EA1CMS — 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: IN70

Receiver-side FT8 activity involving EA1CMS, decoded by SO8OO in southeastern Poland. 119 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-17.

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 119 FT8 messages attributed to EA1CMS as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (66%), followed by 10 m (29%) and 40 m (6%). Most decodes (58%) 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 (63%); the estimated median was -6 dB.

Overview

119

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

40m · 7 20m · 78 10m · 34

First attributed message: 2026-06-07
Last attributed message: 2026-10-17 12:52 UTC

Observed FT8 message patterns

Attributed sample: 119 messages
Active dates: 14 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 75.

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 EA1CMS in decoded directed-looking exchanges:

N3FMC · United States PT7ST · Brazil TG9ADQ · Guatemala YO6LM · Romania C91RU · Mozambique S55A · Slovenia OE3IPU · Austria Z62NS · Republic of Kosovo

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 EA1CMS

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: IN70 · 80 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,329 km (approx.)
Last such locator decoded: 2026-10-17 12:52 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	EA1CMS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 12:52	10m	-10 / -	T77BL	- / -	2	Partial capture
10-17 12:37	10m	-14 / -	<...>	- / -	6	Partial capture
10-17 12:35	10m	-4 / -	ZS6MGM	- / -	4	Partial capture
10-17 12:31	10m	-8 / -	N3FMC	- / -16	2	✓ Closing fragment
10-17 12:28	10m	-10 / -	PT7ST	- / -17	4	✓ Closing fragment
10-17 12:26	10m	-9 / -	S79VU	- / -	5	Partial capture
10-10 19:45	40m	-2 / -	OE3IPU	- / -15	2	✓ Closing fragment
10-10 19:43	40m	-4 / -	Z62NS	- / -11	3	✓ Closing fragment
10-03 17:04	10m	-12 / -	PS7RW	- / -	4	Partial capture
10-03 16:32	10m	-12 / -	TG9ADQ	- / -10	4	✓ Closing fragment
08-02 19:01	20m	+7 / -	BG7WJH	- / -	6	Partial capture
08-02 18:54	20m	-3 / -	9J2FI	- / -	10	Partial capture
08-02 18:52	20m	-18 / -	S55A	- / 0	2	✓ Closing fragment
08-02 18:50	20m	-17 / -	C91RU	- / -5	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
123345  -7 2052  YO6LM EA1CMS RR73
123430  -8 2050  S79VU EA1CMS IN70
123530  -7 2050  ZS6MGM EA1CMS IN70 (x4)
123730  -4 2049  <...> EA1CMS IN70 (x6)
124945  -5 2045  T77BL EA1CMS IN70 (x3)

40m

UTC    dB Audio  Message
214715 -13 2254  CQ DX EA1CMS IN70 (x2)
194300  -8 1163  Z62NS EA1CMS IN70 (x3)
194500  -1 1162  OE3IPU EA1CMS -15 (x2)

20m

UTC    dB Audio  Message
185500  +0 2838  9J2FI EA1CMS IN70 (x8)
190145 +12 2839  BG7WJH EA1CMS IN70 (x6)
205145  -5 2495  TJ1GD EA1CMS IN70

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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