R0SAU — 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: Asiatic Russia Most frequent locator attributed to this token: OO04

Receiver-side FT8 activity involving R0SAU, decoded by SO8OO in southeastern Poland. 125 FT8 messages attributed to this token as transmitter, on 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-28.

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 125 FT8 messages attributed to R0SAU as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (79%) fell within the six-hour window 10:00-16:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.

Overview

125

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 125

First attributed message: 2026-06-10
Last attributed message: 2026-08-28 14:24 UTC

Observed FT8 message patterns

Attributed sample: 125 messages
Active dates: 16 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 81.

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 R0SAU in decoded directed-looking exchanges:

9J2MM · Zambia CT3MD · Madeira Islands D2IM · Angola DB9LG · Fed. Rep. of Germany F1ODM · France F6CAX · France GJ0KYZ · Jersey MM3RCR · Scotland R0CAF · Asiatic Russia R3UDU · European Russia R4YBG · European Russia R6ZA · 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.

Most frequent locator attributed to R0SAU

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: OO04 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 5,129 km (approx.)
Last such locator decoded: 2026-08-21 14:41 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	R0SAU S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 15:05	80m	- / -22	HA7TM	+6 / -	2	Partial capture
11-04 15:01	80m	- / -	LA9GX	-22 / -	3	Partial capture
11-04 14:46	80m	- / -16	RN3TT	-12 / -	2	✓ Closing fragment
11-04 14:04	80m	- / -16	RD7X	-13 / -	3	✓ Closing fragment
10-08 14:21	40m	- / -14	R80SAA	+3 / -	2	✓ Closing fragment
10-08 14:19	40m	- / -14	R6ZB	-3 / -	2	✓ Closing fragment
10-08 14:18	40m	- / -3	UA3SCU	-12 / -	2	✓ Closing fragment
10-07 16:00	40m	- / -9	OH5KNL	+8 / -	2	Partial capture
10-07 16:00	40m	- / -10	RA3THN	-7 / -	2	Partial capture
10-07 15:42	40m	- / -16	R4PFY	-14 / -	4	Partial capture
10-07 15:39	40m	- / -	HB9ELE	+6 / -	3	Partial capture
10-07 15:25	40m	- / -18	SP4BB	-1 / -	3	✓ Closing fragment
10-07 15:09	40m	- / -21	YU7GMN	+7 / -	2	✓ Closing fragment
10-07 14:57	40m	- / -15	R3HH	-8 / -	2	Partial capture
10-06 13:13	40m	- / -13	RX3AEX	-13 / -	2	✓ Closing fragment
10-05 15:55	40m	- / -15	R8CKV	-8 / -	2	✓ Closing fragment
10-05 15:40	40m	- / -6	EX7CQ	-13 / -	2	✓ Closing fragment
10-05 15:31	80m	- / -15	UA4FKT	-1 / -	3	✓ Closing fragment
08-28 14:23	20m	-9 / -9	MM3RCR	+18 / -6	6	✓ Full exchange observed
08-25 15:54	20m	+3 / -	ZS6KVZ	- / -9	4	Partial capture
08-24 14:05	20m	0 / -	UB0SMX/P	- / -19	4	Partial capture
08-23 14:37	20m	-5 / -8	R3WDU	-14 / -17	3	Partial capture
08-23 14:32	20m	+10 / -	ZS5BR	- / -15	4	✓ Closing fragment
08-23 14:31	20m	+1 / -	UB4HVI	- / -8	2	Partial capture
08-23 13:00	20m	- / -	IV3JER	-3 / -	15	Partial capture
08-23 12:59	20m	- / +10	R3UDU	-9 / -	2	✓ Closing fragment
08-23 12:49	20m	- / -	ON1AJ	+10 / -	4	Partial capture
08-23 12:43	20m	-12 / -1	R6ZAJ	-5 / -8	3	✓ Full exchange observed
08-23 08:44	20m	- / -6	F1ODM	0 / -	2	✓ Closing fragment
08-22 03:53	20m	- / -18	CT3MD	-2 / -	3	✓ Closing fragment
08-22 01:56	20m	- / -15	D2IM	-11 / -	3	✓ Closing fragment
08-21 15:12	20m	- / -7	UB4HVA	-5 / -	3	✓ Closing fragment
08-21 14:59	20m	-1 / -	9J2MM	- / -12	3	Partial capture
08-21 14:57	20m	-3 / -	<...>	- / -11	3	Partial capture
08-21 14:54	20m	-6 / -	UB8QBY	- / -4	5	Partial capture
08-21 14:51	20m	-5 / -	R0CAF	-16 / -10	7	✓ Closing observed
08-21 14:50	20m	-2 / -	UA1WBV	- / -10	2	✓ Closing fragment
08-21 14:48	20m	-3 / -	UA3MLR	- / -11	4	✓ Closing fragment
08-21 14:44	20m	-5 / -	UB8CSU	- / -11	4	✓ Closing fragment
08-21 14:42	20m	- / -	DL4RBR	-4 / -	3	Partial capture
08-21 14:41	20m	- / -9	F6CAX	-2 / -	3	✓ Closing fragment
08-21 14:39	20m	-5 / -	VU2FR	- / -1	3	✓ Closing fragment
08-21 14:36	20m	-2 / -15	DB9LG	+2 / -16	5	✓ Full exchange observed
08-21 14:34	20m	-4 / -	R6ZA	-14 / -13	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
153115  -1 1844  R0SAU UA4FKT LO23 (x3)
140430 -16 1848  R0SAU RD7X -16 (x3)
144600 -11 1740  R0SAU RN3TT R-16 (x2)
145130 -17 2112  R0SAU R0AH R+01
150115 -24 2352  R0SAU LA9GX JO59 (x3)
150515  +6  252  R0SAU HA7TM R-22 (x2)

40m

UTC    dB Audio  Message
154500 -12 1740  R0SAU R4PFY R-16
155530  -2 1984  R0SAU YO9PH R-09
160000  -6 1617  R0SAU RA3THN R-10
160015  +9 2557  R0SAU OH5KNL R-09
160030  -8 1617  R0SAU RA3THN R-10
160045  +6 2557  R0SAU OH5KNL R-09
160500 -11 1796  R0SAU RU3VT 73
141145 -10 1427  R0SAU R3DID 73
141830 -11 1152  R0SAU UA3SCU -03 (x2)
141930  -3  446  R0SAU R6ZB -14 (x2)
142130  +3 2587  R0SAU R80SAA R-14 (x2)
135245 -11  661  R0SAU RO2T 73

20m

UTC    dB Audio  Message
140545  +0  471  UB0SMX/P R0SAU -19 (x3)
155415  -2 1010  ZS6KVZ R0SAU -09 (x4)
130130  -8 2042  R4YBG R0SAU RR73
142000  -4  377  <...> R0SAU -08
142315  -8 2602  MM3RCR R0SAU -06
142330 +17 2602  R0SAU MM3RCR R-09
142345  -8 2603  MM3RCR R0SAU -06
142400 +18 2602  R0SAU MM3RCR R-11
142415 -11 2602  MM3RCR R0SAU RR73
142430 +18 2602  R0SAU MM3RCR 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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