KR4DEV — 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: EM84

Receiver-side FT8 activity involving KR4DEV, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-22.

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 2 FT8 messages attributed to KR4DEV as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

2
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

40m · 2
First attributed message: 2026-09-22
Last attributed message: 2026-09-22 23:54 UTC

Observed FT8 message patterns

Attributed sample
2 messages
Active dates
1 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with KR4DEV in decoded directed-looking exchanges:

Most frequent locator attributed to KR4DEV

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
EM84
SO8OO receiver locator
KN09VW
Locator-centre separation
8,079 km (approx.)
Last such locator decoded
2026-09-22 23:54 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 UTCBandKR4DEV S/NCounterpartCounterpart S/NMsgsCapture
10-30 00:09 40m - / -14 IT9CMZ -14 / - 2 ✓ Closing fragment
10-30 00:08 40m - / -18 TC2TR -13 / - 3 ✓ Closing fragment
10-29 22:58 40m - / -9 EA2AFV -2 / - 4 ✓ Closing fragment
10-25 01:23 40m - / -3 ON1JP -22 / - 4 Partial capture
10-25 00:09 40m - / - F4FPR -3 / - 5 Partial capture
10-16 23:05 80m - / -16 DL1RWN +24 / - 2 Partial capture
10-03 00:48 40m - / -7 F5PBG +8 / - 4 ✓ Closing fragment
09-23 00:11 40m - / - TA2EE -8 / - 3 Partial capture
09-22 23:59 40m - / +6 KC1ZDZ -13 / - 2 Partial capture
09-22 23:55 40m - / -10 J48S +2 / - 5 Partial capture
09-22 23:47 40m -5 / -5 F1BBI +12 / -8 3 ✓ Full exchange observed
09-13 23:12 40m - / - LZ2VQ -7 / - 3 Partial capture
09-13 23:07 40m - / +5 CT2HEX -3 / - 3 Partial capture
09-13 23:05 40m - / -12 PC2J -10 / - 4 ✓ Closing fragment
09-13 23:02 40m - / - LZ2VQ -10 / - 2 Partial capture
09-13 22:37 40m - / -11 UX1AA -3 / - 7 ✓ Closing fragment
09-13 22:30 40m - / -12 F4CQS -7 / - 3 Partial capture
08-30 23:47 40m - / -15 MW0CRI +1 / - 2 ✓ Closing fragment
08-30 23:40 40m - / -13 DL5DQZ +9 / - 5 ✓ Closing fragment
08-19 23:50 20m - / -4 PI4DX -8 / - 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
012300 -24 1883  KR4DEV ON1JP -03 (x4)
014915  -9 2736  KR4DEV CT2GQA IM58
225845  +1 2455  KR4DEV EA2AFV IN83 (x4)
234700  +4 2585  KR4DEV EA3NE -08
000845 -10 2018  KR4DEV TC2TR -18 (x3)
000945 -16 1037  KR4DEV IT9CMZ -14 (x2)
80m 
UTC    dB Audio  Message
230515 +25 2686  KR4DEV DL1RWN -16 (x2)
20m 
UTC    dB Audio  Message
235000  -9  896  KR4DEV PI4DX -04 (x2)
131815 -14 2730  KR4DEV IK2WSA JN45

CW

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

Explore CW reception at SO8OO

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