F4JMV — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

208 messages

Active dates

18 UTC dates

Estimated median S/N

-11.5 dB

Estimated 10th-90th percentile

-17 to -6 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 130, strong (≥ -8 dB) 46.

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 F4JMV 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 F4JMV

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

IN98 · 177 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,657 km (approx.)

Last such locator decoded

2026-08-06 17:13 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
164930  -3  723  F4JMV EG1UME -15
165200 -15 1216  F4JMV RR73; PD8RB <...> -04
165600  -9  771  F4JMV DL1YS RR73
165815  -7  450  CQ F4JMV IN98 (x2)
170315 -17 1174  OH2IPA F4JMV IN98
170415 -16 1174  CQ F4JMV IN98 (x4)
170945 -12  990  A41ZZ F4JMV R-11 (x2)
171115 -15  990  CQ F4JMV IN98
171145 -11  647  SK2AT F4JMV IN98
171345  -7  652  CQ F4JMV IN98

UTC    dB Audio  Message
132230  -6 1333  F4JMV DB4UW -03 (x4)
133200  -9  673  F4JMV CR7BRV -12 (x2)
125545 -11  533  F4JMV OZ1DYI -21
125700 -18 1120  F4JMV OZ1PDE RR73
130130 -18 1249  F4JMV II0WWA -10
130830  +5 1232  F4JMV DN9BT JO40 (x4)
142800 -15  582  F4JMV UA3ZUX KO90
143630  -3 2570  F4JMV PD0HLA -05

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.