EC2ATM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

14 messages

Active dates

5 UTC dates

Estimated median S/N

-13 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 1.

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 EC2ATM in decoded directed-looking exchanges:

Most frequent locator attributed to EC2ATM

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

IN83 · 8 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,010 km (approx.)

Last such locator decoded

2026-07-18 16:16 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
093500  -2  744  EC2ATM G7RCQ IO91
093530  -7  942  EC2ATM OE5HTL JN67
093530  +1  744  EC2ATM G7RCQ IO91 (x2)
093630  +3 2216  EC2ATM IQ4JO JN63
093800  -8  939  EC2ATM F8EFJ JN18
093830 -11 1580  EC2ATM PD9FLX JO22
093830 -10  940  EC2ATM F8EFJ JN18
093900  -9 1580  EC2ATM PD9FLX JO22
093900  -8  939  EC2ATM F8EFJ JN18
093930  -8 1580  EC2ATM PD9FLX JO22
093930  -9  939  EC2ATM F8EFJ JN18
094000  -5 1580  EC2ATM PD9FLX JO22 (x3)

UTC    dB Audio  Message
200230  -8  879  EC2ATM E70SZ JN84 (x4)
200530  -4  880  EC2ATM DL1IP JN49 (x7)
204300  -4  908  EC2ATM OE6TNO JN77 (x2)

UTC    dB Audio  Message
200830  -1  650  EC2ATM G4ZFJ JO01 (x3)

UTC    dB Audio  Message
170415  -7  917  EC2ATM IU6CWS JN72 (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.