Search found 2 matches

by DerekR
Sat Mar 12, 2016 3:45 pm
Forum: SDR Antennas
Topic: DC voltage for active antenna?
Replies: 1
Views: 2092

Re: DC voltage for active antenna?

No, unfortunately it doesn't. The antenna connector is simply capacitively coupled to the input circuitry. It shouldn't be too difficult to design a dc filter with rf chokes to isolate the rf from the dc source.
by DerekR
Thu Mar 10, 2016 1:45 pm
Forum: New Users' experiences
Topic: PC (laptop) power induces significant noise
Replies: 15
Views: 3222

PC (laptop) power induces significant noise

I purchased the SDRplay two days ago, and am using it with SDR console on a new HP I5 laptop. For now the antenna is simply 50ft of hook-up wire strung out the window. I am delighted with it so far. However, I find that whenever I unplug the power supply (so it is running on battery) the noise floor...

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