PD3FJJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,797 messages

Active dates

99 UTC dates

Estimated median S/N

-7.3 dB

Estimated 10th-90th percentile

-16 to +4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 226, moderate (-15 to -9 dB) 558, strong (≥ -8 dB) 1,013.

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 PD3FJJ 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 PD3FJJ

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

JO21 · 1,283 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,192 km (approx.)

Last such locator decoded

2026-09-27 21:47 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
180145 -12 1385  OK2PUM/P PD3FJJ JO21
180200 -15 1464  PD3FJJ 3Z100PKP -09
180215  -9 1385  OK2PUM/P PD3FJJ JO21
180230 -11 1465  PD3FJJ 3Z100PKP -01
180245 -13 1385  OK2PUM/P PD3FJJ R+02
213715 -20 1094  AP5ARS PD3FJJ 73
213730 -19 1976  PD3FJJ IU8RFW JN70 (x4)
214215 -17 1093  EB5AKG PD3FJJ +01
214445 -15 1093  W1RQ PD3FJJ JO21 (x4)

UTC    dB Audio  Message
092815  +4 2282  II7MGBR PD3FJJ JO21 (x3)
092945  +5  829  <...> PD3FJJ JO21
093000  +3  755  PD3FJJ IR7MGGC +06
093015  +4  829  <...> PD3FJJ R+15 (x2)
112645 -11 2154  II7MGBT PD3FJJ JO21 (x5)
113000  +0 2103  PD3FJJ II7MGBT -07
113500  -8 1092  PD3FJJ II7MGXX -06
113530 -13 1092  PD3FJJ RR73; PA3DP <...> +06

UTC    dB Audio  Message
110530 -14 2152  CQ PD3FJJ JO21
110600 -17 2153  E70SZ PD3FJJ -07
110615 -17 2153  PD3FJJ E70SZ R-01 (x2)
110830 -17 2153  CQ PD3FJJ JO21 (x2)
111000 -20 2153  OK2XCG PD3FJJ RR73
123900 -11 2154  <...> PD3FJJ JO21
185200 -23 1702  CQ PD3FJJ JO21                        a1 (x2)
185245 -24 1699  PD3FJJ DH5BM JO41
185645 -10  489  PD3FJJ IK4LZH JN54
072600  -8 2215  CQ PD3FJJ JO21
110715 -20 2066  II7MGXX PD3FJJ JO21 (x2)

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.