[Elecraft] Bartg Sprint 75

[Claude Du Berger]

Thanks Lyle and Joe.
I am all set. Tested this morning with a friend, 75 baud.
400Hz filter plus Dual PB at this end and all was working well
even with low signal in the noise.

73, Claude
  ----- Original Message ----- 
  From: Joe Subich, W4TV 
  To: Claude Du Berger ; Elecraft Reflector 
  Sent: Monday, May 31, 2010 11:09 PM
  Subject: Re: [Elecraft] Bartg Sprint 75



  Necessary bandwidth for 75 baud 170 Hz shift RTTY is
  about 360 Hz - approximately (75/2 * 5 + 170).  A 400
  Hz roofing filter is probably close to optimum for
  75 baud RTTY.

  Note - 200 Hz is theoretically too narrow for even 45.45
  baud RTTY (necessary bandwidth approximately 280 Hz).

  73,

      ... Joe, W4TV

  On 5/31/2010 9:38 PM, Claude Du Berger wrote:
  > Hello Group.
  > June 12 is the Bartg Sprint 75 (test) Contest.
  > At this speed, what is the best filter to use and can we
  > still use the so sharp Dual PB?
  >
  > Claude Du Berger 
  > ve2fk at arrl.net
  >