Attributed sample: 24 messages
Active dates: 5 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -22 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 2.

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 IU5QTD in decoded directed-looking exchanges:

HA7TM · Hungary ×2 M8FQT · England DD6ZV · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany DL7ARV · Fed. Rep. of Germany F1IQH · France IK4CBO · Italy IU3MDI · Italy OM3PR · Slovak Republic OM5JG · Slovak Republic ON7GB · Belgium OZ1SMB · Denmark

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 IU5QTD

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: JN54 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-10-08 18:50 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	IU5QTD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 18:07	60m	- / -15	ON6LEO	+7 / -	9	Partial capture
10-22 18:07	60m	- / -	DK3JW	+10 / -	4	Partial capture
10-22 18:01	60m	- / -	DK3JW	+10 / -	4	Partial capture
10-08 18:50	60m	-12 / -	OV5SP	-6 / -16	8	Partial capture
09-23 18:14	60m	- / -17	OZ1SMB	-12 / -	3	✓ Closing fragment
09-23 18:12	60m	- / -15	DD6ZV	+7 / -	5	✓ Closing fragment
09-16 19:33	60m	- / -5	IU3MDI	-12 / -	2	✓ Closing fragment
09-16 19:24	60m	- / -22	OM3PR	-7 / -	2	✓ Closing fragment
09-01 19:21	60m	- / -10	IK4CBO	-5 / -	3	✓ Closing fragment
08-29 21:01	60m	- / -	DL1MEV	-4 / -	6	Partial capture
08-29 21:01	60m	- / -	F5MYK	-4 / -	4	Partial capture
08-29 20:59	60m	- / -	9A5TW	-10 / -	2	Partial capture
08-29 20:59	60m	- / -	HA7TM	+7 / -	3	Partial capture
08-29 20:58	60m	- / -	YO6LM	0 / -	4	Partial capture
08-29 20:53	60m	- / -	ON7KEI	-15 / -	4	Partial capture
08-29 20:52	60m	- / -	HA7TM	+10 / -	2	Partial capture
08-29 20:47	60m	- / -	YO6LM	+2 / -	2	Partial capture
08-29 20:42	60m	- / -	DL1MEV	-6 / -	12	Partial capture
08-29 20:42	60m	- / -	YO6LM	0 / -	4	Partial capture
08-29 20:40	60m	- / -19	F1IQH	-9 / -	2	✓ Closing fragment
08-29 20:40	60m	- / -	F5MYK	-9 / -	4	Partial capture
08-29 20:38	60m	- / -	HA7TM	+15 / -	3	Partial capture
08-29 20:38	60m	- / -	YO6LM	-2 / -	2	Partial capture
08-29 20:30	60m	- / -	YO6LM	-2 / -	2	Partial capture
08-29 20:28	60m	- / -18	DL7ARV	+4 / -	3	✓ Closing fragment
08-29 20:22	60m	- / -	DD6ZV	-2 / -	6	Partial capture
08-29 20:20	60m	- / -24	DL1UDO	-3 / -	3	✓ Closing fragment
08-29 20:19	60m	- / -	HA7TM	+9 / -	4	Partial capture
08-29 20:14	20m	-20 / -	EA1/PE5X	- / -10	2	Partial capture
08-09 18:03	20m	-8 / -	HA7TM	- / -5	2	✓ Closing fragment
08-05 18:55	60m	- / -12	HA7TM	+13 / -	3	✓ Closing fragment
08-05 18:51	60m	- / -15	OM5JG	+3 / -	7	✓ Closing fragment
08-05 18:51	60m	- / -22	ON7GB	-10 / -	5	✓ Closing fragment
08-05 18:21	20m	- / -	PD2WL	-16 / -	8	Partial capture
08-05 18:06	20m	- / -	CR7BRV	-12 / -	2	Partial capture
08-02 19:16	80m	- / -17	DH2RL	-10 / -	2	Partial capture
08-02 19:12	80m	- / 0	<...>	-14 / -	2	Partial capture
07-31 18:41	10m	- / -	M8FQT	-9 / -	5	Partial capture
07-31 18:35	10m	- / -6	M8FQT	-10 / -	2	✓ Closing fragment
07-29 16:56	10m	- / -	R7OV	-15 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
180215  +7 2664  IU5QTD DK3JW JN67 (x3)
180745  +8 2089  IU5QTD ON6LEO -15 (x2)
180815 +13 2664  IU5QTD DK3JW JN67
180845  +6 2089  IU5QTD ON6LEO -15
180845  +6 2664  IU5QTD DK3JW JN67
180915  +7 2089  IU5QTD ON6LEO -15
180915 +10 2664  IU5QTD DK3JW JN67
180945  +8 2089  IU5QTD ON6LEO -15 (x5)

40m

UTC    dB Audio  Message
210530 -18  986  CQ IU5QTD JN54 (x3)
210930 -11  986  II7MGBR IU5QTD -08
185215  +6  427  IU5QTD S51XA JN75

80m

UTC    dB Audio  Message
191245 -18 1256  IU5QTD <...> +00 (x2)
191645  -8 1255  IU5QTD DH2RL R-17 (x2)
190130 -22 1582  ON5MX IU5QTD JN54
190430 -24 1458  HB3YOY IU5QTD JN54

20m

UTC    dB Audio  Message
182445 -20 1325  IU5QTD PD2WL JO22 (x2)
182945 -12  525  IU5QTD CR7BRV IM58
180345  -9  662  HA7TM IU5QTD -05 (x2)
180445  -7  662  DH1KU IU5QTD -06
180800 -13 1782  IU5QTD DH1KU R-07
201200 -22 1188  CQ IU5QTD JN54                        a1 (x2)
201245 -16 2578  IU5QTD F1PBZ +05
201300 -19 1187  CQ IU5QTD JN54 (x2)
201345 -14 2913  IU5QTD F4BYA JN19
201430 -18 1187  EA1/PE5X IU5QTD -10 (x2)

10m

UTC    dB Audio  Message
165615 -12  863  IU5QTD R7OV KN87 (x2)
181115 -13  766  IU5QTD G4CFS R-10
183545  -9  776  IU5QTD M8FQT R-06 (x7)

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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