[Lowfer] Re: Software defined radio

[Alberto di Bene]

"Lyle Koehler" <lyle@mlecmn.net> wrote:

> Alberto, thanks for the link to your software defined radio application! I
> have used a downconverter on my Icom PCR-1000 receiver, feeding the IF DSP
> filter/demodulator by Vittorio, IK2CZL and it works quite well. Will try
> your software and let you know how it works.

Lyle,
  thanks for your tests. As I haven't written an help file for that 
program (nothing new here...), just
a couple of notes:

- SDRadio theoretically expects a couple of I/Q signals fed to the 
stereo input of the sound card.
  If you just have a single signal, it doesn't matter, send it to both 
left & right channels.
  The net effect will be that you will have not 48 kHz of spectrum 
available for software tuning with
  the mouse, but just 24, with the lower half mirrored in the upper half.

- The blue window indicating the passband has both the borders draggable 
with the mouse. The window
  itself can be dragged in toto, selecting it in the middle. Anyway the 
cursor on the screen will dynamically
  change shape, indicating which operation you are about to do.

If you need some help or explanations, please contact me either here on 
the reflector or privately.

73  Alberto  I2PHD