[1000mp] RTTY and the FT1000MP

[DGB]

Hi Rod ... in setup MMTTY in the TX tab do you have the PTT set to the 
matching port number on your pc?

I assume your connecting to pin 3 on the rtty jack from the dtr or rts 
pin on the cmptr port?

de w9yq

Tom Homewood wrote:
> The Opto likely doesn't have enough current sinking capacity.
>
> I had to go to a transistor to switch the PTT Line.
>
> The 2N2222 should work fine.
>
> 73, Tom, W1TO
>
>
> ----- Original Message ----- From: "Ted Boerkamp" <tboerkamp at cogeco.ca>
> To: "1000mp Reflector" <1000mp at mailman.qth.net>
> Sent: Saturday, March 18, 2006 2:51 PM
> Subject: [1000mp] RTTY and the FT1000MP
>
>
>> Hello Everyone,
>> Just wondered if anyone has experienced the same
>> frustration as myself in trying to get a soundblaster interface for
>> rtty working....specifically the PTT circuit.
>> I have used the opto-coupler circuits shown on a few websites for
>> this purpose and I am tying into the RTTY jack on the back of the
>> 1000MP (original model). When I click on TX in MMTTY, a LED lights
>> on the input side of the opto IC, but the 1000MP is not keyed.
>> So I know that the signal is getting to the opto-coupler but the
>> output doesn't seem to be right to key up the radio.
>> I have tried two different versions of opto ICs, one even having a
>> darlington output to no avail. Can someone confirm for me that the
>> simple resistor/transistor(2n2222) circuit shown on a number of
>> websites, will work for this radio??? or does someone have a better
>> idea for the PTT circuit?? Any help is greatly appreciated.
>> I was hoping to get my feet wet in rtty this weekend in the contest,
>> but I guess it will have to wait.
>> Thanks and 73
>>
>> Ted Boerkamp VE3SS
>>
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>
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