YL3GAO — 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: KO16

Receiver-side FT8 activity involving YL3GAO, decoded by SO8OO in southeastern Poland. 1,640 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.

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 1,640 FT8 messages attributed to YL3GAO as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 20 m (9%) and 10 m (4%). Most decodes (53%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5 dB.

Overview

1,640
Messages attributed
75
UTC dates decoded
303
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-23 14:49 UTC

Observed FT8 message patterns

Attributed sample
1,640 messages
Active dates
75 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-15.7 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 165, moderate (-15 to -9 dB) 391, strong (≥ -8 dB) 1,084.

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 YL3GAO

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
KO16 · 795 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
734 km (approx.)
Last such locator decoded
2026-10-23 14:49 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 UTCBandYL3GAO S/NCounterpartCounterpart S/NMsgsCapture
10-23 14:48 40m -4 / - EA1AA - / - 2 Partial capture
10-23 04:18 40m - / +2 SV8DCY -14 / - 2 ✓ Closing fragment
10-22 16:49 40m - / +8 YT1VDA -5 / - 2 ✓ Closing fragment
10-22 16:45 40m - / -1 IK2TCV -10 / - 2 ✓ Closing fragment
10-22 16:33 40m - / - R6DVV -11 / - 2 Partial capture
10-22 15:25 40m -3 / - PA0WDN - / - 2 Partial capture
10-22 04:53 40m - / -6 TA2VUZ -18 / - 2 ✓ Closing fragment
10-21 12:41 40m -5 / - YL3ASK - / -6 3 ✓ Closing fragment
10-21 04:48 80m - / - SP2DW -6 / - 2 ✓ Closing fragment
10-21 04:46 80m -6 / 0 OH5KNL +4 / -6 5 ✓ Full exchange observed
10-21 04:40 80m -11 / -2 SP4MSY +12 / -4 5 ✓ Full exchange observed
10-20 08:33 40m -2 / - PD1ACS - / - 2 Partial capture
10-19 08:05 40m 0 / +10 SP9IML -14 / - 5 ✓ Full exchange observed
10-19 08:03 40m +2 / - M7IPY - / -3 3 ✓ Closing fragment
10-19 07:48 40m -4 / - IZ2QPP - / - 2 Partial capture
10-19 07:47 40m -4 / -8 OE3KJO -2 / -4 5 ✓ Full exchange observed
10-19 07:44 40m -2 / - E75W - / -2 6 ✓ Closing fragment
10-19 07:42 40m - / - DL3NAA -4 / - 2 Partial capture
10-19 07:41 40m +7 / - SP5MXZ +2 / - 5 ✓ Full exchange observed
10-18 06:56 40m -2 / - IQ4FE - / - 10 Partial capture
10-16 11:35 40m +1 / - SM2A - / -2 3 ✓ Closing fragment
10-16 11:31 40m +2 / - HB9SWR/P - / -5 2 ✓ Closing fragment
10-16 05:31 40m -1 / -16 DL1DY -10 / -8 12 ✓ Full exchange observed
10-16 05:28 40m +2 / -2 PI4DX +3 / - 5 ✓ Full exchange observed
10-14 13:05 40m -1 / - DL9AHB/QRP - / +1 3 Partial capture
10-14 13:03 40m -4 / - EO210WLP - / - 2 Partial capture
10-14 13:01 40m -5 / -3 SP5XZM -10 / - 5 ✓ Full exchange observed
10-14 12:59 40m +3 / - ES6DO - / - 3 Partial capture
10-14 12:57 40m -4 / - RD3TOK - / +10 2 ✓ Closing fragment
10-14 12:55 40m -8 / -9 YO3JW -3 / +1 5 ✓ Full exchange observed
