KY4KY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM78

Receiver-side FT8 activity involving KY4KY, decoded by SO8OO in southeastern Poland. 320 FT8 messages attributed to this token as transmitter, on 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-20.

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 320 FT8 messages attributed to KY4KY as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (99%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

320
Messages attributed
8
UTC dates decoded
48
Active 15-min windows
-15 dB
Estimated median S/N

Bands

20m · 320
First attributed message: 2026-06-07
Last attributed message: 2026-06-20 01:08 UTC

Observed FT8 message patterns

Attributed sample
320 messages
Active dates
8 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 138, moderate (-15 to -9 dB) 164, strong (≥ -8 dB) 18.

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 KY4KY in decoded directed-looking exchanges:

Most frequent locator attributed to KY4KY

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
EM78 · 173 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,859 km (approx.)
Last such locator decoded
2026-06-20 01:08 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 UTCBandKY4KY S/NCounterpartCounterpart S/NMsgsCapture
06-22 00:45 20m - / -16 UA8Q -19 / - 2 ✓ Closing fragment
06-22 00:32 20m - / -22 EA3FKT -10 / - 3 Partial capture
06-21 23:17 20m - / -13 RV6AVU -16 / - 3 Partial capture
06-21 06:16 20m - / -6 F6DZU -6 / - 2 ✓ Closing fragment
06-21 06:03 20m - / -19 DL3HBF -5 / - 3 Partial capture
06-21 04:19 20m - / -9 LZ2KV -8 / - 2 Partial capture
06-21 02:11 40m - / -23 EB1LA -14 / - 3 ✓ Closing fragment
06-20 01:07 40m - / - F1IQH -5 / - 3 Partial capture
06-20 01:02 20m -13 / - UR5WCS - / -4 4 ✓ Closing fragment
06-20 00:53 20m - / - RM8L -14 / - 2 Partial capture
06-20 00:51 20m -16 / - YO8CNA - / -12 4 ✓ Closing fragment
06-20 00:38 20m -21 / -8 EA1JCV -2 / -18 3 ✓ Full exchange observed
06-20 00:15 20m - / - EA1FEP -2 / - 2 Partial capture
06-19 23:50 40m - / - W1GRL -16 / - 2 ✓ Closing fragment
06-19 23:42 20m -18 / - DL9KM - / -15 4 Partial capture
06-19 23:40 20m -18 / -15 R8LB -9 / +6 5 ✓ Full exchange observed
06-19 23:38 20m - / - R8CBB +4 / - 3 Partial capture
06-19 23:27 20m -19 / -13 EA3ISZ -15 / -18 6 Partial capture
06-19 23:23 20m - / - EI7JQ -13 / - 3 Partial capture
06-19 22:30 20m - / - MW5HOC +2 / - 3 Partial capture
06-19 22:11 20m - / - EB3JT +2 / - 6 Partial capture
06-19 21:30 20m - / -17 IW9HPG +2 / - 3 Partial capture
06-19 21:10 20m - / - LA5ZUA -2 / - 3 Partial capture
06-19 19:57 20m - / - MW7AHM -19 / - 2 Partial capture
06-19 19:53 20m - / -12 G5MJF -9 / - 6 Partial capture
06-19 05:52 20m - / - F1PSX -20 / - 2 Partial capture
06-19 05:39 40m - / - DA1ST -10 / - 8 Partial capture
06-19 04:12 80m - / -18 EA6ET -12 / - 3 ✓ Closing fragment
06-19 03:27 40m - / -17 M0PBG -3 / - 3 Partial capture
06-19 03:13 80m - / -1 F5RRS +2 / - 4 ✓ Closing fragment
06-19 02:54 40m - / -15 EA4D -14 / - 2 Partial capture
06-19 02:50 40m - / - SV1BLD -5 / - 2 Partial capture
06-19 02:48 40m - / - ON4MAP -20 / - 4 Partial capture
06-19 02:15 80m - / +7 F1PBZ +14 / - 4 Partial capture
06-19 01:47 40m - / - IN3IZQ -13 / - 7 Partial capture
06-19 01:42 40m - / - IN3IZQ -13 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
041945  -7 2483  KY4KY LZ2KV R-09
053145 -21 1325  KY4KY PD2WL R-16
060345  -4  519  KY4KY DL3HBF R-19 (x3)
061615  -7  450  KY4KY F6DZU -06 (x2)
231745 -16  866  KY4KY RV6AVU R-13 (x3)
003215 -11 1233  KY4KY EA3FKT -22 (x3)
004545 -18 2162  KY4KY UA8Q R-16 (x2)
40m 
UTC    dB Audio  Message
054115 -11 1305  KY4KY DA1ST JO41 (x6)
235045 -17 1162  KY4KY W1GRL FN54 (x2)
010745  -7  891  KY4KY F1IQH JN27 (x3)
021115 -16 1246  KY4KY EB1LA IN73 (x3)
031045 -19 1250  KY4KY SP5EXA KO02
80m 
UTC    dB Audio  Message
021515 +14 2655  KY4KY F1PBZ +07 (x4)
031315  +3 1801  KY4KY F5RRS JN36 (x4)
041245 -11 1261  KY4KY EA6ET JM19 (x3)
040715 -10 1262  KY4KY G5LP IO92

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.

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