R4AFR — 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: LN28

Receiver-side FT8 activity involving R4AFR, decoded by SO8OO in southeastern Poland. 1,084 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 42 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,084 FT8 messages attributed to R4AFR as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 20 m (23%) and 40 m (16%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,084

Messages attributed

UTC dates decoded

164

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 663 40m · 175 20m · 246

First attributed message: 2026-06-07
Last attributed message: 2026-10-13 19:41 UTC

Observed FT8 message patterns

Attributed sample: 1,084 messages
Active dates: 42 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 304, moderate (-15 to -9 dB) 417, strong (≥ -8 dB) 363.

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 R4AFR in decoded directed-looking exchanges:

R2APC · European Russia ×3 EU1EU · Belarus ×3 LZ3CB · Bulgaria ×2 R1BDX · European Russia ×2 R4FDD · European Russia ×2 R4UA · European Russia ×2 R6ZCE · European Russia ×2 RD7X · European Russia ×2 R6OD · European Russia RA6YDX · European Russia RT6Z · European Russia BG5JGG · China

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 R4AFR

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: LN28 · 669 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,686 km (approx.)
Last such locator decoded: 2026-10-13 19:41 UTC

Other locator fields attributed to this token: LO21 (54).

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	R4AFR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-13 19:44	80m	- / -	DO8JB	-1 / -	3	Partial capture
10-13 19:35	80m	- / -	F4JYH	+3 / -	5	Partial capture
10-13 18:01	80m	- / -	OM1TD	+6 / -	4	Partial capture
10-13 17:56	80m	- / -3	R2APC	-3 / -	2	✓ Closing fragment
10-13 17:47	80m	- / -	R2APC	-8 / -	2	Partial capture
10-13 17:47	80m	- / -18	RD4CAF	-15 / -	2	✓ Closing fragment
10-13 17:44	80m	- / -6	UA3IBK	-10 / -	2	Partial capture
10-13 17:18	80m	- / -	OZ1BM	-3 / -	3	Partial capture
10-13 17:13	80m	-22 / -	DL/AD2LX	- / -8	2	Partial capture
10-11 17:04	40m	- / -9	R2ASY	-10 / -	3	✓ Closing fragment
10-11 16:47	40m	- / -6	RZ6AKF	-2 / -	3	✓ Closing fragment
10-11 16:39	40m	- / -	RL2Y	-7 / -	2	Partial capture
10-11 16:26	40m	- / +1	R6ZCE	-4 / -	2	✓ Closing fragment
10-11 04:47	40m	- / -	DH5BM	-17 / -	4	Partial capture
10-11 04:44	40m	- / -	DJ0MAB	-10 / -	6	Partial capture
10-11 04:41	40m	- / -	UB3PAQ	-16 / -	2	✓ Closing fragment
10-11 04:36	40m	- / -22	OD5KU	-11 / -	5	✓ Closing fragment
10-11 04:32	40m	-21 / -	R4UA	-7 / -	2	✓ Closing observed
10-11 04:30	40m	- / -	US3EW	-1 / -	2	Partial capture
10-11 04:00	80m	- / -17	SP5MXZ	+3 / -	3	✓ Closing fragment
10-11 03:37	80m	- / -	RA3VX	-10 / -	4	Partial capture
10-11 03:36	80m	- / -13	UB6HJZ	-21 / -	3	✓ Closing fragment
10-11 03:25	80m	- / -3	YO6GLT	-4 / -	2	✓ Closing fragment
10-11 03:15	80m	- / -	EA1IOK	+8 / -	5	Partial capture
10-11 03:14	80m	-20 / -3	YO6GLT	+8 / -2	6	Partial capture
10-11 03:11	80m	- / -13	UA3YPS	-4 / -	2	✓ Closing fragment
10-11 02:59	80m	- / -	DO1ANB	-20 / -	10	Partial capture
10-11 02:59	80m	- / -9	IK2UVR	-14 / -	3	✓ Closing fragment
10-11 02:57	80m	- / -16	GM6URC	-1 / -	3	Partial capture
10-11 02:49	80m	-24 / -	E73X	0 / -10	3	✓ Closing observed
10-11 02:47	80m	-18 / -10	DJ4WM	-2 / -13	4	✓ Full exchange observed
10-11 02:39	80m	-10 / -22	UA3VFL	-3 / -10	4	✓ Full exchange observed
10-11 02:39	80m	- / -	F4FPR	-8 / -	5	Partial capture
10-11 02:33	80m	-8 / -	RA3TNV	- / -13	2	✓ Closing fragment
10-11 02:32	80m	-5 / -8	YU0U	+10 / -13	4	✓ Full exchange observed
10-11 01:29	80m	- / -	DK4RH	+4 / -	4	Partial capture
10-11 01:27	80m	- / -	ON4MAP	-11 / -	4	Partial capture
10-10 18:11	80m	- / -9	UA3GIE	-1 / -	3	✓ Closing fragment
10-10 17:57	40m	-14 / -17	PE1JLZ	-14 / -	7	✓ Closing observed
10-10 17:44	40m	- / -	HB9MZI	-12 / -	4	Partial capture
10-10 17:42	40m	- / -	IU2THY	+13 / -	3	Partial capture
10-10 17:35	40m	- / -	DL3IAK	-4 / -	12	Partial capture
10-10 17:32	40m	- / -	HB9MZI	-16 / -	2	Partial capture
10-10 17:19	40m	-20 / -	RA3AJT	-2 / +2	3	✓ Closing observed
10-10 17:14	40m	-15 / -11	RA3AJT	+2 / +2	2	Partial capture
10-10 16:42	40m	- / -10	R3DMX	-7 / -	2	✓ Closing fragment
10-10 16:14	80m	-23 / -	RZ0SW	- / -	5	Partial capture
10-07 20:42	80m	- / -	DH1KJ	+11 / -	2	Partial capture
10-07 20:42	80m	- / -13	EU1EU	+4 / -	2	✓ Closing fragment
10-07 20:31	40m	- / -	EB2EMZ	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
204645  -6 1509  R4AFR RA6YDX LN04 (x4)
205315 +12 2892  R4AFR RT6Z KN98 (x4)
165745  +5  759  R4AFR RM5F KO85
174030 -13  654  R4AFR R6OD 73

