[1000mp] Sound card interface to FT-1000MP mic input

[Robert Dorchuck W6VY]

The sound card speaker output is 8 ohms.  Mic input on the MP is 600
ohms.  I would use a 8:600 ohm transformer.  I do not think 1:1 would
be appropriate.  Available at Mouser, etc.

Bob  W6VY


--- "A.J.C." <n2ki at amsat.org> wrote:

> Dave,
> 
> You can use the 1:1 isolation transformer from Radio Shack.  They are
> fine.
> 
> Tony - N2KI
> SYSOP - N2KI DX CLUSTER
> dxc.n2ki.com:7300
> RF Gateway 145.650
> Website: www.n2ki.com
> DX Spoken Here
> 
> 
> > -----Original Message-----
> > From: 1000mp-bounces at mailman.qth.net [mailto:1000mp-
> > bounces at mailman.qth.net] On Behalf Of Dave Hawes
> > Sent: September 20, 2005 05:35
> > To: 1000mp at mailman.qth.net
> > Subject: [1000mp] Sound card interface to FT-1000MP mic input
> > 
> > Can anyone suggest an appropriate audio isolation transformer to
> use
> > between a computer sound card speaker output and the microphone
> > input
> > on the MP?  This will be used for contest voice memory keying. 
> Radio
> > Shack, Mouser, DigiKey, etc. all would be OK.
> > 
> > Thanks in advance.
> > 
> > 73 - Dave N3RD
> > 
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