Re: HF Preselector Power
The DC connector is a 2.1mm socket. The supplied connector will fit but it is a tight fit. Before dispatch it was tested with the cable supplied to confirm that both Preselector and cable were working.
The power supply you link to on Amazon will work with the Preselector but may generate RF interference if it is close to your antenna.
We can supply a RF quiet 12 V power supply at the following link: