[NLRS] More on sequencers

[Dr. Gerald N. Johnson]

On Mon, 2006-03-27 at 17:32 -0600, Chris Elmquist wrote:
> 
> On Monday (03/27/2006 at 06:12PM -0500), Glen Overby wrote:
> > 
> > The FT-817 has an input (TX INH on the Accessory jack) that will keep it from
> > putting out RF, even when PTT is keyed.
> 
> OK.  This is even better.  This is very close to my dream radio which has
> a "Clear To Send" input.  With this sort of capability, you can hold off
> the RF as long as you like while any and everything external gets to the
> right place.  Nice.  Do you still get a PTT output from the radio that
> goes active when any transmit function is activated?  This I would call
> "Request To Send"...
> 
> So, you cause the IF radio to transmit--  it asserts "Request to Send".
> Your sequencer now starts and begins flipping relays and keying
> transverters, amps, etc.  The last step the sequencer does is assert
> "Clear to Send" back to the IF rig which allows it to finally make RF.
> 
> And this works no matter what mode the radio is in right?  CW, VOX, FM,
> whatever.
> 
> Seems ideal to me...
> 
> Chris NØJCF
> 
TenTec HF rigs do that request to send/OK to send sequence for use with
Tentec linears.

-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer