YO9IAB — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

4,395 messages

Active dates

93 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-14 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 320, moderate (-15 to -9 dB) 926, strong (≥ -8 dB) 3,149.

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 YO9IAB 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 YO9IAB

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

KN25 · 3,178 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

549 km (approx.)

Last such locator decoded

2026-09-20 03:54 UTC

Other locator fields attributed to this token: KN35 (2).

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
043715  -6 1376  WV5A YO9IAB KN25 (x2)
034215  -3  752  YO9IAB R4ML LO44 (x2)
033600 -23 2181  CQ YO9IAB KN25                        a1
033715  -6 2183  YO9IAB R4FDD -05
033745 -20 2184  YO9IAB UA9SY LO63
034100 -22 2181  K4NWX YO9IAB -14
034315  -2 2181  YO9IAB UA6LTA KN97 (x2)
034545 -12 1551  YO9IAB DH1HF R-05
035430 -19 2587  HK3VHZ YO9IAB KN25
035445 -24 1640  YO9IAB HK3VHZ -14 (x2)
035845 -15 2588  YO9IAB HJ4MMO -12

UTC    dB Audio  Message
034215 +15 2414  KB3HGW YO9IAB R-15 (x2)
034500 +10 2414  K2TNO YO9IAB KN25 (x13)

UTC    dB Audio  Message
032030  +4 2580  YO9IAB HF5A JO92

UTC    dB Audio  Message
064130 +13 2856  YO9IAB F4EDB R-04 (x2)
162415  +2 2600  YO9IAB PD0PWH JO21 (x3)
162815  +5 2600  YO9IAB PD3RFR JO22 (x5)
163145  -4 2599  YO9IAB ON9MD JO21 (x5)

UTC    dB Audio  Message
085830  -5 2866  YO9IAB IQ4JO 73
091215 +12 2851  YO9IAB II6WWA -24 (x2)
092345 -13 2469  7Q3WS YO9IAB R-13
093130 -14 2440  UX0KR YO9IAB R+05
093300  -3 2440  CQ YO9IAB KN25
145430  +5  649  YO9IAB II0WWA -21
081200  +9 1121  YO9IAB PI4DX -25 (x2)
165730 -19 2390  CE2SV YO9IAB KN25 (x3)
165900 -16 2390  Z61DX YO9IAB KN25 (x2)
170730 -17 1145  CE2SV YO9IAB KN25

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.