4O7CC — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

3,385 messages

Active dates

18 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-19 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 678, moderate (-15 to -9 dB) 1,035, strong (≥ -8 dB) 1,672.

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 4O7CC 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 4O7CC

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

JN92 · 2,145 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

854 km (approx.)

Last such locator decoded

2026-09-06 23:37 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
172945 -18 2293  4O7CC PY4VTL GG89

UTC    dB Audio  Message
232115 -24 1525  4O7CC PP5JR GG52 (x15)

UTC    dB Audio  Message
233200  +8 2207  CQ 4O7CC JN92 (x5)
233445 -24 1704  4O7CC KP4AA FK68
233500  +5 2207  KP4AA 4O7CC -12
233515 -18 1704  4O7CC KP4AA FK68
233530  +9 2207  KP4AA 4O7CC -14
233545 -20 1704  4O7CC KP4AA R-20
233600  +9 2207  KP4AA 4O7CC RR73
233615 -11 1704  4O7CC KP4AA 73
233630 +10 2207  CQ 4O7CC JN92 (x3)

UTC    dB Audio  Message
213230 -13 2238  CQ 4O7CC JN92 (x6)
213615  +6 2176  4O7CC OH6MW KP20 (x3)
213715  -9  947  4O7CC MI0TMW -22
213745  +8 2176  4O7CC OH6MW KP20
213745 -13  947  4O7CC MI0TMW -22
213815  +7 2176  4O7CC OH6MW KP20
213815 -12  947  4O7CC MI0TMW -22 (x2)

UTC    dB Audio  Message
204200 -12 2241  CQ 4O7CC JN92
204230  -7 2241  DS5USH 4O7CC -14 (x3)
204400 -10 2241  CQ 4O7CC JN92 (x2)
204500  -4 2242  IU5JAE 4O7CC -20 (x2)
204600  -6 2242  CQ 4O7CC JN92 (x7)

UTC    dB Audio  Message
205300  -9 1996  RD6OZ 4O7CC RR73
205330 -11 1997  CQ 4O7CC JN92
205345  -2  785  4O7CC K1HC FN53
205400 -16 1996  CQ 4O7CC JN92
205415  -2 2348  4O7CC K1HC FN53
205600 -15 1996  K1HC 4O7CC -12
205700 -19 1996  <R8QBH/1> 4O7CC -12
205800 -16 1996  SM7JKW 4O7CC RR73
205830 -17 1997  CQ 4O7CC JN92
210615  -7 1211  4O7CC OZ1BUR JO46
210615  +8 1465  4O7CC F4IBJ IN96
210700 -19 1996  OZ1BUR 4O7CC +02
210815 +13 1465  4O7CC F4IBJ -05 (x2)
212415  +4 1486  4O7CC EA3ML JN01

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.