T77NC — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,324 messages

Active dates

4 UTC dates

Estimated median S/N

-5 dB

Estimated 10th-90th percentile

-13 to +4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 76, moderate (-15 to -9 dB) 283, strong (≥ -8 dB) 965.

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 T77NC 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 T77NC

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

JN63 · 473 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

979 km (approx.)

Last such locator decoded

2026-09-08 02:46 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
024230  -3  721  T77NC HA5AIL JN96
024300 -10  721  CQ T77NC JN63
024330 -12  720  UB4CJS T77NC -16
024400  -5  721  CQ T77NC JN63
024500  -8  721  HA5AIL T77NC -07
024515  +3  721  T77NC HA5AIL R-10
024530  -8  721  HA5AIL T77NC RR73
024545  +7  721  T77NC HA5AIL 73
024600  -6  721  CQ T77NC JN63
024630 -16  721  EC3A T77NC R-06 (x2)
024715 -14 1908  T77NC S52UF -06 (x4)

UTC    dB Audio  Message
065600 -11  500  IU8PML T77NC 73
065615  -2  547  T77NC HB9CEX +08
065630  -9  499  CQ T77NC JN63                       ? a1
065700  -9  499  HB9CEX T77NC R-04
065715  -1  547  T77NC HB9CEX RR73
065730  -6  499  HB9CEX T77NC 73
065800  -7  499  CQ T77NC JN63                         a1
065845  -8  499  T77NC OO7D JO10
065900  -9  500  CQ T77NC JN63
065930  -9  499  OO7D T77NC -04
065945 -11  500  T77NC OO7D R-17
193600  +0  501  M6XZD T77NC -08
193815 -15 1003  T77NC EC2ASL IN93 (x2)
015215 -17 1199  T77NC SV2YC KN10

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.