1
Safety feature
Important! One safety design feature of the SDR4++ receiver is that when it or the
PC is powered down all the bandpass relays are powered off shorting the bandpass
filters to ground to provide extra isolation and protection to the PC. This can also
happen when changing the SDR program.
After powering up the receiver or changing the SDR program the receiver starts up
at a default frequency of 7.050 MHz. You can then select the required frequency of
operation.
3
WARNING!
The SDR4++ receiver has been carefully designed to meet CE and FCC
specifications and also provide protection to your computer from static
