OM3TSA — reception at SO8OO

Observed FT8 message patterns

Attributed sample

310 messages

Active dates

30 UTC dates

Estimated median S/N

0 dB

Estimated 10th-90th percentile

-12 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 251.

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 OM3TSA 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 OM3TSA

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

JN97 · 234 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

340 km (approx.)

Last such locator decoded

2026-10-21 18:31 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
215015  +0 1405  C31KC OM3TSA JN97 (x3)
215930 +10 1177  OY1HJ OM3TSA JN97 (x4)
220315 -10 1077  C31KC OM3TSA JN97 (x4)
183100  +1 1559  OD5ZZ OM3TSA JN97 (x4)

UTC    dB Audio  Message
205145 -13 1357  OJ0JR OM3TSA JN97 (x2)
205230  -2  641  OM3TSA RR73; SM5CBN <...> -14
204800 -14 1589  ER1CW OM3TSA JN97 (x2)
164115  -5 2906  A92AE OM3TSA JN97 (x4)

UTC    dB Audio  Message
204030  -8 2016  VJ6X OM3TSA JN97
204045 -17 2440  OM3TSA VJ6X -12
204100  -8 2016  VJ6X OM3TSA R-13 (x2)
145200  -5  588  OM3TSA Z68PX -06
145215 -24 1700  Z68PX OM3TSA R-05
145230  -4  527  OM3TSA Z68PX RR73
145245 -12 1600  Z68PX OM3TSA 73
145300 -17 1600  OM3TSA OE7LVI JN57
145315 -12 1600  OE7LVI OM3TSA -06
145330 -18 1600  OM3TSA OE7LVI R-04
145345 -11 1600  OE7LVI OM3TSA RR73
145400 -12 1600  OM3TSA OE7LVI 73
204230 -20 1390  OM3TSA EA5HM R-14 (x2)

UTC    dB Audio  Message
204515  -1 1221  OM3TSA 4X1UF -18
204530  +0 1454  4X1UF OM3TSA R-20
204545 -12 1221  OM3TSA 4X1UF RR73
204600  -8 1454  4X1UF OM3TSA 73
204615  +3 2275  OM3TSA SQ9BC -08
204630  -7 1454  SQ9BC OM3TSA R-08
204645  +8 2275  OM3TSA SQ9BC RR73
204700  +0 1454  SQ9BC OM3TSA 73
210245 -15 1454  TF4M OM3TSA JN97 (x2)
173730  -9 1372  ES2AJ OM3TSA JN97 (x2)
173845 +17 2606  OM3TSA SP3BPU JO82 (x3)

UTC    dB Audio  Message
130245  -7 1140  OM3TSA LZ1ZF +03
090015  -4 1873  OJ0YL OM3TSA JN97 (x7)

UTC    dB Audio  Message
152300 -21 1595  OM3TSA SV5BYP +09 (x2)

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.