UN8DSW — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

6,878 messages

Active dates

72 UTC dates

Estimated median S/N

-14.9 dB

Estimated 10th-90th percentile

-22 to -5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3,086, moderate (-15 to -9 dB) 2,391, strong (≥ -8 dB) 1,401.

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 UN8DSW 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 UN8DSW

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

NO00 · 5,189 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

4,098 km (approx.)

Last such locator decoded

2026-09-19 19:01 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
170830 -14 2369  UN8DSW RW4LMR RR73
183500  -5 2116  UN8DSW R6CW -16
183800  +9 1033  UN8DSW OH4MDY RR73
190700 +10  790  UN8DSW RA3GZ -14 (x2)
171015  +9  809  UN8DSW YL3AQI KO16
173815  -8  215  UN8DSW RA6OY R-22 (x6)
175245  -9 1735  UN8DSW TA3D KM39 (x3)

UTC    dB Audio  Message
192345  -1 1000  UN8DSW OH2FNR KP20 (x4)
163415  +1 2343  UN8DSW RQ7O KN98 (x2)
163945 -14 2190  UN8DSW YO2MAX KN15 (x4)
164515 -21  699  UN8DSW SQ4NR KO03 (x2)
164830  +7 2563  UN8DSW RA6SA KN76 (x2)
165300 -15 2508  UN8DSW R9CS MO06

UTC    dB Audio  Message
182930 +10 2691  UN8DSW DL1RNW -18 (x3)
170400  -3 1745  UN8DSW LA9GX JO59 (x3)
170600  -2  642  UN8DSW UR5VLC KN68
170600 -18 2249  UN8DSW ON6AA JO11
170630  -3  640  UN8DSW UR5VLC KN68
170630 -17 2249  UN8DSW ON6AA JO11
170745  -1 2028  UN8DSW ER3ZW -09 (x2)
170845  -9 1206  UN8DSW DL7UKM JO62 (x2)
173330  -6 1497  UN8DSW OH3MB KP20

UTC    dB Audio  Message
183245  +8 2320  UN8DSW IZ5IMD RR73
183745  -2 1477  UN8DSW RX3RZ RR73
184300 -20 2325  CQ UN8DSW NO00
184445 +12  774  UN8DSW OK1FED JO70 (x3)
184845 -12 2139  UN8DSW M7HNI IO92
155800 -18 1303  UN8DSW R70SAB -19 (x2)
160845  -6  850  UN8DSW SY1BKQ KM18 (x5)
144400  -7 2672  UN8DSW PA3BHW JO32

UTC    dB Audio  Message
114015  +5 2250  UN8DSW DL2JPN JO60 (x3)
114300 -18 2250  CQ UN8DSW NO00 (x5)
115815  -7 2320  UN8DSW M8MQF JO00 (x2)
120615 +15 2185  UN8DSW ON7HM JO10 (x2)
121300 -20 2250  CQ UN8DSW NO00 (x3)

UTC    dB Audio  Message
131815  -9 2298  UN8DSW RV6AVU KN94 (x3)
194230 -16 2397  UN8DSW PD0RCQ 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.