I’d like to use a broadband active antenna on my SunSDR2 Pro in the second HF port, with a standard antenna such as my Super Antenna MP1 in the first HF antenna port. The transceiver has a bandscope that covers 160m to 6m and it would be useful to have a picture of other bands to hand, and be able to listen to them without re-configuring the main antenna. For example if I am working 20m and want to see what activity there is on 60m this would allow me to do it without having to add a loading coil to the antenna and extra counterpoises first.
I contacted the manufacture of the antenna (the COMPACT COIL ACTIVE HF AERIAL from Spectrum Communications) and they told me that the antenna input must be grounded when transmitting to stop the circuit being damaged.
I’m presuming I may need to build a remote control circuit to achieve this? Has anyone completed this sort of task?
Many thanks, Mark.