OH2MA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,704 messages

Active dates

56 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-15 to +10.4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 155, moderate (-15 to -9 dB) 282, strong (≥ -8 dB) 1,267.

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 OH2MA 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 OH2MA

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

KP31 · 1,021 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,325 km (approx.)

Last such locator decoded

2026-10-03 23:31 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
224545 -20 1805  9T0MD OH2MA KP31 (x15)

UTC    dB Audio  Message
200715  +7 1789  KG6JDX OH2MA KP31 (x2)
010845  +5 1997  V26K OH2MA KP31 (x6)
011130  -9 2488  OH2MA V26K RR73
011145  +5 2090  V26K OH2MA 73
011200  +7  565  OH2MA DK8HC JO42 (x5)

UTC    dB Audio  Message
202300  +1 2229  VK6IR OH2MA 73
202430  +0 2229  R2DRE OH2MA R-01 (x4)
204545  +1 2111  JA6QHQ OH2MA KP31 (x5)
204815  +6 2111  JA6LCJ OH2MA -15 (x5)

UTC    dB Audio  Message
180145  +2 2087  TK8RI OH2MA R-20 (x2)
185145  +7 1200  RI1FJZ OH2MA KP31 (x2)
185245  +9 1200  CQ OH2MA KP31
185300  -2 1536  OH2MA SN1A JO73
185300  -4 1199  OH2MA IU3WNU -05
185330  -4 1200  OH2MA DG2EBG JO31
031215 -17 1696  OH2MA JY5IB -11 (x2)
031615  -4 1261  OH2MA UA4FKT LO23 (x5)

UTC    dB Audio  Message
083500  -4 1842  HL5QY OH2MA -15 (x2)
083700  -8 1842  RA0AN OH2MA R-13 (x3)
083930  -6 1842  HB9RTW OH2MA RR73
083945 -11 2501  OH2MA HB9RTW 73
084530  -4 1842  TA1MB OH2MA R-13
084545 -14 2039  OH2MA TA1MB -16
084600  -8 1842  TA1MB OH2MA R-13
084615  -9 2039  OH2MA TA1MB RR73
084630 -12 1842  TA1MB OH2MA 73
084800 -16 1842  JA1XIA OH2MA -13
084815  -9 2039  OH2MA TA1MB -07
084830 -15 1842  JA1XIA OH2MA RR73

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.