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[WriteLog] Voice keying and FT1000D

To: <writelog@contesting.com>
Subject: [WriteLog] Voice keying and FT1000D
From: w8ik@arrl.net (Joe Subich, W8IK)
Date: Sun, 27 Feb 2000 11:21:45 -0500


> 
> The FT1000D mic input is 600 ohms.  I think the sound card output 
> is 4 or 8 ohms.  Could that be part of the problem?
> 
> Any suggestions or ideas would be appreciated.
> 

Randy, 

One way to tell is to connect a 4 Ohm to 1000 Ohm isolation 
transformer between the sound card output and the FT-1000. 
Simply substitute it for the 600:600 Ohm transformer recommended 
in the WriteLog documentation.  The alternative is a buffer 
amplifier (pre-amp) between the sound card and the FT-1000 
(and turn off the "boost" in the sound card mic settings). 

Almost sounds like the Dell is using the Ensonic chip set 
for the sound (aka Soundblaster PCI-128). Even the lowly 
old SB-16 works better than the Ensonic chip set!  

73,
   ... Joe Subich, W8IK/4
       <W8IK@ARRL.NET>
 

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