CT1EMI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Portugal Most frequent locator attributed to this token: IM57

Receiver-side FT8 activity involving CT1EMI, decoded by SO8OO in southeastern Poland. 135 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-17.

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 135 FT8 messages attributed to CT1EMI as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 40 m (9%) and 60 m (7%). Most decodes (50%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (70%); the estimated median was -18 dB.

Overview

135

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 5 60m · 10 40m · 12 20m · 107 10m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-09-17 22:37 UTC

Observed FT8 message patterns

Attributed sample: 135 messages
Active dates: 37 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -24 to -14 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 95, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 6.

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 CT1EMI in decoded directed-looking exchanges:

BG4UCZ · China ×2 CE2SV · Chile 7X2KF · Algeria 7Z1IS · Saudi Arabia A41KB · Oman A93MO · Bahrain BG5GEB · China BI6AN · China CN2DX · Morocco CS8ABF · Azores DS2NSC · Republic of Korea F1PSX · France

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 CT1EMI

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: IM57 · 79 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,806 km (approx.)
Last such locator decoded: 2026-09-17 22:36 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	CT1EMI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 22:48	60m	- / -	LZ2VQ	+2 / -	3	Partial capture
09-19 22:47	60m	- / +3	EC3A	-18 / -	2	✓ Closing fragment
09-17 22:36	40m	-20 / -14	HZ1TT	-9 / -13	7	Partial capture
09-17 22:25	60m	- / -	DL1IGB	-22 / -	2	Partial capture
09-17 22:22	60m	- / -	DL1CC	-3 / -	5	Partial capture
09-17 22:22	60m	- / -	LZ2VQ	0 / -	3	Partial capture
09-17 22:21	60m	- / -	DL1IGB	-23 / -	2	Partial capture
09-17 22:21	60m	- / -	EA1IOK	-2 / -	4	Partial capture
09-13 03:33	60m	- / -	OH3GBW	-7 / -	5	Partial capture
09-13 03:32	60m	- / -1	F5MYK	-11 / -	4	✓ Closing fragment
09-13 03:32	60m	-21 / -5	VE3FF	-16 / -	3	✓ Closing observed
09-13 03:30	60m	-18 / -6	KP2B	-15 / -7	5	✓ Full exchange observed
09-13 03:26	80m	- / -	OE6JVE	+3 / -	2	Partial capture
09-09 18:18	40m	- / -8	OH5D	+6 / -	3	✓ Closing fragment
09-09 18:17	40m	- / +3	LZ2II	+14 / -	2	✓ Closing fragment
09-07 18:11	60m	- / -5	LX1TI	0 / -	2	✓ Closing fragment
09-07 18:02	40m	- / -	UR4QWW	-4 / -	4	Partial capture
09-03 18:16	40m	-24 / -	HB9HKJ	-2 / -21	2	✓ Closing observed
08-31 17:24	20m	- / -9	BG5GEB	-9 / -	2	✓ Closing fragment
08-30 23:41	40m	-17 / -	V47JA	- / -	2	Partial capture
08-30 15:48	20m	-8 / -5	A41KB	+9 / -16	3	✓ Full exchange observed
08-28 18:37	60m	- / -16	ER1CW	-14 / -	2	✓ Closing fragment
08-28 13:59	20m	-16 / -	R4HNX/8	- / -4	3	Partial capture
08-28 13:57	20m	-16 / -	F1PSX	0 / -8	5	✓ Full exchange observed
08-28 13:55	20m	-18 / -	MM3RCR	- / -	2	Partial capture
08-26 19:01	60m	- / -6	DL1UDO	-7 / -	3	✓ Closing fragment
08-22 14:38	20m	- / 0	IU2WCY	-10 / -	2	✓ Closing fragment
08-18 22:03	60m	- / +6	DK7ZT	-12 / -	3	Partial capture
08-18 22:02	60m	- / +1	9A4ZM	-5 / -	4	✓ Closing fragment
08-18 22:02	60m	- / -	DL5DQZ	-6 / -	8	Partial capture
08-13 19:38	20m	-16 / -	JE5HTN	- / -20	2	Partial capture
08-13 19:36	20m	-15 / -	BG4UCZ	- / -	2	✓ Closing fragment
08-13 19:33	20m	-16 / -	BI6AN	- / -15	2	✓ Closing fragment
08-12 14:48	20m	- / +8	F5IXN	-12 / -	4	✓ Closing fragment
08-12 14:47	20m	- / -10	GJ0KYZ	+2 / -	2	✓ Closing fragment
08-12 14:31	20m	-14 / -	CS8ABF	- / -12	2	✓ Closing fragment
08-10 18:51	20m	-17 / -	OD5ZZ	- / -14	3	✓ Closing fragment
08-07 19:26	80m	- / -15	SV9MBH	-18 / -	3	✓ Closing fragment
08-05 19:08	40m	- / -13	YO4NF	-10 / -	2	Partial capture
08-04 13:29	20m	- / -	EA3HMM	-4 / -	3	Partial capture
08-02 18:55	20m	-16 / -	Z61DX	- / -	2	Partial capture
08-02 06:48	20m	- / -	UR4QWW	-2 / -	3	Partial capture
08-01 22:07	40m	- / -	R6FX	-20 / -	2	Partial capture
08-01 21:47	20m	-16 / -8	DS2NSC	-4 / -5	4	✓ Full exchange observed
08-01 14:44	20m	- / -15	UT7UJ	-8 / -	2	✓ Closing fragment
08-01 03:06	60m	- / -	DK5WL	-8 / -	3	Partial capture
08-01 03:06	60m	- / -	PE1NPS	+3 / -	3	Partial capture
08-01 03:06	60m	-21 / -	KA9FOX	- / -11	2	✓ Closing fragment
07-31 03:14	20m	-22 / -	XE1GLL	- / -	2	Partial capture
07-31 02:37	20m	-16 / -	HK4EIC	- / -4	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
222245  +4 1613  CT1EMI LZ2VQ KN23
222245  -2  480  CT1EMI EA1IOK IN62
222245  -5 1664  CT1EMI DL1CC JO72
222315  -3 1613  CT1EMI LZ2VQ KN23
222315  -8 1664  CT1EMI DL1CC JO72 (x4)
222515 -24 1833  CT1EMI DL1IGB JN39 (x2)
224745 -19 1494  CT1EMI EC3A +03 (x2)
224845  +3 1499  CT1EMI LZ2VQ KN23 (x3)

