F4HTO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

178 messages

Active dates

6 UTC dates

Estimated median S/N

+2 dB

Estimated 10th-90th percentile

-9 to +8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 159.

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 F4HTO 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 F4HTO

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

JO10 · 81 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,335 km (approx.)

Last such locator decoded

2026-10-16 23:10 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
230315  -4 1204  N4PRB F4HTO JO10 (x4)
230515  +3 1423  NP4PR F4HTO JO10 (x6)
230830  +2 1065  K3SLH F4HTO JO10 (x3)
231000  -1 2095  WY0V F4HTO JO10
231030  -1 1066  K3SLH F4HTO JO10

UTC    dB Audio  Message
211000  -9 1658  F4HTO YO9IE -11
211000 -12  677  F4HTO GX3RAF/P 73
211000  -6  470  F4HTO DL9DBF JO40
211015  -2 2541  YO9IE F4HTO R-01
211030 -14 1659  F4HTO YO9IE RR73
211030  -8  470  F4HTO DL9DBF JO40
211045  -2 2540  YO9IE F4HTO 73
211100 -10  470  F4HTO DL9DBF JO40
211130  -2 2541  F4HTO IZ0MIT JN61
211145  -3 2540  IZ0MIT F4HTO +14
211200  +0 2541  F4HTO IZ0MIT R+00 (x2)
211245  -7 2540  CQ F4HTO JO10                         a1
211315  -1 2540  LB9RE F4HTO +08 (x2)

UTC    dB Audio  Message
210030  +1 2712  F4HTO W1AW/1 +06
210215 -11 2392  N1NRA F4HTO R-14 (x2)
210330  -8 2393  F4HTO LZ2VQ -04
210400  +5 2712  F4HTO W1AW/1 +10
210415  -4 2392  N1NRA F4HTO R-02
210830  -8 2391  K0BFG F4HTO JO10 (x3)
210945  -4 2391  F4HTO LZ2VQ -06
211100  -5 2392  KD2YCK F4HTO JO10 (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.