DC2SF — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,348 messages

Active dates

46 UTC dates

Estimated median S/N

-9.4 dB

Estimated 10th-90th percentile

-19 to +1.7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 315, moderate (-15 to -9 dB) 419, strong (≥ -8 dB) 614.

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 DC2SF 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 DC2SF

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

JN58 · 616 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

799 km (approx.)

Last such locator decoded

2026-09-18 18:36 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
192900 -12 1075  DC2SF DO3ME JO31
192945  -9 1504  DO4FBI DC2SF 73
193000  -8 1075  DC2SF DO3ME JO31 (x3)
181245  +0 1713  II6IGTO DC2SF JN58 (x3)
181600  -3 2306  DC2SF II8IHBC +01
181715  +6 1029  3Z100PKP DC2SF JN58
181730 +14 1029  DC2SF 3Z100PKP -09
181745  +4 1029  3Z100PKP DC2SF R+02
175945  -5 1472  DC2SF SV1DKR RR73
183645  -1  614  IQ0AK DC2SF JN58 (x2)

UTC    dB Audio  Message
152300  -3 2291  R6HV/P DC2SF JN58 (x2)
152900 -19 1358  DC2SF II8IHBC +01
152915  -6 1358  II8IHBC DC2SF R-01
152930 -19 1358  DC2SF RR73; IK0QDM <...> +14
153015  -3 1701  II9IAGM DC2SF JN58 (x2)
161745 -15 2112  EP2AES DC2SF JN58
170500  -9 1676  II6IALU DC2SF JN58
170845  +6 1099  DC2SF SP9TEX +04
170900  -2 1097  SP9TEX DC2SF R-08
170915  +5 1099  DC2SF SP9TEX RR73
170930  +0 1097  SP9TEX DC2SF 73
171100  -3 1097  IW1CKR DC2SF -10
183200 -11 1827  DC2SF RR73; G7NUT <...> -18

UTC    dB Audio  Message
104645  -1  830  II7MGFG DC2SF JN58 (x4)
105600 -10 1046  <...> DC2SF JN58
112945 -12 1630  DC2SF G8XDD/P -14 (x2)
113300 -10 2519  Z31PM DC2SF R+06 (x2)
114030  -8 2696  AA3B DC2SF R+13
114045  +2 2696  DC2SF AA3B RR73
120530 -15 1801  LB5CK DC2SF JN58
190100 -15 2468  DC2SF EA2WX/P -04 (x2)
190530  -9  699  DC2SF II7MGBA +01

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.