EI4JFB — 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: Ireland Most frequent locator attributed to this token: IO63

Receiver-side FT8 activity involving EI4JFB, decoded by SO8OO in southeastern Poland. 3,472 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-27 and 2026-10-22.

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 3,472 FT8 messages attributed to EI4JFB as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 40 m (37%) and 20 m (11%). Most decodes (70%) 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 -8 dB.

Overview

3,472

Messages attributed

UTC dates decoded

389

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 19 80m · 1,793 60m · 3 40m · 1,268 20m · 389

First attributed message: 2026-06-27
Last attributed message: 2026-10-22 20:31 UTC

Observed FT8 message patterns

Attributed sample: 3,472 messages
Active dates: 34 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -16 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 384, moderate (-15 to -9 dB) 1,180, strong (≥ -8 dB) 1,908.

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 EI4JFB in decoded directed-looking exchanges:

F1IQH · France ×3 HA7TM · Hungary ×3 DO5WG · Fed. Rep. of Germany ×2 F4IFO · France ×2 SP2SGZ · Poland ×2 DD1UN · Fed. Rep. of Germany ×2 DL1UDO · Fed. Rep. of Germany ×2 IN3WZS · Italy ×2 OH3GKA · Finland ×2 YO3GNF · Romania ×2 DA6CGN · Fed. Rep. of Germany ×2 DG2EBG · Fed. Rep. of Germany ×2

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 EI4JFB

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: IO63 · 2,036 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,008 km (approx.)
Last such locator decoded: 2026-10-22 20:28 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	EI4JFB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 20:30	80m	- / -	S57MPU	+6 / -	2	Partial capture
10-22 20:28	80m	-4 / -7	IU3MAG	+2 / -8	5	✓ Full exchange observed
10-22 20:26	80m	-13 / -	DK2GB	- / -15	4	Partial capture
10-22 20:25	80m	-7 / -	RN1ON	+5 / -17	10	Partial capture
10-22 20:23	80m	-7 / -3	DO6LE	+6 / -13	4	✓ Full exchange observed
10-22 20:22	80m	-11 / -	RX3ASQ	- / -	3	Partial capture
10-22 20:20	80m	- / -11	SP1RKT	-1 / -	3	✓ Closing fragment
10-22 20:18	80m	-6 / -	RT4A	- / -16	3	✓ Closing fragment
10-22 20:15	80m	-1 / -6	HB9TOC	+17 / -8	8	✓ Full exchange observed
10-22 20:13	80m	-13 / -	S58BJ	- / -15	4	✓ Closing fragment
10-22 20:10	80m	- / -21	SP3MZ	-6 / -	3	✓ Closing fragment
10-19 20:25	160m	- / -20	OZ9GA	-16 / -	2	✓ Closing fragment
10-18 22:44	40m	- / -1	EB3SA	-12 / -	2	✓ Closing fragment
10-18 22:41	40m	-13 / -	K1XO	- / -19	3	✓ Closing fragment
10-18 22:33	40m	-14 / -16	YO3GNF	-1 / -	5	✓ Closing observed
10-18 22:31	40m	-15 / -4	RD7KW	0 / -1	6	✓ Full exchange observed
10-18 22:23	40m	-7 / -	9A5AZK	- / -11	2	✓ Closing fragment
10-18 22:21	40m	-4 / -	PD0HNH	- / -16	3	✓ Closing fragment
10-18 22:19	40m	-16 / -	S55P	- / -16	2	Partial capture
10-18 22:18	40m	-6 / -	EA5HRW	- / -13	2	✓ Closing fragment
10-18 22:07	40m	-20 / -7	EA6SA	-12 / -7	4	✓ Full exchange observed
10-18 22:04	40m	-14 / -	BG5JGG	- / -	2	Partial capture
10-18 22:02	40m	-6 / -2	EB3JT	-2 / -15	5	✓ Full exchange observed
10-18 22:01	40m	-9 / -10	PA2ES	-6 / -12	5	✓ Full exchange observed
10-18 21:59	40m	- / +4	EA4EVC	-14 / -	2	✓ Closing fragment
10-18 21:56	40m	-16 / -	IZ8EYN	- / -13	5	Partial capture
10-18 21:52	40m	-14 / -3	EA3JMB	-15 / -	3	✓ Closing observed
10-18 21:49	40m	-11 / -	RX3DSL	- / -12	4	✓ Closing fragment
10-18 21:44	40m	-8 / -	DL1ECG	-9 / -13	6	✓ Closing observed
10-18 21:42	40m	-13 / -	LZ2IP	- / -13	3	✓ Closing fragment
10-18 21:40	40m	-13 / -3	EA4IRX	-16 / -14	5	✓ Full exchange observed
10-18 21:38	40m	-7 / -	EA5FD	-6 / -11	4	✓ Closing observed
10-18 21:37	40m	-8 / -	RK3YWS/P	- / -8	2	Partial capture
10-18 21:34	40m	-18 / -	EA7KOS	- / -21	2	✓ Closing fragment
10-18 21:32	40m	-12 / -	7Z1WW	- / -	3	Partial capture
10-18 21:29	40m	-18 / -	DL5YAS	- / -6	2	Partial capture
10-18 21:28	40m	-17 / -	F5TGY	- / -15	3	✓ Closing fragment
10-18 21:25	40m	-6 / -14	TA3BJK	-10 / -13	6	✓ Full exchange observed
10-18 21:22	40m	-1 / -	CT7AQH	- / -	3	Partial capture
10-18 21:22	40m	- / -	YE4FNN	-11 / -	3	Partial capture
10-18 21:21	40m	-16 / -	LZ5UY	- / -	2	Partial capture
10-18 21:19	40m	-14 / -5	EA3DY	-8 / +1	5	✓ Full exchange observed
10-18 21:17	40m	-17 / -	F4MID	- / -	3	Partial capture
10-18 21:16	40m	-18 / -	OE1PHS	- / -12	2	✓ Closing fragment
10-18 21:13	40m	-14 / -	A61DD	- / -12	3	✓ Closing fragment
10-18 21:07	80m	- / -	F1HSY	-9 / -	2	Partial capture
10-18 18:28	80m	- / -	R2FEA	+10 / -	2	Partial capture
10-18 18:16	80m	- / -5	DO9MH	-4 / -	3	Partial capture
10-18 18:15	80m	- / -	DD8BA	+3 / -	9	Partial capture
10-18 18:12	80m	- / -	DK1HSI	-4 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
202745  +6  649  EI4JFB RN1ON LP04
202800 -10 1039  DK2GB EI4JFB R-15
202815  +2  649  EI4JFB RN1ON LP04
202830  -7  855  IU3MAG EI4JFB IO63
202845  +3  649  EI4JFB RN1ON LP04
202845  +0  856  EI4JFB IU3MAG -07
202900  -4  856  IU3MAG EI4JFB R-08
202915  +4  648  EI4JFB RN1ON LP04
202915  +4  856  EI4JFB IU3MAG RR73
202930  -2  855  IU3MAG EI4JFB 73
202945  +6  648  EI4JFB RN1ON LP04
203000  -8  855  RN1ON EI4JFB -17
203015  +4  265  EI4JFB S57MPU JN76 (x2)
203100  -6  856  RN1ON EI4JFB -17

