UA4QK — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

977 messages

Active dates

57 UTC dates

Estimated median S/N

-10 dB

Estimated 10th-90th percentile

-18.3 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 199, moderate (-15 to -9 dB) 359, strong (≥ -8 dB) 419.

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 UA4QK 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 UA4QK

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

LO45 · 482 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,920 km (approx.)

Last such locator decoded

2026-09-12 17:04 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
185400  -1 1739  UA4QK R6FFB LN14
185430 -21 1522  UA4QK RW3VA LO06 (x3)
184215 -24 1903  UA4QK RX3VF -16
161315  -3 2315  UA4QK R3SV +00 (x2)
165515  -5 1709  UA4QK RZ6BS KN96
165545 -17 1193  UA4QK RL3F KO95
165545  -7 1709  UA4QK RZ6BS KN96 (x2)
170915 -10  966  UA4QK RA3UEV RR73
170945  -9 1143  UA4QK RL3F KO95 (x3)

UTC    dB Audio  Message
160915  -7 3090  R4AGE/P UA4QK LO45 (x5)
161400 -12 2124  UA4QK R4AGE/P -09 (x3)
165815  -6 2590  R4AGE/P UA4QK LO45 (x6)
170630 -10 1536  UA4QK RF9C +02

UTC    dB Audio  Message
151900  -4  525  R6FFB UA4QK -11
151915  -5  885  UA4QK R6FFB R-02
151930  -9  525  R6FFB UA4QK RR73
151945  -7  885  UA4QK R6FFB 73
152045  +7  520  UA4QK 9A4ZM JN86 (x2)
163315  -3 2625  R6HV/P UA4QK LO45
163330 -16 2228  UA4QK R6HV/P -04
163345  -7 2624  R6HV/P UA4QK R-08
163400 -18 2228  UA4QK R6HV/P RR73
163415  -5 2624  R6HV/P UA4QK 73
163430 -10 1647  UA4QK HG8LXL KN06
163430  +2 2624  UA4QK DJ0MAB JN49
163515  -5 2624  R6FX UA4QK RR73
163630  -7 2622  UA4QK GM0SDV IO75

UTC    dB Audio  Message
162500 -11 1015  RW6A/P UA4QK LO45
162600  -5 2416  R6YBU UA4QK LO45
162645  -5 2415  UA4QK R6YBU -03
162700 -11 2416  R6YBU UA4QK R-01
162715  -7 2416  UA4QK R6YBU -03
162730 -10 2416  R6YBU UA4QK R+00
162745  -1 2416  UA4QK R6YBU RR73
162800  -5 2416  R6YBU UA4QK 73
162815 -17 2415  UA4QK DJ0MAB JN49
163015  -9  716  R9HEQ UA4QK LO45 (x6)

UTC    dB Audio  Message
071800 -23 2102  UA4QK RV6HE -03

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.