[Elecraft] MMTTY FSK

[Bob Naumann]

Where did the idea that FSK is more difficult come from?

FSK requires no setting of transmit audio levels or concerns about sound
card settings - for transmission.

To me, this cuts the difficulty in half.

Using a RigExpert or MicroHam (or their equivalent) Interface it's basically
automatic and requires no fiddling with levels.

100% FSK RTTY here. Zero problems.

73,

Bob W5OV

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike
Sent: Saturday, June 12, 2010 6:37 AM
To: Brett Howard
Cc: elecraft
Subject: Re: [Elecraft] MMTTY FSK

Fair enough.

Mike NF4L

Brett Howard wrote:
> I'm one of those guys that is a glutton for punishment...  To me the
> fact that FSK is more complicated and I've not done it before is the
> actual advantage.  I do see FSK as a method that is slightly less prone
> to TX distortions.  I built my interface using opto couplers and then
> put in a few jumpers to allow for several grounding situations.  Turned
> out that 100% disconnect between all grounds is working very well.
>
> ~Brett (N7MG)
>
> On Fri, 2010-06-11 at 19:28 -0400, Mike wrote:
>   
>> When I got my K3, I was hot to get it set up on FSK. Somebody here 
>> convinced me to try AFSK, and I was blown away by how simple it is, and 
>> less complicated to set up. AFAICT, FSK offers no advantage.
>>
>> 73, Mike NF4L
>>
>> Brett Howard wrote:
>>     
>>> Ok so I've never done RTTY via true FSK only audio modes...  I have to
>>> put in a fence this weekend so I won't be able to play this weekend but
>>> I'm trying to get ready for FD...  
>>>
>>> So I've made an interface that consists of a couple opto couplers (one
>>> for FSK and one for PTT)...  I've got the radio all setup and shorting
>>> the FSK_IN pin to GND makes the radio switch tones as it should...
>>>
>>> However I'm having issues getting MMTTY to open the COM port.  I'm using
>>> an FTDI based USB->RS232 converter.  The MMTTY settings have the USB
>>> button right there and they tell me to click on the last 3 options.
>>> I've tried all 3 but in all 3 modes I get the unable to open COM3
>>> error...
>>>
>>> I'm going to be googling and seeing if anyone else has had this issue
>>> with me but I figured I'd pose here in the event someone here has
>>> already run into this issue.
>>>
>>> ~Brett (N7MG)
>>>
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>>>   
>>>       
>>     
>
>
>
>   


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