R4FAH — 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: LO33

Receiver-side FT8 activity involving R4FAH, decoded by SO8OO in southeastern Poland. 699 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-21.

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 699 FT8 messages attributed to R4FAH as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 80 m (25%) and 20 m (15%). Most decodes (88%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

699

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 172 40m · 425 20m · 102

First attributed message: 2026-06-09
Last attributed message: 2026-10-21 19:03 UTC

Observed FT8 message patterns

Attributed sample: 699 messages
Active dates: 34 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 180, moderate (-15 to -9 dB) 219, strong (≥ -8 dB) 300.

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 R4FAH in decoded directed-looking exchanges:

RQ3D · European Russia ×2 RY3F · European Russia ×2 EB3JT · Spain R7KM · European Russia RU4B · European Russia RX7O · European Russia SV2AOB · Greece SV9MBH · Crete BD4VOJ · China BG0FQU · China BG8HNC · China DD1OO · Fed. Rep. of Germany

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 R4FAH

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: LO33 · 293 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,771 km (approx.)
Last such locator decoded: 2026-10-21 19:03 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	R4FAH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 19:02	40m	- / -	IU8RFW	-1 / -	5	Partial capture
10-21 19:02	40m	- / -14	TA2ED	-17 / -	3	Partial capture
10-21 16:55	40m	-22 / -13	RD7KW	-2 / -	4	✓ Closing observed
10-21 16:54	40m	-17 / -4	DL1DEU	-6 / -13	4	✓ Full exchange observed
10-21 16:52	40m	-14 / -	SQ3PMX	- / -9	2	✓ Closing fragment
10-20 07:22	40m	- / -	RX3ASQ	-20 / -	2	Partial capture
10-08 15:53	40m	-6 / -	JA5NSR	- / -22	4	✓ Closing fragment
10-08 15:50	40m	-8 / -	RZ0SW	- / -8	2	✓ Closing fragment
10-08 15:42	40m	-13 / +2	UD7G	0 / -3	5	✓ Full exchange observed
10-08 15:39	40m	-11 / -	UA9LKL	- / -11	3	✓ Closing fragment
10-07 16:09	40m	- / -24	HB9MOW	0 / -	3	✓ Closing fragment
10-06 14:56	40m	-18 / 0	RA6FSV	-19 / -	2	Partial capture
10-04 17:47	40m	-17 / -4	ES6DO	-8 / -	3	✓ Closing observed
10-04 17:34	40m	-13 / -	R2DDA	- / -	3	Partial capture
10-04 17:30	40m	-10 / -	OZ5AGJ	-15 / -12	2	✓ Closing observed
10-04 17:24	40m	-14 / -	BA8BLJ	- / -14	4	Partial capture
10-04 17:22	40m	- / -	HA7TM	+10 / -	3	Partial capture
10-04 17:18	40m	-12 / -6	HA7UL	-9 / -4	5	✓ Full exchange observed
10-04 17:13	40m	-12 / +8	RA4ADF	-16 / +3	4	✓ Full exchange observed
10-04 17:10	40m	-9 / -7	R1WCK	-6 / -19	3	✓ Full exchange observed
10-04 17:08	40m	-12 / -	UC6W	- / -9	3	✓ Closing fragment
10-04 17:08	40m	- / -	RZ4FWA	-20 / -	2	Partial capture
10-04 17:04	40m	-14 / -	F5RAV	-12 / -18	3	✓ Closing observed
10-04 17:04	40m	- / -	HA7TM	+6 / -	2	Partial capture
10-04 17:03	40m	-14 / -	RA3PDG	- / 0	2	✓ Closing fragment
10-04 16:55	40m	- / -	LY2BSW	-2 / -	3	✓ Closing fragment
10-04 16:47	40m	-12 / -	BG8HNC	- / -18	2	✓ Closing fragment
10-04 16:44	40m	- / -11	RZ6AOJ	-8 / -	3	✓ Closing fragment
10-04 16:44	40m	- / -	UB2FEK	-10 / -	3	✓ Closing fragment
10-04 16:40	40m	-8 / -	UN1EAU	- / -16	2	✓ Closing fragment
10-04 16:37	40m	-6 / -1	RN2F	-10 / -12	3	✓ Full exchange observed
10-04 16:36	40m	- / -	HA7TM	+6 / -	3	Partial capture
10-04 16:34	40m	- / -10	OK2VCR	-10 / -	2	Partial capture
10-04 16:33	40m	- / -	HA7TM	+6 / -	2	Partial capture
09-29 17:17	40m	-7 / -14	R3MDA	-9 / -16	5	✓ Full exchange observed
09-24 17:06	40m	- / -	HA7TM	+6 / -	3	Partial capture
09-24 16:53	40m	- / -	HA7TM	+5 / -	2	Partial capture
09-24 16:48	40m	- / -	HA7TM	+8 / -	2	Partial capture
09-24 16:46	40m	- / -11	DD1OO	-6 / -	3	✓ Closing fragment
09-20 18:05	40m	-6 / -20	PA3BRB	-3 / -7	7	✓ Full exchange observed
09-20 18:03	40m	- / -	HA7TM	+16 / -	2	Partial capture
09-20 18:01	40m	- / -	RZ4FWA	-5 / -	3	Partial capture
09-20 17:59	40m	+2 / -7	R6DJR	-4 / -3	4	✓ Full exchange observed
09-20 17:56	40m	-5 / -	UA6LIK	- / -1	3	Partial capture
09-20 17:53	40m	- / -	HA7TM	+13 / -	3	Partial capture
09-20 17:52	40m	- / -	TC2EYL	-4 / -	2	✓ Closing fragment
09-20 17:48	40m	-7 / -12	S53AK	+2 / -6	9	✓ Full exchange observed
09-20 17:47	40m	-9 / 0	R3YAU	-2 / -1	4	✓ Full exchange observed
09-20 17:46	40m	-10 / -6	HA7TM	+9 / 0	4	Partial capture
09-20 17:44	40m	-8 / -1	UA9CR	-10 / 0	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
165500  -5 1980  R4FAH DL1DEU R-04
165530  -4  779  R4FAH RD7KW KN75
165530 -10 1980  R4FAH DL1DEU 73
165600  +0  779  R4FAH RD7KW R-13
165615 -22 1980  RD7KW R4FAH RR73
165630  -1  779  R4FAH RD7KW 73
190230 -16 1980  R4FAH TA2ED -14
190230  -1 2851  R4FAH IU8RFW JN70
190300 -15 1980  R4FAH TA2ED -14
190300  -3 2851  R4FAH IU8RFW JN70
190330 -19 1980  R4FAH TA2ED -14
190330  -1 2851  R4FAH IU8RFW JN70
190345  -6 1983  CQ R4FAH LO33
190400  -1 2851  R4FAH IU8RFW JN70 (x2)

