EMRFD Message Archive 7511

Message Date From Subject
7511 2012-05-26 20:57:31 kb9fko T/R switching with straight keys with NO and NC contacts?

Hi,

Has anyone ever played with one of the straight keys that has a normally closed contact in addition to a normally open contact? I love the idea of getting some of the T/R sequencing from the mechanical source. Maybe it's not foolproof enough? I'm thinking it might be fun to try with some of the KK7B VHF kit modules, too.

Best regards,

Drew
kb9fko

7517 2012-05-28 04:35:43 ha5rxz Re: T/R switching with straight keys with NO and NC contacts?

In the never ending search for fast QSK I think you may be on to something. In the time it takes for the NC contact to open and the NO contact to close the transmit sequencing could begin. I think we need Marcus VE7CA in this discussi

7511	2012-05-26 20:57:31	kb9fko	T/R switching with straight keys with NO and NC contacts?
Message	Date	From	Subject
Hi, Has anyone ever played with one of the straight keys that has a normally closed contact in addition to a normally open contact? I love the idea of getting some of the T/R sequencing from the mechanical source. Maybe it's not foolproof enough? I'm thinking it might be fun to try with some of the KK7B VHF kit modules, too. Best regards, Drew kb9fko
7517	2012-05-28 04:35:43	ha5rxz	Re: T/R switching with straight keys with NO and NC contacts?
In the never ending search for fast QSK I think you may be on to something. In the time it takes for the NC contact to open and the NO contact to close the transmit sequencing could begin. I think we need Marcus VE7CA in this discussi