I have some good news to report on controlling the SDR-1000 remotely. I
installed a VNC (virtual network computing) application from
http://www.gotomypc.com on the host computer which is used for the
SDR-1000. The host is a 3.6 GHz Pentium 4 connected to a DSL line.
This allows me to control the SDR-1000 and any other applications on the
host computer from any web browser on most platforms. So far I have
tried Netscape and Safari from both Mac OSX machines and Win 98 through
Win XP machines. The remote machines have been on a wide band
connection, also.
For audio, I installed Skype http://www.skype.com on both the host and
remote machines. The control is a little slow, but usable even to the
extent that I can see the panadapter display ok. The audio reports that
I have gotten have been good, and I have been using a cheap, computer
headset for the microphone. The hardware connections consisted simply
of wiring the speaker connection from the Delta 44 to the microphone
input of the Audigy sound card that came with the host machine using a Y
connector. For the SDR-1000 microphone input, I took the headphone
output from the Audigy and connected it through a 600:600 ohm
transformer to the balanced input of the mic connector on the SDR-1000.
The ground connection on the SDR is tied to the shield around the
balanced lines and the shield around the transformer, but not to the
ground of the computer to prevent ground loops. I have had many
contacts, and it seems to work well. The good part of this experiment
is that it only took a few hours from conception to completion.
I hope this is helpful to those of you who desire remote control of the
SDR-1000.
73, Tom W0IVJ
- [Flexradio] SDR-1000 Remote Control Tom Thompson
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