Giorno: 26 Febbraio 2021

Come progettare un filtro di Butterworth per applicazioni generiche che richiedono un elevato livello di selettività e un ottimo livello di integrazione circuitale. Un filtro…

Knights here in the UK have become the first to offer the new President Randy III at a price of £189.00 The radio is expected…

Josh Tanner, the Australian filmmaker who produced the thriller Decommissioned  by Perception Pictures, has explained how he came up with the idea to develop the movie…

An article describing how radio amateurs can help fill the information “donut hole” by providing post-earthquake “did you feel it” (DYFI) reports via Winlink HF radio email appeared on…

The ARRL offered surprise boxes as part of their ‘Expo at Home’ for the 2021 Orlando Hamcation. I ordered a mystery apparel pack and a…

Tim, W4FTP, asks how he can use some tall but skinny trees along the back of his property as part of his antenna system. We…

The amateur radio communications team of the Florida Baptist Disaster Relief has created a multi-site radio communications exercise dubbed “Whirlwind Boom,” designed to bring together…