R5FN — reception at SO8OO

Observed FT8 message patterns

Attributed sample

429 messages

Active dates

37 UTC dates

Estimated median S/N

-4.2 dB

Estimated 10th-90th percentile

-15 to +5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 106, strong (≥ -8 dB) 284.

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 R5FN 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 R5FN

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

KO95 · 333 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,309 km (approx.)

Last such locator decoded

2026-10-10 15:43 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
062500  -7 2701  R5FN DF9HT/P RRR
043245  -3 2555  RO2E/P R5FN KO95 (x4)
043500 -12 2446  R5FN RO2E/P -14
043515  +2 2555  RO2E/P R5FN R-11
043530 -12 2446  R5FN RR73; RA4P <...> +00
043545  -9 2555  RO2E/P R5FN 73
123245 -15 2255  JH2BJL R5FN KO95
154345  +8 2821  LZ936BA R5FN KO95 (x2)
154515  +5 2822  DL8UG R5FN -17 (x2)
154630  -8 2488  R5FN ON8WR JO21

UTC    dB Audio  Message
131500 -10 2791  JA5SUD R5FN KO95
131515  -8 1735  R5FN JA5SUD -04
131600  -9 2792  JA5SUD R5FN 73
131630  -6 2791  RN0JJ R5FN R-02 (x2)
121215 -12 2590  JH6NYL R5FN KO95 (x2)
124015  -3 2637  R5FN EB3JT JN01 (x3)
124330 -16 2638  JA1IST R5FN RR73
124530  -1 2638  JM7GTK R5FN KO95 (x3)
184415  -4 2244  R5FN G4DBW JO01

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.