IU3VQA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

347 messages

Active dates

31 UTC dates

Estimated median S/N

-13 dB

Estimated 10th-90th percentile

-20 to -4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 123, strong (≥ -8 dB) 91.

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 IU3VQA 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 IU3VQA

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

JN65 · 181 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

821 km (approx.)

Last such locator decoded

2026-09-14 09:08 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
162915  +2 2326  IU3VQA OE6OCG R-02
162915  +2  726  IU3VQA DL6EL R-02
162930  +1 2327  OE6OCG IU3VQA RR73
162945  -1 2326  IU3VQA OE6OCG 73
163000  -3 2327  DL6EL IU3VQA RR73 (x2)
090800 -16 1528  SP100PKP IU3VQA JN65
090815  +0 2765  IU3VQA YU65AEC +10
090830 -17 1528  SP100PKP IU3VQA R+03
091015  -2  674  IU3VQA DC6MY R-11 (x2)
091100  -5 1528  EC3A IU3VQA R+00 (x2)
091200 -17 1528  GJ0KYZ IU3VQA R+04 (x2)

UTC    dB Audio  Message
065015  -8  592  US2YW IU3VQA -15
081745 -14 2212  <...> IU3VQA JN65
154100  -8 1408  IU3VQA LA1SNA JO49
154200 -12 2078  IU3VQA EA5D JN00 (x3)
181645  -2 1537  IU3VQA IR7MGGC -04
181845 -10 1022  IU3VQA EA5IXH R-23 (x3)
180545 -13 2694  4L7T IU3VQA JN65
174715  -9 1250  IU3VQA II7MGMU -17
184100 -17  791  GM0GDD IU3VQA JN65
184115 -15  675  IU3VQA GM0GDD -20 (x2)

UTC    dB Audio  Message
225430  -8 2105  IU3VQA IZ8NVV -06
174130  -8  318  IU3VQA RA6OY KN88
174130 -20 1898  IU3VQA LZ2VQ -04
174200 -10  317  IU3VQA RA6OY KN88
174200 -24 1899  IU3VQA LZ2VQ -04
174230 -11  318  IU3VQA RA6OY KN88
174115 -17 2349  IU3VQA D2ACE -12

UTC    dB Audio  Message
210400  +3 1175  IU3VQA 9A4ZM R-05 (x2)
210630  +5 2338  IU3VQA IQ4JO JN63
210630  -3 1179  IU3VQA DL1IP JN49
210700  +2 2338  IU3VQA IQ4JO R-12
210700  -2 1179  IU3VQA DL1IP JN49
210730  +2 2338  IU3VQA IQ4JO R-12
210730  +0 1179  IU3VQA DL1IP JN49
210800  +4 2338  IU3VQA IQ4JO R-12
210800  -4 1179  IU3VQA DL1IP JN49
210830  +2 2338  IU3VQA IQ4JO R-12
210830  -5 1179  IU3VQA DL1IP JN49
210900  +4 2338  IU3VQA IQ4JO R-12
210900  -2 1179  IU3VQA DL1IP JN49 (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.