R4AAR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LN18

Receiver-side FT8 activity involving R4AAR, decoded by SO8OO in southeastern Poland. 2,765 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-06.

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 2,765 FT8 messages attributed to R4AAR as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (35%), followed by 20 m (34%) and 80 m (28%). Most decodes (53%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

2,765

Messages attributed

UTC dates decoded

265

Active 15-min windows

-15 dB

Estimated median S/N

Bands

160m · 5 80m · 774 40m · 973 20m · 948 10m · 65

First attributed message: 2026-06-06
Last attributed message: 2026-09-06 04:55 UTC

Observed FT8 message patterns

Attributed sample: 2,765 messages
Active dates: 31 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,322, moderate (-15 to -9 dB) 863, strong (≥ -8 dB) 580.

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 R4AAR in decoded directed-looking exchanges:

TA2ED · Asiatic Turkey ×4 RA3WY · European Russia ×3 IV3GHY · Italy ×2 EA3CUU · Spain ×2 R6FML · European Russia ×2 R6DJR · European Russia ×2 US1EA · Ukraine ×2 EW8DU · Belarus ×2 UA3WG · European Russia ×2 RA6KR · European Russia ×2 PA3FPQ · Netherlands ×2 EA5AR · Spain ×2

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 R4AAR

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: LN18 · 1,031 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,543 km (approx.)
Last such locator decoded: 2026-09-04 18:34 UTC

Other locator fields attributed to this token: LO20 (387), LO30 (180), LO00 (156), and LN29 (152).

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	R4AAR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 18:31	160m	- / -13	RT3G	-18 / -	4	✓ Closing fragment
09-04 18:22	160m	- / -24	RW3VA	-22 / -	11	Partial capture
09-04 17:46	160m	- / -	RC6OZ	-10 / -	2	✓ Closing fragment
09-04 17:45	160m	- / +1	RY3K	+8 / -	3	✓ Closing fragment
09-04 17:38	160m	-21 / -13	UA4LDP	-19 / -10	4	✓ Full exchange observed
09-04 17:30	160m	- / -	RY3K	+10 / -	2	Partial capture
09-04 17:23	160m	- / -21	RA6ATZ	-16 / -	2	✓ Closing fragment
08-30 05:33	20m	- / -	4X1ST	-4 / -	2	Partial capture
08-30 05:30	20m	-8 / -	R2BGZ	- / -8	2	✓ Closing fragment
08-30 05:24	20m	-8 / -	IV3DSG	- / -14	2	✓ Closing fragment
08-30 05:14	20m	-6 / -	TA1DH	- / -16	2	✓ Closing fragment
08-30 05:09	20m	-2 / -	RC1TF	- / -1	2	✓ Closing fragment
08-30 05:05	20m	+1 / -	SV1GYN	- / -8	2	✓ Closing fragment
08-30 04:54	20m	+2 / +10	RL3T	+1 / -	5	✓ Full exchange observed
08-30 04:48	20m	-5 / -	9A2TN	- / -7	3	Partial capture
08-29 18:08	20m	- / -	DM9EE	-14 / -	2	✓ Closing fragment
08-29 18:02	20m	- / -21	EA1NT	-15 / -	8	Partial capture
08-29 17:22	40m	- / -12	DK0ACI	-7 / -	3	Partial capture
08-29 17:22	40m	- / -	G0OYQ	-8 / -	2	Partial capture
08-29 17:14	40m	- / +2	R2BRU	-15 / -	3	✓ Closing fragment
08-29 17:12	40m	- / -12	DF8RU	+5 / -	4	Partial capture
08-29 16:22	40m	- / -	G0OYQ	-10 / -	2	Partial capture
08-29 15:51	40m	-14 / -	RA9MAI	- / -19	2	✓ Closing fragment
08-29 15:50	40m	-16 / -	R0ADN	- / -11	2	✓ Closing fragment
08-29 15:49	40m	-14 / -5	E75D	-10 / -14	4	✓ Full exchange observed
08-29 15:46	40m	- / -	EW8DG	-3 / -	4	Partial capture
08-29 15:25	40m	- / -	PD0PMF	-7 / -	6	Partial capture
08-29 15:20	40m	- / -18	RA4ABH	-13 / -	10	Partial capture
08-29 15:09	40m	-14 / -	UN9GAM	- / 0	2	✓ Closing fragment
08-29 10:08	20m	- / -	OT8T	-13 / -	3	Partial capture
08-29 09:54	20m	- / -	F4BYA	-1 / -	5	Partial capture
08-29 09:48	20m	- / -	OT8T	-18 / -	5	Partial capture
08-29 09:46	20m	- / -	F4BYA	+6 / -	2	Partial capture
08-29 09:38	20m	- / -	F4BYA	+4 / -	3	Partial capture
08-29 08:45	20m	- / -17	EA3RR	0 / -	4	✓ Closing fragment
08-29 08:42	20m	- / -13	PD3AN	-5 / -	3	✓ Closing fragment
08-29 08:40	20m	- / -	F4BYA	+10 / -	5	Partial capture
08-29 08:36	20m	- / -	F4BYA	+2 / -	4	Partial capture
08-29 08:28	20m	- / -	F4BYA	+4 / -	6	Partial capture
08-29 08:22	20m	- / -	F4BYA	-1 / -	3	Partial capture
08-29 08:18	20m	- / -15	DD9MI	-12 / -	2	Partial capture
08-29 08:16	20m	- / -	F4BYA	+1 / -	6	Partial capture
08-29 08:12	20m	- / -	F4BYA	-8 / -	3	Partial capture
08-29 08:08	20m	- / -	F4BYA	-2 / -	3	Partial capture
08-29 08:05	20m	- / -11	F5GPE	-11 / -	2	Partial capture
08-29 07:51	20m	- / -19	UA6HFI	-8 / -	3	✓ Closing fragment
08-29 07:49	20m	- / -	PA3FPQ	-6 / -	2	✓ Closing fragment
08-29 07:35	20m	- / -	F4BYA	-10 / -	5	Partial capture
08-29 07:30	20m	- / -	F4BYA	-10 / -	2	Partial capture
08-29 07:22	20m	- / -13	MW0DNF	-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
171615 -10 1667  CQ R4AAR LN18
171630 -10 1667  R4AAR DC9JVN JN59
171700  -5  681  R4AAR G0OYQ IO93
171745  +0 1667  CQ R4AAR LN18 (x2)
172200  -5  681  R4AAR G0OYQ IO93
172230  -7  483  R4AAR DK0ACI -12
172230 -10  681  R4AAR G0OYQ IO93
172300  -6  483  R4AAR DK0ACI -12 (x2)
172645  -6 1667  CQ R4AAR LN18
045030 -13 2081  SP1FM/P R4AAR -05
045115 -19 1259  R4AAR UF6V/UA5D R+04
045345  -4 1194  R4AAR 3Z100LKK R-01
045545 -15 1486  OZ8MW/P R4AAR -19

