On 15 Nov 2001, at 11:02, n4uk@mindspring.com wrote:
> I have a technical question for those of you who are using NA or CT
> to send CW from a parallel port. Is there a way to have the program
> key up the rig without relying on VOX and the transmission of a
> character first to do this? I built parallel interfaces long ago
> that send cw from LPT but rely on VOX. THis is not good for the TR
> relays especially when an antenna relay system, lockout relays, etc
> are used that add delay to when the amplifier relays are finally
> keyed up. This causes the RF relays to occasionally be hot keyed
> which will eventually lead to relay failure. I need to have the rig
> and all relays keyed first and THEN the CW to be sent a few
> milliseconds later. Is anyone doing it this way????
I don't know about NA or CT, but TR does this using the PTT
line...programable amount of delay before the CW starts.
73 de Lee
--
Lee Hiers, AA4GA
Cornelia, GA
aa4ga@contesting.com
--
SECC on the Web: http://secc.contesting.com/
Submissions: secc@contesting.com
Administrative requests: secc-REQUEST@contesting.com
Problems: owner-secc@contesting.com
|