[TenTec] Orions & contesting

[WA3FIY]

I guess I don't understand the apparent confusion here.

On 30 Dec 2003 at 9:44, K3BU at aol.com wrote:

> 
> Just to underline:
> Advantages of having and using PTT control line on CW:
> 1. Smoother, not chopped up CW characters.
> 2. Positive control over timing, control of linears, and other gizmos in SO2R 
> setups.
> 3. Saves relays.
> 4. Eliminates QSK chatter, noise between characters when not wanted.
> 5. Maintains wiring, continuity, functionality between SSB and CW modes.
> 
Every one of the above matters is done by connecting the PTT 
output from the computer in parallel with the Amplifier control 
line of the Orion (or any other Ten Tec transceiver) as has 
already been described.  The amplifier will never be hot 
switched and you have your choice of PTT CW, semi break-in 
CW or full break-in CW with a compatible amplifier.  What 
could be more flexible than that?

> Disadvantages:
> 0. NONE
> 
Yes there are disadvantages.  Here I use the PTT line for 
multiple functions.   As a PTT line when on SSB, as a CW keying 
line when sending CW from my computer and as a PTT line when 
on RTTY/SSTV/PSK.  The last two functions use a single 
interface line from my computer which is effectively in parallel 
with the mic PTT switch.   The same line keys the rig on CW 
and puts it into transmit for the sound card modes.  This would 
not be possible if the PTT line was configured as you suggest.  

So...with the Ten Tec approach we loose nothing and gain 
flexibility.  We just have to look at things with an open mind.



73,

-Lee-   WA3FIY