RV3YN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO73

Receiver-side FT8 activity involving RV3YN, decoded by SO8OO in southeastern Poland. 4,863 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-08.

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 4,863 FT8 messages attributed to RV3YN as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 80 m (36%) and 20 m (10%). Most decodes (66%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

4,863
Messages attributed
80
UTC dates decoded
554
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-08 16:11 UTC

Observed FT8 message patterns

Attributed sample
4,863 messages
Active dates
80 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-19 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,270, moderate (-15 to -9 dB) 1,762, strong (≥ -8 dB) 1,831.

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.

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 RV3YN

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
KO73 · 3,534 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
990 km (approx.)
Last such locator decoded
2026-10-08 16:11 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 UTCBandRV3YN S/NCounterpartCounterpart S/NMsgsCapture
10-08 15:32 80m - / - RA1QCX -12 / - 4 Partial capture
10-08 15:31 40m -8 / - DJ1NE -8 / - 2 ✓ Closing observed
10-08 15:26 40m -12 / -13 S57FF +2 / -5 3 ✓ Full exchange observed
10-08 15:20 40m -18 / - UA2FFD - / - 3 Partial capture
10-08 14:57 40m -12 / - BG2GWN - / - 3 Partial capture
10-08 14:50 40m -14 / - UA4NCX - / -1 5 ✓ Closing fragment
10-08 14:44 40m -13 / -6 S51UN -4 / - 4 ✓ Closing observed
10-08 14:39 40m -16 / - R6DZO - / -9 2 ✓ Closing fragment
10-08 14:33 40m -17 / - RU3RA - / +9 11 ✓ Closing fragment
10-08 14:32 40m -20 / -12 I4VJC -12 / -9 5 ✓ Full exchange observed
10-08 14:29 40m -18 / - PA3BOM - / - 3 Partial capture
10-08 14:25 40m -20 / - PA3BOM - / - 2 Partial capture
10-08 14:16 40m -13 / - R6ZB - / - 10 Partial capture
10-08 14:11 40m -14 / - R6ZB - / - 2 Partial capture
10-08 14:08 40m -15 / - RU3RA - / - 4 Partial capture
10-08 14:04 40m -20 / -1 UA3QNA +1 / - 3 ✓ Closing observed
10-08 14:02 40m -20 / -22 OE8PIT -2 / - 4 Partial capture
10-08 14:00 40m -16 / -1 RA6FCU/P -16 / +3 3 Partial capture
10-08 13:59 40m - / -8 R80SAA -6 / - 2 ✓ Closing fragment
10-08 13:55 40m -15 / - UB4CJS - / +3 3 ✓ Closing fragment
10-08 13:52 40m -15 / - R4WZ - / -6 5 ✓ Closing fragment
10-08 13:50 40m -17 / - RU3X - / +3 3 ✓ Closing fragment
10-08 13:48 40m -16 / - UN7PNF - / -12 4 ✓ Closing fragment
10-08 13:45 40m -14 / - SP4BB - / - 4 Partial capture
10-08 13:41 40m -14 / - UB8SII - / - 3 Partial capture
10-08 13:39 40m -12 / - RK1K - / - 2 ✓ Closing fragment
10-07 17:27 80m - / -15 RA3DAD +4 / - 3 ✓ Closing fragment
10-07 17:18 80m -9 / - UA9FMT - / - 9 Partial capture
10-07 17:10 80m - / -13 HA2EOA +9 / - 3 ✓ Closing fragment
10-07 17:08 80m -14 / -15 PA4CC +6 / - 4 ✓ Closing observed
10-07 17:06 80m -12 / -16 R4CC -7 / - 4 ✓ Closing observed
10-07 17:02 80m -5 / -17 ES8JX 0 / -12 6 ✓ Full exchange observed
10-07 16:58 80m -10 / -14 RD4CAF -18 / - 2 ✓ Closing observed
10-07 16:56 80m -7 / -10 R1TET -14 / - 4 ✓ Closing observed
10-07 16:51 80m -7 / - UA1CKA - / +3 3 ✓ Closing fragment
10-07 16:48 80m -14 / - R2XM - / -3 2 ✓ Closing fragment
10-07 12:13 40m -18 / -12 HA7TM +4 / - 3 ✓ Closing observed
10-07 12:06 40m -20 / -8 YO9PH 0 / - 3 ✓ Closing observed
10-07 11:46 40m - / - S55A -12 / - 3 Partial capture
10-07 11:44 40m -22 / - R2EA - / - 2 Partial capture
10-07 11:41 40m - / +3 SQ8AZT -19 / - 2 ✓ Closing fragment
10-07 03:54 80m -10 / - RA6ATZ - / -19 5 ✓ Closing fragment
10-07 03:53 80m -10 / -23 SV1ENG -3 / -19 5 ✓ Full exchange observed
10-07 03:49 80m -22 / -9 SP8XGU -6 / -12 5 ✓ Full exchange observed
10-07 03:46 80m -17 / -8 DL4HTK -1 / -20 5 ✓ Full exchange observed
10-07 03:43 80m -21 / - IQ9SZ/2 - / - 3 Partial capture
10-07 03:42 80m -21 / -1 SQ2BXI -21 / -18 4 ✓ Full exchange observed
10-07 03:41 80m -19 / -15 R6SS 0 / -8 4 ✓ Full exchange observed
10-07 03:40 80m - / -5 OH6IH 0 / - 2 Partial capture
10-07 03:39 80m - / -18 MI0OBC -5 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
155900  -2 2154  RV3YN I4WQH JN54
160045 -12 2156  CQ RV3YN KO73 (x13)
161200 -15 2155  RV3YN DL1THB JO64
80m
UTC    dB Audio  Message
172045  -9 2166  UA9FMT RV3YN KO73 (x5)
172415 -11 2166  CQ RV3YN KO73
172700  +4 1052  RV3YN RA3DAD KO95 (x3)
173315 -12 2166  CQ RV3YN KO73 (x2)
153200  -9 2120  RV3YN RA1QCX KP80 (x4)
160m
UTC    dB Audio  Message
175545  -5 2215  RV3YN UA3GX R-04 (x2)
004615 -13 2328  CN8NS RV3YN KO73 (x3)
004900  +5 1796  RV3YN UA3AGW -15 (x2)
005030 -18 2021  RV3YN UA6JQ RR73 (x2)
005115 -12 2327  UA6JQ RV3YN 73
005145 -16 2327  CQ RV3YN KO73 (x5)
20m
UTC    dB Audio  Message
113430  -9 2312  CQ RV3YN KO73 (x2)
113515  -8 1351  RV3YN R6XW LN13
113530 -12 2312  R6XW RV3YN -01 (x3)
113715 -14 1351  RV3YN R6XW R-16 (x4)
114200  -5 2312  TA7TC RV3YN R-22 (x4)
143815  -8 1576  RV3YN 4X5ZX -08
10m
UTC    dB Audio  Message
105345 -23 1863  RV3YN OE5WRO JN78 (x2)
105715 -23 1864  RV3YN RW6HPS LN15
110300 -24 1862  UD1I RV3YN -16 (x3)
085300 -16 1695  RV3YN RW3VA LO06 (x3)
085715 -22 2162  R2ATJ RV3YN -15
085815 -19 2160  CQ RV3YN KO73 (x2)

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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