YO3FVR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN34

Receiver-side FT8 activity involving YO3FVR, decoded by SO8OO in southeastern Poland. 89 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-19.

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 89 FT8 messages attributed to YO3FVR as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (75%), followed by 20 m (25%). Most decodes (72%) 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 -12 dB.

Overview

89
Messages attributed
16
UTC dates decoded
24
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 67 20m · 22
First attributed message: 2026-06-12
Last attributed message: 2026-09-19 18:42 UTC

Observed FT8 message patterns

Attributed sample
89 messages
Active dates
16 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 35.

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 YO3FVR in decoded directed-looking exchanges:

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 YO3FVR

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
KN34 · 37 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
721 km (approx.)
Last such locator decoded
2026-09-05 20:46 UTC

Other locator fields attributed to this token: KN25 (25).

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 UTCBandYO3FVR S/NCounterpartCounterpart S/NMsgsCapture
09-19 20:31 40m - / -6 EA8UP 0 / - 8 Partial capture
09-19 18:50 40m - / - SP4KDK +5 / - 3 Partial capture
09-19 18:50 40m - / -16 R4FJ -15 / - 4 Partial capture
09-19 18:47 40m - / -9 UC6D +6 / - 2 ✓ Closing fragment
09-19 18:42 40m - / -12 R4HLO -16 / - 6 ✓ Closing fragment
09-19 18:38 40m - / -10 ON1DGN -5 / - 4 Partial capture
09-19 07:11 40m - / - US1MM +1 / - 3 Partial capture
09-12 19:22 40m - / -16 SQ2BXI -6 / - 13 Partial capture
09-12 19:06 40m - / - SQ2BXI -12 / - 4 Partial capture
09-05 20:37 40m +2 / 0 LA1FDG -5 / -15 20 ✓ Full exchange observed
09-04 05:47 40m -5 / -13 DK5UR 0 / - 7 Partial capture
09-01 05:33 40m +2 / -4 DK5UR -8 / -17 10 ✓ Full exchange observed
08-30 19:49 40m +2 / - S56MLZ - / - 3 Partial capture
08-30 19:43 40m -11 / -8 S56MLZ -1 / - 2 Partial capture
08-30 10:28 20m - / -15 PD3AN -2 / - 2 Partial capture
08-13 20:27 40m -20 / -8 DL5DQZ -4 / - 5 ✓ Full exchange observed
08-13 20:23 40m - / - DR800WE -2 / - 3 ✓ Closing fragment
08-13 20:23 40m - / -7 DL1IP -12 / - 2 ✓ Closing fragment
08-13 20:21 40m -18 / -12 R5AV -10 / - 4 ✓ Full exchange observed
08-06 17:22 20m - / - R4FES -12 / - 2 Partial capture
08-06 16:00 20m - / -14 EA5IT -8 / - 4 ✓ Closing fragment
07-26 17:41 20m -15 / - TN8GD - / - 4 Partial capture
07-21 06:46 20m -16 / - <...> - / - 2 Partial capture
07-10 05:41 40m -15 / - <...> - / -17 2 Partial capture
06-28 15:36 20m - / - EA5JKT -17 / - 6 Partial capture
06-28 09:50 20m -8 / -20 YO3GNF -6 / -10 8 ✓ Full exchange observed
06-28 09:48 20m -8 / -18 IK2XDF -14 / -15 5 ✓ Full exchange observed
06-28 09:33 20m - / - G0LKL -19 / - 10 Partial capture
06-28 09:28 20m - / -8 OZ9GA -7 / - 4 ✓ Closing fragment
06-28 09:27 20m - / -9 DL9PN -8 / - 5 ✓ Closing fragment
06-28 09:26 20m - / -2 I4RHP -5 / - 3 Partial capture
06-28 09:21 20m - / - G0LKL -20 / - 5 Partial capture
06-27 23:33 20m - / -10 IQ4JO +5 / - 4 ✓ Closing fragment
06-27 17:22 20m - / - DL1SWB -4 / - 4 Partial capture
06-27 15:52 20m - / - DL8UVG +4 / - 3 Partial capture
06-27 15:47 20m - / - DL1R -3 / - 6 Partial capture
06-27 15:46 20m - / -16 SP6AXW -10 / - 7 ✓ Closing fragment
06-27 15:43 20m - / -5 A71AT -7 / - 3 ✓ Closing fragment
06-26 22:15 40m - / - IU5VLR -10 / - 2 Partial capture
06-26 21:48 40m -15 / 0 SP9D -2 / - 3 ✓ Closing observed
06-26 21:47 40m -14 / -6 S51PV -17 / -8 2 Partial capture
06-26 21:45 40m -13 / - SP9AU - / -6 3 ✓ Closing fragment
06-26 21:43 40m -13 / -19 SP1TJ -4 / -10 5 ✓ Full exchange observed
06-26 21:34 40m -23 / -21 SQ2SKI +2 / - 19 ✓ Closing observed
06-26 21:32 40m - / -15 SP9RIO -13 / - 2 ✓ Closing fragment
06-26 21:22 40m - / -8 SP1EG -16 / - 2 ✓ Closing fragment
06-26 21:17 40m - / -10 UA3VVA -20 / - 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
185045  +8  577  YO3FVR SP4KDK JO93
185045 -14 1437  YO3FVR R4FJ R-16
185115  +7  577  YO3FVR SP4KDK JO93
185115 -15 1437  YO3FVR R4FJ R-16
185145  +1  577  YO3FVR SP4KDK JO93
185145 -15 1437  YO3FVR R4FJ R-16
202700 -15 1164  YO3FVR F1IQH JN27
203100  +0 2384  YO3FVR EA8UP -06 (x8)
20m 
UTC    dB Audio  Message
174145 -15 1496  TN8GD YO3FVR KN34 (x3)
160045  -6  322  YO3FVR EA5IT IM99 (x4)
172245 -15 2369  YO3FVR R4FES LO23 (x2)
091645 -13  680  YO3FVR F4MAK R-15
124115 -23 1628  YO3FVR DG0WOL JO60
162745 -12  848  YO3FVR EA5W IM97
100645  +5  400  YO3FVR F4MRJ/P +02
102800  -2 2708  YO3FVR PD3AN -15 (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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