K4FS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: EM85

Receiver-side FT8 activity involving K4FS, decoded by SO8OO in southeastern Poland. 144 related FT8 messages, 1 CQ messages, observed on 80m, 40m, across 11 UTC dates. Heard between 2026-04-23 and 2026-06-04.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

144
Related messages
1
CQ messages
11
UTC dates heard
-2 dB
Mean decoder S/N

Bands

First seen: 2026-04-23
Last seen: 2026-06-04 23:22 UTC

Frequent QSO partners observed at SO8OO

Stations K4FS worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by K4FS

Approximate centre of EM85, decoded 2026-07-24 01:10 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandK4FS S/NCounterpartCounterpart S/NMsgsCapture
07-24 01:09 80m -20 / - RX6DA - / - 2 Partial capture
06-05 01:21 80m - / - RA7E -2 / - 3 Partial capture
06-05 01:20 80m - / - DL1BBO +7 / - 3 Partial capture
06-04 02:01 40m -6 / - OJ0Z - / - 5 Partial capture
06-04 01:53 80m -21 / - FM5GB - / - 2 Partial capture
06-04 01:43 80m - / - DL1BBO +6 / - 3 Partial capture
06-04 01:41 80m -24 / -18 4Z5AV -3 / -16 6 ✓ Full exchange observed
06-03 03:26 80m - / - EC3A -19 / - 4 Partial capture
06-03 03:25 80m - / -10 ON6AA +4 / - 4 ✓ Closing fragment
06-03 03:21 80m - / -20 IK2YCW +10 / - 4 ✓ Closing fragment
06-03 03:20 80m - / -9 IQ4JO +4 / - 3 ✓ Closing fragment
06-03 03:19 80m - / - EC3A -17 / - 2 Partial capture
06-03 03:19 80m - / - F5NLY -9 / - 2 Partial capture
06-03 03:12 80m - / -12 PW8BR -12 / - 3 ✓ Closing fragment
05-31 01:34 80m -10 / -5 TJ1GD -18 / -24 6 ✓ Full exchange observed
05-31 01:27 80m -11 / -6 TJ1GD -16 / -17 11 Partial capture
05-31 01:16 80m -14 / - TJ1GD - / -13 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
014345  +7 2853  K4FS DL1BBO JO43 (x2)
015315 -20 1842  FM5GB K4FS EM85 (x2)
012045  +6 2797  K4FS DL1BBO JO43
012115  -6 2231  K4FS RA7E LN14
012115  +7 2797  K4FS DL1BBO JO43
012145  -3 2231  K4FS RA7E LN14
012145  +7 2797  K4FS DL1BBO JO43
012215  +3 2231  K4FS RA7E LN14
005245 -21 1433  HK3X K4FS R-07
005615 -24 1441  KA4PND K4FS +09
005845 -24 1791  N2MH K4FS EM85
010945 -22 1732  RX6DA K4FS EM85 (x2)
40m
UTC    dB Audio  Message
020145 -10 2007  OJ0Z K4FS EM85 (x5)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.