E75W — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Bosnia-Herzegovina Most frequent locator attributed to this token: JN93

Receiver-side FT8 activity involving E75W, decoded by SO8OO in southeastern Poland. 3,224 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-16.

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 3,224 FT8 messages attributed to E75W as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (49%), followed by 10 m (43%) and 60 m (8%). Most decodes (76%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

3,224

Messages attributed

UTC dates decoded

350

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 10 60m · 251 40m · 7 20m · 1,576 10m · 1,380

First attributed message: 2026-06-07
Last attributed message: 2026-09-16 04:48 UTC

Observed FT8 message patterns

Attributed sample: 3,224 messages
Active dates: 56 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 864, moderate (-15 to -9 dB) 1,275, strong (≥ -8 dB) 1,085.

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 E75W in decoded directed-looking exchanges:

F4HSB · France ×3 DF6QN · Fed. Rep. of Germany ×2 DK5CW · Fed. Rep. of Germany ×2 DL7CK · Fed. Rep. of Germany ×2 DL8NW · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 DN9DZ · Fed. Rep. of Germany ×2 DN9RL · Fed. Rep. of Germany ×2 EA3AYQ · Spain ×2 F1PBZ · France ×2 F6DYA · France ×2 F6IQA · France ×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 E75W

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: JN93 · 2,157 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 747 km (approx.)
Last such locator decoded: 2026-09-16 04:48 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	E75W S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 04:46	60m	-9 / -	W3FAY	- / -19	2	✓ Closing fragment
09-16 04:44	60m	-12 / -	KR4JUK	- / -20	2	Partial capture
09-16 04:38	60m	-12 / -	W9AV	- / -17	2	Partial capture
09-16 04:34	60m	-10 / +4	DL5MG	-8 / -8	5	✓ Full exchange observed
09-16 04:30	60m	-7 / -	SQ8AA	- / -16	2	✓ Closing fragment
09-16 04:22	60m	-10 / -	F5OZC	- / -13	2	✓ Closing fragment
09-16 04:16	60m	-10 / -4	ON4BHQ	-11 / -18	5	✓ Full exchange observed
09-16 04:06	60m	- / -7	K1QD	-16 / -	2	Partial capture
09-16 04:03	60m	- / -17	DF0AWG	+5 / -	5	Partial capture
09-16 03:57	60m	-16 / -7	F6ICX	+1 / -8	4	✓ Full exchange observed
09-16 03:43	60m	-12 / -1	KC4QX	-17 / -12	5	✓ Full exchange observed
09-10 04:26	60m	-8 / -	KE9I	- / -16	2	Partial capture
09-10 04:18	60m	-20 / -16	VE3EY	-8 / -	3	✓ Closing observed
09-10 04:15	60m	-18 / -	DL4YDR	-11 / -11	2	✓ Closing observed
09-10 04:11	60m	-16 / -	VE3EY	- / -8	3	Partial capture
09-10 04:04	60m	-16 / -	VE3ARF	- / -12	3	Partial capture
09-10 03:58	60m	-16 / +2	OR0A	-11 / -10	5	✓ Full exchange observed
09-10 03:42	60m	- / -14	M0LOW	-6 / -	2	✓ Closing fragment
09-08 04:32	40m	-18 / -16	EH3PDA	-16 / -	3	✓ Closing observed
09-08 03:38	60m	-12 / -	WA0YPC	- / -10	4	✓ Closing fragment
09-02 10:19	10m	-8 / +9	I2FAK	-19 / -4	3	✓ Full exchange observed
09-02 10:16	10m	- / -	I2FAK	-20 / -	2	Partial capture
09-02 10:16	10m	-6 / -	GE0CHE	- / -13	2	✓ Closing fragment
09-02 10:11	10m	-2 / -	OE3BHM	- / -18	9	Partial capture
09-01 04:49	40m	- / -	DL4DP	-20 / -	2	Partial capture
09-01 04:46	40m	- / -18	DL3HN	-14 / -	2	✓ Closing fragment
09-01 04:37	80m	- / -18	SP5FWT	+2 / -	4	Partial capture
09-01 04:36	80m	-16 / -3	IQ4JO	-8 / -24	5	✓ Full exchange observed
09-01 04:24	60m	-14 / -	KG5UWB	- / -21	2	Partial capture
09-01 04:16	60m	-7 / -	VE3FF	- / -8	2	Partial capture
09-01 04:13	60m	-13 / -	D44TWO	- / -17	3	Partial capture
09-01 04:10	60m	-20 / +2	YO2CR	0 / +3	5	✓ Full exchange observed
09-01 04:08	60m	-14 / -3	EC1A	0 / -5	5	✓ Full exchange observed
09-01 04:06	60m	-8 / -	D44TWO	- / -15	3	Partial capture
09-01 04:03	60m	-10 / -	CT2GQA	- / -10	4	✓ Closing fragment
09-01 03:58	60m	-14 / -20	DL3FBI	-18 / -19	3	✓ Full exchange observed
09-01 03:54	60m	- / -6	ER3UA	+1 / -	3	✓ Closing fragment
09-01 03:54	60m	-13 / +3	IK2VFR/P	-4 / +1	6	✓ Full exchange observed
09-01 03:40	60m	-14 / -18	IV3DSG	-6 / -18	5	✓ Full exchange observed
09-01 03:37	60m	-15 / -11	F4FPR	-18 / -18	5	✓ Full exchange observed
08-31 04:41	40m	-24 / -	DH8KAM	- / 0	2	Partial capture
08-31 04:27	40m	- / -20	F4JZW	+2 / -	4	✓ Closing fragment
08-31 04:25	40m	- / -14	PE1BSF	-16 / -	2	✓ Closing fragment
08-30 17:35	20m	- / -12	DH1KU	-3 / -	3	✓ Closing fragment
08-30 17:19	20m	- / -13	TA7ARH	0 / -	6	✓ Closing fragment
08-30 16:53	20m	- / -3	G0VJG	+5 / -	3	✓ Closing fragment
08-30 16:19	20m	- / -	M9LCB	-6 / -	2	Partial capture
08-30 16:05	20m	- / -8	EA5JLN	0 / -	2	✓ Closing fragment
08-30 15:48	20m	- / -1	M7XNT	-4 / -	2	Partial capture
08-30 11:11	20m	- / -10	DL5BAE	-4 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
043715 -10 2258  CQ E75W JN93 (x3)
043845 -10 2258  W9AV E75W -17 (x2)
044215 -15 2258  CQ E75W JN93 (x5)
044445 -13 2258  KR4JUK E75W -20 (x2)
044645 -12 2258  W3FAY E75W -19 (x2)
044845 -10 2258  CQ E75W JN93

