Silicon Chip - 01.2022

LTDZ Spectrum Analyser. Geekcreit’s low-cost LTDZ V5.0 spectrum analyser can perform analysis over the range of 35MHz to 4.4GHz. It’s controlled from a PC via USB, and includes a tracking generator, RF amplifier and more. By Jim Rowe
Multi-Channel Speaker Protector. This compact Speaker Protector works with up to six amplifier modules and can operate from the same supply (up to ±40V DC). It perfectly suits the Hummingbird Amplifier module described last month. By Phil Prosser
The PicoMite. The PicoMite is a BASIC interpreter running on the Raspberry Pi Pico (MMBasic, in fact). It can be easily connected to a variety of displays, including OLED and e-Ink panels, with extensive support for other peripherals. By Geoff Graham & Peter Mather
Remote Control Range Extender. Converting your remote control from infrared to UHF will bring its working range up to 25m with this project! All you need to do is build these two boards, one goes near the receiving device and the other fits inside the remote. By John Clarke