YT3VOL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Serbia Most frequent locator attributed to this token: KN04

Receiver-side FT8 activity involving YT3VOL, decoded by SO8OO in southeastern Poland. 285 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-07-29.

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 285 FT8 messages attributed to YT3VOL as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (20%). Most decodes (90%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.4 dB.

Overview

285
Messages attributed
7
UTC dates decoded
43
Active 15-min windows
-8.4 dB
Estimated median S/N

Bands

40m · 58 20m · 227
First attributed message: 2026-06-06
Last attributed message: 2026-07-29 17:39 UTC

Observed FT8 message patterns

Attributed sample
285 messages
Active dates
7 UTC dates
Estimated median S/N
-8.4 dB
Estimated 10th-90th percentile
-18 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 57, moderate (-15 to -9 dB) 85, strong (≥ -8 dB) 143.

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 YT3VOL 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 YT3VOL

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
KN04 · 205 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
608 km (approx.)
Last such locator decoded
2026-07-29 17:26 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 UTCBandYT3VOL S/NCounterpartCounterpart S/NMsgsCapture
07-29 17:36 20m -15 / - SP1ZMO - / - 5 Partial capture
07-29 17:29 20m -17 / - SP9DAT - / -5 2 Partial capture
07-29 17:29 20m -14 / 0 R6YG -12 / +9 2 Partial capture
07-29 17:27 20m -12 / - RW3DDZ - / -3 2 Partial capture
07-29 17:24 20m -6 / - BG5JGG - / - 4 Partial capture
07-29 16:54 20m -6 / - SP1ZMO - / +8 4 Partial capture
07-29 16:51 20m +2 / -11 PD1ADA -14 / -2 5 ✓ Full exchange observed
07-29 16:50 20m -2 / - E24WBO - / - 3 Partial capture
07-29 16:46 20m - / - UT3UW -11 / - 2 ✓ Closing fragment
07-29 16:42 20m -10 / - JH0BBA - / -24 2 ✓ Closing fragment
07-27 23:42 20m - / -5 UN7LEW 0 / - 2 ✓ Closing fragment
07-20 23:03 20m - / -18 TA1CCM -18 / - 2 ✓ Closing fragment
07-18 23:29 20m -18 / - 5P6MJ - / - 3 Partial capture
07-18 23:27 20m -12 / - KC3WOX - / - 2 Partial capture
07-18 23:11 20m -2 / - R4SCQ - / - 2 Partial capture
07-18 23:06 20m -14 / -16 SV5BYP -16 / -6 8 ✓ Full exchange observed
07-18 23:03 20m -20 / - N3YPL - / - 2 Partial capture
07-18 20:46 20m -13 / - TA3GO - / - 3 Partial capture
07-18 20:39 20m -16 / - YL3NE - / -14 2 ✓ Closing fragment
07-18 20:36 20m -13 / - SV5BYP - / - 3 Partial capture
07-13 21:53 20m - / -18 9K2YM -2 / - 2 Partial capture
07-13 21:39 20m -24 / -5 SM6KTO -21 / -16 5 ✓ Full exchange observed
07-13 20:34 20m -19 / -21 G0VFB +6 / -7 3 ✓ Full exchange observed
07-13 20:32 20m -22 / - YO8RFS - / -6 2 Partial capture
07-08 22:46 20m - / -21 CT1EEX -14 / - 2 ✓ Closing fragment
07-08 22:32 40m - / - S52D -2 / - 4 Partial capture
07-08 22:26 40m - / - F5PBG -12 / - 2 Partial capture
07-08 22:26 40m - / - PC2J -1 / - 3 Partial capture
07-08 21:48 40m - / -15 MW0USK +2 / - 4 ✓ Closing fragment
07-08 21:31 40m - / -12 UF1A -20 / - 2 Partial capture
07-08 21:18 40m - / -13 OK1ZJK -10 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
172545 -12 2265  BG5JGG YT3VOL KN04 (x2)
172645 -15 2265  CQ YT3VOL KN04
172715 -11 2265  RW3DDZ YT3VOL -03 (x2)
172915 -14 1904  R6YG YT3VOL +09
172930 -12 1903  YT3VOL R6YG R+00
172945 -18 1904  SP9DAT YT3VOL -05 (x2)
173315 -19 1904  SP1ZMO YT3VOL RRR (x6)
40m 
UTC    dB Audio  Message
214845  +2  780  YT3VOL MW0USK -15 (x4)
222300 -11 1531  YT3VOL 9A4ZM -11
222430  +9 2721  YT3VOL IQ4JO JN63
222600  -1  691  YT3VOL PC2J JO22
222600 -10  640  YT3VOL F5PBG IN78
222630  -2  691  YT3VOL PC2J JO22
222630 -13  640  YT3VOL F5PBG IN78
222730  -1  691  YT3VOL PC2J JO22
223200  -4  905  YT3VOL S52D JN76 (x4)

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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