john sexton wrote:

[snip]
 The lack of finer vertical scaling
in Argo is the one minor deficiency in this otherwise excellent package.
[snip]

John and the group,
    as an ad-interim way to read the frequency with 0.1 resolution, you can 
place the mouse cursor
on the spot whose frequency you want to know. The position of the mouse cursor 
is indicated in the
lower part of the screen with 0.1 Hz resolution.

73   Alberto   I2PHD