80m

UTC    dB Audio  Message
172030 -10 1962  CQ R4FAH LO33 (x2)
172115  -4 1962  R4FAH E70SZ JN84
172115  +1 1505  R4FAH DL3RL JN59
172145  -3 1962  R4FAH E70SZ JN84
172145  +0 1505  R4FAH DL3RL JN59
172215  -4 1962  R4FAH E70SZ JN84 (x2)
172245 -18 1505  R4FAH DL3RL JN59
172300 -10 1962  E70SZ R4FAH -18
172315  -3 1962  R4FAH E70SZ R-14 (x2)
172430 -19 1962  CQ R4FAH LO33 (x2)
172630 -15 1962  RN2F R4FAH LO33

20m

UTC    dB Audio  Message
080815 -19 2057  CQ R4FAH LO33 (x2)
081415 -24 2058  RW4Z R4FAH R-16
081600 -15 2058  R4FAH F1PSX JN08
081615 -21 2058  R2BRD R4FAH -18
081830 -10 2401  R4FAH DL2VLL JO61
081845 -22 2058  SV2AOB R4FAH RR73
081900 -16 2401  R4FAH DL2VLL JO61 (x2)
050030 -14 2058  CQ R4FAH LO33
050215  -3 2632  R4FAH R7KM RR73 (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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