CQ-Contest
[Top] [All Lists]

Re: [CQ-Contest] CW Keying Cable

To: "Pete Smith" <n4zr@contesting.com>
Subject: Re: [CQ-Contest] CW Keying Cable
From: "Dennis Vernacchia" <n6ki73@gmail.com>
Date: Mon, 10 Nov 2008 14:49:41 -0800
List-post: <cq-contest@contesting.com">mailto:cq-contest@contesting.com>
Pete,

Was that a W1GEE Opto Circuit

there are different flavors of Opto Circuits

N6KI

On 11/10/08, Pete Smith <n4zr@contesting.com> wrote:
> At 09:02 PM 11/9/2008, Dennis Vernacchia wrote:
>>Mal,
>>
>>Also W1GEE makes em
>>
>>http://www.hosenose.com/interfaces.asp
>>
>>Be sure the one U buy uses an Opt Coupler typr device and not descrete
>>transistor(s) - The Optos are far more reliable !!!
>>I know W1GEE uses the Opto circuits
>
> Except that, with some radios, some optocouplers do not pull the key or PTT
> lines down close enough to zero.  I'm sure there are tricks to this - the
> selection of the optocoupler or some sort of "pull-down" - but with garden
> variety ones, neither my TS-930 or Mark 5 worked properly.  The 930
> wouldn't PTT, and the Mk5 wouldn't key CW.
>
>   73, Pete
>
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest@contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest
>
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest

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