RA3FD — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,055 messages

Active dates

61 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-17.8 to +4.4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 160, moderate (-15 to -9 dB) 240, strong (≥ -8 dB) 655.

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 RA3FD 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 RA3FD

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

KO96 · 634 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,353 km (approx.)

Last such locator decoded

2026-10-23 17:03 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
155530  +0 2795  G6ZRV RA3FD RR73
165430 -15 2244  CQ RA3FD KO96 (x5)
165800  +4 2898  RN6FT RA3FD -16
170000  -2 2898  CQ RA3FD KO96
170015 -12 1835  RA3FD YO3GJE KN34
170030  -3 2898  YO3GJE RA3FD -10
170045 -14 1835  RA3FD YO3GJE R-06
170100  -2 2898  YO3GJE RA3FD RR73
170130  -3 2898  CQ RA3FD KO96
170245  +3 2898  BD8FWI RA3FD KO96 (x2)

UTC    dB Audio  Message
134215 -17 1168  RA3FD PY7ZC -16 (x2)

UTC    dB Audio  Message
185745  -5  674  RA3FD R3LDK KO64
190130  +6 1315  CQ RA3FD KO96
190200  +1 1315  R4HLO RA3FD R-12 (x2)
190300  +0 1315  CQ RA3FD KO96 (x3)
190445  -6 1314  RA3FD YO8ROM KN37
190515  +3 2399  RA3FD DL9ATW JO61
190530  +1 1315  YO8ROM RA3FD RR73
190545 -10 2145  RA3FD R3LDK KO64
190600  +1 1315  R3LDK RA3FD -07
190615  -7 2146  RA3FD R3LDK R+12
190630  -2 1315  R3LDK RA3FD RR73
190645  -6 2145  RA3FD R3LDK 73

UTC    dB Audio  Message
182000 -14 1482  RA3FD R2DGN R-14
182030 -12 1551  RA3FD RA3WY KO81
182030 -13 1482  RA3FD R2DGN 73
182100 -15 1552  RA3FD RA3WY R-15 (x2)
182315 -24 1850  CQ RA3FD KO96 (x5)
192915 +13 1069  RA3FD ES2AJ -03
192930 -24 1595  ES2AJ RA3FD R+03
192945 +15 1069  RA3FD ES2AJ RR73
193315 -21 1652  RA3FD R8LCA MO27
184845 -14 2129  RA3FD RV3ZK KO90

UTC    dB Audio  Message
090045 +14 2899  CQ RA3FD KO96 (x2)
090215  -4 1131  RA3FD MI9PBM +01
090230 +16 2899  MI9PBM RA3FD R+00 (x2)
090345 +19 2899  EA5/F4IDT RA3FD KO96
090445 +19 2899  MI0NWA RA3FD KO96
190645  -4 2973  RA3FD PD4TK JO22
190715 -16 2428  RA3FD DM3CS JO41
190915  -4 2974  RA3FD PD4TK JO22 (x2)
191130  -4 2587  RA3FD DL1R JN58 (x3)
191400  -3 1658  RA3FD ON5GQ -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.