RA4ABH — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,203 messages

Active dates

72 UTC dates

Estimated median S/N

-7.8 dB

Estimated 10th-90th percentile

-18 to +2.2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 339, moderate (-15 to -9 dB) 638, strong (≥ -8 dB) 1,226.

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 RA4ABH 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 RA4ABH

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

LO20 · 1,353 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,646 km (approx.)

Last such locator decoded

2026-09-08 17:25 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
021600 -14 1625  K4YT RA4ABH -19
021645  -1 2402  RA4ABH DO9BAU JO62 (x7)
172215  -1  911  RA4ABH R4CBE -01 (x2)
172545 -18 1664  R4CGK RA4ABH LO20
172830 +10 2523  RA4ABH R2GFN -07 (x2)
190715  +0 1595  RA4ABH R73SLET -09
191015 +12 2743  RA4ABH RA4FHO -01

UTC    dB Audio  Message
155330  +1 1615  RA4ABH OZ/KD0NDU -17 (x2)
171715 -15 1394  RA4ABH UK8GG -13 (x2)
020345 -13 1535  KP4MAQ RA4ABH LO20 (x2)
035930 -16 1662  CQ RA4ABH LO20
040030 -17 1661  SP5ATA RA4ABH -17
163430  -1 1816  RA4ABH DJ0MAB JN49
163745  -7 1816  DJ0MAB RA4ABH -22
163815  -9 2387  RC2DD RA4ABH LO20
164030  -3 2237  RA4ABH R1BNJ -06 (x2)
164200 -24 1658  RA4ABH UA1ALY KO49
164445  -2 1659  UA1ALY RA4ABH -14

UTC    dB Audio  Message
185130 -12 1282  RA4ABH RN3RFZ LO02 (x3)
175630 -18 1896  RA4ABH UA4FKT LO23 (x2)
175700 -16 2448  RA4ABH RV6ARZ KN84 (x5)
170400  +1 2215  RA4ABH R1943OD -22 (x2)
171345  -8 1274  RA4ABH R6OE RR73
172715 -16 2065  RA4ABH RM4W R-21 (x2)

UTC    dB Audio  Message
044400 -18 1248  ZL2BH RA4ABH LO20 (x3)
044715 -13 2338  RA4ABH EA5HEU JN00 (x7)
045900 -22 1344  ZL1BQD RA4ABH LO20 (x3)
160745  +0  590  RA4ABH JA3EGF -16 (x2)

UTC    dB Audio  Message
132645 -18 1392  PA1HGM RA4ABH R-03
132730 -23 1420  RA4ABH PA1HGM RR73 (x2)
133115 -13  685  RZ5D RA4ABH +06
081300  -7 2546  RA4ABH SV1EKI R-16 (x2)
092445 -22 1404  RA4ABH TA1SW RR73
102630 -10 1028  RA4ABH <...> -16
102700  -9 1028  RA4ABH RR73; DN9WL <...> -18
092000 -13 1402  RA4ABH R3KJF KO91 (x3)
100900 -10 2669  RA4ABH RL1B -19
101245  -8 1352  RA4ABH ON4AZR -07 (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.