Hi Steve,

In mmtty.ini, SQLevel varies from 0 - 1024, and is expressed in scientific
notation: 0.000000e+00 - 1.024000e+03. You need to close and reopen MMTTy
for this change to take affect, because mmttyini is only read at program
startup. This value is also apparently written to userpara.ini under the
[section] which corresponds to the profile you are using, but that file
seems only to be written at program close. (My friend dind't spend any time
switching profiles to verify this, though.)

ERemote.txt contains information on how to control MMTTY through another
program. So, if you are a Windows programmer, you can write an application
which will send and receive  windows messages to MMTTY. The list of messages
you can send/receive seems quite comprehensive, including a message for
setting the squelch level. Neat stuff!

--Doug, AC7T


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: Sunday, July 08, 2012 5:32 PM
To: [log in to unmask]
Subject: Re: RTTY for Doug

Doug,
That makes sense. So,   I would guess that sq=0 means that it is off, 
while sq=1 would be on.  If that is the case, perhaps the setting already
set in sqlevel=  would have some effect.  i'd be interested in hearing what
your friend tells you.

I usually run the FSK filter at 250 hz, which is the lowest setting, and
along with least amount of audio input to the sound card to give good 
print, I can limit the amount of garbage text.   Using the squelch would 
probably be a nice addition.

73, Steve KW3A

On 7/8/2012 8:00 PM, Doug Payne wrote:
> Steve,
>
> Thanks for pointing this out. I was wondering whether there was a 
> config or ini file I could adjust, but I hadn't gotten around to looking
yet.
>
>>From what I read the SQ button in the control panel just enables or 
>>disables
> the squelch, and adjusting the level involves moving an indicator via 
> the mouse. I think I will call up a sighted friend who uses MMTTY, and 
> ask him to adjust his squelch setting to see how the config file 
> entries are affected.
>
> So, have you been able to adjust your setup so MMTTY doesn't decode 
> anything when there is no signal in the passband? I know you said you 
> don't use the software squelch.
>
> --Doug, AC7T
> -----Original Message-----
> From: For blind ham radio operators 
> [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Sunday, July 08, 2012 11:18 AM
> To: [log in to unmask]
> Subject: Re: RTTY for Doug
>
> Doug,
>
> I'll throw one more thing at you:  If you can't set the squelch to your
> liking via the control panel, maybe you   can edit the config file.
>
> I've found over the years that some programs that aren't very accessible
> in the normal fashion  can be  tweaked   via the configuration file.
>
> I haven't done this, and can't promise it will work, but may be worth a
try.
>
> You will find the file under the  mmtty folder of your programs files 
> folder.  It's just a text file and will open with notepad.  I'd 
> suggest backing up the file first just to be safe.
>
> In the text file you will see:
> "AFCSQ=32"  which is the AFC squelch you find  under the "setup mmtty"
> dropdown menu.
>
> Further down is:
>
> SQ=0
> SQLevel=6.000000e+02
>
> I'm wondering if changing the sq=0 to a higher number  may be the same
> as changing it  from the control panel.   I have no idea what the second
> line is, and I wouldn't mess with it myself, but you may be braver than
me.
>
> Even if this works, it's not something you would do on the fly while 
> operating, but  maybe you could find a setting that gives satisfactory 
> results.
>
> 73, Steve KW3A
>
>
>