R0SAF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: OO22

Receiver-side FT8 activity involving R0SAF, decoded by SO8OO in southeastern Poland. 202 FT8 messages attributed to this token as transmitter, on 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-18.

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 202 FT8 messages attributed to R0SAF as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (90%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

202

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

20m · 202

First attributed message: 2026-06-06
Last attributed message: 2026-06-18 16:06 UTC

Observed FT8 message patterns

Attributed sample: 202 messages
Active dates: 8 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 49, moderate (-15 to -9 dB) 89, strong (≥ -8 dB) 64.

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 R0SAF in decoded directed-looking exchanges:

9A5E · Croatia DL6LAG · Fed. Rep. of Germany GW4BKG · Wales LA6HNA · Norway LZ1WV · Bulgaria RV3ID · European Russia UA4QK · European Russia EW8ABG · Belarus LZ3SD · Bulgaria R2SN · European Russia R3VA · European Russia RU3T · European Russia

Most frequent locator attributed to R0SAF

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: OO22 · 102 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 5,470 km (approx.)
Last such locator decoded: 2026-06-18 16:06 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	R0SAF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 13:12	40m	- / -11	RY3D	-2 / -	3	✓ Closing fragment
08-02 14:03	20m	- / -13	LA6HNA	-8 / -	3	✓ Closing fragment
08-01 15:13	20m	- / -13	UB4CJS	-22 / -	4	Partial capture
08-01 14:29	20m	- / -13	9A6NTK	+4 / -	2	Partial capture
07-28 16:28	40m	- / -21	YO9HP	-9 / -	2	✓ Closing fragment
07-25 18:27	20m	- / -3	9A5E	+3 / -	2	✓ Closing fragment
07-25 18:10	40m	- / -	RA3RGQ	-4 / -	5	Partial capture
07-25 18:07	40m	- / -17	LZ3SD	-14 / -	2	✓ Closing fragment
07-25 18:05	40m	- / -11	R3VA	-2 / -	2	✓ Closing fragment
07-25 18:02	40m	- / -12	R2SN	-4 / -	4	✓ Closing fragment
07-25 17:58	40m	- / -12	YR50NADIA	-16 / -	2	Partial capture
07-25 17:56	40m	- / -12	UB6OAJ	-9 / -	3	✓ Closing fragment
07-25 17:53	40m	- / -9	UA3SCU	-21 / -	2	Partial capture
07-25 17:53	40m	- / -19	RU3T	-4 / -	2	✓ Closing fragment
07-24 05:02	20m	- / -15	RV3ID	-12 / -	3	✓ Closing fragment
07-11 17:02	20m	- / -	IZ3ODB	-10 / -	2	Partial capture
07-11 17:01	20m	- / -	RA6ZS	-13 / -	2	Partial capture
07-11 16:47	20m	- / -13	DL6LAG	-13 / -	2	✓ Closing fragment
07-11 16:40	20m	- / -	LZ2SPD	-14 / -	2	Partial capture
07-11 16:33	20m	- / -	RN9N	-10 / -	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
180745 -14  854  R0SAF LZ3SD RR73
180945  -6 1112  R0SAF EW8ABG RR73
181015  -5 2735  R0SAF RA3RGQ LO02 (x2)
181115  -6 1851  R0SAF YR50NADIA -15
181115  -5 2735  R0SAF RA3RGQ LO02 (x3)
181445 -13 1052  R0SAF RJ6B KN95
181915 -10 1438  R0SAF UA6BCB KN95
162800  -9 1887  R0SAF YO9HP -21 (x2)
131200  +0 2339  R0SAF RY3D KO95 (x3)

20m

UTC    dB Audio  Message
182715  +0 2207  R0SAF 9A5E -03 (x2)
142915  +3 2621  R0SAF 9A6NTK -13 (x2)
151300 -21 1918  R0SAF UB4CJS -13 (x4)
152415 -15 2127  R0SAF GW4BKG RR73
152745  -8 2561  R0SAF DL1CF R-17
140300  -6 2585  R0SAF LA6HNA R-13 (x3)
143115 -13 1658  R0SAF UA4QK 73
140300  +1  345  R0SAF S56A JN76

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee