F4GAJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,746 messages

Active dates

81 UTC dates

Estimated median S/N

-16 dB

Estimated 10th-90th percentile

-22.2 to -8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 965, moderate (-15 to -9 dB) 587, strong (≥ -8 dB) 194.

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 F4GAJ 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 F4GAJ

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

IN99 · 1,300 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,633 km (approx.)

Last such locator decoded

2026-09-20 04:43 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
043645 -15 1834  CQ F4GAJ IN99
043700 +11 2737  F4GAJ F1PBZ +00
043715 -18 1834  CQ F4GAJ IN99
043730  +2 2737  F4GAJ F1PBZ +00
043745 -15 1835  VA3WLD F4GAJ -17 (x2)
043845 -16 1835  CQ F4GAJ IN99                         a1 (x9)

UTC    dB Audio  Message
061915  -9 2539  VE3GLN F4GAJ 73
062015 -13 2539  D44TWO F4GAJ IN99
050530 -23 1839  CQ F4GAJ IN99                         a1 (x4)
071900 -16 2271  F4GAJ DL/AD2LX R-18
072030 -15 2039  F4GAJ DJ2DL JO31 (x3)
072815 -20 2039  CQ F4GAJ IN99
072845 -19 2038  DJ7XY F4GAJ +02 (x2)
073045 -21 2039  SV8/SV1TQB F4GAJ IN99
155415  -3 1639  F4GAJ DL6ZOG JO52

UTC    dB Audio  Message
180745  -4 1681  F4GAJ DO1SJF 73
182615 -18 1803  ON5MX F4GAJ IN99 (x2)
184645 -20 1803  CQ F4GAJ IN99
185130 -12 1895  F4GAJ DO1SJF JN48 (x4)
183845 -16 1603  CQ F4GAJ IN99
184600  -4 1237  F4GAJ OZ1EDR JO65 (x4)
043645 -14 1604  CQ F4GAJ IN99                         a1
043700  +5  426  F4GAJ PA4PA JO22

UTC    dB Audio  Message
071415 -23 1490  FK8HA F4GAJ IN99 (x7)
072345 -24 1487  VK6IR F4GAJ IN99
072515 -18 1487  CQ F4GAJ IN99 (x6)
073215 -13 2228  F4GAJ DK8ZZ JO30

UTC    dB Audio  Message
044330 -20 2124  BG0DLA F4GAJ IN99 (x3)
044630 -24 2124  CQ F4GAJ IN99                         a1 (x9)
061845 -18 1275  OM1AMT F4GAJ -12 (x2)
065345 -21 2174  CQ F4GAJ IN99

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.