KD3CGE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN00

Receiver-side FT8 activity involving KD3CGE, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-09-22.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 17 FT8 messages attributed to KD3CGE as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
5
UTC dates decoded
9
Active 15-min windows
-19 dB
Estimated median S/N

Bands

First attributed message: 2026-09-12
Last attributed message: 2026-09-22 02:33 UTC

Observed FT8 message patterns

Attributed sample
17 messages
Active dates
5 UTC dates
Estimated median S/N
-19 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

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 KD3CGE

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
FN00 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,348 km (approx.)
Last such locator decoded
2026-09-22 02:29 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.

Time UTCBandKD3CGE S/NCounterpartCounterpart S/NMsgsCapture
09-22 02:31 40m -22 / - SP7NC - / -15 3 Partial capture
09-22 02:29 40m -21 / - SP6NIV - / -10 2 ✓ Closing fragment
09-22 02:29 40m - / - F4BYA +15 / - 4 Partial capture
09-17 01:44 40m - / -12 EA3NE 0 / - 3 ✓ Closing fragment
09-13 02:15 40m - / -13 HK3W -13 / - 6 Partial capture
09-12 02:55 40m - / -18 F5PBG +2 / - 3 ✓ Closing fragment
09-12 02:46 40m - / -11 UC6D +13 / - 2 ✓ Closing fragment
09-12 02:45 40m - / - F5PBG 0 / - 3 Partial capture
09-12 02:44 40m - / -15 R7DX +6 / - 3 ✓ Closing fragment
09-12 02:35 40m - / - RZ6L -1 / - 3 Partial capture
09-12 01:40 40m - / -14 HZ1TT -6 / - 3 ✓ Closing fragment
09-12 01:22 40m - / - F5PBG -7 / - 4 Partial capture
09-11 02:06 40m - / -13 IW9FRA -15 / - 4 Partial capture
09-11 01:54 40m - / -6 EA3HMM -4 / - 5 ✓ Closing fragment
09-11 01:53 40m - / -10 MI7XHT -22 / - 2 Partial capture
09-11 01:51 40m - / -9 CR7BRV -6 / - 2 ✓ Closing fragment
09-11 01:46 40m - / -11 EA7AH -11 / - 2 ✓ Closing fragment
09-09 02:28 40m - / -19 EB3JT -2 / - 9 Partial capture
09-09 02:25 40m - / -12 ON3ANY -10 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m
UTC    dB Audio  Message
014500  -4  532  KD3CGE EA3NE 73
021615 -15  425  CQ KD3CGE FN00                        a1
022900 +17 2705  KD3CGE F4BYA JN19
022915 -18 1639  CQ KD3CGE FN00
022930  +5 1639  KD3CGE ON3MOH -13
022930 +16 2705  KD3CGE F4BYA JN19
022945 -22 1639  SP6NIV KD3CGE -10
023000  +7 2303  KD3CGE R6FY LN05
023000 +12 2705  KD3CGE F4BYA JN19
023015 -20 1639  SP6NIV KD3CGE RR73
023030 +14 2705  KD3CGE F4BYA JN19
023115 -21 1639  SP7NC KD3CGE -15 (x3)
023345 -19 1639  N2FSM KD3CGE +00

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee