[TRLog] Need help with Keying/PTT/Paddle interface

[Rich McCabe]

Tree,

Is there any hope for us guys with the first generation Paragons ?

Anyway to make the TR-LOG S&P functions, etc. work with this radio?

Thanks and 73,

Rich

KD0ZV

-----Original Message-----
From: owner-trlog@contesting.com [mailto:owner-trlog@contesting.com]On
Behalf Of n6tr@teleport.com
Sent: Monday, January 25, 1999 11:01 AM
To: W4EF@pacbell.net; w2vjn@rosenet.net
Cc: TRLOG@contesting.com
Subject: RE: [TRLog] Need help with Keying/PTT/Paddle interface



> Good point - the darlington adds one diode drop to 
> the Vce saturation voltage! Exactly how low do the
> modern transceivers need to go anyway? One would think 
> that pulling them down to 1 volt would do the trick.
> Guess not, or is the strobe driver adding more voltage
> drop as Tree's post suggested?

The strobe driver add some.  Maybe a FET is the answer.

Tree

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