Over on the SWLing Post Blog Thomas hasuploaded an excellent tutorial showing how you can build your own YouLoop(aka a Noise-Cancelling Passive Loop). If you've been following our previous posts you'll know that we recently started selling the "YouLoop" which is designed and produced by Yo...
If the frequencies wouldn't be synchronized mixing products of the different switching frequencies could be created. One path which this can happen is that if the power inductors are placed close to each other magnetic fields on the inductors can couple and switching noise is injected between them...
LI is an ordinary ferrite loop antenna which are commonly used in AM radio receivers. The following image shows a standard AM loopstick antenna coil. How to Make the Antenna Coil L1 antenna coil is made using 73 turns of 0.3 mm super enameled copper wire over any standard ferrite rod. The...