Mike,
I had a Flex 1500 for a while then sold it when the Elecraft KX3 came out.
On 8/14/2013 I answered a question similar to yours here on the Blind Hams
list with the text reposted below.
with the message below.

Repost of 8/1/13 email:
I bought a Flex 1500 when they first came out and began the process of
working on accessibility. First, their software, PowerSDR, has the ability
to control almost everything through key strokes as alternatives to mouse
actions. Reading the display was more of an issue. They have many very small
windows. I started developing some Jaws scripts and that path looked very
promising. I got as far as having Jaws automatically read out frequency,
band, and mode whenever those screen display elements changed.

I then bought a USB DJ control console. It's a box with a bunch of knobs and
buttons on it that send various USB commands to the PC. A ham in Europe had
developed an interface between the DJ console and the Flex PowerSDR
software. That was even better than the keyboard key strokes for controlling
the SDR software but the display area reading issue remained and still
required scripting.

Another point to keep in mind is that all of the SDR radios from  Flex or
Elecraft (as well as many conventional, non-SDR rigs)  can be controlled
with CAT commands from very simple PC software. CAT commands are available
to change rig settings and also to query the state of rig settings. I tried
HR Deluxe and it controlled the Flex 1500 PowerSDR just fine but I didn't
really find HR Deluxe very accessible via Jaws. So, an alternative I
considered was to create a highly accessible rig control software package
specifically for us blind hams. I later learned that was essentially what
the HamPod is.

After I had been working on accessibility for the 1500 for about a year (No,
I'm not that slow but I had really a lot of other things going on), I
decided I'd rather spend my limited spare time operating a ham radio than
writing software. I sold the Flex 1500 and bought an Elecraft KX3. As Buddy
said in another post, it has all the advantages of an SDR but has knobs and
buttons for the user interface, has Morse readout of the display and button
presses, and doesn't require having a PC connected to use it. It's a great
radio. It has absolutely the best receiver I've ever experienced. The only
drawback for me with my limited antennas is that it's QRP but there is a
matching Elecraft 100 Watt amp coming out soon.

Getting back more directly to your question, I found the SDR PC software was
far from accessible but I definitely believe it can be made to be accessible
with Jaws scripting, some redesign by the SDR authors, or custom rig control
packages. 

73, Jim, KY2D

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Michael Ryan
Sent: Friday, March 07, 2014 1:35 PM
To: [log in to unmask]
Subject: Flex Radios?

Hi all: 

Has anyone ever accessed any of the flex radio transceivers with jaws or WE?

I'm wondering how they'd do as an alternative accessible transceiver. 

Mike VO1AX