160m

UTC    dB Audio  Message
182300 -24 1772  R4AAR RW3VA R-24 (x9)
183100 -17 1947  R4AAR RT3G KO92 (x4)
183415 -18 1871  CQ R4AAR LN18 (x2)

20m

UTC    dB Audio  Message
052745 -11 1751  CQ R4AAR LN18 (x3)
053045 -10 1751  R2BGZ R4AAR -08 (x2)
053145  -7 1751  CQ R4AAR LN18 (x3)
053300  -4 2376  R4AAR 4X1ST KM72
053315  -2 1751  CQ R4AAR LN18
053330  -4 2376  R4AAR 4X1ST KM72
053345  -9 1751  CQ R4AAR LN18 (x4)

80m

UTC    dB Audio  Message
182345 -15 1889  R4AAR R2GFD KO92 (x5)
183845  -8  751  R4AAR R6DZJ KN85
175415 -18 1572  CQ R4AAR LO20                         a1 (x2)
175530  -4 1571  R4AAR SP5MIG -12
172045  -2 1522  R4AAR R5ACQ R-09
172100 -17 1985  R5ACQ R4AAR RR73
172115  -1 1522  R4AAR R5ACQ 73
193415 -22 1714  CQ R4AAR LN18
193500  +8 2780  R4AAR R3ZBR KO80 (x2)

10m

UTC    dB Audio  Message
071130  -1 2943  R4AAR RA7T -13
071215 -12 2053  EU4BE R4AAR RR73
124615 -11 2190  SQ5WBW/P R4AAR -08 (x3)
125130 -11 2206  <...> R4AAR -14
073145  -2  438  R4AAR IK4LZH JN54
074915 -11 2450  R4AAR IU0VOG JN61 (x2)
075345  -7 1003  R4AAR R6DOB KN95 (x3)
075815 -23 1803  R4AAR R6SH KN77
084145 -19 1321  R4AAR R6KEE 73
071400 -11 1095  R4AAR ON2RX JO20

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.

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