KR4EDR — 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: EM93

Receiver-side FT8 activity involving KR4EDR, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-25.

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 25 FT8 messages attributed to KR4EDR as the transmitting token by decoded message structure across 3 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 (80%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (96%); the estimated median was -20 dB.

Overview

25
Messages attributed
3
UTC dates decoded
7
Active 15-min windows
-20 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-08-25 22:57 UTC

Observed FT8 message patterns

Attributed sample
25 messages
Active dates
3 UTC dates
Estimated median S/N
-20 dB
Estimated 10th-90th percentile
-24 to -16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 1, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with KR4EDR in decoded directed-looking exchanges:

Most frequent locator attributed to KR4EDR

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
EM93 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,042 km (approx.)
Last such locator decoded
2026-08-25 22:57 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 UTCBandKR4EDR S/NCounterpartCounterpart S/NMsgsCapture
08-25 23:00 20m - / -24 TA3HEB -4 / - 2 Partial capture
08-25 22:47 20m - / -10 K1CXS -4 / - 2 Partial capture
08-25 22:24 20m -16 / - G0TAA - / -20 2 Partial capture
08-25 22:12 20m - / -22 KA4UPI -19 / - 3 ✓ Closing fragment
08-25 21:55 20m - / - F5PBG -10 / - 4 Partial capture
08-25 21:51 20m - / - F5PBG +5 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
215715 -12 1482  KR4EDR EA8UP RR73
215815  -7 1481  KR4EDR F5PBG IN78
221245 -17 1377  KR4EDR KA4UPI -22 (x3)
222330 -16 1035  M0XUE KR4EDR RR73
222400 -16 1035  G0TAA KR4EDR -20 (x2)
224715  -6 2002  KR4EDR K1CXS FN33 (x2)
224900 -17 2002  CQ KR4EDR EM93                        a1 (x2)
225745 -14 2003  KR4EDR EA7LES IM67
230015  -2  326  KR4EDR TA3HEB KM38 (x2)

CW

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

Explore CW reception at SO8OO

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