EW7DDR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belarus Most frequent locator attributed to this token: KO43

Receiver-side FT8 activity involving EW7DDR, decoded by SO8OO in southeastern Poland. 917 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-07-15.

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 917 FT8 messages attributed to EW7DDR as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 10 m (38%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -5.3 dB.

Overview

917

Messages attributed

UTC dates decoded

119

Active 15-min windows

-5.3 dB

Estimated median S/N

Bands

20m · 573 10m · 344

First attributed message: 2026-06-06
Last attributed message: 2026-07-15 18:54 UTC

Observed FT8 message patterns

Attributed sample: 917 messages
Active dates: 22 UTC dates
Estimated median S/N: -5.3 dB
Estimated 10th-90th percentile: -14 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 65, moderate (-15 to -9 dB) 256, strong (≥ -8 dB) 596.

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 EW7DDR in decoded directed-looking exchanges:

IK4LZH · Italy ×2 CT7AUT · Portugal IZ8NVV · Italy RK6OQ · European Russia SV4OZF · Greece 7K1CPT · Japan DK3MJ/P · Fed. Rep. of Germany DL2ZM · Fed. Rep. of Germany EA1DR · Spain EA3FZN · Spain EA5W · Spain F5LOW · 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 EW7DDR

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: KO43 · 546 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 635 km (approx.)
Last such locator decoded: 2026-07-15 18:54 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	EW7DDR S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-17 15:20	20m	- / -	PA8S	-12 / -	2	✓ Closing fragment
07-15 18:54	20m	-4 / -	TA8AIR	- / -	2	Partial capture
07-15 18:51	20m	-4 / -	YO9BNP	- / -	5	Partial capture
07-15 18:42	20m	-8 / -	SQ2HEB	- / -	4	Partial capture
07-15 18:31	20m	-6 / -18	R5DT	-13 / -11	12	Partial capture
07-15 18:26	20m	+4 / -	VE2OPR	- / -	2	Partial capture
07-15 18:21	20m	-9 / -	YO4DWD	- / -	3	Partial capture
07-14 18:58	20m	- / -9	G3BAM	-1 / -	3	✓ Closing fragment
07-14 18:24	20m	- / -13	EA1DR	-3 / -	3	✓ Closing fragment
07-13 17:11	20m	- / -11	TA4WH	-21 / -	2	Partial capture
07-12 16:17	20m	-4 / -	R2AL	- / -	4	Partial capture
07-12 16:05	20m	-8 / -13	G5MUT	-19 / -19	6	✓ Full exchange observed
07-12 16:02	20m	-13 / -14	YH5NA	-11 / -	2	Partial capture
07-12 15:50	20m	- / -10	7K1CPT	-6 / -	3	✓ Closing fragment
07-12 15:48	20m	- / -8	F5NBQ	+6 / -	2	✓ Closing fragment
07-12 13:13	20m	- / -9	LB2YJ	-15 / -	2	✓ Closing fragment
07-12 10:44	20m	-13 / -	F1AFW	- / -3	3	Partial capture
07-12 10:31	10m	- / -19	R6DVV	-24 / -	2	Partial capture
07-11 13:21	20m	- / -4	PD1ACS	-6 / -	2	Partial capture
07-11 11:56	20m	- / -4	IK4LZH	+5 / -	3	✓ Closing fragment
07-11 11:42	20m	-9 / -10	ON7KEC	-20 / -7	3	✓ Full exchange observed
07-11 11:37	20m	-12 / -	RW6HPI	- / -8	2	✓ Closing fragment
07-11 11:32	20m	-13 / -	SQ8BWA	- / -2	3	✓ Closing fragment
07-11 11:31	20m	- / -13	IW4DNI	-4 / -	2	✓ Closing fragment
07-11 08:07	10m	- / -13	IZ8NVV	-8 / -	2	✓ Closing fragment
07-10 17:58	20m	-7 / -	W4PSK	- / -	3	Partial capture
07-10 17:55	20m	-4 / -	HA5KN	- / -	4	Partial capture
07-10 17:48	20m	-2 / -	DL2ZM	- / 0	3	✓ Closing fragment
07-10 17:45	20m	-1 / -	EI2IXB	- / -	5	Partial capture
07-10 17:42	20m	-2 / -	ZR6PE	- / -	5	Partial capture
07-10 17:39	20m	0 / -	EA7LEE	- / -	4	Partial capture
07-10 17:37	20m	-12 / -	DK3MJ/P	- / -3	2	✓ Closing fragment
07-10 16:52	20m	- / -	EA5LD	-15 / -	2	Partial capture
07-10 16:20	20m	- / -	EA2ESU	-7 / -	2	Partial capture
07-09 18:50	20m	- / -	IK4LZH	-12 / -	3	Partial capture
07-09 18:37	20m	-2 / +2	IU4DTV	-12 / -8	4	✓ Full exchange observed
07-09 18:31	20m	-16 / -	G0KEE	-12 / -12	6	Partial capture
07-09 18:27	20m	-7 / -	G8KVM	-6 / -	2	✓ Closing observed
07-09 17:13	20m	- / -15	F5LOW	+2 / -	2	✓ Closing fragment
07-09 12:55	10m	- / -18	CT7AUT	-8 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
184300  -9  496  SQ2HEB EW7DDR KO43 (x3)
184745  -9  495  7X3WPL EW7DDR KO43
184945  +2  496  CQ EW7DDR KO43 (x2)
185115  -9  496  YO9BNP EW7DDR KO43 (x5)
185415  -1  495  TA8AIR EW7DDR KO43 (x2)
152045 -13  669  EW7DDR PA8S JO32 (x2)

10m

UTC    dB Audio  Message
113630 -21 1210  CQ EW7DDR KO43
125545  -7 1539  EW7DDR CT7AUT -18 (x3)
080730  -9 1435  EW7DDR IZ8NVV -13 (x2)
083445  -1 2201  EW7DDR OZ5NJ +07
075845 -19 1612  EW7DDR SV4OZF RR73
103130 -24 1604  EW7DDR R6DVV -19 (x2)
145345 -18 1163  EW7DDR RK6OQ 73

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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