160m

UTC    dB Audio  Message
033500 -18 1139  LY3BRA EI4JFB IO63 (x2)
033615 +16 1298  EI4JFB LY3BRA RR73
040430 -16 1139  SP3DVO EI4JFB IO63
040515  -3 1237  EI4JFB SP3DVO -12 (x3)
041000  -6  366  EI4JFB F4JUQ RR73
043630  +1 1337  EI4JFB DL4DBM -04 (x2)
043800  +3  919  EI4JFB SM5CBM JO99 (x3)
202500 -14 1200  EI4JFB OZ9GA -20 (x2)

40m

UTC    dB Audio  Message
223300 -18  809  RD7KW EI4JFB IO63
223315  -2  810  EI4JFB RD7KW -04
223330 -13  810  RD7KW EI4JFB R-01
223345  +0  524  EI4JFB YO3GNF KN34
223345  +1  810  EI4JFB RD7KW RR73
223400 -14  809  RD7KW EI4JFB 73
223415  +0  524  EI4JFB YO3GNF KN34 (x2)
223500 -14  809  YO3GNF EI4JFB RR73
223515  -3  524  EI4JFB YO3GNF 73
224115 -12  281  K1XO EI4JFB IO63 (x3)
224415 -14 1109  EI4JFB EB3SA -01 (x2)

10m

UTC    dB Audio  Message
120415 -16 1283  EI4JFB DL2UR +01 (x2)
123245 -11 1187  EI4JFB DO5WG +00 (x2)
125915 -15 1053  EI4JFB PD1HTW +10
131315  -4 1235  EI4JFB PC9F -07 (x2)
125800 -17  859  EI4JFB DN9TL -14 (x2)
141645 -10 2101  EI4JFB F5ADE +00 (x2)
134515 -20 1497  EI4JFB PP5CF RR73
103530 -21 1372  EI4JFB IT9NOV RR73
121415  -6 1167  EI4JFB CR7BUJ -19 (x2)

20m

UTC    dB Audio  Message
150715  -7 1001  M7TUC EI4JFB R-20
150915  -6 1001  OK2MKJ EI4JFB 73
151045  -8 1001  YB0KEM EI4JFB IO63 (x2)
151245  -1 1001  UA4CKN EI4JFB IO63
151330  -6  656  EI4JFB UA4CKN RR73
151445  -3 1001  UA3ZMQ EI4JFB IO63
151645  -7 1001  LA5TTA EI4JFB R-13
151830  +3  610  EI4JFB F4NKF 73
152045  +3 1001  IK2VFR/P EI4JFB IO63 (x3)
152300  +0 1001  UX7QV EI4JFB IO63 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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