Hello to all, About "slow" asynchronous ARQ modes as ARQ FAE, Pax, Pax2 and even Packet there is no much problem to have several dozens of ms in delay. This because due to sound card buffers, the obligation to work even with slow computers, and due to slow modulation, it is introduced big margins (several hundreds of ms or even seconds depending of the mode or the number of repeaters used in Pax, for example). So this delay is not critical. And as Rick said, it is a positive point about asynchronous ARQ modes which are flexible. Moreover they are economical as they transmitted only when requested and not everytime (transmitting padding characters).
However, for quick ARQ modes (as RFSM2400 or 110A) it is certainly an other story, as the margins might be very low...and, moreover, I'm not very sure that the VOX delay is really constant... It might depend on a filter associated with a threshold. The delay with which the threshold will be switched will depend on the sound level at the input. The best is the direct switching from the serial port, then the Cat system and afterwards the VOX system. 73 Patrick ----- Original Message ----- From: "expeditionradio" <[EMAIL PROTECTED]> To: <digitalradio@yahoogroups.com> Sent: Tuesday, August 26, 2008 8:26 PM Subject: [digitalradio] Re: Signalink No Good for ARQ Modes >> Sholto Fisher wrote: >> I can't believe it makes any significant >> difference at least for ALE400 FAE. > > Hi Sholto, > > Whether you believe it or not, that's > up to you. But the math doesn't lie, > and neither does the oscilloscope. > > IMHO, any interface that chops off part of your > transmission, for whatever mode, should > be returned to the manufacturer for refund :) > > 73 Bonnie VR2/KQ6XA > > > ------------------------------------ > > Announce your digital presence via our Interactive Sked Page at > http://www.obriensweb.com/sked > > Check our other Yahoo Groups.... > http://groups.yahoo.com/group/dxlist/ > http://groups.yahoo.com/group/contesting > http://groups.yahoo.com/group/themixwgroup > Yahoo! Groups Links > > > > >
