KD4YLQ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM05

Receiver-side FT8 activity involving KD4YLQ, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-22.

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 91 FT8 messages attributed to KD4YLQ as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 40 m (14%) and 80 m (3%). Most decodes (80%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

91
Messages attributed
28
UTC dates decoded
39
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-10-22 00:35 UTC

Observed FT8 message patterns

Attributed sample
91 messages
Active dates
28 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 29.

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.

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 KD4YLQ

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
FM05 · 44 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,754 km (approx.)
Last such locator decoded
2026-09-23 01:24 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 UTCBandKD4YLQ S/NCounterpartCounterpart S/NMsgsCapture
11-05 01:22 40m - / -8 MI7XHT -7 / - 2 Partial capture
11-05 00:54 40m - / -11 IT9VCE +9 / - 2 ✓ Closing fragment
11-05 00:50 40m - / -12 IU5AWQ -9 / - 4 ✓ Closing fragment
10-20 05:42 40m - / - ON8WR -14 / - 3 Partial capture
10-20 05:39 40m - / -10 OT7K +12 / - 2 ✓ Closing fragment
10-20 05:35 40m - / -20 IK4RVY -6 / - 2 ✓ Closing fragment
10-20 05:35 40m - / - IZ6KPR -9 / - 3 Partial capture
09-23 01:24 40m -8 / -14 J48S -2 / - 5 Partial capture
09-17 23:31 40m - / - DL1ESZ -14 / - 2 Partial capture
09-15 00:56 40m -18 / - ER3PM -17 / - 3 ✓ Closing observed
09-14 23:23 40m -10 / -12 EA4GA -8 / - 2 ✓ Closing observed
09-13 01:33 40m - / -13 CR7BRV -3 / - 2 ✓ Closing fragment
09-13 01:31 40m - / - EA8BS -10 / - 2 ✓ Closing fragment
09-13 01:25 40m -9 / - EA7R -6 / - 3 ✓ Closing observed
09-10 04:15 40m - / -3 SV2JAO -6 / - 2 ✓ Closing fragment
09-07 00:08 40m -6 / - 9J2FI - / -16 2 Partial capture
08-30 21:42 20m -18 / - TA3HEB - / - 2 Partial capture
08-28 22:15 20m -10 / - RI1FJL - / - 2 Partial capture
08-25 22:40 20m -19 / - IU0VOG - / -12 3 Partial capture
08-25 22:38 20m -14 / - EA4HOS - / -12 2 Partial capture
08-25 22:36 20m -12 / - 5N0YEN - / - 2 Partial capture
08-25 22:33 20m -12 / - 9A3TY - / +8 3 ✓ Closing fragment
08-23 22:42 20m -11 / - 8P6GE - / - 2 Partial capture
08-23 22:40 20m -1 / -10 4Z5PG +4 / - 5 Partial capture
08-23 12:56 20m - / -21 M1DZI -1 / - 3 Partial capture
08-22 01:31 80m -24 / -23 OK1DX +13 / - 4 ✓ Closing observed
08-22 01:25 80m - / - UT7UA +15 / - 6 Partial capture
08-22 01:24 80m - / - DK5WL -2 / - 3 Partial capture
08-22 01:22 80m - / -15 OH1MLZ +20 / - 5 ✓ Closing fragment
08-22 01:21 80m -24 / - DO9BAU - / - 2 Partial capture
08-20 23:55 20m - / -17 A92AE -6 / - 2 ✓ Closing fragment
08-20 23:49 20m -19 / -15 7Z1DM -14 / -8 5 ✓ Full exchange observed
08-16 13:54 20m - / - PD1ADA -18 / - 4 Partial capture
08-15 20:06 20m - / -17 M0URL +1 / - 3 ✓ Closing fragment
08-15 20:03 20m - / -6 MM0GTU -4 / - 2 ✓ Closing fragment
08-12 22:39 20m - / -22 IZ2CPO/QRP -23 / - 3 ✓ Closing fragment
08-11 01:52 80m - / -24 SP6JIU +24 / - 2 ✓ Closing fragment
08-11 00:14 40m - / - RN6HK -10 / - 3 Partial capture
08-11 00:10 40m - / -12 S58MU 0 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
054200 -16 1880  KD4YLQ ON8WR JO11 (x3)
003515 -17 2357  WW3QB KD4YLQ 73
205945  +0  394  KD4YLQ CT7AIU +00
000645 -10  575  KD4YLQ EA4Z RR73
005030  -9 1995  KD4YLQ IU5AWQ -12 (x4)
005445  +9  596  KD4YLQ IT9VCE -11 (x2)
005715  -8  468  KD4YLQ HB9EOT -12
012245  -8  822  KD4YLQ MI7XHT -08 (x2)
60m
UTC    dB Audio  Message
040715 -17 1271  KD4YLQ HB9ALO JN45
20m
UTC    dB Audio  Message
203230 -14 2618  KB1VFU KD4YLQ R-02
223300 -10 2216  9A3TY KD4YLQ FM05 (x3)
223600 -11 1249  5N0YEN KD4YLQ FM05 (x2)
223830 -15 2116  EA4HOS KD4YLQ -12 (x2)
224000 -19 1667  IU0VOG KD4YLQ -12 (x3)
221545 -10  354  RI1FJL KD4YLQ FM05 (x2)
214245 -20 2283  TA3HEB KD4YLQ FM05 (x2)
80m
UTC    dB Audio  Message
012445 +19 2408  KD4YLQ OH1MLZ 73
012445  -4 1514  KD4YLQ DK5WL JN39
012515 +15 2743  KD4YLQ UT7UA KO50
012515  -2 1514  KD4YLQ DK5WL JN39
012545 +10 2743  KD4YLQ UT7UA KO50
012545  -1 1514  KD4YLQ DK5WL JN39
012615 +11 2743  KD4YLQ UT7UA KO50 (x2)
012645  +5 2407  KD4YLQ DK7ZT -20
012715 +19 2743  KD4YLQ UT7UA KO50 (x2)
013115 -24 1970  OK1DX KD4YLQ FM05
013130 +23 1969  KD4YLQ OK1DX -23 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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