EH5CMP — 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: Spain Most frequent locator attributed to this token: IM99

Receiver-side FT8 activity involving EH5CMP, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-17 and 2026-10-18.

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 94 FT8 messages attributed to EH5CMP as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 94

First attributed message: 2026-10-17
Last attributed message: 2026-10-18 22:41 UTC

Observed FT8 message patterns

Attributed sample: 94 messages
Active dates: 2 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -20 to -12 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 59, moderate (-15 to -9 dB) 35, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with EH5CMP in decoded directed-looking exchanges:

9A4ZM · Croatia CT7AXN · Portugal DK7ZT · Fed. Rep. of Germany DL3TA · Fed. Rep. of Germany DL7ACA · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany F1BOW · France F1DSZ · France G0OYR · England IQ4JO · Italy JA4FSH · Japan M9IOU · England

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 EH5CMP

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: IM99 · 55 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,129 km (approx.)
Last such locator decoded: 2026-10-18 22:32 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	EH5CMP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 22:08	40m	-20 / -10	YO3GNF	0 / -6	6	✓ Full exchange observed
10-18 22:05	40m	- / -	M0PFX	-3 / -	5	Partial capture
10-18 21:58	40m	-17 / -	WB3FBR	- / -10	2	✓ Closing fragment
10-18 21:55	40m	-18 / -7	G0OYR	-9 / -5	4	✓ Full exchange observed
10-18 21:52	40m	-18 / -	WA4UVH	- / -11	4	✓ Closing fragment
10-18 21:42	40m	- / -19	JA4FSH	-2 / -	2	✓ Closing fragment
10-18 21:38	40m	-17 / -	M9IOU	-16 / +2	3	✓ Closing observed
10-18 20:49	40m	-23 / -	CT7AXN	-8 / -	3	✓ Closing observed
10-18 20:46	40m	-24 / -	G8IXM	-14 / -15	3	Partial capture
10-18 20:43	40m	-22 / -15	SV1EKI	-7 / -	7	✓ Closing observed
10-18 20:43	40m	- / -13	UA4FKT	+7 / -	3	✓ Closing fragment
10-18 20:41	40m	-20 / -	DK7ZT	- / 0	2	✓ Closing fragment
10-17 18:34	60m	- / -	F1IQH	-9 / -	3	Partial capture
10-17 16:13	40m	-14 / -	F1DSZ	- / -2	2	✓ Closing fragment
10-17 16:07	40m	-12 / -13	F1BOW	-4 / -11	5	✓ Full exchange observed
10-17 16:07	40m	-16 / -13	RW6ATD	-7 / -10	7	✓ Full exchange observed
10-17 16:00	40m	- / -	HB9ZHK	-19 / -	2	Partial capture
10-17 15:54	40m	-11 / -4	DL3TA	-9 / -	7	✓ Closing observed
10-17 15:49	40m	- / -8	OE5PEN	-6 / -	4	✓ Closing fragment
10-17 15:36	40m	-16 / -	DJ0MAB	-12 / -12	4	Partial capture
10-17 15:33	40m	-19 / -8	DL7ACA	-8 / -	4	✓ Closing observed
10-17 15:28	40m	-18 / -6	OE6TNO	-6 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
221330 -15 2010  CQ EH5CMP IM99 (x4)
221630 -19 2010  SP9DPI EH5CMP -07
221830 -17 2010  CQ EH5CMP IM99
221930 -13 2010  SP9DPI EH5CMP RR73
222000 -11 2010  CQ EH5CMP IM99 (x7)
224100 -18 2010  UX7UU EH5CMP -05

60m

UTC    dB Audio  Message
183445 -12 2003  EH5CMP F1IQH JN27 (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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