YL3RS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Latvia Most frequent locator attributed to this token: KO17

Receiver-side FT8 activity involving YL3RS, decoded by SO8OO in southeastern Poland. 202 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-10-02.

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 YL3RS 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 (77%), followed by 20 m (15%) and 80 m (7%). Most decodes (64%) fell within the six-hour window 01:00-07:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (69%); the estimated median was -17.5 dB.

Overview

202
Messages attributed
26
UTC dates decoded
55
Active 15-min windows
-17.5 dB
Estimated median S/N

Bands

80m · 15 40m · 156 20m · 31
First attributed message: 2026-06-19
Last attributed message: 2026-10-02 06:35 UTC

Observed FT8 message patterns

Attributed sample
202 messages
Active dates
26 UTC dates
Estimated median S/N
-17.5 dB
Estimated 10th-90th percentile
-22 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 139, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 9.

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 YL3RS 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 YL3RS

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
KO17 · 64 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
845 km (approx.)
Last such locator decoded
2026-10-02 04:46 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 UTCBandYL3RS S/NCounterpartCounterpart S/NMsgsCapture
10-02 06:34 80m -6 / - ES1BH - / - 4 Partial capture
10-02 04:48 80m - / - YL3HI +4 / - 2 Partial capture
10-02 04:47 80m -12 / -11 SP3FXC +20 / +6 5 ✓ Full exchange observed
10-02 04:43 40m - / -13 IW2ODG -6 / - 2 ✓ Closing fragment
09-26 05:39 80m - / - SP2SGZ -5 / - 4 Partial capture
09-26 05:38 80m - / 0 RN2F +2 / - 2 Partial capture
09-26 05:37 80m -22 / - PC2J - / -9 2 Partial capture
09-26 05:33 80m -24 / -2 DO5OT -1 / -1 9 ✓ Full exchange observed
09-26 05:01 80m - / -15 DO1ID +9 / - 3 Partial capture
09-26 05:00 80m -21 / - PA2PF -11 / - 2 ✓ Closing observed
09-26 04:54 80m - / -14 SP5EXA +17 / - 3 ✓ Closing fragment
09-26 04:52 80m - / - PE2JMR -8 / - 3 Partial capture
09-26 04:52 80m - / - SP3QDM +5 / - 8 Partial capture
09-26 04:52 80m - / - SP5EXA +2 / - 2 Partial capture
09-26 04:48 80m - / - PC2J -9 / - 2 Partial capture
09-18 05:29 40m - / - DL3MIB +17 / - 7 Partial capture
09-18 05:07 40m - / - DL3RL +8 / - 2 Partial capture
09-18 05:05 40m - / - DL3IAK -15 / - 3 Partial capture
09-18 05:04 40m - / - UA4FKT +3 / - 2 Partial capture
09-18 05:04 40m - / -8 S58MU +4 / - 2 Partial capture
09-15 06:09 40m -16 / - DL9YNG - / -7 4 Partial capture
09-15 06:06 40m - / -3 EU1EU -13 / - 5 Partial capture
09-15 06:06 40m -19 / - US1MM - / -4 5 ✓ Closing fragment
09-15 06:05 40m - / - RA6OY -4 / - 5 Partial capture
09-15 06:04 40m -18 / - UT2UB - / +2 2 Partial capture
09-15 05:58 40m -16 / - ES6RMR - / -14 2 Partial capture
09-14 10:07 40m - / -1 LA8ENA -18 / - 2 ✓ Closing fragment
09-14 05:43 40m -15 / - VP5/K5UR - / -8 7 Partial capture
09-14 05:38 40m -18 / - II0IHMG - / -5 4 Partial capture
09-14 05:36 40m -15 / - SP6AXW - / - 3 ✓ Closing fragment
09-14 05:27 40m -17 / - HK3G - / -11 3 Partial capture
09-14 05:26 40m -20 / - SP100PKP - / -13 2 Partial capture
09-14 05:24 40m -18 / - OE9DAI - / - 2 Partial capture
09-14 05:23 40m - / -4 9A5MP -18 / - 2 ✓ Closing fragment
09-14 05:13 40m - / -14 DJ4WM -4 / - 3 ✓ Closing fragment
09-14 05:12 40m -20 / -2 LZ2VQ -14 / -9 4 ✓ Full exchange observed
09-14 05:11 40m -20 / - UR4QWW -22 / -17 3 ✓ Closing observed
09-14 05:10 40m -19 / - UR4CU -16 / - 3 ✓ Closing observed
09-14 05:06 40m - / - F4BYA -1 / - 3 Partial capture
09-14 05:05 40m - / - LZ2VQ -6 / - 2 Partial capture
09-02 03:02 40m - / -15 EK1KE -16 / - 14 Partial capture
09-02 02:03 40m - / -15 EK1KE -7 / - 96 Partial capture
08-31 06:46 40m -15 / -20 4O7CC -15 / -23 2 Partial capture
08-31 06:35 20m - / - F4NKF -9 / - 5 Partial capture
08-31 06:18 40m -14 / - SM7JKW - / - 3 Partial capture
08-31 06:16 40m - / - F5MXH -10 / - 2 ✓ Closing fragment
08-31 06:14 40m -21 / - MI0NWA - / -11 4 ✓ Closing fragment
08-31 06:12 40m -19 / - ES7GN - / 0 3 ✓ Closing fragment
08-29 04:49 40m - / -16 PA1PXL +6 / - 2 ✓ Closing fragment
08-28 07:57 40m - / -13 IZ5RKH -5 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
053945  -6  641  YL3RS SP2SGZ JO94 (x3)
044645  -8 1078  CQ YL3RS KO17
044700 +16 1078  YL3RS SP3FXC JO71
044715 -12 1077  SP3FXC YL3RS +06
044730 +18 1078  YL3RS SP3FXC R-11
044745 -11 1078  SP3FXC YL3RS RRR
044800  +3 2494  YL3RS YL3HI KO16
044800 +25 1078  YL3RS SP3FXC 73
044830  +4 2493  YL3RS YL3HI KO16
063400  -5 1038  ES1BH YL3RS +14 (x4)
40m 
UTC    dB Audio  Message
050545 -17  336  YL3RS DL3IAK JN49 (x2)
050645 -24 1679  YL3RS RV6F LN14
050715  +9 1936  YL3RS DL3RL JN59 (x2)
052915 +18  831  YL3RS DL3MIB JN57
052945 -12 2183  YL3RS R1TAX KO58
052945 +18  831  YL3RS DL3MIB JN57 (x6)
044300  -9 1115  YL3RS IW2ODG R-13 (x2)
20m 
UTC    dB Audio  Message
054930  -6 2105  YL3RS II7MGBT -10 (x3)
090130  +2 1676  YL3RS PD3LKN JO22
090130 -13 2563  YL3RS M7TUP IO90
090200  +4 1676  YL3RS PD3LKN R-11 (x2)
101800 +15 1277  YL3RS LZ7VV +23 (x2)
102015 -17 1413  YL3RS AO5FSB -15
063545 -14  279  YL3RS F4NKF JN13 (x5)

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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