EI4KF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ireland Most frequent locator attributed to this token: IO54

Receiver-side FT8 activity involving EI4KF, decoded by SO8OO in southeastern Poland. 1,003 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-10.

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 1,003 FT8 messages attributed to EI4KF as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (44%), followed by 20 m (28%) and 40 m (21%). Most decodes (67%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +1 dB.

Overview

1,003

Messages attributed

UTC dates decoded

148

Active 15-min windows

+1 dB

Estimated median S/N

Bands

160m · 25 80m · 440 60m · 49 40m · 206 20m · 283

First attributed message: 2026-06-10
Last attributed message: 2026-09-10 05:07 UTC

Observed FT8 message patterns

Attributed sample: 1,003 messages
Active dates: 44 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -10.4 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 105, strong (≥ -8 dB) 867.

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 EI4KF in decoded directed-looking exchanges:

9J2FI · Zambia ×2 J38DX · Grenada ×2 5Z4AB · Kenya ×2 JG3WJN · Japan ×2 UN7AM · Kazakhstan ×2 LU6ABT · Argentina K5DCW · United States BH8NNU · China UK7AL · Uzbekistan W7AJE · United States 5N0YEN · Nigeria TA7MMI · Asiatic Turkey

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 EI4KF

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: IO54 · 456 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,139 km (approx.)
Last such locator decoded: 2026-09-10 05:06 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	EI4KF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 05:09	80m	- / -	SV2BRT	-19 / -	3	Partial capture
09-10 05:07	80m	- / -	EA1IOK	-22 / -	2	Partial capture
09-10 05:07	80m	- / -	DK7ZT	-3 / -	4	Partial capture
09-10 05:07	80m	- / -	SP6FME	+15 / -	3	Partial capture
09-10 05:06	80m	+6 / -	J38DX	- / -	2	✓ Closing fragment
09-09 21:01	80m	- / -	R6FX	-6 / -	2	Partial capture
09-09 21:00	80m	- / 0	YO4NF	+9 / -	2	Partial capture
09-09 20:59	80m	+7 / -13	UN7AM	-10 / -6	5	✓ Full exchange observed
09-07 20:20	80m	- / -	SP9SOS	-3 / -	2	Partial capture
09-07 20:16	80m	- / -	DL3MIB	+9 / -	7	Partial capture
09-07 20:15	80m	- / -	DO1FED	-14 / -	2	Partial capture
09-07 20:04	80m	- / -	DL7HS	-6 / -	5	Partial capture
09-07 20:04	80m	- / -	IK0XFD	+6 / -	2	Partial capture
09-07 20:03	80m	- / -2	DK7ZT	+12 / -	5	Partial capture
09-07 20:03	80m	- / -7	R1QBQ	+4 / -	2	Partial capture
09-07 20:02	80m	+4 / -	5Z4VJ	- / -14	2	✓ Closing fragment
09-07 20:02	80m	- / -	DL3MIB	+16 / -	2	Partial capture
09-07 20:02	80m	- / -	DO9BAU	+12 / -	24	Partial capture
09-07 05:57	40m	- / -	DK7ZT	-3 / -	3	Partial capture
09-07 05:57	40m	- / -	DL6LG	-8 / -	2	Partial capture
09-07 05:57	40m	+8 / -	KC4WQ	- / -10	2	✓ Closing fragment
09-07 05:56	40m	- / -	RA6OY	+2 / -	5	Partial capture
09-07 05:56	40m	- / -	SP5EXA	-3 / -	5	Partial capture
09-07 05:56	40m	- / -4	OH3OJ	-11 / -	2	Partial capture
09-07 05:55	40m	+9 / -	KA2EEU	- / -17	2	✓ Closing fragment
09-07 05:54	40m	- / -	F5PBG	+1 / -	3	Partial capture
09-07 05:51	40m	+7 / -	J38DX	- / -7	5	✓ Closing fragment
09-07 05:49	40m	- / -	EB3JT	-14 / -	5	Partial capture
09-07 05:47	40m	- / -	PD1AC	-7 / -	8	Partial capture
09-07 05:46	40m	-3 / -	HR1JB	- / -10	3	✓ Closing fragment
09-07 05:42	40m	+6 / -	HR1JB	- / -14	3	Partial capture
09-07 05:40	40m	- / -	DK7ZT	-3 / -	3	Partial capture
09-07 05:39	40m	+9 / -	W7ZR	- / -14	4	Partial capture
09-07 05:37	40m	+9 / -	HK5JHY	- / -12	3	✓ Closing fragment
09-07 05:35	40m	-6 / -	AA7K	- / -18	2	Partial capture
09-07 05:34	40m	- / -	DK7ZT	-12 / -	2	Partial capture
09-07 05:34	40m	-2 / -	PY5NBX	- / -14	2	✓ Closing fragment
09-07 05:30	80m	-11 / -	AJ4F	- / -15	2	✓ Closing fragment
09-07 05:27	80m	- / -	DO1FZL	-4 / -	3	Partial capture
09-07 05:27	80m	-6 / -	N2FSM	- / -18	3	Partial capture
09-07 05:26	80m	- / -4	DK7ZT	+4 / -	5	Partial capture
09-07 05:25	80m	-9 / -	K8OOK	- / -20	3	✓ Closing fragment
09-07 05:24	80m	-4 / -	CE2SV	- / -18	2	✓ Closing fragment
09-07 05:23	80m	-8 / -	W5MMW	- / -17	2	✓ Closing fragment
09-07 05:20	80m	- / -	DL3MIB	-6 / -	6	Partial capture
09-07 05:20	80m	- / -	DO1FZL	-7 / -	5	Partial capture
09-07 05:11	60m	-8 / -	IK3/UY7LA	- / -13	2	Partial capture
09-07 05:07	80m	- / -	DO5PY	-10 / -	2	Partial capture
09-07 05:06	80m	0 / -	XE2KK	- / -15	2	✓ Closing fragment
09-07 05:05	80m	- / -	DO3JP	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210145  -5  584  EI4KF R6FX LN14
050600  +6 2358  J38DX EI4KF IO54 (x2)
050715  -4 1111  EI4KF DK7ZT +14
050715 +10 2358  EI4KF SP6FME JO90
050745 -21  608  EI4KF EA1IOK IN62
050745 +14 2357  EI4KF SP6FME JO90
050745  -5 1110  EI4KF DK7ZT +14
050815 -24  608  EI4KF EA1IOK IN62
050815 +20 2358  EI4KF SP6FME JO90
050815  -4 1110  EI4KF DK7ZT +14 (x2)
050945 -17 1463  EI4KF SV2BRT KN10 (x3)

