[digitalradio] Re: What mean Too Wide?

2010-05-25 Thread KB3FXI
Jaak,

Overdriving your audio into the rig causes your intended transmitted audio in 
the passband to go non-linear and put images out all over the waterfall.

Here's a great video on the subject:

PSK31 Transmitter Level Adjustment
http://www.youtube.com/watch?v=I3CwHaX7t5M

-Dave, KB3FXI


--- In digitalradio@yahoogroups.com, Jaak Hohensee jaak.hohen...@... wrote:

 Hi
 
 Sometimes we hear, that mode or format is too wide. What this mean? 
 Context - poor or disturbed propagation.
 Please answer. Your answer help to see how different people understand 
 the term too wide.
 http://contestia.blogspot.com/
 
 tnx!
 
 -- 
 vy 73, Jaak
 es1hj





[digitalradio] Re: What mean Too Wide?

2010-05-25 Thread jon_g4fut
An example of too wide will be too much audio (mike gain)drive on an SSB 
signal.  This results in splatter over other signals which are near. The same 
in PSK, but here you can see the splatter as a wide signal.

--- In digitalradio@yahoogroups.com, KB3FXI kb3...@... wrote:

 Jaak,
 
 Overdriving your audio into the rig causes your intended transmitted audio in 
 the passband to go non-linear and put images out all over the waterfall.
 
 Here's a great video on the subject:
 
 PSK31 Transmitter Level Adjustment
 http://www.youtube.com/watch?v=I3CwHaX7t5M
 
 -Dave, KB3FXI
 
 
 --- In digitalradio@yahoogroups.com, Jaak Hohensee jaak.hohensee@ wrote:
 
  Hi
  
  Sometimes we hear, that mode or format is too wide. What this mean? 
  Context - poor or disturbed propagation.
  Please answer. Your answer help to see how different people understand 
  the term too wide.
  http://contestia.blogspot.com/
  
  tnx!
  
  -- 
  vy 73, Jaak
  es1hj