UB8QCA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

17 messages

Active dates

4 UTC dates

Estimated median S/N

-13 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 6.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with UB8QCA 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 UB8QCA

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

MO25 · 6 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,925 km (approx.)

Last such locator decoded

2026-09-14 17:32 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
170730  -1 1715  UB8QCA EX7CQ RR73
170800 +15 2768  UB8QCA R6FFB LN14 (x3)
171415  -8  555  9A4AA UB8QCA MO25
171615  -7 2616  R4CHN UB8QCA MO25
171700  -7 2637  UB8QCA R4CHN -06
171800  -9 1777  UB8QCA UB2FEK KO04 (x2)
171915  -7 2615  R4CHN UB8QCA R-10 (x3)
172745 -12 2567  UA3LRN UB8QCA 73
172900 -11 1047  UB8QCA ON4CJU -23
173215 -17  553  RN3RHQ UB8QCA MO25

UTC    dB Audio  Message
184630  -9 1140  UB8QCA F1ODM -15 (x5)
185230 -16 2332  UB8QCA JA0LFV -08 (x3)
172045  -2 1010  UB8QCA RA6FC LN13 (x7)

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.