K4CME — 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: United States Most frequent locator attributed to this token: EL88

Receiver-side FT8 activity involving K4CME, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-05.

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 19 FT8 messages attributed to K4CME as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 20 m (11%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

40m · 17 20m · 2

First attributed message: 2026-06-08
Last attributed message: 2026-10-05 02:08 UTC

Observed FT8 message patterns

Attributed sample: 19 messages
Active dates: 3 UTC dates
Estimated median S/N: -19 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 2, 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 K4CME in decoded directed-looking exchanges:

DL3OCF · Fed. Rep. of Germany DL8TV · Fed. Rep. of Germany KF9UG · United States PI4DX · Netherlands R2EC · European Russia RA2FCF · Kaliningrad RA6FCU · European Russia TA2FE · Asiatic Turkey TI5RR · Costa Rica WA2HIP · United States SM5DIC · Sweden

Most frequent locator attributed to K4CME

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: EL88 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,589 km (approx.)
Last such locator decoded: 2026-10-05 02:08 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	K4CME S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 02:15	40m	- / -	OK1DXR	+2 / -	2	Partial capture
10-05 02:09	40m	- / -	PI4DX	-8 / -	2	✓ Closing fragment
10-05 02:07	40m	- / -10	R6AR	-1 / -	3	Partial capture
08-24 03:44	40m	-20 / -13	TA2FE	+2 / -	3	✓ Closing observed
08-24 03:41	40m	-20 / -11	R2EC	+5 / -11	4	✓ Full exchange observed
08-24 03:40	40m	-19 / -7	DL3OCF	-8 / -8	4	✓ Full exchange observed
08-24 03:39	40m	-20 / -	TI5RR	- / +1	2	✓ Closing fragment
08-24 03:37	40m	-19 / -8	WA2HIP	-15 / +3	5	✓ Full exchange observed
08-24 03:23	80m	- / -18	SM5DIC	-5 / -	5	✓ Closing fragment
08-24 03:15	40m	-16 / -	F8BJK/P	- / -16	2	Partial capture
08-24 03:15	40m	- / -	IZ7NLJ	+5 / -	3	Partial capture
08-24 03:11	40m	- / -15	KF9UG	-14 / -	2	✓ Closing fragment
08-24 03:04	40m	- / -8	DL8TV	-9 / -	3	✓ Closing fragment
08-24 03:00	40m	-18 / -3	CT7AUT	-9 / -	4	Partial capture
08-24 02:59	40m	-20 / -	RA2FCF	- / -4	2	✓ Closing fragment
08-23 02:27	40m	- / -16	RA6FCU	-1 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
034200  +6 2522  K4CME R2EC RR73
034415 -20 1980  TA2FE K4CME EL88
034500  +1 1433  K4CME TA2FE -13 (x2)
034830 -19 1947  K4CME YO4GIY -15
020700  +4 1417  K4CME R6AR -10
020745 -21 1976  HA1BF K4CME EL88
020800  -6 1417  K4CME R6AR -25
020815 -19 1977  SV4LGX K4CME EL88
020830  +0 1417  K4CME R6AR -25
020930  -7 1840  K4CME PI4DX JO21 (x2)
021200  +8 1978  K4CME DL1USB JO60
021500  +1 1335  K4CME OK1DXR JO60 (x2)

80m

UTC    dB Audio  Message
032300 -10 1130  K4CME SM5DIC JO89 (x5)

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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