YL3QZ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Latvia Most frequent locator attributed to this token: KO27

Receiver-side FT8 activity involving YL3QZ, decoded by SO8OO in southeastern Poland. 243 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-10-11.

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 243 FT8 messages attributed to YL3QZ as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (86%), followed by 40 m (8%) and 10 m (6%). Most decodes (56%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (98%); the estimated median was -22 dB.

Overview

243
Messages attributed
10
UTC dates decoded
67
Active 15-min windows
-22 dB
Estimated median S/N

Bands

First attributed message: 2026-06-24
Last attributed message: 2026-10-11 20:05 UTC

Observed FT8 message patterns

Attributed sample
243 messages
Active dates
10 UTC dates
Estimated median S/N
-22 dB
Estimated 10th-90th percentile
-24 to -18 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 237, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 1.

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 YL3QZ

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
KO27 · 204 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
867 km (approx.)
Last such locator decoded
2026-10-11 20:05 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 UTCBandYL3QZ S/NCounterpartCounterpart S/NMsgsCapture
10-11 22:33 40m - / - SV5BYP -7 / - 4 Partial capture
10-11 22:28 40m - / - SV5BYP -13 / - 4 Partial capture
10-11 22:22 40m - / - SV5BYP -12 / - 4 Partial capture
10-11 20:42 40m - / - EB5AFK -2 / - 2 Partial capture
10-11 20:41 40m - / - RD3FY -12 / - 2 Partial capture
10-11 20:41 40m - / - EA3HMM +9 / - 4 Partial capture
10-11 20:31 40m - / - M0IEP -10 / - 3 Partial capture
10-11 20:12 40m - / - G7RCQ -14 / - 3 Partial capture
10-11 20:04 40m - / - F4MTT -14 / - 2 Partial capture
10-11 20:04 40m -19 / - M8KUU - / - 2 Partial capture
10-11 20:03 40m - / - M0IEP -13 / - 2 Partial capture
10-11 19:57 40m -19 / -17 AO5CV +1 / -13 6 ✓ Full exchange observed
10-11 19:55 40m -17 / - LZ9DX -19 / - 2 ✓ Closing observed
10-11 19:44 40m -23 / -2 IK2JYT -4 / +3 3 Partial capture
10-10 18:25 40m - / -13 ON8WR -15 / - 3 ✓ Closing fragment
10-10 18:19 40m - / -19 F6CCS -4 / - 2 ✓ Closing fragment
10-10 18:15 40m - / -8 IU3VHR +4 / - 2 ✓ Closing fragment
10-10 17:58 40m - / -12 IN3IBW +4 / - 2 Partial capture
10-10 17:50 40m - / - DL2MED -9 / - 3 Partial capture
10-10 17:28 40m - / +3 UR5FLN -5 / - 3 ✓ Closing fragment
10-10 17:22 40m - / -1 UR5FLN -2 / - 4 ✓ Closing fragment
10-05 21:12 40m - / -7 ON5UN +11 / - 2 ✓ Closing fragment
10-05 21:10 40m - / -21 II5GG +6 / - 2 ✓ Closing fragment
10-05 20:59 40m - / -24 F4JTP -4 / - 2 Partial capture
10-05 20:17 40m - / -23 DL2EMS -15 / - 3 ✓ Closing fragment
10-02 22:40 40m - / -16 EA4HPY +10 / - 2 ✓ Closing fragment
10-02 22:05 40m - / - RZ4FWA -11 / - 3 Partial capture
10-02 21:51 40m - / -17 PD2ET -6 / - 3 ✓ Closing fragment
10-02 21:41 40m - / - DK2BJ +2 / - 2 Partial capture
10-02 21:36 40m - / -9 DC7LR -18 / - 2 ✓ Closing fragment
10-02 21:08 40m - / -25 HB9ELE +5 / - 3 Partial capture
10-02 20:55 40m - / -2 PD0DEX +1 / - 2 ✓ Closing fragment
08-30 15:47 20m - / - OR1A -15 / - 3 Partial capture
08-30 14:59 20m - / -18 M9DJN -5 / - 8 Partial capture
08-30 14:45 20m - / -10 M7KBF +3 / - 2 ✓ Closing fragment
08-30 14:37 20m - / - PD1RMB -10 / - 2 Partial capture
08-30 14:36 20m - / -3 RK4PR -12 / - 3 ✓ Closing fragment
08-30 14:19 20m -17 / - DH8KAM - / - 2 Partial capture
08-30 14:15 20m -18 / -14 EA2AA -4 / -17 5 ✓ Full exchange observed
08-30 14:13 20m - / -3 F4BQS -1 / - 2 ✓ Closing fragment
08-30 13:55 20m - / -5 PA0WDN -21 / - 2 Partial capture
08-30 13:25 20m - / 0 ON3RDH -9 / - 3 Partial capture
08-30 13:18 20m - / - TA6U -2 / - 2 Partial capture
08-30 13:14 20m - / -10 DL9CHR 0 / - 2 ✓ Closing fragment
08-30 13:10 20m - / -13 M7JHI -2 / - 4 Partial capture
08-30 13:10 20m - / - R6OV -1 / - 2 Partial capture
08-30 12:49 20m - / -11 ON7CP -6 / - 6 ✓ Closing fragment
08-30 12:36 20m - / - UX0ZAB +4 / - 2 Partial capture
08-30 12:34 20m - / -4 ON9TB -6 / - 2 ✓ Closing fragment
08-30 12:25 20m - / -10 PD3RFR -6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
204215  -2 1874  YL3QZ EB5AFK IM98
204230  +6  281  YL3QZ EA3HMM JN00
204245  -1 1874  YL3QZ EB5AFK IM98
222245 -13  796  YL3QZ SV5BYP KM46 (x12)
20m
UTC    dB Audio  Message
144145 -19 1812  CQ YL3QZ KO27
144345 -20 1812  RI1FJL YL3QZ KO27
144500  +4 1282  YL3QZ M7KBF -10 (x2)
145930  -8  810  YL3QZ M9DJN -18 (x8)
154715 -17 1812  YL3QZ OR1A JO21 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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