Alinco DJ580T "tone frequency decimal point"?

Alinco DJ580T "tone frequency decimal point"?

Post by M.C. Deu » Thu, 08 Dec 1994 06:16:07

I just got myself an Alinco DJ580T, which I'm very pleased with, but I
have question concerning its operation.

On p. 19 of the manual, it reads "When the Tone frequency is
displayed, the decimal point divides Hz and 0.1 Hz."  This "tone
frequency decimal point" appears, though, one digit to the right of
the "frequency decimal point," which divides 1 MHz and 100 kHz.  
Schematically, if reading a 500 MHz signal, normal displays as

    5 0 0.0 0

but when the tone frequency decimal point is active, which is only on
certain channels at certain times, 500 MHz would appear as

    5 0 0.0.0

but the second decimal point cannot possibly divide 1 Hz and 0.1 Hz.  
My only guess is that the tone frequency decimal point is related to a
tone squelch, but even then I don't understand the reference to the 1
Hz to 0.1 Hz dividing line.

Can anyone help me out here?  Thanks.