SP9DGO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

932 messages

Active dates

13 UTC dates

Estimated median S/N

+4 dB

Estimated 10th-90th percentile

-4 to +11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 909.

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 SP9DGO 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 SP9DGO

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

KN09 · 540 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

75 km (approx.)

Last such locator decoded

2026-09-20 07:19 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
070445  -7 2090  SN100PKP SP9DGO KN09
070500 -10 2091  SP9DGO SN100PKP -18
070515  -8 2090  SN100PKP SP9DGO R+02
070530 -10 2091  SP9DGO RR73; G6FOV <...> -14
070645  -8  590  EA7L SP9DGO KN09 (x2)
070900  -4 1040  GJ0KYZ SP9DGO KN09
071145  -8 2214  G8UBJ SP9DGO KN09
071230 -10 1960  OZ0ZZ SP9DGO KN09
071345  -9 1538  SP9DGO OZ3MC -03 (x2)
071600  -9 2022  TF5B SP9DGO KN09 (x2)
071830 -11 1345  GJ0KYZ SP9DGO KN09 (x2)

UTC    dB Audio  Message
043130  -4 1287  SP9DGO DO5OT 73
043200 +11 2697  F1PBZ SP9DGO KN09
043215  +5 2697  SP9DGO F1PBZ -11
043230  +6 2697  F1PBZ SP9DGO R+10
043245  +3 2697  SP9DGO F1PBZ RR73
043300  +7 2697  F1PBZ SP9DGO R+10
043315  +0 2697  SP9DGO F1PBZ RR73
043330  +6 2697  F1PBZ SP9DGO 73
043430  -6 1286  CQ SP9DGO KN09 (x4)
044030  -3 1550  G4YTU SP9DGO KN09
044330  +4 1286  CQ SP9DGO KN09 (x2)

UTC    dB Audio  Message
052415 +15  735  OM8BCD SP9DGO R-05 (x4)
052700  -6  809  SP9DGO OM8BCD RR73 (x2)
052945 +16  736  OM8BCD SP9DGO 73
053000  -2 2302  SP9DGO DO9BAU JO62 (x2)
053045 +14  735  DO9BAU SP9DGO -01
053100 -10 2302  SP9DGO DO9BAU R-09
053115 +15  735  DO9BAU SP9DGO -01
053130  -6 2302  SP9DGO DO9BAU R-09
053145 +15  735  DO9BAU SP9DGO RR73
053200  -6 2302  SP9DGO DO9BAU 73

UTC    dB Audio  Message
152215  -5 1072  SP9DGO ON4JMV JO10 (x6)
194115  -3  774  SP9DGO F1PBZ RR73 (x2)
194245 +14 2027  SP9DGO DK3TNA JO62 (x3)
195230  +8  613  SP9DGO OE8PIT JN66 (x4)

UTC    dB Audio  Message
095100  -8 2000  SP9DGO EA6YK JM19 (x3)
195815  -4  439  SP9DGO IK4LZH JN54
143615  +2 2146  SP9DGO LZ3CB +03 (x2)
144415 -20 1956  SP9DGO IK7YZB RR73
145200 -20 1784  SP9DGO <...> -14 (x2)
152430 -22 1527  SP9DGO IZ8DGR -12

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.