IZ0DHC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN62

Receiver-side FT8 activity involving IZ0DHC, decoded by SO8OO in southeastern Poland. 113 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-09-06.

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 113 FT8 messages attributed to IZ0DHC as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 80 m (5%) and 40 m (4%). 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 -11 dB.

Overview

113

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 6 40m · 5 20m · 100 10m · 2

First attributed message: 2026-06-28
Last attributed message: 2026-09-06 21:29 UTC

Observed FT8 message patterns

Attributed sample: 113 messages
Active dates: 8 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 35.

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 IZ0DHC in decoded directed-looking exchanges:

2E0UMF · England 9A4ZM · Croatia DK4BP · Fed. Rep. of Germany DL1BBO · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany F1TXI · France F4BYA · France F5OYA/P · France G8IXM · England IZ0EAC · Italy OH1LA · Finland ON1DGN · Belgium

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 IZ0DHC

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: JN62 · 70 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,067 km (approx.)
Last such locator decoded: 2026-09-06 21:29 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	IZ0DHC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-06 21:23	40m	-9 / -	VP2MAA	- / -16	4	Partial capture
08-31 20:31	20m	- / -	G4DBW	+6 / -	2	Partial capture
08-31 20:24	20m	- / +2	M7JVT	+2 / -	6	Partial capture
08-31 20:21	20m	-2 / -	2E0UMF	- / -12	2	✓ Closing fragment
08-31 20:15	20m	-7 / -13	F5OYA/P	-8 / -11	10	✓ Full exchange observed
08-31 20:14	20m	- / -12	F4BYA	-8 / -	4	✓ Closing fragment
08-31 20:12	20m	- / -12	G4WJJ	-18 / -	2	Partial capture
08-31 20:10	20m	- / -	M7JVT	+2 / -	3	Partial capture
08-31 20:08	20m	-2 / -	IZ0EAC	-11 / -	2	✓ Closing observed
08-31 20:07	20m	- / -	OO0O	0 / -	2	Partial capture
08-31 20:03	20m	-6 / -	5Z4VJ	-1 / -11	4	Partial capture
08-31 20:03	20m	- / -	G8IXM	-1 / -	3	Partial capture
08-31 19:59	20m	-10 / -	W1JKN	- / -	4	Partial capture
08-28 19:42	20m	-4 / -	W1TF	- / -	2	✓ Closing fragment
08-28 19:41	20m	- / -	F4JZW	+18 / -	3	Partial capture
08-26 21:20	20m	-5 / -	N8DH	-20 / -14	6	Partial capture
08-26 21:18	20m	- / -	R7OV	-12 / -	3	Partial capture
08-14 19:00	20m	- / -	CR7BRV	-8 / -	3	Partial capture
08-14 18:48	20m	- / -	CR7BRV	-8 / -	2	Partial capture
08-14 18:43	20m	- / +4	F1TXI	-15 / -	5	✓ Closing fragment
08-14 18:37	20m	- / -	CR7BRV	-1 / -	3	Partial capture
08-14 18:35	20m	- / -	UA9SY	-24 / -	2	Partial capture
08-14 18:35	20m	-20 / -	UR5WCS	- / -10	2	Partial capture
08-14 18:33	20m	-18 / -	G8IXM	- / -14	2	Partial capture
08-14 18:26	20m	-16 / -	OH1LA	- / -15	3	✓ Closing fragment
08-14 18:24	20m	- / -	CR7BRV	-10 / -	3	Partial capture
08-14 18:21	20m	-13 / -	UA9SY	- / -13	2	Partial capture
08-14 18:19	20m	- / -	CR7BRV	-4 / -	3	Partial capture
08-14 18:15	20m	- / -	CR7BRV	-9 / -	4	Partial capture
08-14 18:14	20m	- / +5	F1PPH	-11 / -	4	Partial capture
08-14 18:08	20m	- / -	CR7BRV	-12 / -	7	Partial capture
08-14 18:06	20m	-10 / -	9A4ZM	- / -3	2	✓ Closing fragment
08-14 18:05	20m	-16 / -	DL1BBO	- / -9	2	✓ Closing fragment
08-14 18:04	20m	-14 / -	SP6FME	- / -10	2	✓ Closing fragment
08-14 18:03	20m	-13 / -	ON1DGN	- / -4	2	✓ Closing fragment
08-14 18:00	20m	- / -	RZ4FWA	-20 / -	3	Partial capture
08-07 20:48	20m	-14 / -	UA1AOF	- / -9	2	Partial capture
08-07 20:43	20m	- / -6	RN6MA	-12 / -	2	Partial capture
08-07 20:36	20m	-19 / -	W1WCI	- / -	2	Partial capture
07-26 09:56	20m	- / -16	DL1UDO	-8 / -	3	✓ Closing fragment
07-15 17:32	10m	-22 / -	<...>	- / -14	2	Partial capture
06-28 21:40	80m	- / -19	UA4FKT	+6 / -	4	✓ Closing fragment
06-28 21:39	80m	- / -16	DK7ZT	+5 / -	3	✓ Closing fragment
06-28 21:39	80m	-12 / -9	EA1IOK	-3 / 0	4	✓ Full exchange observed
06-28 21:38	80m	-13 / -16	EA8CVR	-22 / -4	5	✓ Full exchange observed
06-28 21:37	80m	-14 / -	RC6OD	- / -	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
212315  -8 1739  VP2MAA IZ0DHC JN62 (x4)
212900  -3 1739  DS4AOW IZ0DHC JN62

20m

UTC    dB Audio  Message
202230  -5 1344  DJ0MAB IZ0DHC -06
202445  -1 1230  IZ0DHC M7JVT IO94 (x6)
202730  -4 1345  CQ IZ0DHC JN62 (x2)
203100  -7 1345  ND4X IZ0DHC -11
203130  -4 1345  CQ IZ0DHC JN62
203145  +5 1930  IZ0DHC G4DBW JO01 (x2)
203400  -6 1345  CQ IZ0DHC JN62 (x2)

10m

UTC    dB Audio  Message
173215 -22 1728  <...> IZ0DHC JN62 (x2)

80m

UTC    dB Audio  Message
213815 -23 1779  IZ0DHC EA8CVR -16
213830 -12 1703  EA8CVR IZ0DHC R-04
213845 -22 1780  IZ0DHC EA8CVR RR73
213900  -9 1703  EA8CVR IZ0DHC 73
213915  -5  434  IZ0DHC EA1IOK IN62
213915  +3 1671  IZ0DHC DK7ZT -16
213930 -12 1703  EA1IOK IZ0DHC +00
213945  -2  435  IZ0DHC EA1IOK R-09
213945  +6 1671  IZ0DHC DK7ZT -16
214015  +8 1703  IZ0DHC UA4FKT LO23
214015  -2  435  IZ0DHC EA1IOK 73
214045  +6 1671  IZ0DHC DK7ZT RR73
214115  +7 1703  IZ0DHC UA4FKT LO23 (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.

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