gMFSK Blues

[Karl Larsen]

Rickey Moore wrote:
> On Sat, 2006-05-13 at 19:28 -0600, Karl Larsen wrote:
>   
>>     I compiled a copy of this application for FC4 and it looks perfect. 
>> But when I tried to use it it does not get any signal from the speaker 
>> of the radio. I can send tones to the soundcard DSB engine and turn on 
>> the transmitter and send data in any of several modes. But data from the 
>> radio to the computer is not there. I recall others complaining about this.
>>
>>     I still have on this huge 160 GB hard drive a FC2 system that still 
>> works and I will verify that gMFSK works fine there and move back to 
>> that version. I have had nothing but profound problems with FC4 and FC5.
>>     
>
> Is your soundcard set to full duplex? So you can send and receive if
> you're using sound out / microphone in at once?
    I do not know Rick, but it does act as if it is half-duplex. I was 
just on my old Fedora Core 2 and there gMFSK works fine. By accident the 
soundcard must be set for full duplex.

    Now my problem is, how do you set a soundcard to half or full? I 
have not a clue. I wonder if the Volume Control has an effect on this? I 
clicked for help but none was forth-coming.

Karl

>  The default is half
> duplex and an upgrade would set it like that. I think... that sounds
> like your problem. Note: full duplex will eat up some cpu. I use KDE so
> going into control center and editing the sound setup is where I would
> change the duplex option. Hope that helps. 
>
> ONE DAY, when I retire to a sailboat, I'll want to understand how
> boaters use radio to send / recieve email html, etc. Is there a good
> website you'd recommend? Ric
>  
>
>