EI0CZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ireland Most frequent locator attributed to this token: IO52

Receiver-side FT8 activity involving EI0CZ, decoded by SO8OO in southeastern Poland. 153 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 153 FT8 messages attributed to EI0CZ as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 80 m (26%) and 160 m (22%). Most decodes (88%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

153

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 34 80m · 40 40m · 61 20m · 18

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 00:08 UTC

Observed FT8 message patterns

Attributed sample: 153 messages
Active dates: 11 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -14 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 91.

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 EI0CZ in decoded directed-looking exchanges:

DH2YBG · Fed. Rep. of Germany EI9JF · Ireland F1PBZ · France GM6URC · Scotland OK1DXR · Czech Republic UA3GX · European Russia OK1WE · Czech Republic JT1A · Mongolia N4EC · United States SV9QWC · Crete DK2MAX · Fed. Rep. of Germany EA5HM · Spain

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 EI0CZ

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: IO52 · 61 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,147 km (approx.)
Last such locator decoded: 2026-09-19 00:08 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	EI0CZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 00:01	160m	-13 / -	RI1FJZ	- / -	5	Partial capture
09-18 23:55	160m	-11 / -	RI1FJZ	- / -	4	Partial capture
09-18 23:48	160m	-20 / -	RI1FJZ	- / -	2	Partial capture
09-18 23:39	80m	-6 / -15	9A60CBM	-2 / -5	3	Partial capture
09-18 23:38	80m	- / -17	RQ6B	+12 / -	4	Partial capture
09-18 23:37	80m	-14 / -	N1WI	- / -22	2	✓ Closing fragment
09-18 23:34	80m	- / -	RD9M/3	-9 / -	12	✓ Closing fragment
09-18 23:33	80m	-9 / -12	EW4DX	-8 / -12	9	✓ Full exchange observed
09-18 23:33	80m	- / -	ON1JP	-16 / -	2	✓ Closing fragment
09-18 23:30	80m	- / -5	IU2VBP	-8 / -	3	Partial capture
09-18 23:29	80m	- / -13	RD9M/3	-4 / -	2	Partial capture
09-18 23:29	80m	-16 / -	SK3GA	- / -20	2	✓ Closing fragment
09-18 23:27	80m	-15 / -13	RY3F	0 / -4	4	✓ Full exchange observed
09-18 23:25	80m	-9 / +6	DK2MAX	+2 / -4	6	✓ Full exchange observed
09-18 23:25	80m	-11 / -15	UX7QV	+7 / -5	5	✓ Full exchange observed
09-18 23:22	80m	-13 / -8	RN2F	+7 / +3	6	✓ Full exchange observed
09-18 23:11	80m	-3 / -	RI1FJZ	- / -	3	Partial capture
09-04 22:30	160m	-10 / -	RI1FJL	- / -	2	Partial capture
09-03 22:37	160m	-10 / -3	OK1DXR	-6 / 0	4	✓ Full exchange observed
09-03 22:30	160m	-11 / -	CT2GQA	- / -24	4	Partial capture
09-03 22:28	160m	-11 / -	GM6URC	- / -9	2	✓ Closing fragment
09-03 22:14	40m	-6 / -16	JT1A	-24 / -9	4	✓ Full exchange observed
09-03 22:11	40m	-2 / -	PY3TX	- / -	2	Partial capture
09-03 22:09	40m	-4 / -	D2ACE	- / -	2	Partial capture
09-03 22:07	40m	-1 / -	N4EC	- / -10	4	✓ Closing fragment
09-03 22:06	40m	-6 / -	SV9QWC	- / -2	2	✓ Closing fragment
09-03 21:52	80m	-3 / -	RI1FJL	- / -11	7	Partial capture
08-30 22:30	160m	- / -10	F1PBZ	-2 / -	2	✓ Closing fragment
08-30 22:30	160m	- / -15	UA3GX	+6 / -	5	✓ Closing fragment
08-30 16:05	20m	-9 / -	RI1FJL	- / -2	4	Partial capture
08-29 23:09	40m	+6 / -	RI1FJL	- / -	4	Partial capture
08-26 22:54	80m	+2 / -8	RA3WY	+2 / -	4	✓ Closing observed
08-26 22:52	80m	-8 / -9	EA5HM	-22 / +7	7	✓ Full exchange observed
08-26 22:51	80m	+2 / +2	HB3YBG	-9 / +3	7	✓ Full exchange observed
08-26 22:51	80m	- / -	SN40KZE	+4 / -	2	Partial capture
07-18 10:41	20m	-11 / +6	OK1WE	-4 / +3	10	✓ Full exchange observed
07-18 10:38	20m	- / -12	R4FDW	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
223045 -13 2956  RI1FJL EI0CZ IO52 (x2)
234845 -21 1893  RI1FJZ EI0CZ IO52 (x12)
001000 -19 2010  EI0CZ EA5RU IM99

80m

UTC    dB Audio  Message
233700 -17 2263  N1WI EI0CZ -22
233715  -7 1932  EI0CZ RD9M/3 RR73
233730 -11 2263  N1WI EI0CZ RR73
233745 -11 1932  EI0CZ RD9M/3 RR73
233845 +15  595  EI0CZ RQ6B KN94
233845 -11 1932  <EI0CZ> RD9M/3 RR73 (x2)
233915  -8 1863  9A60CBM EI0CZ IO52
233930  -2 1864  EI0CZ 9A60CBM -15
233945  -6 1932  <EI0CZ> RD9M/3 RR73
233945  -4 1863  9A60CBM EI0CZ R-05
234015 +11  595  EI0CZ RQ6B KN94
234045 -10 1932  EI0CZ RD9M/3
234115 +11  595  EI0CZ RQ6B KN94 (x2)

40m

UTC    dB Audio  Message
220730  +4  306  N4EC EI0CZ IO52 (x4)
220930  -4 2437  D2ACE EI0CZ IO52 (x2)
221130  -3 1267  PY3TX EI0CZ IO52 (x2)
221430  -5 2207  JT1A EI0CZ IO52
221445 -24 2207  EI0CZ JT1A -16
221500  -7 2207  JT1A EI0CZ R-09 (x2)
221730  -1 2438  D2ACE EI0CZ IO52 (x2)
221915  +5  445  RI1FJL EI0CZ R+14

20m

UTC    dB Audio  Message
103900 -18 1902  EI0CZ R4FDW -12
104100  -5 1469  EI0CZ OK1WE JO70 (x7)
104415 -12 1233  OK1WE EI0CZ +03
104430  -5 1469  EI0CZ OK1WE R+06
104445 -10 1233  OK1WE EI0CZ RR73
160515 -11 2310  RI1FJL EI0CZ IO52 (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.

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