SP9FBN — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

101 messages

Active dates

11 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-11 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 79.

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 SP9FBN 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 SP9FBN

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

JO90 · 38 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-10-02 18:56 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
210545 -16 1955  RX3ASQ SP9FBN -15
210600  -1 1116  SP9FBN RX3ASQ R-16
210615 -18 1955  RX3ASQ SP9FBN RR73
210630  +0 1116  SP9FBN RX3ASQ 73
181230  -6 2288  ON5MX SP9FBN JO90 (x3)
181345 -10 1367  SP9FBN ON5MX -11 (x2)
181430 -13 2288  ON5MX SP9FBN R-14
181445  -4 1367  SP9FBN ON5MX RR73
181630  -1 2288  EA5DKT SP9FBN JO90 (x2)
185600  -3 1614  IU3WOZ SP9FBN JO90 (x2)

UTC    dB Audio  Message
175315  +4 1234  SP9FBN LY8O 73
175315 -16 1599  SP9FBN DL9KM JN68
175330  -7 1543  DL9KM SP9FBN -10 (x2)
175430  -8 1543  CQ SP9FBN JO90 (x5)
175645  -8 1542  SP9FBN OH2BYJ KP10 (x2)
175730  -6 1543  OH2BYJ SP9FBN RR73
175745  -5 1542  SP9FBN OH2BYJ 73
175830  -5 1543  G7RVH SP9FBN -22 (x2)

UTC    dB Audio  Message
153545  -7 2705  HA3HZ SP9FBN -11 (x3)
153915  -7 2705  M3VNI SP9FBN JO90 (x2)
223830 -17 2443  SP9FBN ON1BH RR73
212630 -21 1335  SP9FBN PD7BDN JO22 (x2)
182015 -10 2317  SP9FBN OZ9FF -16 (x2)
215930  -7  396  SP9FBN F1PBZ -08 (x2)
220200  +7 2982  SP9FBN F4BYA JN19 (x3)

UTC    dB Audio  Message
152345 -20 2247  SP9FBN PA2IPA R-03
194130  +0 2769  SP9FBN F1PBZ -22
194400 -18 1195  SP9FBN OE7FTI R-08
200000  -2 2993  SP9FBN F6BHK JN24
205545  -1 2960  SP9FBN JF1UVJ PM95 (x3)
212215  -1  905  SP9FBN TA7ARH R-13 (x4)
182045  -8  832  SP9FBN DF0KK JO31 (x4)

UTC    dB Audio  Message
070145  -9 1549  SP9FBN RN6MA -07

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.