R7ZS — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

468 messages

Active dates

16 UTC dates

Estimated median S/N

-5 dB

Estimated 10th-90th percentile

-17 to +7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 89, strong (≥ -8 dB) 319.

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 R7ZS 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 R7ZS

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

KN98 · 241 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,257 km (approx.)

Last such locator decoded

2026-09-16 04:13 UTC

Other locator fields attributed to this token: KN88 (52).

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
040915  -7 2832  R7ZS RA6HN LN14
040930  +0 1633  CQ R7ZS KN98
041000  +1 1633  SP5EXA R7ZS +02
041015  +1 2832  R7ZS RA6HN LN14
041030  +2 1633  SP5EXA R7ZS RR73
041115  -5 2831  R7ZS RA6HN LN14 (x2)
041230  +0 1633  HK3TY R7ZS KN98 (x2)
041315 -11 2316  R7ZS HK3TY -13
041330  -5 1633  HK3TY R7ZS R-10
041345 -13 2319  R7ZS HK3TY RR73
041400  -1 1633  HK3TY R7ZS 73
050415 -14  472  R7ZS UA1ZFL KP67 (x2)

UTC    dB Audio  Message
015245  -5 2105  R7ZS UB4CJS -04
015300  -2 1673  SQ6ELK R7ZS KN98
015315 -10 2105  R7ZS UB4CJS -04
015315  +7 1862  R7ZS SQ6ELK -10
015315 -21 1554  R7ZS ON1JP -01
015315 -24 1672  R7ZS F6FHZ JN18
015345 -12 2105  R7ZS UB4CJS -04
015345  +6 1862  R7ZS SQ6ELK -10
015345 -17 1554  R7ZS ON1JP -01
015345 -24 1673  R7ZS F6FHZ JN18
015415  -9 2105  R7ZS UB4CJS -04
015415 -16 1554  R7ZS ON1JP -01
015415 -23 1672  R7ZS F6FHZ JN18
015445 -14 2105  R7ZS UB4CJS -04
015445 -18 1554  R7ZS ON1JP -01

UTC    dB Audio  Message
062945 -22 1413  EX7CQ R7ZS KN98
132800 -14 2553  R7ZS RX6AOB KN94
154145 -10  566  R7ZS OD5ET +17

UTC    dB Audio  Message
041815 -10 1301  VP2EIA R7ZS KN98
041915 -11 1301  VA3TS R7ZS KN98
042045  -8 1301  VP2EIA R7ZS 73
042100  -5 1301  R7ZS RK4FF +15 (x2)
151545 -12 1395  UG0B/P R7ZS KN98
151715 -17 1395  9J2FI R7ZS KN98 (x3)
175845 -15 1112  Z62NS R7ZS KN88 (x2)
180430 -15 2026  E25KAE R7ZS KN88
180715  -9  764  GM4YTD R7ZS KN88
181100 -10 2026  E25KAE R7ZS KN88
181215 -11 1899  R7ZS EA6TU RR73

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.