I use a Samsung Galaxy S device to monitor my LF grabber while I'm
not in the shack and it works FB. Also have the DroidPSK app running
thru a homebrew interface. The 4-pin headphone/mike jack has the
same configuration as the one on my Compaq netbook: tip is left audio
out, ring1 right audio out, ring2 is ground and sleeve is mike
input. The phone senses when external mike is being used (2.2 K ohms
from sleeve to ring2 works), and disables the internal mike(s). No
doubt the device would be suitable for QRSS display in the field, but
Spectrum Lab might be a bit much, hi! Only problem I see is that
there doesn't seem to be any way to adjust the audio level to the
integrated sound chip like with the sliders on a Windows machine and
the mike input is quite sensitive so an external pot is needed to
attenuate the audio input so the phone doesn't compress / distort it
before any amplitude measurements are made. I'm probably too old to
start writing apps but it doesn't look too difficult.
Bill VE2IQ
At 03:51 PM 2/24/2012, Warren, K2ORS wrote:
Hello the list,
I quite accidentally discovered that there are now "apps" for ham
radio data modes for the Android phones including send/receive for
morse, psk31, and RTTY:
http://www.wolphi.com/
The psk31 app has a waterfall display, it seems that it should be
possible to have an Android that would display QRSS signals and make
for a very small and portable setup.
Some of these apps use the cell phone microphone to pick up audio
from the radio's speaker, but there are hard-wired interfaces
(probably much more suitable for QRSS) as well:
http://www.wolphi.com/android-apps/droidpsk/droidpsk-to-ft817-interface
Thoughts?
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