OK1ISO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

163 messages

Active dates

3 UTC dates

Estimated median S/N

+1 dB

Estimated 10th-90th percentile

-9 to +11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 144.

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 OK1ISO 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 OK1ISO

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

JO70 · 134 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

487 km (approx.)

Last such locator decoded

2026-08-16 14:01 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
112115  -2  686  EB3JT OK1ISO -15 (x3)
112645  -2  685  CQ OK1ISO JO70                        a1 (x2)
112945 -13  811  DK4RH OK1ISO RRR
131045 -18 2289  OK1ISO IU5HIU -18 (x2)
135130 -16  841  CQ OK1ISO JO70                        a1 (x2)
135300  -4  841  F1PSX OK1ISO RRR
135945 -14 1030  M3TZX OK1ISO JO70 (x3)
140145  +2  477  SV9/PD9VOG OK1ISO JO70

UTC    dB Audio  Message
150215 -16 1421  OK1ISO R6DV LN04 (x5)
153045  -6 2393  OK1ISO R6DWD -05 (x2)
153115 -20 1992  OK1ISO R6AC LN05 (x2)
091930  -4  821  OK1ISO R6DWD +00
080500  -7  635  OK1ISO SV2CLJ -06 (x2)
080730 -24 1628  OK1ISO LZ4VR KN13
131645 -14 1153  OK1ISO M0BEW +00 (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.