there are a few variants on that page which are optimised for various modes ;)
73
Leland
On 16 Mar 2010, at 07:51, Leland Vandervort wrote:
>
> The RTTY interfaces often tend to be very low impedence and risk overloading
> by plugging a sound card audio output directly to it.
>
> There is a useful schematic at the link below for interfacing a sound card to
> the mic or aux input, and includes RS232 control of the PTT.
>
> Shopping list consists of a 470ohm, 8ohm, and 4.7ohm resistor, a diode, and
> an NPN transistor.
>
>
> http://www.iw5edi.com/ham-radio-reference/sound-card-interfacing-for-rtty-psk31-and-sstv
>
> 73
>
> Leland
> g0szp/aa2qx
>
>
>
> On 16 Mar 2010, at 02:33, Claude Frantz wrote:
>
>> Hello Folk !
>>
>> Do you have any experience about the coupling of the FT2000 to a
>> notebook computer having only an audio out and a mike in jack ? I think
>> the RTTY jack is the prefered way. Right ? Are the impededance and the
>> level OK for a direct coupling or is any attenuator or amplificator
>> necessary ?
>>
>> Thanks a lot !
>>
>> Claude
>>
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>
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