HA8ZB — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

452 messages

Active dates

28 UTC dates

Estimated median S/N

+4 dB

Estimated 10th-90th percentile

-9 to +13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 405.

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 HA8ZB 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 HA8ZB

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

JN96 · 358 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

435 km (approx.)

Last such locator decoded

2026-09-19 20:03 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
200015  +5 1447  RI1FJZ HA8ZB JN96 (x8)
200445 +24 1447  SQ8CTR HA8ZB R+07
200500 +11 1450  HA8ZB SQ8CTR RR73
200515 +25 1447  SQ8CTR HA8ZB 73
200530  -9  590  HA8ZB EA1IOK IN62 (x3)
200645 +27 1447  EA1IOK HA8ZB RR73

UTC    dB Audio  Message
194715  +4 1158  RI1FJZ HA8ZB JN96 (x15)

UTC    dB Audio  Message
043045  -8  719  RI1FJZ HA8ZB R-18
143515  +3 1584  II0IHMG HA8ZB JN96 (x11)
144215  +8 1114  TK/4O7CC HA8ZB JN96 (x3)

UTC    dB Audio  Message
192315 +11  587  IK4CBO HA8ZB +11 (x2)
055845  +8 1782  AM42SDC HA8ZB JN96 (x4)
060030  -8 1133  HA8ZB DF1KG JO31 (x2)
060115  +9 1781  DF1KG HA8ZB +00
060130  -7 1133  HA8ZB DF1KG R+05
060145  +7 1781  DF1KG HA8ZB RR73
060200 -10 1133  HA8ZB DF1KG 73
061200  +4 1911  I1/OE1AAJ HA8ZB JN96 (x3)

UTC    dB Audio  Message
102600 -18 1795  HA8ZB CN2DX RR73
090730  +3 2717  TK5K HA8ZB JN96 (x4)
100215  -9 2121  HA8ZB UA6YW RR73 (x2)
072345 -14 1888  HA8ZB DN9SGE JO42 (x4)
073515 -17 1255  HA8ZB DN9AD JO52 (x2)

UTC    dB Audio  Message
193600  +2  485  HA8ZB LZ2VQ -15
194115  -7  820  HA8ZB DL70ESSEN -01
084515  +3  562  K4A HA8ZB JN96 (x2)
195015 -13 1734  D2IM HA8ZB JN96 (x2)
195300 -16 2489  HA8ZB JF1LMB PM95 (x3)
200000  +0 2542  HA8ZB D2IM -07
200015 -13 2433  D2IM HA8ZB R-05
200030  +2 2542  HA8ZB D2IM RR73
200045 -11 2433  D2IM HA8ZB 73
200100  -7 1809  HA8ZB IZ4JMA JN54 (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.