7Z1DZ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

222 messages

Active dates

11 UTC dates

Estimated median S/N

-13 dB

Estimated 10th-90th percentile

-21 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 90, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 68.

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 7Z1DZ 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 7Z1DZ

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

LK08 · 79 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

3,891 km (approx.)

Last such locator decoded

2026-10-28 12:55 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
143845  -8  552  ON4AGV 7Z1DZ -16 (x2)
144130 -10  883  SV5BYP 7Z1DZ LK08 (x2)
144230 -20 1815  KB1HY 7Z1DZ LK08
144300 -11  883  SV5BYP 7Z1DZ R-12
144430 -10 2111  IK1RQX 7Z1DZ -07 (x2)
144700 -23 1814  KB1HY 7Z1DZ LK08
155015 -11 1102  7Z1DZ EA5JFO -22
160400 -21 1480  7Z1DZ EA9RY -12 (x2)
122800 -12 2495  7Z1DZ CR7BUW IM58 (x2)
125545 -11  424  CQ 7Z1DZ LK08                         a1

UTC    dB Audio  Message
163930 -16 1578  7Z1DZ UB3ZKO KO80
163930  +6  684  7Z1DZ OH3MB KP20 (x3)
175730 +11 2453  7Z1DZ DJ6VX JO31 (x2)
175900 -14  784  7Z1DZ DL6UM JO60
175900 +14 2453  7Z1DZ DJ6VX JO31 (x2)
180100  -9 1593  7Z1DZ LZ2PC KN22
180100 +11 2453  7Z1DZ DJ6VX JO31
180130 -16 1593  7Z1DZ LZ2PC KN22
180130  +8 2453  7Z1DZ DJ6VX JO31
180200  -9 1593  7Z1DZ LZ2PC KN22
180530 -17 1267  7Z1DZ SV1EGE KM17

UTC    dB Audio  Message
194530  +4 2918  7Z1DZ F4BYA JN19 (x2)
194630  -5 1744  7Z1DZ TA2ED -17
194700  -3 1008  7Z1DZ EB5FMC IM99 (x4)
194930 -20 2275  7Z1DZ BG7BMG -25
201000  -6 1619  7Z1DZ CT1BFP IM59 (x3)
201200 -11 1008  7Z1DZ EB5FMC IM99
201200  -3 1619  7Z1DZ CT1BFP IM59
201900  -5 1744  7Z1DZ TA2ED -18 (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.