40m

UTC    dB Audio  Message
180245  -3 1577  CT1EMI UR4QWW KN77 (x3)
181700 +14  618  CT1EMI LZ2II +03 (x2)
181845  +4  925  CT1EMI OH5D -08 (x3)
223615 -17 1628  HZ1TT CT1EMI IM57 (x2)
223700  -4 1729  CT1EMI HZ1TT -14
223715 -16 1629  HZ1TT CT1EMI R-13
223730 -10 1729  CT1EMI HZ1TT -14
223745 -22 1628  HZ1TT CT1EMI R-11
223800 -14 1729  CT1EMI HZ1TT -14

80m

UTC    dB Audio  Message
023930 -24 1765  NP4EB CT1EMI IM57
200115 -24 1605  RO9O CT1EMI IM57
030815 -12 1569  W1CDO CT1EMI IM57
211400 -24 1445  5Z4AB CT1EMI IM57
221400 -22 1560  EA8AJ CT1EMI R-03
192630 -17 1432  CT1EMI SV9MBH KM25 (x3)
032630  +6 1671  CT1EMI OE6JVE JN76 (x2)

20m

UTC    dB Audio  Message
135615 -20 1642  MM3RCR CT1EMI IM57
135700  +4 1642  CT1EMI F1PSX JN08
135715 -14 1641  F1PSX CT1EMI -08
135730  +0 1642  CT1EMI F1PSX R+13
135745 -18 1641  F1PSX CT1EMI RR73
135800  -3 1641  CT1EMI F1PSX 73
135915 -14 1642  R4HNX/8 CT1EMI IM57 (x3)
154800  +9  633  CT1EMI A41KB -05
154815  -8 1854  A41KB CT1EMI R-16
154830  +2  632  CT1EMI RR73; I4USC <...> -22
154845  -7 1854  A41KB CT1EMI 73
172445  -7 2308  CT1EMI BG5GEB -09 (x2)

10m

UTC    dB Audio  Message
135630 -12 2482  CT1EMI CE2SV -09 (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.

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