SV3SIM — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

89 messages

Active dates

7 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-14 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 63.

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 SV3SIM 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 SV3SIM

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

KM17 · 47 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,386 km (approx.)

Last such locator decoded

2026-09-17 17:56 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
175430 -14  265  LB5AK SV3SIM RR73
175445 -12  267  SV3SIM LB5AK 73
175500 -11  265  LB5AK SV3SIM 73
175545  -2  264  SV3SIM F1IQH JN27
175600 -13  265  CQ SV3SIM KM17
175615  -3  264  SV3SIM F1IQH JN27
175630 -11  265  CQ SV3SIM KM17
175645  +2  678  SV3SIM SP2SGZ JO94
175645  -2  264  SV3SIM F1IQH JN27
175745  -1  678  SV3SIM SP2SGZ JO94
175815 -11 1756  SV3SIM R4PFY -19 (x2)
175945  -4 2184  SV3SIM R3BDQ -14 (x2)
165245 -12 1587  SV3SIM ON1DGN -11

UTC    dB Audio  Message
205615  -4 1433  SV3SIM SQ7TX KO01
205645 -14 2495  SV3SIM SV1EKI KM18 (x7)
210015 -20 1484  SV3SIM SV9MBH KM25
210015  -9 2495  SV3SIM SV1EKI KM18
210030 -14 1435  CQ SV3SIM KM17
210045 -13 2495  SV3SIM SV1EKI KM18 (x3)
210315 -13 1435  SV3SIM IK1NPP JN34

UTC    dB Audio  Message
193415  +2  464  SV3SIM IK4LZH JN54 (x2)
193530 -20 1067  CQ SV3SIM KM17                        a1
193545  -2  464  SV3SIM IK4LZH JN54
195115 -20 1871  SV3SIM IZ5MMK JN54 (x2)
192045 -17 1255  SV3SIM PD4RJ JO33
192045  -4  403  SV3SIM DL2DBI JO31
192145 -13 2593  SV3SIM RD3FY 73
192145 -10  403  SV3SIM OE6TNO JN77 (x3)
181900 -14  903  CQ SV3SIM KM17
182015  -9 2078  SV3SIM PI4TX JO22 (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.