DF9HT/P — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,581 messages

Active dates

57 UTC dates

Estimated median S/N

-9.4 dB

Estimated 10th-90th percentile

-20 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 360, moderate (-15 to -9 dB) 527, strong (≥ -8 dB) 694.

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 DF9HT/P 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 DF9HT/P

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

JO53 · 776 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

841 km (approx.)

Last such locator decoded

2026-09-16 07:20 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
071545  -7  734  CQ DF9HT/P JO53 (x2)
071645 -11 1471  KB3Z DF9HT/P JO53 (x3)
071815 -13 1471  CQ DF9HT/P JO53 (x5)
072130  -1 2433  DF9HT/P SP4GDW JO93
073500 -20 1471  DF9HT/P DB2VS +06
073645 -16 1471  DF9HT/P OT4R -10 (x3)

UTC    dB Audio  Message
182200 -12  708  CQ DF9HT/P JO53
182545 -16 1469  DF9HT/P 9A2KS 73
183430 -13  707  UW5KW DF9HT/P +13 (x2)
093145  -2 1701  DF9HT/P IN3XUG JN55 (x5)
094145 -15 1701  DF9HT/P IU0JIW 73
075930 -13 1692  DF9HT/P IK4TVP +11 (x3)
081430  -4 1180  DF9HT/P IZ3NVR -03 (x2)

UTC    dB Audio  Message
204430  +1  747  DF9HT/P F4ACR IN96 (x3)
204645  -6  746  CQ DF9HT/P JO53
204700  +0  747  DF9HT/P F4ACR IN96
204715  -3  745  CQ DF9HT/P JO53 (x3)
205000  -3  747  DF9HT/P F4ACR R-11 (x2)
205415  -3  746  CQ DF9HT/P JO53 (x5)

UTC    dB Audio  Message
185330 +16 1265  DF9HT/P HA7TM JN97 (x3)
185500 +12 1264  DF9HT/P E70SZ R-08
185615 -14 1265  CQ DF9HT/P JO53
191200 -17 1275  DF9HT/P DA6WA JO30
191830  +9  690  DF9HT/P DL1UDO JO31 (x8)

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.