RA4ABM — 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

Receiver-side FT8 activity involving RA4ABM, decoded by SO8OO in southeastern Poland. 82 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 82 FT8 messages attributed to RA4ABM as the transmitting token by decoded message structure across 13 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 (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

40m · 7 20m · 75

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 16:58 UTC

Observed FT8 message patterns

Attributed sample: 82 messages
Active dates: 13 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -10 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 72.

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 RA4ABM in decoded directed-looking exchanges:

EA5JLN · Spain M0ABG · England 9A7BB · Croatia EU2ABM · Belarus M1DBW · England R6FX · European Russia

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.

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	RA4ABM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 16:57	40m	-12 / -4	M1DBW	+2 / -9	4	✓ Full exchange observed
10-22 16:45	40m	- / -6	9A7BB	-8 / -	2	✓ Closing fragment
10-20 16:13	40m	-8 / -3	UA6HGM	0 / -8	5	Partial capture
10-20 16:10	40m	-9 / -16	R6FX	-2 / -	6	✓ Closing observed
08-30 15:57	20m	+8 / -5	EA5JLN	+7 / -15	5	✓ Full exchange observed
08-09 07:08	20m	- / -	R6DZR	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
161215  -9  751  R6FX RA4ABM RR73
161230  -3  751  RA4ABM R6FX 73
161300  +1  751  RA4ABM UA6HGM LN14 (x2)
161345  -8  750  UA6HGM RA4ABM -08
161400  +1  751  RA4ABM UA6HGM R-03 (x2)
164545 -11 2180  RA4ABM 9A7BB R-06 (x2)
164745 -15 2443  EU2ABM RA4ABM RR73
165000 -18 1229  RA9SOZ RA4ABM +00
165730 -10 2779  M1DBW RA4ABM -09
165745  +1 2780  RA4ABM M1DBW R-04
165800 -14 2780  M1DBW RA4ABM RR73
165815  +2 2780  RA4ABM M1DBW 73

20m

UTC    dB Audio  Message
105230 -14 1787  <...> RA4ABM -18
111530 -10 1980  RA4ABM M0ABG RR73
165130  -4 2744  BV2NF RA4ABM -07
070815 -14 1017  RA4ABM R6DZR KN84 (x2)
155715  +9 2655  RA4ABM EA5JLN R-05
155730 +11 2654  EA5JLN RA4ABM -15
155745  +8 2655  RA4ABM EA5JLN R-06
155800  +5 2654  EA5JLN RA4ABM RR73
155815  +3 2655  RA4ABM EA5JLN 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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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