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Subject:
From:
Steve Forst <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sat, 4 Jan 2014 23:13:32 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (115 lines)
Oops, should have said  "toggle insert-s" and not "alt-s" in JAWS.

2 other things:
Don't overdrive your sound card input.    You may have to bring it way 
down (10 % or even less).  I don't know if MMTTY still  has the 
"overload" warning that will flash on the screen and  may  be picked up 
by JAWS if the sound card level is too high.

Also, in MMTTY,  bring up the "profiles" drop down menu with alt-s. 
You can arrow through about 6 different profiles such as "standard 
rtty", "fluttered signals", "multipath", etc.  Try each in turn and see 
what works best.   They all have different parameters and  one may work 
better at a given time.

73, Steve KW3A


On 1/4/2014 10:04 PM, Steve Forst wrote:
> John,
>
> Try  setting the filter bandwidth as narrow as possible and tune slowly
> across the signal.   Since you aren't trying to transmit, and only
> decode,  set your radio to FSK orRTTY mode if availible.   Depending on
> your radio, you may be able to get narrower bandwidth that way.  You can
> try either using the jaws cursor to read what is in the rx window, or
> toggle alt-s to "all" and see if that gives you good copy of incoming text.
>
> You may also want to  go high in whatever band  and try and get  a
> "lone" signal to try and copy instead of  trying to sort out a bunch  in
> the middle of a  pile.
>
> 73, Steve KW3A
>
>
>
> On 1/4/2014 9:05 PM, John Vernaleken wrote:
>> Stebe
>> Since there is a RTTY contest this weekend I tried to use MMTTY to
>> receive
>> signals. I use JAWS and sometimes think can hear some some CQs. It is
>> certainly a challenge. I guess the real issue is I don't know if it is a
>> JAWS problem or I AM NOT USING mmtty CORRECTLY.
>>
>> John  KC2QJB
>>
>>
>>   to
>> -----Original Message-----
>> From: For blind ham radio operators
>> [mailto:[log in to unmask]]
>> On Behalf Of Steve Forst
>> Sent: Thursday, November 14, 2013 9:04 PM
>> To: [log in to unmask]
>> Subject: Re: Digital Modes
>>
>> John,
>>
>>
>> I'm not a big digital guy, and limit myself to RTTY using MMTTY (free
>> download).   JAWS will spit out the incoming text in alpha numeric form,
>> so  not easy to do a  long rag chew unless you are a good speller,but
>> just
>> fine for contests or chasing DX.  You can also monkey with the JAWS
>> cursor to get lines of text.    To tune: just tune slowly across the
>> signal until JAWS  starts to give good copy.   Other screen readers  may
>> do better (or worse).
>>
>> For PSK, look at Digipan (free download).  You will need to use the JAWS
>> cursor to  get incoming text to read without repeating itself.  There
>> is a
>> menu item "use arrows for seek" (or some such), that when checked,
>> will let
>> you use the arrow keys on the keyboard to jump to the next signal up
>> or down
>> the band.
>>
>>    If you have an old Win 98 pc laying around, there is a self voicing
>> PSK
>> program for  the blind called Digitalk.  It won't work on later
>> versions of
>> windows.
>>
>> There are a few articles on digital mode operation with screen
>> readers  at:
>>
>> hamradioandvision.com
>>
>>
>> Good luck.   I haven't done much RTTY in the past year, but I do have
>> over 100 countries in the log, so it can be done if you are willing to
>> put a
>> little time into it and  are willing to except the fact that everything
>> isn't always going to work perfect.
>>
>> 73, Steve KW3A
>>
>> On 11/14/2013 8:06 PM, John Vernaleken wrote:
>>> Hello All,
>>> I am still researching operating Digital Modes as a Blind Ham, there
>>> seems to be many opinions if this is possible. Can anyone on this
>>> chime in with their opinions, experiences or Suggestions? I use JAWS
>>> and could try NVDA if necessary.
>>>
>>> Hope to work some of you this weekend in SSB  Sweepstakes.
>>>
>>> Thanks
>>> John KC2QJB
>>>
>>>
>>>
>>>
>>
>>
>>

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