10-14 12:54 40m -5 / - OZ9WRH - / - 3 ✓ Closing fragment
10-13 05:45 40m 0 / - EA5HM - / -1 3 ✓ Closing fragment
10-13 05:44 40m - / - LZ1ZF -4 / - 2 Partial capture
10-13 05:43 40m -2 / - F1IQH - / -12 2 ✓ Closing fragment
10-13 05:38 40m -1 / -10 9A9TT +2 / +9 6 ✓ Full exchange observed
10-12 03:45 40m - / -6 EA3IAZ -7 / - 2 ✓ Closing fragment
10-12 03:34 40m - / -13 EC3A +9 / - 2 ✓ Closing fragment
10-11 14:49 40m -9 / -3 IQ3ABC -4 / - 7 Partial capture
10-11 12:51 40m -2 / - SQ6EMJ - / -4 5 ✓ Closing fragment
10-11 12:47 40m -5 / - SM7USW - / -4 6 ✓ Closing fragment
10-11 12:43 40m -4 / -1 OE1TKS 0 / +6 5 ✓ Full exchange observed
10-11 12:43 40m -5 / +2 SN0EG -9 / +6 6 ✓ Full exchange observed
10-11 12:42 40m -4 / - SP5ETF - / -7 2 ✓ Closing fragment
10-11 12:40 40m -11 / +7 SQ9ZAY -6 / -3 8 ✓ Full exchange observed
10-11 10:15 40m -6 / - SP4OIU - / +4 3 ✓ Closing fragment
10-11 06:19 40m -5 / - RA1QCX - / +5 2 Partial capture
10-11 06:18 40m -16 / - DL5LB - / +7 2 ✓ Closing fragment
10-11 06:13 40m - / - YO3GNF -6 / - 2 Partial capture
10-11 06:11 40m -9 / +1 PD0PMF -6 / -11 5 ✓ Full exchange observed
10-10 15:19 40m -5 / -10 OM3CPV -17 / 0 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
124200  -5 1310  YL3ASK YL3GAO 73
045315 -16 1492  YL3GAO TA2VUZ -06 (x2)
152515  +1 1540  PA0WDN YL3GAO KO16 (x2)
163345 -10 2209  YL3GAO R6DVV KN95 (x2)
164530  -9 2103  YL3GAO IK2TCV -01 (x2)
164915  -9 1363  YL3GAO YT1VDA +08 (x2)
041830 -13 2344  YL3GAO SV8DCY +02 (x2)
144845  -5 1745  EA1AA YL3GAO KO16 (x2)
80m
UTC    dB Audio  Message
161830  -2 2305  YL2QV YL3GAO KO16
161845  -1 2305  YL3GAO YL2QV +04 (x2)
044030 -13  804  SP4MSY YL3GAO KO16
044045 +12  804  YL3GAO SP4MSY -02
044100 -11  805  SP4MSY YL3GAO R-04
044115 +13  804  YL3GAO SP4MSY RR73
044130  -8  804  SP4MSY YL3GAO 73
044600  +6 2054  YL3GAO OH5KNL +00
044615  -6 2054  OH5KNL YL3GAO R-06
044630  +2 2054  YL3GAO OH5KNL RR73
044645  -7 2054  OH5KNL YL3GAO 73
044700  +3 2054  YL3GAO OH5KNL 73
044830  -4 1707  YL3GAO SP2DW RR73 (x2)
20m
UTC    dB Audio  Message
170815  -8 2103  EP2AES YL3GAO KO16 (x2)
090730 -10 2006  PA0MUS YL3GAO KO16
090745  +3 2006  YL3GAO PA0MUS +00 (x2)
091100 -11  930  YL3GAO OE9NET RR73
141515 -15 2105  II7MGBT YL3GAO KO16 (x2)
141915  -2 2106  EP2AES YL3GAO KO16 (x2)
142215  +1  825  II7MGXX YL3GAO KO16
142230  +0  826  YL3GAO II7MGXX -10
142445  -6  836  CT2JTN YL3GAO -01 (x2)
143415  -5 2120  BX4AP YL3GAO KO16
10m
UTC    dB Audio  Message
153645 +10  942  YL3GAO IU2IKT 73
153730  +5  460  YL3GAO F5NAA -02 (x2)
154000 -13  774  YL3GAO TM6KJS RR73
080945 -20 2237  YL3GAO F4IDN IN97
081445 -11 2381  YL3GAO ON5RZ JO21 (x3)
082330  +7 2504  YL3GAO F4DUZ R+05 (x2)
103330  -6  932  YL3GAO DN9JGL -05 (x2)
104115  -9 2124  YL3GAO DO9PV -12 (x2)
104830 -20 2122  YL3GAO II7MGBT -11

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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