US1VM — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,100 messages

Active dates

48 UTC dates

Estimated median S/N

-0.6 dB

Estimated 10th-90th percentile

-15 to +13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 200, strong (≥ -8 dB) 808.

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 US1VM 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 US1VM

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

KN68 · 427 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

829 km (approx.)

Last such locator decoded

2026-09-24 17:45 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
025415  -5 2905  N5LPT US1VM -10 (x4)
025830  -3 2902  YY5EHT US1VM -12
031900  +3 2893  UN7ECA US1VM -04 (x4)
032530  -1 2893  UN7LAN US1VM +00 (x3)
033045  -5 2892  KE4EB US1VM -12 (x2)
041015  -4 2892  N8FMD US1VM -12

UTC    dB Audio  Message
174430  -9 1062  US1VM SQ2NUH -07 (x2)
174515 +14 2871  SQ2NUH US1VM 73
174545  +8 2871  CQ US1VM KN68
174600 +13 2871  US1VM LY2EW KO25 (x2)
174730  +1 2871  SQ100PKP US1VM -13 (x2)
174845  +8 2871  US1VM UA4FKT LO23 (x2)
174930 +13 2871  ON8BZ US1VM -08 (x3)
030345  +9 2880  Z62NS US1VM +03 (x2)

UTC    dB Audio  Message
040945 -11 1831  US1VM HK3YL RR73
041545 -12 1301  US1VM UA9YHA NO01
042215  -3 2345  US1VM XQ1KK -18 (x6)
044215  -4 2593  HL5XL US1VM -11 (x2)
044430  -8 2593  LU6HOG US1VM -14 (x5)

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.