Uploaded March 2026 | Updated September 2026, 1 week ago
#271 In this video I look at one of the most compact types of antenna that can be built to receive the HF bands and below. While not limited to this, the loop antenna is a type of electrically small antenna which sees widespread use in the HAM community mainly for its size and the good performance it provides. In this episode I focus mainly on the untuned small magnetic loop antenna and its used for reception purposes.
Antenna series:
Ground Plane - youtu.be/JsJBr6VdpxA
Sleeve Dipole - youtu.be/2ggDi9VP_c8
Polarization - youtu.be/G6ucYURZdpU
Helical Antenna - youtu.be/79QLO6Bn_TE
RX Loop - youtu.be/laVd2MsHDdA
Further reading:
w8ji.com/magnetic_receiving_loops.htm
hamradio.me/antennas/airspy-youloop-lf-mf-hf-mobius-receive-antenna.html
Special Thanks to all my supporters on Patreon!
If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!
If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
#271 In this video I look at one of the most compact types of antenna that can be built to receive the HF bands and below. While not limited to this, the loop antenna is a type of electrically small antenna which sees widespread use in the HAM community mainly for its size and the good performance it provides. In this episode I focus mainly on the untuned small magnetic loop antenna and its used for reception purposes.
Antenna series:
Ground Plane - youtu.be/JsJBr6VdpxA
Sleeve Dipole - youtu.be/2ggDi9VP_c8
Polarization - youtu.be/G6ucYURZdpU
Helical Antenna - youtu.be/79QLO6Bn_TE
RX Loop - youtu.be/laVd2MsHDdA
Further reading:
w8ji.com/magnetic_receiving_loops.htm
hamradio.me/antennas/airspy-youloop-lf-mf-hf-mobius-receive-antenna.html
Special Thanks to all my supporters on Patreon!
If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!
If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
![EMC tutorials - [2/3] Testing the LISN](https://i.ytimg.com/vi/nq-IhHbZdD0/mqdefault.jpg "EMC tutorials - [2/3] Testing the LISN
#117 In this video I start testing the LISN to see just how good it is. I look at multiple things starting with output impedance then go for insertion loss, input impedance and input side filtration and finally look at inter-channel isolation or cross talk.
More on the topic:
Part 1: https://youtu.be/OEvkRW5vZNA
Part 2: https://youtu.be/nq-IhHbZdD0
Part 3: https://youtu.be/M_ab0Oz2ypI
Website with CISPR limits:
https://www.com-power.com/products/lisns/li-3100
Further reading:
AN-7_Measuring_a_Line_Impedance_Stabilization_Network(LISN) - https://coretechgroup.com/wp-content/uploads/2017/01/AN-7_Measuring_a_Line_Impedance_Stabilization_NetworkLISN.pdf
Special Thanks to all my supporters on Patreon! Especially @afiskon and Ralf B.!
If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!
If you want to support the creation of more and better videos please consider checking out: https://www.patreon.com/feszelectronics")
