OK1CZ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

31 messages

Active dates

4 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-22 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 13.

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 OK1CZ 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 OK1CZ

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

JO70 · 21 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

487 km (approx.)

Last such locator decoded

2026-10-28 22:57 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
103745  +5 1680  OK1CZ HA7TM R-11
103800 -20 1679  HA7TM OK1CZ RR73
103815  -8 1478  OK1CZ HG8LXL KN06
103815  +1 1681  OK1CZ HA7TM 73
103845  -8 1478  OK1CZ HG8LXL KN06 (x3)
230945  +2  588  OK1CZ TA2PYZ -16 (x2)
231815 -15 1946  OK1CZ EC3A -09 (x2)
232515  -4 1939  OK1CZ TA2PYZ -13 (x4)

UTC    dB Audio  Message
220345  -8 1676  CQ OK1CZ JO70
220500  -5  703  OK1CZ IU5HIU JN53
224745 -18 1200  HA6ZB OK1CZ JO70 (x2)
225030 -14 1200  IK6BSN OK1CZ JO70
225245 -20 1200  SM2OTU OK1CZ JO70 (x3)
225545  -9 2362  OK1CZ EI4DQ -04
225600  +0 1200  EI4DQ OK1CZ R-12
225645  -8 2247  OK1CZ HB9CXZ JN46
225645 -21 1200  E75EP OK1CZ JO70
225715  -9 2248  OK1CZ HB9CXZ JN46
225715 -22 1200  E75EP OK1CZ JO70
225845  -3 2247  OK1CZ HB9CXZ JN46

UTC    dB Audio  Message
223630  -2 1643  9A4AA OK1CZ JO70
223645  -2  813  OK1CZ 9A4AA -13
223700 -15 1644  9A4AA OK1CZ R-17
223715  -3  813  OK1CZ 9A4AA RR73
223730  -6 1644  9A4AA OK1CZ R-17
223745  +2  813  OK1CZ 9A4AA RR73
223800  -5 1644  9A4AA OK1CZ 73
223915 -13 1365  OK1CZ RA4Y LO35
223915  +0 1198  EA4IPN OK1CZ JO70 (x3)

UTC    dB Audio  Message
184915  -9 1624  G0VAX OK1CZ JO70 (x3)

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.