DJ7M — reception at SO8OO

Observed FT8 message patterns

Attributed sample

6,980 messages

Active dates

66 UTC dates

Estimated median S/N

+15 dB

Estimated 10th-90th percentile

+2.7 to +22 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 106, strong (≥ -8 dB) 6,859.

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 DJ7M 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 DJ7M

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

JN49 · 5,417 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

920 km (approx.)

Last such locator decoded

2026-10-22 19:13 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
185515 +23  402  OD5ZZ DJ7M 73
185530 -11 1126  DJ7M UA3SCU +14 (x2)
185600 +20  402  EP2AES DJ7M JN49
185630  -9 1126  DJ7M UA3SCU +14
185630 +22  402  EP2AES DJ7M JN49 (x3)
185745 -10  402  DJ7M F5LVR JN38 (x2)
191315 +24  402  UN3P DJ7M JN49 (x3)
191430  +0  803  DJ7M DO1UKR JO43 (x2)

UTC    dB Audio  Message
122245 -19 1490  DJ7M CT2IAL -01 (x2)
131445  +3 2209  DJ7M CN8WK +02 (x2)

UTC    dB Audio  Message
181345  +3  239  H49A DJ7M JN49 (x5)
182715  +8  239  VK5PJ DJ7M JN49 (x3)
193215 +12  500  CQ DX DJ7M JN49
193230 -19  500  DJ7M E70SZ JN84
193245  +8  500  CQ DX DJ7M JN49
193300 -11  500  DJ7M E70SZ JN84
193315 +19  500  CQ DX DJ7M JN49
193330 -17  501  DJ7M E70SZ JN84
193345 +17  500  CQ DX DJ7M JN49

UTC    dB Audio  Message
182645 +12 1491  ON6CQ DJ7M -18 (x2)
182730  +3 1362  DJ7M ON7GB JO21
182915  +7 1491  TF8KW DJ7M JN49 (x2)
171445 +17  789  FW1P DJ7M JN49 (x10)

UTC    dB Audio  Message
205100  +6 1084  D2ACE DJ7M R-15 (x2)
205300  +5 1084  YO4LUP DJ7M RR73
205345 -16 2210  DJ7M G4DBW JO01
205400  +1 1084  UT5UGR DJ7M R-21
205415 -19 1202  DJ7M UT5UGR RR73
205430  +6 1084  UT5UGR DJ7M 73
205545 -18 2210  DJ7M G4DBW R+02 (x2)
063200 -12 1084  HI8UD DJ7M JN49 (x4)
063415  +5  683  DJ7M SQ9CXH JO90 (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.