F4JTM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,145 messages

Active dates

28 UTC dates

Estimated median S/N

+3 dB

Estimated 10th-90th percentile

-8 to +13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 89, strong (≥ -8 dB) 1,035.

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 F4JTM 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 F4JTM

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

JN39 · 667 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,063 km (approx.)

Last such locator decoded

2026-10-31 00:39 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
002815  +9  407  6W/IK2HKT F4JTM JN39 (x15)

UTC    dB Audio  Message
003945  +1  782  8Q7PR F4JTM JN39 (x2)
195315  -8 1160  9T0MD F4JTM JN39 (x13)

UTC    dB Audio  Message
225015  -2  355  F4JTM DA6SL 73
225030  +2  761  ON1PK F4JTM -13
225045  -8 1778  F4JTM GM6URC +01
225100  +8  761  ON1PK F4JTM RR73
225115  -8 1776  F4JTM GM6URC +01
225115  +1  761  F4JTM DO8JB JO32
225130 +10  761  DO8JB F4JTM +02
225145 -10 1777  F4JTM GM6URC +01
225145  +0  761  F4JTM DO8JB R-03
225200  +5  761  DO8JB F4JTM RR73
225215  -5  761  F4JTM DO8JB 73
225230  +3  761  GM6URC F4JTM R-04 (x2)
225315  -5 1777  F4JTM GM6URC RR73
225330  +1  761  GM6URC F4JTM 73

UTC    dB Audio  Message
203245  -5 2867  F4JTM EI3CTB 73
203315 +15  317  II8IHBC F4JTM JN39 (x2)
203445  +4 2143  PD2MAC/P F4JTM JN39 (x2)
203645  +4  966  JA7TZP F4JTM -21 (x2)
225400 +12  783  XV9B F4JTM JN39 (x8)

UTC    dB Audio  Message
140715  -1  652  1A0KM F4JTM JN39 (x4)

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.