RA4CEH/P — 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: European Russia Most frequent locator attributed to this token: LO21

Receiver-side FT8 activity involving RA4CEH/P, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-19 and 2026-10-13.

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 44 FT8 messages attributed to RA4CEH/P as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (91%), followed by 40 m (9%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (86%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

40m · 4 20m · 40

First attributed message: 2026-08-19
Last attributed message: 2026-10-13 17:24 UTC

Observed FT8 message patterns

Attributed sample: 44 messages
Active dates: 3 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -20 to -15 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 6, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RA4CEH/P in decoded directed-looking exchanges:

9A3K · Croatia EW4DX · Belarus EW6CB · Belarus R1BEO · European Russia R1YY · European Russia RL1B · European Russia UA1ZFL · European Russia UA7T · European Russia YT1VDA · Serbia R4UR · European Russia RA5AK · European Russia RC3D · European Russia

Most frequent locator attributed to RA4CEH/P

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: LO21 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,636 km (approx.)
Last such locator decoded: 2026-08-19 11:25 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	RA4CEH/P S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 16:24	40m	- / 0	F5PZT	0 / -	7	Partial capture
10-14 15:32	40m	- / +1	SP7SZJ	-14 / -	2	Partial capture
10-14 12:40	40m	- / -11	DL6ZOG	-10 / -	2	Partial capture
10-14 09:00	40m	- / -	SP7MTU	-22 / -	2	Partial capture
10-14 08:58	40m	- / -6	SP1TJ	-6 / -	2	Partial capture
10-14 06:52	40m	- / -11	SP7MTU	-11 / -	3	Partial capture
10-14 05:44	40m	- / -	F1IQH	-7 / -	3	Partial capture
10-14 03:49	40m	- / -9	F4FPR	-16 / -	4	Partial capture
10-14 01:56	40m	- / -	F4IFO	+6 / -	10	Partial capture
10-14 01:43	40m	- / -	UA4CPM	+1 / -	3	Partial capture
10-14 01:25	40m	- / -	F8MRQ	+8 / -	3	Partial capture
10-14 00:07	40m	- / -18	EA5FD	-16 / -	3	Partial capture
10-13 23:54	40m	- / -	EA5FD	-13 / -	4	Partial capture
10-13 22:57	40m	- / -	M7FSE	-16 / -	4	Partial capture
10-13 19:54	40m	- / -12	M6INJ	-13 / -	2	Partial capture
10-13 19:12	40m	- / -14	DK7ZT	0 / -	3	Partial capture
10-13 19:11	40m	- / -	I1RJP	+4 / -	3	Partial capture
10-13 18:27	40m	- / -3	ON3WZ	-10 / -	2	Partial capture
10-13 18:26	40m	- / -	IU1WYC	-6 / -	3	Partial capture
10-13 18:21	40m	- / -6	F4ESO	-3 / -	2	Partial capture
10-13 18:20	40m	- / -4	DK7ZT	+2 / -	3	Partial capture
10-13 18:01	40m	- / +6	DK7ZT	+5 / -	4	Partial capture
10-13 17:37	40m	- / +6	DK7ZT	0 / -	4	Partial capture
10-13 17:36	40m	- / -	DL1BJL	-4 / -	2	Partial capture
10-13 17:32	40m	- / -	DL1BJL	-1 / -	3	Partial capture
10-13 17:27	40m	- / -	F4BJN	-10 / -	2	Partial capture
10-13 17:23	40m	- / -18	RA3M	+4 / -	4	Partial capture
10-13 17:14	40m	- / -5	DK7ZT	+4 / -	3	Partial capture
10-13 17:10	40m	- / -5	DK7ZT	+4 / -	3	Partial capture
10-13 16:59	40m	- / -1	DK7ZT	+4 / -	3	Partial capture
10-13 16:57	40m	- / -	RA7Z	-16 / -	3	Partial capture
10-13 16:54	40m	- / -17	RC3D	-4 / -	3	✓ Closing fragment
10-13 16:53	40m	- / -15	RM5F	-2 / -	3	✓ Closing fragment
10-13 16:50	40m	- / -16	UA3AIF	-7 / -	5	Partial capture
10-13 16:50	40m	- / -16	R6FX	-2 / -	3	Partial capture
10-13 16:48	40m	- / -15	HA7TM	-6 / -	2	Partial capture
10-13 16:46	40m	- / -19	RU4SO	-8 / -	2	✓ Closing fragment
10-13 16:45	40m	- / -19	DK7ZT	+4 / -	3	Partial capture
10-13 16:45	40m	- / -25	RK2Z	0 / -	7	Partial capture
10-13 16:44	40m	- / -13	RC3D	+2 / -	6	Partial capture
10-13 16:43	40m	- / -	UA3AIF	-8 / -	5	Partial capture
10-13 16:42	40m	- / -17	RA5AK	-5 / -	2	✓ Closing fragment
08-20 19:01	40m	- / -21	RL3F	-8 / -	2	Partial capture
08-20 18:17	40m	- / -	DL6UM	+1 / -	2	Partial capture
08-20 18:14	40m	- / -8	RN3QTS	-2 / -	4	✓ Closing fragment
08-20 18:12	40m	- / -	DL6UM	+2 / -	2	Partial capture
08-20 18:09	40m	- / -3	RN3QTS	-4 / -	2	Partial capture
08-20 18:06	40m	- / -4	UA4PBT	-9 / -	5	Partial capture
08-20 18:05	40m	- / -	R6LFO	-4 / -	2	Partial capture
08-20 18:05	40m	- / -16	R4UR	-8 / -	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
090115 -22 1640  RA4CEH/P SP7MTU JO91
123600  -6 1835  RA4CEH/P DL6ZOG JO52 (x3)
153245 -13 1837  RA4CEH/P SP7SZJ JO91 (x2)
154915  +0  544  RA4CEH/P R3PJ R-14
160045 -14  495  RA4CEH/P IW2CAK JN45
162415  +1  490  RA4CEH/P F5PZT JN38 (x7)

20m

UTC    dB Audio  Message
111600 -18 2243  9A3K RA4CEH/P RR73
111615 +12 2678  RA4CEH/P 9A3K 73
111630 -19 2243  CQ RA4CEH/P LO21
111700 -16 2243  R1YY RA4CEH/P -09 (x2)
111830 -19 2243  CQ RA4CEH/P LO21 (x2)
112000 -17 2243  EW6CB RA4CEH/P RR73
112030 -16 2243  UA1ZFL RA4CEH/P -11 (x2)
112400 -15 2243  CQ RA4CEH/P LO21
112430 -20 2243  R1BEO RA4CEH/P +00 (x2)
112530 -16 2243  CQ RA4CEH/P LO21
112600 -18 2243  HA2EOA RA4CEH/P -19

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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