60m

UTC    dB Audio  Message
184000  -5  908  D2ACE EI4KF IO54 (x8)
194800  -3 1138  BH8ESR EI4KF -10 (x4)
051145  -8 1129  IK3/UY7LA EI4KF -13 (x2)
065445 -15  926  VE3EY EI4KF IO54

40m

UTC    dB Audio  Message
055700  +7 2718  KC4WQ EI4KF -10
055715  -4 2636  EI4KF SP5EXA KO02
055715  +2  244  EI4KF RA6OY KN88
055730  +9 2718  KC4WQ EI4KF RR73
055745 -10 2832  EI4KF DL6LG JO60
055745  -4 2635  EI4KF SP5EXA KO02
055745  -5 1907  EI4KF DK7ZT +16
055745  +3  244  EI4KF RA6OY KN88
055815  -5 2831  EI4KF DL6LG JO60
055815  -2 2636  EI4KF SP5EXA KO02
055815  +4  244  EI4KF RA6OY KN88
055815  -1 1907  EI4KF DK7ZT +16
055845  -3 2636  EI4KF SP5EXA KO02
055845  -4 1907  EI4KF DK7ZT +16
055845  +1  244  EI4KF RA6OY KN88

160m

UTC    dB Audio  Message
200000 -10 1195  EI4KF OK1DXR JO60 (x2)
200230  +3  561  OD5TX EI4KF IO54
200245 -18 2045  EI4KF RD7O KN98 (x4)
200630  -2  561  EI4KF UA4FKT LO23
205800  +0  494  HS0ZNR EI4KF -20 (x3)
205945  -5  494  EI4KF R2SN -14
205945  -9 1131  EI4KF RZ3DJ KO85
210015  -8  494  EI4KF R2SN -14 (x2)

20m

UTC    dB Audio  Message
064630  -1 1804  EI4KF F5RRS JN36
064645  -7  994  XQ1KK EI4KF RR73
064700  -1  636  EI4KF DK7ZT +07
064700  +5 1804  EI4KF F5RRS JN36
064730  -4  637  EI4KF DK7ZT +07
064730  -3 1804  EI4KF F5RRS JN36 (x2)
064800  +1  637  EI4KF DK7ZT +07
064845  -8 1929  VK4XK EI4KF -15
064900  +0 1804  EI4KF F5RRS JN36 (x2)
065015  -3 1928  VK4XK EI4KF -14
070500  +4  896  KH6HAM EI4KF -14 (x2)
070545 -16 2502  EI4KF RD1A -14

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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