HA2ECM — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

73 messages

Active dates

2 UTC dates

Estimated median S/N

-5 dB

Estimated 10th-90th percentile

-14 to -1 dB

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 46.

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 HA2ECM in decoded directed-looking exchanges:

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 HA2ECM

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

JN97 · 40 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

340 km (approx.)

Last such locator decoded

2026-09-18 19:08 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
114100 -17 1302  HA2ECM CR7BUJ -12 (x2)
114330 -23 2013  HA2ECM CR7CDR R-23

UTC    dB Audio  Message
190045  +2  409  S53AK HA2ECM RR73
190100  -5 1647  HA2ECM S53AK 73
190245  -1  409  S53AK HA2ECM JN97
190315  -2  541  CQ HA2ECM JN97
190530  -1  542  HA2ECM F6BHK R-18 (x3)
190715  -3  400  CQ HA2ECM JN97                        a1 (x4)
190915  -2  401  HB9EXN HA2ECM -04
190930  +2 1337  HA2ECM SQ6WA JO81
190930  -4  401  HA2ECM HB9EXN R-18
190945  -2  401  HB9EXN HA2ECM RR73

UTC    dB Audio  Message
164200  +1  457  HA2ECM TA3KJ RR73
165030 -15  940  HA2ECM G8IXM -16
165530  +1  785  HA2ECM M7OFN +03 (x5)
153600  +0  851  HA2ECM F5SYF -11 (x2)
153900  -6 2078  HA2ECM EA5D -19 (x2)
154100  -1 1704  HA2ECM SV1EAG -05 (x2)
173200 +17  899  HA2ECM ON4DS +02 (x2)

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.