CQ-Contest
[Top] [All Lists]

[CQ-Contest] Sound Card DVP - DX Doubler

Subject: [CQ-Contest] Sound Card DVP - DX Doubler
From: andrew.faber@gte.net (Andrew Faber)
Date: Mon Jun 16 10:35:54 2003
Pete,
   There's a commercial version of what you are describing built and sold by
W2IHY (Julius, who also works on audio gadgets for hams).  I bought one
recently and it seems to work quite well.  He's very easy to deal with (see
his stellar reviews on eHam).
  73, andy, ae6y
----- Original Message ----- 
From: "Pete Smith" <n4zr@contesting.com>
To: <cq-contest@contesting.com>
Sent: Monday, June 16, 2003 5:08 AM
Subject: Re: [CQ-Contest] Sound Card DVP - DX Doubler


> At 09:41 PM 6/15/03 -0400, Blake Meinecke wrote:
> >Say, how is everyone getting sound card voice keyer audio to a DXDoubler
> >box?  Of course a straight-through "Y" connector doesn't work here.
> >Opto-isolater, x-former, or something??  A simple circuit described to me
> >direct would be wonderful.  Google and list-searches have not yielded
> >anything.
>
> I use a simple interface with Radio Shack isolation transformers, together
> with a voltage divider in the "line out" line to reduce the voltage so
that
> it doesn't overdrive the mike input.  The trick is that I feed the mike
> audio THROUGH the soundcard -- requires a soundcard that will work full
> duplex, but most, including ancient ISA Sound Blaster 16s, meet that spec.
>
> If anyone needs a schematic, I'll be glad to send one -- I've submitted a
> brief article to NCJ too.
>
> 73, Pete N4ZR
> The World HF Contest Station Database was updated 9 May 03.
> Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
> ---------------------------------------------------------------
>     The world's top contesters battle it out in Finland!
> THE OFFICIAL FILM of WRTC 2002 now on professional DVD and VHS!
>        http://home1.pacific.net.sg/~jamesb/
> ---------------------------------------------------------------
>
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest@contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest
>

<Prev in Thread] Current Thread [Next in Thread>