K2HJB — 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: FN21

Receiver-side FT8 activity involving K2HJB, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-08-24.

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 15 FT8 messages attributed to K2HJB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 20 m (33%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

15
Messages attributed
3
UTC dates decoded
5
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-11
Last attributed message: 2026-08-24 22:03 UTC

Observed FT8 message patterns

Attributed sample
15 messages
Active dates
3 UTC dates
Estimated median S/N
-9 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 7.

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 K2HJB in decoded directed-looking exchanges:

Most frequent locator attributed to K2HJB

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
FN21 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,033 km (approx.)
Last such locator decoded
2026-08-24 21:55 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 UTCBandK2HJB S/NCounterpartCounterpart S/NMsgsCapture
08-27 20:13 20m - / - DL3MIB 0 / - 7 Partial capture
08-24 22:00 20m -2 / +6 SM4GMS -12 / - 5 ✓ Closing observed
08-24 21:52 20m -4 / - IK8NRQ - / - 3 Partial capture
08-24 21:44 20m - / -16 DR800WE +4 / - 2 Partial capture
08-22 02:39 40m - / -5 II7MGBT -19 / - 3 Partial capture
08-22 02:30 80m - / - UT7UA +6 / - 6 Partial capture
08-22 02:30 80m -6 / -8 OH1MLZ +8 / -7 6 ✓ Full exchange observed
08-22 02:28 80m -10 / - TI2CC - / -7 3 ✓ Closing fragment
08-22 02:25 80m -17 / -13 F4FPR -8 / -17 8 ✓ Full exchange observed
08-18 02:32 80m - / +3 HB9CXZ +4 / - 2 ✓ Closing fragment
08-16 01:35 80m - / -17 D2UY -24 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
215430  -4  384  IK8NRQ K2HJB FN21 (x2)
220045  -9  383  K2HJB SM4GMS JO79 (x4)
220330  -2  384  SM4GMS K2HJB RR73
201300  -2 1048  K2HJB DL3MIB JN57 (x2)
201400 -15 2567  K2HJB MI7XHT IO64
201400  -4 1048  K2HJB DL3MIB JN57 (x5)
40m
UTC    dB Audio  Message
023945 -16 2065  K2HJB II7MGBT -05 (x3)
064645 -16 1189  K2HJB GJ0KYZ RR73
065500 -19 1339  K2HJB GB64MOD -16
80m
UTC    dB Audio  Message
022945  -7  311  TI2CC K2HJB 73
023000  +9  908  K2HJB OH1MLZ -08
023030  +4 2743  K2HJB UT7UA KO50
023030  +7  908  K2HJB OH1MLZ -08
023100  +5 2743  K2HJB UT7UA KO50
023100  +7  908  K2HJB OH1MLZ -08
023115  -4  311  OH1MLZ K2HJB R-07
023130 +11 2743  K2HJB UT7UA KO50
023130  +8  908  K2HJB OH1MLZ RR73
023145  -9  311  OH1MLZ K2HJB 73
023200  +6 2743  K2HJB UT7UA KO50
023215  -7  312  KD2WBX K2HJB -01
023230  +5 2743  K2HJB UT7UA KO50 (x2)
023430 -24  310  TF3VS K2HJB FN21

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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