YL3ATH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Latvia Most frequent locator attributed to this token: KO26

Receiver-side FT8 activity involving YL3ATH, decoded by SO8OO in southeastern Poland. 1,379 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-16.

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 1,379 FT8 messages attributed to YL3ATH as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 80 m (23%) and 10 m (8%). Most decodes (82%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -2 dB.

Overview

1,379
Messages attributed
26
UTC dates decoded
123
Active 15-min windows
-2 dB
Estimated median S/N

Bands

80m · 321 40m · 949 10m · 109
First attributed message: 2026-06-07
Last attributed message: 2026-09-16 18:27 UTC

Observed FT8 message patterns

Attributed sample
1,379 messages
Active dates
26 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-13.1 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 64, moderate (-15 to -9 dB) 306, strong (≥ -8 dB) 1,009.

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 YL3ATH 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 YL3ATH

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
KO26 · 678 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
760 km (approx.)
Last such locator decoded
2026-09-16 18:27 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 UTCBandYL3ATH S/NCounterpartCounterpart S/NMsgsCapture
09-16 18:26 80m -4 / - E77TT - / - 2 Partial capture
07-12 18:40 40m -16 / - <...> - / +10 4 Partial capture
07-12 17:19 10m - / - UR9QQ -1 / - 2 Partial capture
07-11 20:43 40m -5 / - MM0JTV - / - 3 Partial capture
07-11 20:42 40m -8 / - MW9LQA - / - 2 Partial capture
07-11 20:41 40m -11 / - EA3CCI -17 / -2 3 ✓ Closing observed
07-11 20:38 40m -4 / - TJ1GD/P - / -10 3 Partial capture
07-11 20:37 40m -4 / - TA1BX - / +9 2 ✓ Closing fragment
07-11 20:33 40m -10 / +4 IV3DSG -10 / +7 4 ✓ Full exchange observed
07-11 20:28 40m -10 / - MM0JTV - / - 2 Partial capture
07-11 20:26 40m -10 / - MW3LSD - / -15 3 ✓ Closing fragment
07-11 20:25 40m -10 / - M0ELS - / -12 2 ✓ Closing fragment
07-11 20:23 40m -4 / - YT2FA -19 / -2 4 ✓ Closing observed
07-11 20:21 40m -3 / - G7RZA - / - 3 Partial capture
07-11 20:18 40m -6 / - TJ1GD/P - / - 4 Partial capture
07-11 20:17 40m -6 / - BA4II - / -19 2 Partial capture
07-11 20:16 40m -11 / - A61DD - / -2 3 ✓ Closing fragment
07-11 20:06 40m -2 / - ZB2MD - / - 4 Partial capture
07-11 20:05 40m -2 / - VK4DAD - / -21 2 ✓ Closing fragment
07-11 20:03 40m -12 / - SP5DAA - / -14 2 ✓ Closing fragment
07-11 20:01 40m -12 / -14 G1NYN -16 / +1 4 ✓ Full exchange observed
07-11 19:58 40m -11 / - VK4DAD - / - 3 Partial capture
07-11 19:55 40m -11 / -11 G8OO -12 / -6 7 ✓ Full exchange observed
07-11 19:54 40m -13 / - SN100LKK - / -13 2 Partial capture
07-11 19:52 40m -16 / - SP5ROM - / -1 3 Partial capture
07-11 19:45 80m +8 / - E70SZ - / -12 6 Partial capture
07-11 19:44 80m +12 / -8 IN3WZS +2 / -7 4 Partial capture
07-11 19:40 80m +6 / - SP7ROM - / - 2 Partial capture
07-11 19:39 80m +8 / - JG3TRB - / -20 5 Partial capture
07-11 19:37 80m +12 / - SQ8MXC - / - 2 Partial capture
07-11 19:34 80m +12 / +8 SQ8CTR +15 / +9 7 ✓ Full exchange observed
07-11 19:31 80m +13 / -4 UR4LG -5 / -5 7 ✓ Full exchange observed
07-11 19:28 80m +11 / +3 SP9DGO +5 / +6 6 ✓ Full exchange observed
07-11 19:27 80m +9 / - UA3SCU -1 / +6 2 ✓ Closing observed
07-11 19:25 80m +6 / 0 OH4KRN -18 / -1 3 ✓ Full exchange observed
07-11 19:25 80m +8 / - VK6WX - / -20 3 ✓ Closing fragment
07-11 19:23 80m +6 / +6 SP8RPA +14 / -1 5 ✓ Full exchange observed
07-11 19:22 80m 0 / -2 SQ8AZT +16 / - 5 ✓ Full exchange observed
07-11 18:57 40m -2 / +9 SV1BLD -10 / +7 5 Partial capture
07-11 18:55 40m -5 / - SP2NBH - / - 3 Partial capture
07-11 18:54 40m -5 / +2 DF8RU +12 / - 4 ✓ Full exchange observed
07-11 18:52 40m -8 / -1 PD0MNO -24 / - 3 ✓ Closing observed
07-11 18:50 40m -8 / - G3EFG - / -8 3 ✓ Closing fragment
07-11 18:47 40m -9 / - YH2BC - / - 3 Partial capture
07-11 18:45 40m -6 / - <...> - / - 3 Partial capture
07-11 18:43 40m -6 / - SM7RHI -4 / - 5 ✓ Full exchange observed
07-11 18:42 40m -4 / - LA2VLA - / - 2 Partial capture
07-11 18:40 40m -5 / - BG9IVV - / - 4 Partial capture
07-11 18:34 40m -9 / - DU7OK - / -17 5 ✓ Closing fragment
07-11 18:32 40m -11 / - OH8NW - / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
194215 +11  677  JG3TRB YL3ATH -20
194400 +14  678  IN3WZS YL3ATH KO26
194415  +2  428  YL3ATH IN3WZS -08
194430 +11  677  IN3WZS YL3ATH R-07
194445  +3  428  YL3ATH IN3WZS RRR
194530  +7  677  E70SZ YL3ATH KO26 (x3)
194645  +1 2698  YL3ATH OO26TRUDO -08
194700  +8  677  E70SZ YL3ATH R-12 (x3)
182600  +6 1037  DA6MS YL3ATH KO26
182645  -6 1037  E77TT YL3ATH KO26 (x2)
40m 
UTC    dB Audio  Message
203945  -3 2477  TJ1GD/P YL3ATH R-10
204100 -17 1740  YL3ATH EA3CCI JN11
204115  -8 2477  EA3CCI YL3ATH -02 (x2)
204215 -10 2477  MW9LQA YL3ATH KO26 (x2)
204315  -5 2477  MM0JTV YL3ATH KO26 (x3)
103415 -15  904  MI0AIH YL3ATH R-14
184045 -20 2117  <...> YL3ATH KO26 (x3)
184230  -5  796  YL3ATH 3Z100LKK +19
184245 -16 2052  <...> YL3ATH R+10
10m 
UTC    dB Audio  Message
085330  -4 2319  YL3ATH RR73; RJ6L <...> -12
092745  -9 1301  YL3ATH F5ADE -01
093315 -14  846  YL3ATH PE9JAN JO22 (x6)
180115 -12 2626  YL3ATH HB9EFK RR73
171900  -2  739  YL3ATH UR9QQ KN77 (x2)
172400 -15 2288  YL3ATH DL3AMW -06
173445 -17 1804  YL3ATH PA5TON +00
175730 -17 2144  YL3ATH DM1FL RR73
180330 -17 2334  OZ5ABO YL3ATH KO26

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.

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