80m

UTC    dB Audio  Message
180315 +10  941  R4AFR OM1TD JN88
181130 -21 1314  CQ R4AFR LN28                         a1
193545  +2 2864  R4AFR F4JYH JN04
193600 -13 1183  CQ R4AFR LN28
193615  +0 2864  R4AFR F4JYH JN04
193630  -9 1183  CQ R4AFR LN28
193645  +7 2864  R4AFR F4JYH JN04 (x3)
194100 -24 1183  CQ R4AFR LN28
194145  -3 1184  R4AFR DO8JB JO32 (x4)
194600 -12 1170  R4AFR RA9SBN -03

40m

UTC    dB Audio  Message
044845 -19 1250  R4AFR DH5BM JO41
162530 -17 1293  CQ R4AFR LN28
162645  -5  587  R4AFR R6ZCE R+01 (x2)
163915  -9 1292  R4AFR RL2Y KO62 (x2)
164745  -3 1292  R4AFR RZ6AKF KN95 (x3)
165815  -4 1292  R4AFR R4FDD RR73
170445  -8 1292  R4AFR R2ASY KO85 (x3)
172100 -15 1292  CQ R4AFR LN28
155630 -17 2305  R4AFR R5BM/6 +00

60m

UTC    dB Audio  Message
193545 -13 1764  R4AFR DH0BRO JO62

20m

UTC    dB Audio  Message
192300 -19 1414  CQ R4AFR LN28 (x6)
192545  +6 2587  R4AFR DL1R JN58 (x9)

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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