KW4YA — 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: EM78

Receiver-side FT8 activity involving KW4YA, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-20.

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 60 FT8 messages attributed to KW4YA as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -5 dB.

Overview

60
Messages attributed
4
UTC dates decoded
7
Active 15-min windows
-5 dB
Estimated median S/N

Bands

20m · 60
First attributed message: 2026-06-10
Last attributed message: 2026-08-20 22:37 UTC

Observed FT8 message patterns

Attributed sample
60 messages
Active dates
4 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-13 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 43.

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 KW4YA in decoded directed-looking exchanges:

Most frequent locator attributed to KW4YA

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 · 36 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,859 km (approx.)
Last such locator decoded
2026-08-20 22:37 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 UTCBandKW4YA S/NCounterpartCounterpart S/NMsgsCapture
09-28 16:23 80m - / - DO1LKG -16 / - 3 Partial capture
09-24 00:22 80m - / -18 G7KHF -10 / - 2 Partial capture
09-24 00:19 80m - / -15 F5UKW +13 / - 2 ✓ Closing fragment
09-24 00:08 80m - / -7 GW8DX +10 / - 2 ✓ Closing fragment
09-14 23:43 80m - / -8 N1TQP -8 / - 2 ✓ Closing fragment
08-27 18:20 20m - / - RC8SC -18 / - 2 Partial capture
08-22 11:16 20m - / - F4MSA -13 / - 3 Partial capture
08-21 22:11 20m - / -14 IW2MYH -4 / - 5 ✓ Closing fragment
08-21 22:09 20m - / -8 OK2CNI -12 / - 4 ✓ Closing fragment
08-21 22:02 20m - / -11 9K2GR +8 / - 4 ✓ Closing fragment
08-20 22:36 20m 0 / - EA2WX - / - 2 Partial capture
08-20 22:34 20m 0 / - LZ2EW -16 / -13 3 ✓ Closing observed
08-20 22:33 20m +2 / - OE1MSC - / -14 2 ✓ Closing fragment
08-20 22:30 20m +4 / - LX1JX - / -4 5 ✓ Closing fragment
08-20 22:27 20m +1 / - 9J2FI - / -13 4 ✓ Closing fragment
08-14 03:51 80m - / -13 9A5E -2 / - 2 ✓ Closing fragment
08-10 01:01 80m - / -3 VP2MAA -14 / - 2 ✓ Closing fragment
07-30 21:20 20m - / -21 IU0TYC -9 / - 4 ✓ Closing fragment
07-30 21:19 20m - / - IK5FCH -7 / - 2 ✓ Closing fragment
07-30 20:58 20m - / -10 CT1BFP -1 / - 19 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
003200  -6 2868  KW4YA KD2WBX R+10
003415  -5 1162  KW4YA LZ2IP -18
001330 -21 1868  KW4YA C5R RR73
001800 -21 1867  KW4YA RR73; EA8CZ <...> -08
80m 
UTC    dB Audio  Message
010200 -14  966  KW4YA VP2MAA RR73
035115  -3 2136  KW4YA 9A5E -13 (x2)
234345  -7  601  KW4YA N1TQP -08 (x2)
000830  +9 2538  KW4YA GW8DX -07 (x2)
001800  +6 2481  KW4YA F4UJU JN06
001930 +14 1062  KW4YA F5UKW -15 (x2)
002200 -12  953  KW4YA G7KHF -18 (x2)
162345 -17 1953  KW4YA DO1LKG JO53 (x3)
20m 
UTC    dB Audio  Message
220500  +8 2246  KW4YA 9K2GR RR73
220930 -11 2419  KW4YA OK2CNI JN79 (x4)
221100  -2  835  KW4YA IW2MYH JN45 (x5)
111630 -17 1757  KW4YA F4MSA IN97 (x3)
182015 -21 1217  KW4YA RC8SC LO71 (x2)

CW

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

Explore CW reception at SO8OO

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