40m

UTC    dB Audio  Message
042730  +1 1534  E75W F4JZW JN08 (x4)
043715 -24 1362  CQ E75W JN93                          a1 (x2)
044145 -23 1362  DH8KAM E75W +00 (x2)
044615 -24  740  E75W DL3HN R-18 (x2)
044915 -20 1889  E75W DL4DP JO31 (x2)
043200 -16  943  E75W EH3PDA R-16
043245 -18 2430  EH3PDA E75W RR73 (x2)

80m

UTC    dB Audio  Message
043715  -6 2188  E75W IQ4JO R-03
043730 -15 1833  IQ4JO E75W RR73
043745  +3 1844  E75W SP5FWT -18
043745 -11 2187  E75W IQ4JO 73
043815  +5 1844  E75W SP5FWT -18 (x3)
042015 -19 1922  CQ E75W JN93 (x4)
042215  -6 1872  DG5PW E75W -23
042245 -13 1872  CQ E75W JN93
042415 -16 1922  SO100PKP E75W -14
042530  +4 2320  E75W LY90KRS R-06

10m

UTC    dB Audio  Message
101230  -1 2495  OE3BHM E75W -18 (x6)
101530  +3 2494  CQ E75W JN93 (x2)
101630  -4 2493  GE0CHE E75W -13
101645 -19 1922  E75W I2FAK JN45
101700  -8 2493  GE0CHE E75W RR73
101715 -20 1921  E75W I2FAK JN45
101930  -8 2495  I2FAK E75W -04
102015 -18 1921  E75W I2FAK R+09 (x2)

20m

UTC    dB Audio  Message
161945  -8 2458  E75W M9LCB IO93
163515  -8 2062  E75W RA3GLP -15
165315  +4 2513  E75W G0VJG JO01 (x3)
171945  +7 2244  E75W TA7ARH KN91 (x6)
172545  -3 2313  E75W IK1EVX 73
173515  -3 1855  E75W DH1KU JO30 (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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