Re: SDRuno bias-t and Loop Amplifier +


Chris Moulding
 

Hi Ray,

As you have found the minimum voltage for the Loop Antenna Amplifier + is just below 5 V.

The USB voltage output from some computers may be lower than 5 V and in that case an external USB hub with a separate 5 V power supply is a good solution.

There is an improvement in gain and IP3 performance if the amplifier is fed via a bias-tee with voltages up to 12 V.

Regards,

Chris

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