UT3SO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

465 messages

Active dates

15 UTC dates

Estimated median S/N

+8 dB

Estimated 10th-90th percentile

-12 to +16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 50, strong (≥ -8 dB) 389.

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 UT3SO 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 UT3SO

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

KN18 · 299 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

182 km (approx.)

Last such locator decoded

2026-10-23 15:59 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
152830 -13  847  UT3SO PD3FCA JO22
152945  -6 1547  CQ UT3SO KN18 (x2)
153030 -12 1287  UT3SO OE3RHI JN87
153030  -5 1547  UT3SO DH0BRO JO62 (x2)
153130 -14 1287  UT3SO OE3RHI JN87
153130  -7 1547  UT3SO DH0BRO JO62
153200  -4 1287  UT3SO OE3RHI JN87
153200  -5 1547  UT3SO DH0BRO JO62 (x3)
153500 -14 1517  UT3SO SM6VAG JO78 (x2)
160230 -16 1320  UT3SO UG0B NO45

UTC    dB Audio  Message
155215  +5 1257  CQ UT3SO KN18 (x3)
155430  +6 1257  SP0YAGI UT3SO KN18
155515  +5 1258  CQ UT3SO KN18                         a1 (x3)
155630  -5 1395  UT3SO SP9WAZ JO90
155645  +7 1258  CQ UT3SO KN18
155700  -4 1395  UT3SO SP9WAZ JO90
155730  +6 1258  SP0YAGI UT3SO KN18
155800  +5 1258  OH3BYZ UT3SO KN18
155830 +14 1258  CQ UT3SO KN18 (x3)

UTC    dB Audio  Message
111830 -21 1742  UT3SO RN6MA -17 (x2)
112330 -15 1924  UT3SO ON5GQ +00 (x2)
112830 -18 1355  UT3SO RN6MA -11 (x2)
113000  -6 1663  UT3SO IW3BS JN55
105415  +5 2693  UT3SO DF6QN JO41
115530  -9 1823  UT3SO F6JON/QRP -21
121615  -8  585  UT3SO F4LNM JN09 (x5)
151615 -11  794  UT3SO EA7Y IM66

UTC    dB Audio  Message
081730  -9 2066  UT3SO RZ4FWA LO23
081730  +3 1352  UT3SO RN6MA -06
081730 +12 2912  UT3SO F4BYA JN19
081830  +4 1352  UT3SO RN6MA -06
081830 +10 2912  UT3SO F4BYA JN19 (x3)
082415  -4  907  UT3SO TC30AUG -06
082645  -9 1385  UT3SO F5PZQ JN19
082715  +8  814  UT3SO RN6MA +13
082715  -9 1534  UT3SO G7TQB JO00
082715  -9 1385  UT3SO F5PZQ JN19
082745  +7  814  UT3SO RN6MA +13
082745 -10 1386  UT3SO F5PZQ JN19
082815  +5  815  UT3SO RN6MA +13

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.