Z34K — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

3,367 messages

Active dates

88 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-14.9 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 270, moderate (-15 to -9 dB) 692, strong (≥ -8 dB) 2,405.

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 Z34K 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 Z34K

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

KN01 · 2,205 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

940 km (approx.)

Last such locator decoded

2026-10-03 05:32 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
050330  +2  532  SP9EVL Z34K +03 (x2)
050415 -17  791  Z34K F4GYY IN97
050430  +2  532  F4GYY Z34K -04
050445 -19  791  Z34K F4GYY IN97
050500  +3  532  F4GYY Z34K +02 (x3)
050830  +1  533  K8SSN Z34K KN01
012645  +3 2437  Z34K N6AR -06 (x3)
053245  -5 1182  HK3W Z34K KN01
053400  -5  991  Z34K LA6AFA JO59 (x2)

UTC    dB Audio  Message
152100  -5 2444  YY4GPM Z34K R-11 (x5)
152400  -8 2444  LU5FF Z34K KN01 (x3)
091615  -4 2594  Z34K UA9CMN -03 (x2)
091815  -9 2419  Z34K RM8L -06 (x2)
092200  -4 2078  Z34K RA9LL -06 (x3)

UTC    dB Audio  Message
172630  +9  576  YB6XFI Z34K KN01 (x4)
173245 -11  672  Z34K M9NAM IO92 (x4)
174115  -8 1045  YB6XFI Z34K KN01 (x7)

UTC    dB Audio  Message
055715  -1 1236  Z34K S57MPU JN76 (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.