SP7GTA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

144 messages

Active dates

14 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-20 to +1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 96.

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 SP7GTA 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 SP7GTA

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

JO91 · 91 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

262 km (approx.)

Last such locator decoded

2026-09-16 09:52 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
171130 -12 2349  SP7GTA S51PV R-15 (x2)
171300  -6 1410  II9IAGM SP7GTA JO91 (x2)
195500  -5 1071  SP7GTA II0IHMG -05
071030 -18 1366  SP7GTA II7IABB -20
071130 -18 1574  SP7GTA GJ0KYZ -16 (x2)
071545  -5  475  SP7GTA II7IAME -15
073330  -8  590  SP7GTA II9IAGM -24
095215  -7 1048  WB8YJF/NA67 SP7GTA JO91 (x2)
095315  -4 1050  II6IALU SP7GTA R-16
095345  -3 1048  WB8YJF/NA67 SP7GTA R-16 (x2)

UTC    dB Audio  Message
174615  +8 1859  SP7GTA SP7VLU R-09
174630  +5 1858  SP7VLU SP7GTA RR73
174645  +3 1859  SP7GTA SP7VLU 73
183515 -10 1655  SQ8V SP7GTA JO91 (x3)
170930 -18 1820  SP8BJU SP7GTA JO91
171015 +15 1066  SP7GTA SP8BJU -12
171030 -17 1820  SP8BJU SP7GTA R+02
171045 +12 1066  SP7GTA SP8BJU RR73
193645  -1 1559  <II8IHBC> SP7GTA JO91 (x3)
194145 -13 1836  II6IGTO SP7GTA JO91 (x2)

UTC    dB Audio  Message
195630 -15 2044  SP7GTA F4GZO JN09
195730  -1  604  SP7GTA SV2CLJ KN10 (x4)
195930  +3 1042  SP7GTA E77TT JN84
201700 -17 1563  SP7GTA PV8AJ -19 (x2)
083200 -10  518  SP7GTA II9WWA -14
090245  +1  501  SP7GTA TK5K +03 (x2)
080300 -14 1825  SP7GTA LZ4VR KN13 (x4)

UTC    dB Audio  Message
173930  -6 1071  SP7GTA II7WWA -04
195745  -7 1725  SP7GTA JA6TXU 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.